# --- T2-COPYRIGHT-NOTE-BEGIN ---
# T2 SDE: package/*/strace/riscv32_autoreconf.patch
# Copyright (C) 2022 - 2024 The T2 SDE Project
# 
# This Copyright note is generated by scripts/Create-CopyPatch,
# more information can be found in the files COPYING and README.
# 
# This patch file is dual-licensed. It is available under the license the
# patched project is licensed under, as long as it is an OpenSource license
# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
# of the GNU General Public License version 2 as used by the T2 SDE.
# --- T2-COPYRIGHT-NOTE-END ---

sed -i '/^---/,$d' package/*/strace/riscv32_autoreconf.patch
for f in `find -name Makefile.in -o -name configure | grep -v test `; do  cp -vf $f{,.vanilla}; done
autoreconf
cd ..
fixfilediff riscv32_autoreconf.patch

--- strace-6.8/bundled/Makefile.in.vanilla	2024-03-22 22:25:11.598616195 +0100
+++ strace-6.8/bundled/Makefile.in	2024-03-22 22:25:14.902616029 +0100
@@ -193,7 +193,6 @@
 ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
-EGREP = @EGREP@
 ENABLE_VALGRIND_drd = @ENABLE_VALGRIND_drd@
 ENABLE_VALGRIND_helgrind = @ENABLE_VALGRIND_helgrind@
 ENABLE_VALGRIND_memcheck = @ENABLE_VALGRIND_memcheck@
@@ -202,7 +201,6 @@
 EXEEXT = @EXEEXT@
 GCOV = @GCOV@
 GENHTML = @GENHTML@
-GREP = @GREP@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
--- strace-6.8/src/Makefile.in.vanilla	2024-03-22 22:25:11.634616193 +0100
+++ strace-6.8/src/Makefile.in	2024-03-22 22:25:15.340616007 +0100
@@ -1120,7 +1120,6 @@
 ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
-EGREP = @EGREP@
 ENABLE_VALGRIND_drd = @ENABLE_VALGRIND_drd@
 ENABLE_VALGRIND_helgrind = @ENABLE_VALGRIND_helgrind@
 ENABLE_VALGRIND_memcheck = @ENABLE_VALGRIND_memcheck@
@@ -1129,7 +1128,6 @@
 EXEEXT = @EXEEXT@
 GCOV = @GCOV@
 GENHTML = @GENHTML@
-GREP = @GREP@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -2465,19 +2463,19 @@
 	linux/powerpc64le/set_scno.c	\
 	linux/powerpc64le/syscallent.h	\
 	linux/powerpc64le/userent.h	\
-	linux/riscv64/arch_defs_.h		\
-	linux/riscv64/arch_prstatus_regset.c \
-	linux/riscv64/arch_prstatus_regset.h \
-	linux/riscv64/arch_regs.c		\
-	linux/riscv64/get_error.c		\
-	linux/riscv64/get_scno.c		\
-	linux/riscv64/get_syscall_args.c	\
-	linux/riscv64/ioctls_arch0.h	\
-	linux/riscv64/ioctls_inc0.h	\
-	linux/riscv64/raw_syscall.h	\
-	linux/riscv64/set_error.c		\
-	linux/riscv64/set_scno.c		\
-	linux/riscv64/syscallent.h	\
+	linux/riscv/arch_defs_.h		\
+	linux/riscv/arch_prstatus_regset.c \
+	linux/riscv/arch_prstatus_regset.h \
+	linux/riscv/arch_regs.c		\
+	linux/riscv/get_error.c		\
+	linux/riscv/get_scno.c		\
+	linux/riscv/get_syscall_args.c	\
+	linux/riscv/ioctls_arch0.h	\
+	linux/riscv/ioctls_inc0.h	\
+	linux/riscv/raw_syscall.h	\
+	linux/riscv/set_error.c		\
+	linux/riscv/set_scno.c		\
+	linux/riscv/syscallent.h	\
 	linux/s390/arch_defs_.h		\
 	linux/s390/arch_prstatus_regset.c \
 	linux/s390/arch_prstatus_regset.h \
--- strace-6.8/Makefile.in.vanilla	2024-03-22 22:25:11.615616194 +0100
+++ strace-6.8/Makefile.in	2024-03-22 22:25:14.888616029 +0100
@@ -228,9 +228,9 @@
 	$(top_srcdir)/build-aux/missing \
 	$(top_srcdir)/debian/changelog.in \
 	$(top_srcdir)/doc/strace-log-merge.1.in \
-	$(top_srcdir)/doc/strace.1.in AUTHORS COPYING INSTALL NEWS \
-	README build-aux/ar-lib build-aux/compile \
-	build-aux/config.guess build-aux/config.sub \
+	$(top_srcdir)/doc/strace.1.in AUTHORS COPYING ChangeLog \
+	INSTALL NEWS README build-aux/ar-lib build-aux/compile \
+	build-aux/config.guess build-aux/config.sub build-aux/depcomp \
 	build-aux/install-sh build-aux/missing
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
@@ -319,7 +319,6 @@
 ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
-EGREP = @EGREP@
 ENABLE_VALGRIND_drd = @ENABLE_VALGRIND_drd@
 ENABLE_VALGRIND_helgrind = @ENABLE_VALGRIND_helgrind@
 ENABLE_VALGRIND_memcheck = @ENABLE_VALGRIND_memcheck@
@@ -328,7 +327,6 @@
 EXEEXT = @EXEEXT@
 GCOV = @GCOV@
 GENHTML = @GENHTML@
-GREP = @GREP@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
--- strace-6.8/configure.vanilla	2024-03-22 22:25:11.625616194 +0100
+++ strace-6.8/configure	2024-03-22 22:25:14.493616049 +0100
@@ -1,11 +1,11 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for strace 6.8.
+# Generated by GNU Autoconf 2.72 for strace 6.8.
 #
 # Report bugs to <strace-devel@lists.strace.io>.
 #
 #
-# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation,
 # Inc.
 #
 #
@@ -19,7 +19,6 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
@@ -28,12 +27,13 @@
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -105,7 +105,7 @@
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
@@ -135,15 +135,14 @@
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
+# out after a failed 'exec'.
 printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="as_nop=:
-if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+  as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
@@ -151,12 +150,13 @@
   # is contrary to our usage.  Disable this feature.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else \$as_nop
-  case \`(set -o) 2>/dev/null\` in #(
+else case e in #(
+  e) case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 "
@@ -174,8 +174,9 @@
 if ( set x; as_fn_ret_success y && test x = \"\$1\" )
 then :
 
-else \$as_nop
-  exitcode=1; echo positional parameters were not saved.
+else case e in #(
+  e) exitcode=1; echo positional parameters were not saved. ;;
+esac
 fi
 test x\$exitcode = x0 || exit 1
 blah=\$(echo \$(echo blah))
@@ -189,14 +190,15 @@
   if (eval "$as_required") 2>/dev/null
 then :
   as_have_required=yes
-else $as_nop
-  as_have_required=no
+else case e in #(
+  e) as_have_required=no ;;
+esac
 fi
   if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
 then :
 
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
@@ -229,12 +231,13 @@
 if $as_found
 then :
 
-else $as_nop
-  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+else case e in #(
+  e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
 	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
 then :
   CONFIG_SHELL=$SHELL as_have_required=yes
-fi
+fi ;;
+esac
 fi
 
 
@@ -256,7 +259,7 @@
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
+# out after a failed 'exec'.
 printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
@@ -276,7 +279,8 @@
 $0: the script under such a shell if you do have one."
   fi
   exit 1
-fi
+fi ;;
+esac
 fi
 fi
 SHELL=${CONFIG_SHELL-/bin/sh}
@@ -315,14 +319,6 @@
   as_fn_set_status $1
   exit $1
 } # as_fn_exit
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_mkdir_p
 # -------------
@@ -391,11 +387,12 @@
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -409,21 +406,14 @@
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -497,6 +487,8 @@
     /[$]LINENO/=
   ' <$as_myself |
     sed '
+      t clear
+      :clear
       s/[$]LINENO.*/&-/
       t lineno
       b
@@ -545,7 +537,6 @@
 as_echo='printf %s\n'
 as_echo_n='printf %s'
 
-
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -557,9 +548,9 @@
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -584,10 +575,12 @@
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 test -n "$DJDIR" || exec 7<&0 </dev/null
@@ -721,8 +714,6 @@
 dl_LIBS
 SIZEOF_KERNEL_LONG_T
 SIZEOF_LONG
-EGREP
-GREP
 ac_ct_AR
 AR
 WARN_CFLAGS_FOR_BUILD
@@ -1008,7 +999,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1034,7 +1025,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1247,7 +1238,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1263,7 +1254,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1293,8 +1284,8 @@
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information"
+  -*) as_fn_error $? "unrecognized option: '$ac_option'
+Try '$0 --help' for more information"
     ;;
 
   *=*)
@@ -1302,7 +1293,7 @@
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error $? "invalid variable name: '$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
@@ -1352,7 +1343,7 @@
   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
-# There might be people who depend on the old broken behavior: `$host'
+# There might be people who depend on the old broken behavior: '$host'
 # used to hold the argument of --host etc.
 # FIXME: To remove some day.
 build=$build_alias
@@ -1420,7 +1411,7 @@
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
-ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
 ac_abs_confdir=`(
 	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 	pwd)`
@@ -1448,7 +1439,7 @@
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures strace 6.8 to adapt to many kinds of systems.
+'configure' configures strace 6.8 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1462,11 +1453,11 @@
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking ...' messages
+  -q, --quiet, --silent   do not print 'checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
-  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -C, --config-cache      alias for '--cache-file=config.cache'
   -n, --no-create         do not create output files
-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+      --srcdir=DIR        find the sources in DIR [configure dir or '..']
 
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -1474,10 +1465,10 @@
   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                           [PREFIX]
 
-By default, \`make install' will install all the files in
-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
-for instance \`--prefix=\$HOME'.
+By default, 'make install' will install all the files in
+'$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than '$ac_default_prefix' using '--prefix',
+for instance '--prefix=\$HOME'.
 
 For better control, use the options below.
 
@@ -1582,7 +1573,7 @@
               you have headers in a nonstandard directory <include dir>
   CPP         C preprocessor
 
-Use these variables to override the choices made by `configure' or to help
+Use these variables to override the choices made by 'configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to <strace-devel@lists.strace.io>.
@@ -1651,9 +1642,9 @@
 if $ac_init_version; then
   cat <<\_ACEOF
 strace configure 6.8
-generated by GNU Autoconf 2.71
+generated by GNU Autoconf 2.72
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 
@@ -1694,11 +1685,12 @@
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1732,11 +1724,12 @@
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-    ac_retval=1
+    ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1755,8 +1748,8 @@
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 #include <$2>
@@ -1764,10 +1757,12 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -1776,6 +1771,54 @@
 
 } # ac_fn_c_check_header_compile
 
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }
+then :
+  ac_retval=0
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1 ;;
+esac
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
 # ac_fn_c_try_run LINENO
 # ----------------------
 # Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
@@ -1806,12 +1849,13 @@
   test $ac_status = 0; }; }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: program exited with status $ac_status" >&5
        printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-       ac_retval=$ac_status
+       ac_retval=$ac_status ;;
+esac
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
@@ -1864,18 +1908,19 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_hi=$ac_mid; break
-else $as_nop
-  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
+else case e in #(
+  e) as_fn_arith $ac_mid + 1 && ac_lo=$as_val
 			if test $ac_lo -le $ac_mid; then
 			  ac_lo= ac_hi=
 			  break
 			fi
-			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
+			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   done
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
@@ -1910,20 +1955,23 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_lo=$ac_mid; break
-else $as_nop
-  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
+else case e in #(
+  e) as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
 			if test $ac_mid -le $ac_hi; then
 			  ac_lo= ac_hi=
 			  break
 			fi
-			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
+			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   done
-else $as_nop
-  ac_lo= ac_hi=
+else case e in #(
+  e) ac_lo= ac_hi= ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 # Binary search between lo and hi bounds.
@@ -1946,8 +1994,9 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_hi=$ac_mid
-else $as_nop
-  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
+else case e in #(
+  e) as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 done
@@ -1995,8 +2044,9 @@
 if ac_fn_c_try_run "$LINENO"
 then :
   echo >>conftest.val; read $3 <conftest.val; ac_retval=0
-else $as_nop
-  ac_retval=1
+else case e in #(
+  e) ac_retval=1 ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -2008,52 +2058,64 @@
 
 } # ac_fn_c_compute_int
 
-# ac_fn_c_try_link LINENO
-# -----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_link ()
+# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
+# -------------------------------------------
+# Tests whether TYPE exists after having included INCLUDES, setting cache
+# variable VAR accordingly.
+ac_fn_c_check_type ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
-  if { { ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 test -x conftest$ac_exeext
-       }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main (void)
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main (void)
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
 then :
-  ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+else case e in #(
+  e) eval "$3=yes" ;;
+esac
 fi
-  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
-  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
-  # interfere with the next link command; also delete a directory that is
-  # left behind by Apple's compiler.  We do this before executing the actions.
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+eval ac_res=\$$3
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
 
-} # ac_fn_c_try_link
+} # ac_fn_c_check_type
 
 # ac_fn_c_check_func LINENO FUNC VAR
 # ----------------------------------
@@ -2066,8 +2128,8 @@
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
@@ -2104,44 +2166,13 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  if test $ac_compiler_gnu = yes; then
-		     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#undef $2
-/* Declare this function with the same prototype as __builtin_$2.
-  This removes a warning about conflicting types for built-in function $2 */
-#ifdef  __cplusplus
-extern "C" {
-#endif
-__typeof__(__builtin_$2) $2;
-__typeof__(__builtin_$2) *volatile f = $2;
-#ifdef  __cplusplus
-}
-#endif
-
-int
-main (void)
-{
-return f != $2;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"
-then :
-  eval "$3=yes"
-else $as_nop
-  eval "$3=no"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
-		   else
-		     eval "$3=no"
-		   fi
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2150,63 +2181,6 @@
 
 } # ac_fn_c_check_func
 
-# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
-# -------------------------------------------
-# Tests whether TYPE exists after having included INCLUDES, setting cache
-# variable VAR accordingly.
-ac_fn_c_check_type ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-printf %s "checking for $2... " >&6; }
-if eval test \${$3+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main (void)
-{
-if (sizeof ($2))
-	 return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main (void)
-{
-if (sizeof (($2)))
-	    return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-
-else $as_nop
-  eval "$3=yes"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-eval ac_res=\$$3
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_type
-
 # ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
 # ----------------------------------------------------
 # Tries to find if the field MEMBER exists in type AGGR, after including
@@ -2219,8 +2193,8 @@
 if eval test \${$4+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $5
 int
@@ -2236,8 +2210,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$4=yes"
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $5
 int
@@ -2253,12 +2227,15 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$4=yes"
-else $as_nop
-  eval "$4=no"
+else case e in #(
+  e) eval "$4=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$4
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2280,8 +2257,8 @@
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+else case e in #(
+  e) as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
   eval ac_save_FLAGS=\$$6
   as_fn_append $6 " $5"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2305,12 +2282,14 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   eval $6=\$ac_save_FLAGS
-
+ ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2343,7 +2322,7 @@
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by strace $as_me 6.8, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
   $ $0$ac_configure_args_raw
 
@@ -2589,10 +2568,10 @@
 printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -2642,6 +2621,21 @@
   return s;
 }
 
+/* C89 style stringification. */
+#define noexpand_stringify(a) #a
+const char *stringified = noexpand_stringify(arbitrary+token=sequence);
+
+/* C89 style token pasting.  Exercises some of the corner cases that
+   e.g. old MSVC gets wrong, but not very hard. */
+#define noexpand_concat(a,b) a##b
+#define expand_concat(a,b) noexpand_concat(a,b)
+extern int vA;
+extern int vbee;
+#define aye A
+#define bee B
+int *pvA = &expand_concat(v,aye);
+int *pvbee = &noexpand_concat(v,bee);
+
 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
    function prototypes and stuff, but not \xHH hex character constants.
    These do not provoke an error unfortunately, instead are silently treated
@@ -2669,11 +2663,13 @@
 
 # Test code for whether the C compiler supports C99 (global declarations)
 ac_c_conftest_c99_globals='
-// Does the compiler advertise C99 conformance?
+/* Does the compiler advertise C99 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
 # error "Compiler does not advertise C99 conformance"
 #endif
 
+// See if C++-style comments work.
+
 #include <stdbool.h>
 extern int puts (const char *);
 extern int printf (const char *, ...);
@@ -2729,7 +2725,6 @@
 static inline int
 test_restrict (ccp restrict text)
 {
-  // See if C++-style comments work.
   // Iterate through items via the restricted pointer.
   // Also check for declarations in for loops.
   for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
@@ -2795,6 +2790,8 @@
   ia->datasize = 10;
   for (int i = 0; i < ia->datasize; ++i)
     ia->data[i] = i * 1.234;
+  // Work around memory leak warnings.
+  free (ia);
 
   // Check named initializers.
   struct named_init ni = {
@@ -2816,7 +2813,7 @@
 
 # Test code for whether the C compiler supports C11 (global declarations)
 ac_c_conftest_c11_globals='
-// Does the compiler advertise C11 conformance?
+/* Does the compiler advertise C11 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
 # error "Compiler does not advertise C11 conformance"
 #endif
@@ -3010,8 +3007,9 @@
 if $as_found
 then :
 
-else $as_nop
-  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5 ;;
+esac
 fi
 
 
@@ -3039,12 +3037,12 @@
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
@@ -3053,18 +3051,18 @@
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5
+printf "%s\n" "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
+printf "%s\n" "$as_me:   former value:  '$ac_old_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
+printf "%s\n" "$as_me:   current value: '$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
@@ -3080,11 +3078,11 @@
   fi
 done
 if $ac_cache_corrupted; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+  as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
 	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
@@ -3131,8 +3129,8 @@
 if test ${ac_cv_path_install+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
@@ -3186,7 +3184,8 @@
 IFS=$as_save_IFS
 
 rm -rf conftest.one conftest.two conftest.dir
-
+ ;;
+esac
 fi
   if test ${ac_cv_path_install+y}; then
     INSTALL=$ac_cv_path_install
@@ -3282,7 +3281,7 @@
 test "$program_suffix" != NONE &&
   program_transform_name="s&\$&$program_suffix&;$program_transform_name"
 # Double any \ or $.
-# By default was `s,x,x', remove it if useless.
+# By default was 's,x,x', remove it if useless.
 ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
 program_transform_name=`printf "%s\n" "$program_transform_name" | sed "$ac_script"`
 
@@ -3325,8 +3324,8 @@
 if test ${ac_cv_prog_STRIP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$STRIP"; then
+else case e in #(
+  e) if test -n "$STRIP"; then
   ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3348,7 +3347,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 STRIP=$ac_cv_prog_STRIP
 if test -n "$STRIP"; then
@@ -3370,8 +3370,8 @@
 if test ${ac_cv_prog_ac_ct_STRIP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_STRIP"; then
+else case e in #(
+  e) if test -n "$ac_ct_STRIP"; then
   ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3393,7 +3393,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
 if test -n "$ac_ct_STRIP"; then
@@ -3429,8 +3430,8 @@
   if test ${ac_cv_path_mkdir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
 do
   IFS=$as_save_IFS
@@ -3444,7 +3445,7 @@
 	   as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext" || continue
 	   case `"$as_dir$ac_prog$ac_exec_ext" --version 2>&1` in #(
 	     'mkdir ('*'coreutils) '* | \
-	     'BusyBox '* | \
+	     *'BusyBox '* | \
 	     'mkdir (fileutils) '4.1*)
 	       ac_cv_path_mkdir=$as_dir$ac_prog$ac_exec_ext
 	       break 3;;
@@ -3453,18 +3454,17 @@
        done
   done
 IFS=$as_save_IFS
-
+ ;;
+esac
 fi
 
   test -d ./--version && rmdir ./--version
   if test ${ac_cv_path_mkdir+y}; then
     MKDIR_P="$ac_cv_path_mkdir -p"
   else
-    # As a last resort, use the slow shell script.  Don't cache a
-    # value for MKDIR_P within a source directory, because that will
-    # break other packages using the cache if that directory is
-    # removed, or if the value is a relative name.
-    MKDIR_P="$ac_install_sh -d"
+    # As a last resort, use plain mkdir -p,
+    # in the hope it doesn't have the bugs of ancient mkdir.
+    MKDIR_P='mkdir -p'
   fi
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
@@ -3479,8 +3479,8 @@
 if test ${ac_cv_prog_AWK+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AWK"; then
+else case e in #(
+  e) if test -n "$AWK"; then
   ac_cv_prog_AWK="$AWK" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3502,7 +3502,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AWK=$ac_cv_prog_AWK
 if test -n "$AWK"; then
@@ -3524,8 +3525,8 @@
 if eval test \${ac_cv_prog_make_${ac_make}_set+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat >conftest.make <<\_ACEOF
+else case e in #(
+  e) cat >conftest.make <<\_ACEOF
 SHELL = /bin/sh
 all:
 	@echo '@@@%%%=$(MAKE)=@@@%%%'
@@ -3537,7 +3538,8 @@
   *)
     eval ac_cv_prog_make_${ac_make}_set=no;;
 esac
-rm -f conftest.make
+rm -f conftest.make ;;
+esac
 fi
 if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
@@ -3575,8 +3577,8 @@
 if test ${am_cv_make_support_nested_variables+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if printf "%s\n" 'TRUE=$(BAR$(V))
+else case e in #(
+  e) if printf "%s\n" 'TRUE=$(BAR$(V))
 BAR0=false
 BAR1=true
 V=1
@@ -3586,7 +3588,8 @@
   am_cv_make_support_nested_variables=yes
 else
   am_cv_make_support_nested_variables=no
-fi
+fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
 printf "%s\n" "$am_cv_make_support_nested_variables" >&6; }
@@ -3731,8 +3734,9 @@
 if test ${enable_maintainer_mode+y}
 then :
   enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
-else $as_nop
-  USE_MAINTAINER_MODE=no
+else case e in #(
+  e) USE_MAINTAINER_MODE=no ;;
+esac
 fi
 
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5
@@ -3759,15 +3763,16 @@
 if test ${ac_cv_build+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_build_alias=$build_alias
+else case e in #(
+  e) ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
 test "x$ac_build_alias" = x &&
   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
   as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 printf "%s\n" "$ac_cv_build" >&6; }
@@ -3794,14 +3799,15 @@
 if test ${ac_cv_host+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$host_alias" = x; then
+else case e in #(
+  e) if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
     as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
 printf "%s\n" "$ac_cv_host" >&6; }
@@ -3851,8 +3857,8 @@
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3874,7 +3880,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -3896,8 +3903,8 @@
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3919,7 +3926,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -3954,8 +3962,8 @@
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3977,7 +3985,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -3999,8 +4008,8 @@
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -4039,7 +4048,8 @@
     ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4063,8 +4073,8 @@
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4086,7 +4096,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4112,8 +4123,8 @@
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4135,7 +4146,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -4173,8 +4185,8 @@
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4196,7 +4208,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4218,8 +4231,8 @@
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4241,7 +4254,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -4270,10 +4284,10 @@
 fi
 
 
-test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
 printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -4345,8 +4359,8 @@
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
-# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+  # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
+# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
 # so that the user can short-circuit this test for compilers unknown to
 # Autoconf.
@@ -4366,7 +4380,7 @@
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
 	# We set ac_cv_exeext here because the later test for it is not
-	# safe: cross compilers may not add the suffix if given an `-o'
+	# safe: cross compilers may not add the suffix if given an '-o'
 	# argument, so we may need to know it at that point already.
 	# Even if this section looks crufty: it has the advantage of
 	# actually working.
@@ -4377,8 +4391,9 @@
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else $as_nop
-  ac_file=''
+else case e in #(
+  e) ac_file='' ;;
+esac
 fi
 if test -z "$ac_file"
 then :
@@ -4387,13 +4402,14 @@
 printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; } ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
 printf %s "checking for C compiler default output file name... " >&6; }
@@ -4417,10 +4433,10 @@
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # If both `conftest.exe' and `conftest' are `present' (well, observable)
-# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
-# work properly (i.e., refer to `conftest.exe'), while it won't with
-# `rm'.
+  # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
+# catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
+# work properly (i.e., refer to 'conftest.exe'), while it won't with
+# 'rm'.
 for ac_file in conftest.exe conftest conftest.*; do
   test -f "$ac_file" || continue
   case $ac_file in
@@ -4430,11 +4446,12 @@
     * ) break;;
   esac
 done
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 rm -f conftest conftest$ac_cv_exeext
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
@@ -4491,26 +4508,27 @@
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5; }
+If you meant to cross compile, use '--host'.
+See 'config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
 printf "%s\n" "$cross_compiling" >&6; }
 
-rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+rm -f conftest.$ac_ext conftest$ac_cv_exeext \
+  conftest.o conftest.obj conftest.out
 ac_clean_files=$ac_clean_files_save
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 printf %s "checking for suffix of object files... " >&6; }
 if test ${ac_cv_objext+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4542,16 +4560,18 @@
        break;;
   esac
 done
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
+rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
 printf "%s\n" "$ac_cv_objext" >&6; }
@@ -4562,8 +4582,8 @@
 if test ${ac_cv_c_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4580,12 +4600,14 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
@@ -4603,8 +4625,8 @@
 if test ${ac_cv_prog_cc_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_c_werror_flag=$ac_c_werror_flag
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
@@ -4622,8 +4644,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
-else $as_nop
-  CFLAGS=""
+else case e in #(
+  e) CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -4638,8 +4660,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4656,12 +4678,15 @@
 then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
@@ -4688,8 +4713,8 @@
 if test ${ac_cv_prog_cc_c11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c11=no
+else case e in #(
+  e) ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4706,25 +4731,28 @@
   test "x$ac_cv_prog_cc_c11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c11" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c11" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c11" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
 printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
-     CC="$CC $ac_cv_prog_cc_c11"
+     CC="$CC $ac_cv_prog_cc_c11" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
-  ac_prog_cc_stdc=c11
+  ac_prog_cc_stdc=c11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -4734,8 +4762,8 @@
 if test ${ac_cv_prog_cc_c99+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c99=no
+else case e in #(
+  e) ac_cv_prog_cc_c99=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4752,25 +4780,28 @@
   test "x$ac_cv_prog_cc_c99" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c99" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c99" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c99" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
 printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
-     CC="$CC $ac_cv_prog_cc_c99"
+     CC="$CC $ac_cv_prog_cc_c99" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
-  ac_prog_cc_stdc=c99
+  ac_prog_cc_stdc=c99 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -4780,8 +4811,8 @@
 if test ${ac_cv_prog_cc_c89+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c89=no
+else case e in #(
+  e) ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4798,25 +4829,28 @@
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c89" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c89" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c89" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
-     CC="$CC $ac_cv_prog_cc_c89"
+     CC="$CC $ac_cv_prog_cc_c89" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
-  ac_prog_cc_stdc=c89
+  ac_prog_cc_stdc=c89 ;;
+esac
 fi
 fi
 
@@ -4837,8 +4871,8 @@
 if test ${am_cv_prog_cc_c_o+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4868,7 +4902,8 @@
     fi
   done
   rm -f core conftest*
-  unset am_i
+  unset am_i ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
 printf "%s\n" "$am_cv_prog_cc_c_o" >&6; }
@@ -4958,8 +4993,8 @@
 if test ${am_cv_CC_dependencies_compiler_type+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+else case e in #(
+  e) if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
   # We make a subdir and do the tests there.  Otherwise we can end up
   # making bogus files that we don't know about and never remove.  For
   # instance it was reported that on HP-UX the gcc test will end up
@@ -5063,7 +5098,8 @@
 else
   am_cv_CC_dependencies_compiler_type=none
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
 printf "%s\n" "$am_cv_CC_dependencies_compiler_type" >&6; }
@@ -5095,8 +5131,8 @@
   if test ${ac_cv_prog_CPP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-      # Double quotes because $CC needs to be expanded
+else case e in #(
+  e)     # Double quotes because $CC needs to be expanded
     for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
     do
       ac_preproc_ok=false
@@ -5114,9 +5150,10 @@
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -5130,15 +5167,16 @@
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
@@ -5147,7 +5185,8 @@
 
     done
     ac_cv_prog_CPP=$CPP
-
+   ;;
+esac
 fi
   CPP=$ac_cv_prog_CPP
 else
@@ -5170,9 +5209,10 @@
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -5186,24 +5226,26 @@
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
 
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 
 ac_ext=c
@@ -5221,8 +5263,8 @@
 if test ${ac_cv_prog_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$RANLIB"; then
+else case e in #(
+  e) if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5244,7 +5286,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
@@ -5266,8 +5309,8 @@
 if test ${ac_cv_prog_ac_ct_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_RANLIB"; then
+else case e in #(
+  e) if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5289,7 +5332,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
@@ -5368,8 +5412,8 @@
 if test ${ac_cv_safe_to_define___extensions__+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #         define __EXTENSIONS__ 1
@@ -5385,10 +5429,12 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_safe_to_define___extensions__=yes
-else $as_nop
-  ac_cv_safe_to_define___extensions__=no
+else case e in #(
+  e) ac_cv_safe_to_define___extensions__=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
 printf "%s\n" "$ac_cv_safe_to_define___extensions__" >&6; }
@@ -5398,8 +5444,8 @@
 if test ${ac_cv_should_define__xopen_source+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_should_define__xopen_source=no
+else case e in #(
+  e) ac_cv_should_define__xopen_source=no
     if test $ac_cv_header_wchar_h = yes
 then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5418,8 +5464,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
             #define _XOPEN_SOURCE 500
@@ -5437,10 +5483,12 @@
 then :
   ac_cv_should_define__xopen_source=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
+fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_should_define__xopen_source" >&5
 printf "%s\n" "$ac_cv_should_define__xopen_source" >&6; }
@@ -5465,6 +5513,8 @@
 
   printf "%s\n" "#define __STDC_WANT_IEC_60559_DFP_EXT__ 1" >>confdefs.h
 
+  printf "%s\n" "#define __STDC_WANT_IEC_60559_EXT__ 1" >>confdefs.h
+
   printf "%s\n" "#define __STDC_WANT_IEC_60559_FUNCS_EXT__ 1" >>confdefs.h
 
   printf "%s\n" "#define __STDC_WANT_IEC_60559_TYPES_EXT__ 1" >>confdefs.h
@@ -5484,8 +5534,9 @@
 
     printf "%s\n" "#define _POSIX_1_SOURCE 2" >>confdefs.h
 
-else $as_nop
-  MINIX=
+else case e in #(
+  e) MINIX= ;;
+esac
 fi
   if test $ac_cv_safe_to_define___extensions__ = yes
 then :
@@ -5503,8 +5554,8 @@
 if test ${ac_cv_path_SED+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+else case e in #(
+  e)           ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
      for ac_i in 1 2 3 4 5 6 7; do
        ac_script="$ac_script$as_nl$ac_script"
      done
@@ -5529,9 +5580,10 @@
       as_fn_executable_p "$ac_path_SED" || continue
 # Check for GNU ac_path_SED and select it if it is found.
   # Check for GNU $ac_path_SED
-case `"$ac_path_SED" --version 2>&1` in
+case `"$ac_path_SED" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -5566,7 +5618,8 @@
 else
   ac_cv_path_SED=$SED
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
 printf "%s\n" "$ac_cv_path_SED" >&6; }
@@ -5582,8 +5635,9 @@
 if test ${with_gcov+y}
 then :
   withval=$with_gcov; _AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov
-else $as_nop
-  _AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov
+else case e in #(
+  e) _AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov ;;
+esac
 fi
 
 
@@ -5593,8 +5647,9 @@
 if test ${enable_code_coverage+y}
 then :
   enableval=$enable_code_coverage;
-else $as_nop
-  enable_code_coverage=no
+else case e in #(
+  e) enable_code_coverage=no ;;
+esac
 fi
 
 
@@ -5623,8 +5678,8 @@
 if test ${ac_cv_prog_GCOV+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$GCOV"; then
+else case e in #(
+  e) if test -n "$GCOV"; then
   ac_cv_prog_GCOV="$GCOV" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5646,7 +5701,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 GCOV=$ac_cv_prog_GCOV
 if test -n "$GCOV"; then
@@ -5668,8 +5724,8 @@
 if test ${ac_cv_prog_ac_ct_GCOV+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_GCOV"; then
+else case e in #(
+  e) if test -n "$ac_ct_GCOV"; then
   ac_cv_prog_ac_ct_GCOV="$ac_ct_GCOV" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5691,7 +5747,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_GCOV=$ac_cv_prog_ac_ct_GCOV
 if test -n "$ac_ct_GCOV"; then
@@ -5737,8 +5794,8 @@
 if test ${ac_cv_prog_LCOV+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$LCOV"; then
+else case e in #(
+  e) if test -n "$LCOV"; then
   ac_cv_prog_LCOV="$LCOV" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5760,7 +5817,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 LCOV=$ac_cv_prog_LCOV
 if test -n "$LCOV"; then
@@ -5779,8 +5837,8 @@
 if test ${ac_cv_prog_GENHTML+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$GENHTML"; then
+else case e in #(
+  e) if test -n "$GENHTML"; then
   ac_cv_prog_GENHTML="$GENHTML" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5802,7 +5860,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 GENHTML=$ac_cv_prog_GENHTML
 if test -n "$GENHTML"; then
@@ -5861,14 +5920,15 @@
 	-find . \( -name "*.gcda" -o -name "*.gcno" -o -name "*.gcov" \) -delete
 '
 
-else $as_nop
-
+else case e in #(
+  e)
 		CODE_COVERAGE_RULES_CHECK='
 	@echo "Need to reconfigure with --enable-code-coverage"
 '
 		CODE_COVERAGE_RULES_CAPTURE="$CODE_COVERAGE_RULES_CHECK"
 		CODE_COVERAGE_RULES_CLEAN=''
-
+	 ;;
+esac
 fi
 
 CODE_COVERAGE_RULES='
@@ -5993,8 +6053,8 @@
 if test ${ac_cv_c_bigendian+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_c_bigendian=unknown
+else case e in #(
+  e) ac_cv_c_bigendian=unknown
     # See if we're dealing with a universal compiler.
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -6040,8 +6100,8 @@
 int
 main (void)
 {
-#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
-		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
+#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \\
+		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \\
 		     && LITTLE_ENDIAN)
 	      bogus endian macros
 	     #endif
@@ -6072,8 +6132,9 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_bigendian=yes
-else $as_nop
-  ac_cv_c_bigendian=no
+else case e in #(
+  e) ac_cv_c_bigendian=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
@@ -6117,8 +6178,9 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_bigendian=yes
-else $as_nop
-  ac_cv_c_bigendian=no
+else case e in #(
+  e) ac_cv_c_bigendian=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
@@ -6145,22 +6207,23 @@
 		int use_ebcdic (int i) {
 		  return ebcdic_mm[i] + ebcdic_ii[i];
 		}
-		extern int foo;
-
-int
-main (void)
-{
-return use_ascii (foo) == use_ebcdic (foo);
-  ;
-  return 0;
-}
+		int
+		main (int argc, char **argv)
+		{
+		  /* Intimidate the compiler so that it does not
+		     optimize the arrays away.  */
+		  char *p = argv[0];
+		  ascii_mm[1] = *p++; ebcdic_mm[1] = *p++;
+		  ascii_ii[1] = *p++; ebcdic_ii[1] = *p++;
+		  return use_ascii (argc) == use_ebcdic (*p);
+		}
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"
+if ac_fn_c_try_link "$LINENO"
 then :
-  if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
+  if grep BIGenDianSyS conftest$ac_exeext >/dev/null; then
 	      ac_cv_c_bigendian=yes
 	    fi
-	    if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
+	    if grep LiTTleEnDian conftest$ac_exeext >/dev/null ; then
 	      if test "$ac_cv_c_bigendian" = unknown; then
 		ac_cv_c_bigendian=no
 	      else
@@ -6169,9 +6232,10 @@
 	      fi
 	    fi
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -6194,14 +6258,17 @@
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_c_bigendian=no
-else $as_nop
-  ac_cv_c_bigendian=yes
+else case e in #(
+  e) ac_cv_c_bigendian=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
-    fi
+    fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
 printf "%s\n" "$ac_cv_c_bigendian" >&6; }
@@ -6367,8 +6434,9 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   arch=powerpc64
-else $as_nop
-  arch=powerpc
+else case e in #(
+  e) arch=powerpc ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	if test "$arch" = "powerpc64"; then
@@ -6389,9 +6457,14 @@
 		esac
 	fi
 	;;
+riscv32*)
+	arch=riscv
+
+printf "%s\n" "#define RISCV32 1" >>confdefs.h
+
+	;;
 riscv64*)
-	arch=riscv64
-	karch=riscv
+	arch=riscv
 
 printf "%s\n" "#define RISCV64 1" >>confdefs.h
 
@@ -6464,8 +6537,9 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   arch=x32
-else $as_nop
-  arch=x86_64
+else case e in #(
+  e) arch=x86_64 ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	if test "$arch" = "x86_64"; then
@@ -6528,9 +6602,10 @@
 		   " "$LINENO" 5
 		;;
 	 esac
-else $as_nop
-  enable_bundled=check
-
+else case e in #(
+  e) enable_bundled=check
+ ;;
+esac
 fi
 
 
@@ -6539,8 +6614,8 @@
 if test ${st_cv_use_bundled_headers+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test $enable_bundled = check
+else case e in #(
+  e) if test $enable_bundled = check
 then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -6559,18 +6634,21 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_use_bundled_headers=no
-else $as_nop
-  st_cv_use_bundled_headers=yes
-
+else case e in #(
+  e) st_cv_use_bundled_headers=yes
+		 ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-else $as_nop
-  st_cv_use_bundled_headers=$enable_bundled
-
+else case e in #(
+  e) st_cv_use_bundled_headers=$enable_bundled
+	  ;;
+esac
 fi
 
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_use_bundled_headers" >&5
 printf "%s\n" "$st_cv_use_bundled_headers" >&6; }
@@ -6598,17 +6676,19 @@
 if test ${st_cv__MIPS_SIM+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "_MIPS_SIM" "st_cv__MIPS_SIM"        ""
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "_MIPS_SIM" "st_cv__MIPS_SIM"        ""
 then :
 
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "_MIPS_SIM cannot be determined
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv__MIPS_SIM" >&5
 printf "%s\n" "$st_cv__MIPS_SIM" >&6; }
@@ -6619,8 +6699,8 @@
 if test ${st_cv_mips_abi+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -6634,8 +6714,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_mips_abi=o32
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -6649,8 +6729,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_mips_abi=n32
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -6664,14 +6744,18 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_mips_abi=n64
-else $as_nop
-  st_cv_mips_abi=unknown
+else case e in #(
+  e) st_cv_mips_abi=unknown ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_mips_abi" >&5
 printf "%s\n" "$st_cv_mips_abi" >&6; }
@@ -6696,8 +6780,9 @@
 if test ${enable_arm_oabi+y}
 then :
   enableval=$enable_arm_oabi;
-else $as_nop
-  enable_arm_oabi=no
+else case e in #(
+  e) enable_arm_oabi=no ;;
+esac
 fi
 
 case "$enable_arm_oabi" in
@@ -6714,8 +6799,8 @@
 if test ${st_cv_cc_enable_Werror+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #if defined __GNUC__ && defined __GNUC_MINOR__
@@ -6741,10 +6826,12 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_cc_enable_Werror=yes
-else $as_nop
-  st_cv_cc_enable_Werror=no
+else case e in #(
+  e) st_cv_cc_enable_Werror=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_cc_enable_Werror" >&5
 printf "%s\n" "$st_cv_cc_enable_Werror" >&6; }
@@ -6753,14 +6840,15 @@
 if test ${st_cv_enable_Werror+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$st_cv_cc_enable_Werror" != yes; then
+else case e in #(
+  e) if test "$st_cv_cc_enable_Werror" != yes; then
 		  st_cv_enable_Werror='no, the compiler is too old'
 		elif test "$arch_enable_Werror" != yes; then
 		  st_cv_enable_Werror='no, architecture is not ready'
 		else
 		  st_cv_enable_Werror=yes
-		fi
+		fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_enable_Werror" >&5
 printf "%s\n" "$st_cv_enable_Werror" >&6; }
@@ -6771,8 +6859,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6789,21 +6877,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -6814,8 +6905,8 @@
 if test ${gl_cv_warn_CFLAGS__Wall+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wall"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6832,13 +6923,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wall=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wall=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wall=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wall" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wall" >&6; }
@@ -6855,8 +6948,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6873,21 +6966,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -6898,8 +6994,8 @@
 if test ${gl_cv_warn_CFLAGS__Wextra+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wextra"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6916,13 +7012,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wextra=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wextra=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wextra=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wextra" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wextra" >&6; }
@@ -6939,8 +7037,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6957,21 +7055,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -6982,8 +7083,8 @@
 if test ${gl_cv_warn_CFLAGS__Wno_missing_field_initializers+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wmissing-field-initializers"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7000,13 +7101,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wno_missing_field_initializers=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wno_missing_field_initializers=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wno_missing_field_initializers=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wno_missing_field_initializers" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wno_missing_field_initializers" >&6; }
@@ -7023,8 +7126,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7041,21 +7144,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7066,8 +7172,8 @@
 if test ${gl_cv_warn_CFLAGS__Wno_unused_parameter+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wunused-parameter"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7084,13 +7190,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wno_unused_parameter=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wno_unused_parameter=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wno_unused_parameter=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wno_unused_parameter" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wno_unused_parameter" >&6; }
@@ -7108,8 +7216,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7126,21 +7234,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7151,8 +7262,8 @@
 if test ${gl_cv_warn_CFLAGS__Wdate_time+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wdate-time"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7169,13 +7280,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wdate_time=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wdate_time=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wdate_time=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wdate_time" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wdate_time" >&6; }
@@ -7192,8 +7305,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7210,21 +7323,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7235,8 +7351,8 @@
 if test ${gl_cv_warn_CFLAGS__Wformat_security+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wformat-security"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7253,13 +7369,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wformat_security=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wformat_security=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wformat_security=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wformat_security" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wformat_security" >&6; }
@@ -7276,8 +7394,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7294,21 +7412,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7319,8 +7440,8 @@
 if test ${gl_cv_warn_CFLAGS__Wimplicit_fallthrough_5+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wimplicit-fallthrough=5"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7337,13 +7458,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wimplicit_fallthrough_5=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wimplicit_fallthrough_5=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wimplicit_fallthrough_5=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wimplicit_fallthrough_5" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wimplicit_fallthrough_5" >&6; }
@@ -7360,8 +7483,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7378,21 +7501,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7403,8 +7529,8 @@
 if test ${gl_cv_warn_CFLAGS__Winit_self+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Winit-self"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7421,13 +7547,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Winit_self=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Winit_self=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Winit_self=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Winit_self" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Winit_self" >&6; }
@@ -7444,8 +7572,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7462,21 +7590,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7487,8 +7618,8 @@
 if test ${gl_cv_warn_CFLAGS__Winitializer_overrides+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Winitializer-overrides"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7505,13 +7636,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Winitializer_overrides=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Winitializer_overrides=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Winitializer_overrides=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Winitializer_overrides" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Winitializer_overrides" >&6; }
@@ -7528,8 +7661,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7546,21 +7679,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7571,8 +7707,8 @@
 if test ${gl_cv_warn_CFLAGS__Wlogical_op+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wlogical-op"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7589,13 +7725,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wlogical_op=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wlogical_op=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wlogical_op=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wlogical_op" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wlogical_op" >&6; }
@@ -7612,8 +7750,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7630,21 +7768,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7655,8 +7796,8 @@
 if test ${gl_cv_warn_CFLAGS__Wmissing_prototypes+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wmissing-prototypes"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7673,13 +7814,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wmissing_prototypes=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wmissing_prototypes=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wmissing_prototypes=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wmissing_prototypes" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wmissing_prototypes" >&6; }
@@ -7696,8 +7839,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7714,21 +7857,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7739,8 +7885,8 @@
 if test ${gl_cv_warn_CFLAGS__Wnested_externs+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wnested-externs"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7757,13 +7903,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wnested_externs=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wnested_externs=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wnested_externs=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wnested_externs" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wnested_externs" >&6; }
@@ -7780,8 +7928,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7798,21 +7946,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7823,8 +7974,8 @@
 if test ${gl_cv_warn_CFLAGS__Wold_style_definition+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wold-style-definition"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7841,13 +7992,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wold_style_definition=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wold_style_definition=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wold_style_definition=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wold_style_definition" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wold_style_definition" >&6; }
@@ -7864,8 +8017,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7882,21 +8035,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7907,8 +8063,8 @@
 if test ${gl_cv_warn_CFLAGS__Wtrampolines+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wtrampolines"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7925,13 +8081,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wtrampolines=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wtrampolines=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wtrampolines=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wtrampolines" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wtrampolines" >&6; }
@@ -7948,8 +8106,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7966,21 +8124,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -7991,8 +8152,8 @@
 if test ${gl_cv_warn_CFLAGS__Wundef+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wundef"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -8009,13 +8170,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wundef=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wundef=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wundef=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wundef" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wundef" >&6; }
@@ -8032,8 +8195,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -8050,21 +8213,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -8075,8 +8241,8 @@
 if test ${gl_cv_warn_CFLAGS__Wwrite_strings+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Wwrite-strings"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -8093,13 +8259,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Wwrite_strings=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Wwrite_strings=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Wwrite_strings=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Wwrite_strings" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Wwrite_strings" >&6; }
@@ -8116,8 +8284,9 @@
 		yes|no|no,*) ;;
 		*) as_fn_error $? "bad value $enable_gcc_Werror for gcc-Werror option" "$LINENO" 5 ;;
 	       esac
-else $as_nop
-  enable_gcc_Werror="$st_cv_enable_Werror"
+else case e in #(
+  e) enable_gcc_Werror="$st_cv_enable_Werror" ;;
+esac
 fi
 
 if test "$enable_gcc_Werror" = yes; then
@@ -8128,8 +8297,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -8146,21 +8315,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS__Werror__Wunknown_warning_option" = xyes
 then :
   gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -8171,8 +8343,8 @@
 if test ${gl_cv_warn_CFLAGS__Werror+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -Werror"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -8189,13 +8361,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__Werror=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__Werror=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__Werror=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__Werror" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__Werror" >&6; }
@@ -8213,8 +8387,8 @@
 if test ${gl_cv_warn_CFLAGS__gdwarf_aranges+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS"
   as_fn_append CFLAGS " $gl_unknown_warnings_are_errors -gdwarf-aranges"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -8231,21 +8405,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS__gdwarf_aranges=yes
-else $as_nop
-  gl_cv_warn_CFLAGS__gdwarf_aranges=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS__gdwarf_aranges=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS__gdwarf_aranges" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS__gdwarf_aranges" >&6; }
 if test "x$gl_cv_warn_CFLAGS__gdwarf_aranges" = xyes
 then :
   accept_dwarf_aranges_option=yes
-else $as_nop
-  accept_dwarf_aranges_option=no
+else case e in #(
+  e) accept_dwarf_aranges_option=no ;;
+esac
 fi
 
  if test ${accept_dwarf_aranges_option} = yes; then
@@ -8332,8 +8509,8 @@
 if test ${ac_cv_prog_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$CC_FOR_BUILD"; then
   ac_cv_prog_CC_FOR_BUILD="$CC_FOR_BUILD" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8355,7 +8532,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC_FOR_BUILD=$ac_cv_prog_CC_FOR_BUILD
 if test -n "$CC_FOR_BUILD"; then
@@ -8377,8 +8555,8 @@
 if test ${ac_cv_prog_ac_ct_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC_FOR_BUILD"; then
   ac_cv_prog_ac_ct_CC_FOR_BUILD="$ac_ct_CC_FOR_BUILD" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8400,7 +8578,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC_FOR_BUILD=$ac_cv_prog_ac_ct_CC_FOR_BUILD
 if test -n "$ac_ct_CC_FOR_BUILD"; then
@@ -8435,8 +8614,8 @@
 if test ${ac_cv_prog_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$CC_FOR_BUILD"; then
   ac_cv_prog_CC_FOR_BUILD="$CC_FOR_BUILD" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8458,7 +8637,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC_FOR_BUILD=$ac_cv_prog_CC_FOR_BUILD
 if test -n "$CC_FOR_BUILD"; then
@@ -8480,8 +8660,8 @@
 if test ${ac_cv_prog_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$CC_FOR_BUILD"; then
   ac_cv_prog_CC_FOR_BUILD="$CC_FOR_BUILD" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -8520,7 +8700,8 @@
     ac_cv_prog_CC_FOR_BUILD="$as_dir$ac_word${1+' '}$@"
   fi
 fi
-fi
+fi ;;
+esac
 fi
 CC_FOR_BUILD=$ac_cv_prog_CC_FOR_BUILD
 if test -n "$CC_FOR_BUILD"; then
@@ -8544,8 +8725,8 @@
 if test ${ac_cv_prog_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$CC_FOR_BUILD"; then
   ac_cv_prog_CC_FOR_BUILD="$CC_FOR_BUILD" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8567,7 +8748,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC_FOR_BUILD=$ac_cv_prog_CC_FOR_BUILD
 if test -n "$CC_FOR_BUILD"; then
@@ -8593,8 +8775,8 @@
 if test ${ac_cv_prog_ac_ct_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC_FOR_BUILD"; then
   ac_cv_prog_ac_ct_CC_FOR_BUILD="$ac_ct_CC_FOR_BUILD" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8616,7 +8798,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC_FOR_BUILD=$ac_cv_prog_ac_ct_CC_FOR_BUILD
 if test -n "$ac_ct_CC_FOR_BUILD"; then
@@ -8654,8 +8837,8 @@
 if test ${ac_cv_prog_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$CC_FOR_BUILD"; then
   ac_cv_prog_CC_FOR_BUILD="$CC_FOR_BUILD" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8677,7 +8860,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC_FOR_BUILD=$ac_cv_prog_CC_FOR_BUILD
 if test -n "$CC_FOR_BUILD"; then
@@ -8699,8 +8883,8 @@
 if test ${ac_cv_prog_ac_ct_CC_FOR_BUILD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC_FOR_BUILD"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC_FOR_BUILD"; then
   ac_cv_prog_ac_ct_CC_FOR_BUILD="$ac_ct_CC_FOR_BUILD" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8722,7 +8906,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC_FOR_BUILD=$ac_cv_prog_ac_ct_CC_FOR_BUILD
 if test -n "$ac_ct_CC_FOR_BUILD"; then
@@ -8751,10 +8936,10 @@
 fi
 
 
-test -z "$CC_FOR_BUILD" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC_FOR_BUILD" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
 printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -8786,8 +8971,8 @@
 if test ${ac_cv_c_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -8804,12 +8989,14 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
@@ -8827,8 +9014,8 @@
 if test ${ac_cv_build_prog_cc_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_c_werror_flag=$ac_c_werror_flag
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_build_prog_cc_g=no
    CFLAGS_FOR_BUILD="-g"
@@ -8846,8 +9033,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_build_prog_cc_g=yes
-else $as_nop
-  CFLAGS_FOR_BUILD=""
+else case e in #(
+  e) CFLAGS_FOR_BUILD=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -8862,8 +9049,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS_FOR_BUILD="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8880,12 +9067,15 @@
 then :
   ac_cv_build_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_prog_cc_g" >&5
 printf "%s\n" "$ac_cv_build_prog_cc_g" >&6; }
@@ -8912,8 +9102,8 @@
 if test ${ac_cv_build_prog_cc_c11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_build_prog_cc_c11=no
+else case e in #(
+  e) ac_cv_build_prog_cc_c11=no
 ac_save_CC=$CC_FOR_BUILD
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8930,25 +9120,28 @@
   test "x$ac_cv_build_prog_cc_c11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC_FOR_BUILD=$ac_save_CC
+CC_FOR_BUILD=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_build_prog_cc_c11" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_build_prog_cc_c11" = x
+else case e in #(
+  e) if test "x$ac_cv_build_prog_cc_c11" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_prog_cc_c11" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_prog_cc_c11" >&5
 printf "%s\n" "$ac_cv_build_prog_cc_c11" >&6; }
-     CC_FOR_BUILD="$CC_FOR_BUILD $ac_cv_build_prog_cc_c11"
+     CC_FOR_BUILD="$CC_FOR_BUILD $ac_cv_build_prog_cc_c11" ;;
+esac
 fi
   ac_cv_build_prog_cc_stdc=$ac_cv_build_prog_cc_c11
-  ac_prog_cc_stdc=c11
+  ac_prog_cc_stdc=c11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -8958,8 +9151,8 @@
 if test ${ac_cv_build_prog_cc_c99+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_build_prog_cc_c99=no
+else case e in #(
+  e) ac_cv_build_prog_cc_c99=no
 ac_save_CC=$CC_FOR_BUILD
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8976,25 +9169,28 @@
   test "x$ac_cv_build_prog_cc_c99" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC_FOR_BUILD=$ac_save_CC
+CC_FOR_BUILD=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_build_prog_cc_c99" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_build_prog_cc_c99" = x
+else case e in #(
+  e) if test "x$ac_cv_build_prog_cc_c99" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_prog_cc_c99" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_prog_cc_c99" >&5
 printf "%s\n" "$ac_cv_build_prog_cc_c99" >&6; }
-     CC_FOR_BUILD="$CC_FOR_BUILD $ac_cv_build_prog_cc_c99"
+     CC_FOR_BUILD="$CC_FOR_BUILD $ac_cv_build_prog_cc_c99" ;;
+esac
 fi
   ac_cv_build_prog_cc_stdc=$ac_cv_build_prog_cc_c99
-  ac_prog_cc_stdc=c99
+  ac_prog_cc_stdc=c99 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -9004,8 +9200,8 @@
 if test ${ac_cv_build_prog_cc_c89+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_build_prog_cc_c89=no
+else case e in #(
+  e) ac_cv_build_prog_cc_c89=no
 ac_save_CC=$CC_FOR_BUILD
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -9022,25 +9218,28 @@
   test "x$ac_cv_build_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC_FOR_BUILD=$ac_save_CC
+CC_FOR_BUILD=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_build_prog_cc_c89" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_build_prog_cc_c89" = x
+else case e in #(
+  e) if test "x$ac_cv_build_prog_cc_c89" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_prog_cc_c89" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_prog_cc_c89" >&5
 printf "%s\n" "$ac_cv_build_prog_cc_c89" >&6; }
-     CC_FOR_BUILD="$CC_FOR_BUILD $ac_cv_build_prog_cc_c89"
+     CC_FOR_BUILD="$CC_FOR_BUILD $ac_cv_build_prog_cc_c89" ;;
+esac
 fi
   ac_cv_build_prog_cc_stdc=$ac_cv_build_prog_cc_c89
-  ac_prog_cc_stdc=c89
+  ac_prog_cc_stdc=c89 ;;
+esac
 fi
 fi
 
@@ -9061,8 +9260,8 @@
 if test ${am_cv_build_prog_cc_c_o+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -9092,7 +9291,8 @@
     fi
   done
   rm -f core conftest*
-  unset am_i
+  unset am_i ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_build_prog_cc_c_o" >&5
 printf "%s\n" "$am_cv_build_prog_cc_c_o" >&6; }
@@ -9118,8 +9318,8 @@
 if test ${am_cv_build_CC_dependencies_compiler_type+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+else case e in #(
+  e) if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
   # We make a subdir and do the tests there.  Otherwise we can end up
   # making bogus files that we don't know about and never remove.  For
   # instance it was reported that on HP-UX the gcc test will end up
@@ -9223,7 +9423,8 @@
 else
   am_cv_build_CC_dependencies_compiler_type=none
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_build_CC_dependencies_compiler_type" >&5
 printf "%s\n" "$am_cv_build_CC_dependencies_compiler_type" >&6; }
@@ -9255,8 +9456,8 @@
   if test ${ac_cv_build_prog_CPP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-      # Double quotes because $CC needs to be expanded
+else case e in #(
+  e)     # Double quotes because $CC needs to be expanded
     for CPP_FOR_BUILD in "$CC_FOR_BUILD -E" "$CC_FOR_BUILD -E -traditional-cpp" cpp /lib/cpp
     do
       ac_preproc_ok=false
@@ -9274,9 +9475,10 @@
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -9290,15 +9492,16 @@
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
@@ -9307,7 +9510,8 @@
 
     done
     ac_cv_build_prog_CPP=$CPP_FOR_BUILD
-
+   ;;
+esac
 fi
   CPP_FOR_BUILD=$ac_cv_build_prog_CPP
 else
@@ -9330,9 +9534,10 @@
 if ac_fn_c_try_cpp "$LINENO"
 then :
 
-else $as_nop
-  # Broken: fails on valid input.
-continue
+else case e in #(
+  e) # Broken: fails on valid input.
+continue ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
@@ -9346,24 +9551,26 @@
 then :
   # Broken: success on invalid input.
 continue
-else $as_nop
-  # Passes both tests.
+else case e in #(
+  e) # Passes both tests.
 ac_preproc_ok=:
-break
+break ;;
+esac
 fi
 rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+# Because of 'break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok
 then :
 
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "C preprocessor \"$CPP_FOR_BUILD\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 
 ac_ext=c
@@ -9379,8 +9586,8 @@
 if test ${st_cv_build_cc_enable_Werror+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #if defined __GNUC__ && defined __GNUC_MINOR__
@@ -9406,10 +9613,12 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_build_cc_enable_Werror=yes
-else $as_nop
-  st_cv_build_cc_enable_Werror=no
+else case e in #(
+  e) st_cv_build_cc_enable_Werror=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_build_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_build_cc_enable_Werror" >&5
 printf "%s\n" "$st_cv_build_cc_enable_Werror" >&6; }
@@ -9418,14 +9627,15 @@
 if test ${st_cv_build_enable_Werror+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$st_cv_build_cc_enable_Werror" != yes; then
+else case e in #(
+  e) if test "$st_cv_build_cc_enable_Werror" != yes; then
 		  st_cv_build_enable_Werror='no, the compiler is too old'
 		elif test "$arch_enable_Werror" != yes; then
 		  st_cv_build_enable_Werror='no, architecture is not ready'
 		else
 		  st_cv_build_enable_Werror=yes
-		fi
+		fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_build_enable_Werror" >&5
 printf "%s\n" "$st_cv_build_enable_Werror" >&6; }
@@ -9436,8 +9646,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9454,21 +9664,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -9479,8 +9692,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wall+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wall"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9497,13 +9710,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wall=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wall=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wall=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wall" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wall" >&6; }
@@ -9520,8 +9735,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9538,21 +9753,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -9563,8 +9781,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wextra+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wextra"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9581,13 +9799,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wextra=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wextra=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wextra=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wextra" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wextra" >&6; }
@@ -9604,8 +9824,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9622,21 +9842,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -9647,8 +9870,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wno_missing_field_initializers+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wmissing-field-initializers"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9665,13 +9888,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wno_missing_field_initializers=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wno_missing_field_initializers=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wno_missing_field_initializers=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wno_missing_field_initializers" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wno_missing_field_initializers" >&6; }
@@ -9688,8 +9913,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9706,21 +9931,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -9731,8 +9959,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wno_unused_parameter+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wunused-parameter"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9749,13 +9977,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wno_unused_parameter=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wno_unused_parameter=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wno_unused_parameter=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wno_unused_parameter" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wno_unused_parameter" >&6; }
@@ -9773,8 +10003,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9791,21 +10021,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -9816,8 +10049,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wdate_time+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wdate-time"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9834,13 +10067,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wdate_time=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wdate_time=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wdate_time=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wdate_time" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wdate_time" >&6; }
@@ -9857,8 +10092,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9875,21 +10110,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -9900,8 +10138,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wformat_security+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wformat-security"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9918,13 +10156,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wformat_security=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wformat_security=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wformat_security=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wformat_security" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wformat_security" >&6; }
@@ -9941,8 +10181,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9959,21 +10199,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -9984,8 +10227,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wimplicit_fallthrough_5+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wimplicit-fallthrough=5"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10002,13 +10245,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wimplicit_fallthrough_5=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wimplicit_fallthrough_5=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wimplicit_fallthrough_5=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wimplicit_fallthrough_5" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wimplicit_fallthrough_5" >&6; }
@@ -10025,8 +10270,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10043,21 +10288,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10068,8 +10316,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Winit_self+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Winit-self"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10086,13 +10334,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Winit_self=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Winit_self=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Winit_self=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Winit_self" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Winit_self" >&6; }
@@ -10109,8 +10359,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10127,21 +10377,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10152,8 +10405,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Winitializer_overrides+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Winitializer-overrides"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10170,13 +10423,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Winitializer_overrides=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Winitializer_overrides=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Winitializer_overrides=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Winitializer_overrides" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Winitializer_overrides" >&6; }
@@ -10193,8 +10448,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10211,21 +10466,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10236,8 +10494,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wlogical_op+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wlogical-op"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10254,13 +10512,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wlogical_op=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wlogical_op=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wlogical_op=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wlogical_op" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wlogical_op" >&6; }
@@ -10277,8 +10537,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10295,21 +10555,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10320,8 +10583,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wmissing_prototypes+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wmissing-prototypes"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10338,13 +10601,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wmissing_prototypes=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wmissing_prototypes=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wmissing_prototypes=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wmissing_prototypes" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wmissing_prototypes" >&6; }
@@ -10361,8 +10626,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10379,21 +10644,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10404,8 +10672,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wnested_externs+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wnested-externs"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10422,13 +10690,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wnested_externs=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wnested_externs=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wnested_externs=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wnested_externs" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wnested_externs" >&6; }
@@ -10445,8 +10715,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10463,21 +10733,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10488,8 +10761,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wold_style_definition+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wold-style-definition"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10506,13 +10779,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wold_style_definition=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wold_style_definition=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wold_style_definition=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wold_style_definition" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wold_style_definition" >&6; }
@@ -10529,8 +10804,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10547,21 +10822,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10572,8 +10850,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wtrampolines+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wtrampolines"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10590,13 +10868,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wtrampolines=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wtrampolines=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wtrampolines=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wtrampolines" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wtrampolines" >&6; }
@@ -10613,8 +10893,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10631,21 +10911,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10656,8 +10939,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wundef+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wundef"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10674,13 +10957,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wundef=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wundef=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wundef=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wundef" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wundef" >&6; }
@@ -10697,8 +10982,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10715,21 +11000,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10740,8 +11028,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Wwrite_strings+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Wwrite-strings"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10758,13 +11046,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Wwrite_strings=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Wwrite_strings=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Wwrite_strings=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Wwrite_strings" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Wwrite_strings" >&6; }
@@ -10781,8 +11071,9 @@
 		yes|no|no,*) ;;
 		*) as_fn_error $? "bad value $enable_gcc_Werror for gcc-Werror option" "$LINENO" 5 ;;
 	       esac
-else $as_nop
-  enable_gcc_Werror="$st_cv_build_enable_Werror"
+else case e in #(
+  e) enable_gcc_Werror="$st_cv_build_enable_Werror" ;;
+esac
 fi
 
 if test "$enable_gcc_Werror" = yes; then
@@ -10793,8 +11084,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror -Wunknown-warning-option"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10811,21 +11102,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" >&6; }
 if test "x$gl_cv_warn_CFLAGS_FOR_BUILD__Werror__Wunknown_warning_option" = xyes
 then :
   gl_build_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'
-else $as_nop
-  gl_build_unknown_warnings_are_errors=
+else case e in #(
+  e) gl_build_unknown_warnings_are_errors= ;;
+esac
 fi
 
 
@@ -10836,8 +11130,8 @@
 if test ${gl_cv_warn_CFLAGS_FOR_BUILD__Werror+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   gl_save_compiler_FLAGS="$CFLAGS_FOR_BUILD"
   as_fn_append CFLAGS_FOR_BUILD " $gl_build_unknown_warnings_are_errors -Werror"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10854,13 +11148,15 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   gl_cv_warn_CFLAGS_FOR_BUILD__Werror=yes
-else $as_nop
-  gl_cv_warn_CFLAGS_FOR_BUILD__Werror=no
+else case e in #(
+  e) gl_cv_warn_CFLAGS_FOR_BUILD__Werror=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_build_objext conftest.beam \
     conftest$ac_build_exeext conftest.$ac_ext
   CFLAGS_FOR_BUILD="$gl_save_compiler_FLAGS"
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_warn_CFLAGS_FOR_BUILD__Werror" >&5
 printf "%s\n" "$gl_cv_warn_CFLAGS_FOR_BUILD__Werror" >&6; }
@@ -10945,8 +11241,8 @@
 if test ${ac_cv_prog_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AR"; then
+else case e in #(
+  e) if test -n "$AR"; then
   ac_cv_prog_AR="$AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -10968,7 +11264,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
@@ -10994,8 +11291,8 @@
 if test ${ac_cv_prog_ac_ct_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_AR"; then
+else case e in #(
+  e) if test -n "$ac_ct_AR"; then
   ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -11017,7 +11314,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
@@ -11052,8 +11350,8 @@
 if test ${am_cv_ar_interface+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_ext=c
+else case e in #(
+  e) ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
@@ -11096,7 +11394,8 @@
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_ar_interface" >&5
 printf "%s\n" "$am_cv_ar_interface" >&6; }
@@ -11125,8 +11424,8 @@
 if test ${ac_cv_c_typeof+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_c_typeof=no
+else case e in #(
+  e) ac_cv_c_typeof=no
      for ac_kw in typeof __typeof__ no; do
        test $ac_kw = no && break
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -11158,7 +11457,8 @@
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
        test $ac_cv_c_typeof != no && break
-     done
+     done ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_typeof" >&5
 printf "%s\n" "$ac_cv_c_typeof" >&6; }
@@ -11174,179 +11474,26 @@
   fi
 
 
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
+ac_fn_c_check_type "$LINENO" "uid_t" "ac_cv_type_uid_t" "$ac_includes_default"
+if test "x$ac_cv_type_uid_t" = xyes
 then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    for ac_prog in grep ggrep
-   do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
-*)
-  ac_count=0
-  printf %s 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_GREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_GREP=$GREP
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-printf %s "checking for egrep... " >&6; }
-if test ${ac_cv_path_EGREP+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    for ac_prog in egrep
-   do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
-  ac_count=0
-  printf %s 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+else case e in #(
+  e)
+printf "%s\n" "#define uid_t int" >>confdefs.h
+ ;;
 esac
-
-      $ac_path_EGREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
-    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_EGREP=$EGREP
 fi
 
-   fi
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for uid_t in sys/types.h" >&5
-printf %s "checking for uid_t in sys/types.h... " >&6; }
-if test ${ac_cv_type_uid_t+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "uid_t" >/dev/null 2>&1
+ac_fn_c_check_type "$LINENO" "gid_t" "ac_cv_type_gid_t" "$ac_includes_default"
+if test "x$ac_cv_type_gid_t" = xyes
 then :
-  ac_cv_type_uid_t=yes
-else $as_nop
-  ac_cv_type_uid_t=no
-fi
-rm -rf conftest*
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_uid_t" >&5
-printf "%s\n" "$ac_cv_type_uid_t" >&6; }
-if test $ac_cv_type_uid_t = no; then
-
-printf "%s\n" "#define uid_t int" >>confdefs.h
-
 
+else case e in #(
+  e)
 printf "%s\n" "#define gid_t int" >>confdefs.h
-
+ ;;
+esac
 fi
 
 
@@ -11536,10 +11683,11 @@
 printf "%s\n" "#define HAVE_STRUCT_SOCKADDR_STORAGE 1" >>confdefs.h
 
 
-else $as_nop
-  mkdir -p src/linux/generic/linux
+else case e in #(
+  e) mkdir -p src/linux/generic/linux
 		cp $srcdir/src/linux/generic/socket.h.in src/linux/generic/linux/socket.h
-		CPPFLAGS="-Isrc/linux/generic $CPPFLAGS"
+		CPPFLAGS="-Isrc/linux/generic $CPPFLAGS" ;;
+esac
 fi
 
 
@@ -14026,8 +14174,8 @@
 if test ${st_cv_linux_signal+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <signal.h>
@@ -14043,10 +14191,12 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_linux_signal=yes
-else $as_nop
-  st_cv_linux_signal=no
+else case e in #(
+  e) st_cv_linux_signal=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_linux_signal" >&5
 printf "%s\n" "$st_cv_linux_signal" >&6; }
@@ -14094,8 +14244,8 @@
 if test ${ac_cv_c_undeclared_builtin_options+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_CFLAGS=$CFLAGS
+else case e in #(
+  e) ac_save_CFLAGS=$CFLAGS
    ac_cv_c_undeclared_builtin_options='cannot detect'
    for ac_arg in '' -fno-builtin; do
      CFLAGS="$ac_save_CFLAGS $ac_arg"
@@ -14114,8 +14264,8 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  # This test program should compile successfully.
+else case e in #(
+  e) # This test program should compile successfully.
         # No library function is consistently available on
         # freestanding implementations, so test against a dummy
         # declaration.  Include always-available headers on the
@@ -14143,26 +14293,29 @@
   if test x"$ac_arg" = x
 then :
   ac_cv_c_undeclared_builtin_options='none needed'
-else $as_nop
-  ac_cv_c_undeclared_builtin_options=$ac_arg
+else case e in #(
+  e) ac_cv_c_undeclared_builtin_options=$ac_arg ;;
+esac
 fi
           break
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     done
     CFLAGS=$ac_save_CFLAGS
-
+   ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
 printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; }
   case $ac_cv_c_undeclared_builtin_options in #(
   'cannot detect') :
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot make $CC report undeclared builtins
-See \`config.log' for more details" "$LINENO" 5; } ;; #(
+See 'config.log' for more details" "$LINENO" 5; } ;; #(
   'none needed') :
     ac_c_undeclared_builtin_options='' ;; #(
   *) :
@@ -14177,8 +14330,9 @@
 if test "x$ac_cv_have_decl_IEEE802154_ADDR_NONE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_IEEE802154_ADDR_NONE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "IEEE802154_ADDR_SHORT" "ac_cv_have_decl_IEEE802154_ADDR_SHORT" "
@@ -14187,8 +14341,9 @@
 if test "x$ac_cv_have_decl_IEEE802154_ADDR_SHORT" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_IEEE802154_ADDR_SHORT $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "IEEE802154_ADDR_LONG" "ac_cv_have_decl_IEEE802154_ADDR_LONG" "
@@ -14197,8 +14352,9 @@
 if test "x$ac_cv_have_decl_IEEE802154_ADDR_LONG" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_IEEE802154_ADDR_LONG $ac_have_decl" >>confdefs.h
 
@@ -14210,8 +14366,9 @@
 if test "x$ac_cv_have_decl_LO_FLAGS_READ_ONLY" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_LO_FLAGS_READ_ONLY $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "LO_FLAGS_USE_AOPS" "ac_cv_have_decl_LO_FLAGS_USE_AOPS" "
@@ -14221,8 +14378,9 @@
 if test "x$ac_cv_have_decl_LO_FLAGS_USE_AOPS" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_LO_FLAGS_USE_AOPS $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "LO_FLAGS_AUTOCLEAR" "ac_cv_have_decl_LO_FLAGS_AUTOCLEAR" "
@@ -14232,8 +14390,9 @@
 if test "x$ac_cv_have_decl_LO_FLAGS_AUTOCLEAR" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_LO_FLAGS_AUTOCLEAR $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "LO_FLAGS_PARTSCAN" "ac_cv_have_decl_LO_FLAGS_PARTSCAN" "
@@ -14243,8 +14402,9 @@
 if test "x$ac_cv_have_decl_LO_FLAGS_PARTSCAN" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_LO_FLAGS_PARTSCAN $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "LO_FLAGS_DIRECT_IO" "ac_cv_have_decl_LO_FLAGS_DIRECT_IO" "
@@ -14254,8 +14414,9 @@
 if test "x$ac_cv_have_decl_LO_FLAGS_DIRECT_IO" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_LO_FLAGS_DIRECT_IO $ac_have_decl" >>confdefs.h
 
@@ -14267,8 +14428,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_NEWSA" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_NEWSA $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_DELSA" "ac_cv_have_decl_XFRM_MSG_DELSA" "
@@ -14278,8 +14440,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_DELSA" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_DELSA $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_GETSA" "ac_cv_have_decl_XFRM_MSG_GETSA" "
@@ -14289,8 +14452,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_GETSA" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_GETSA $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_NEWPOLICY" "ac_cv_have_decl_XFRM_MSG_NEWPOLICY" "
@@ -14300,8 +14464,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_NEWPOLICY" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_NEWPOLICY $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_DELPOLICY" "ac_cv_have_decl_XFRM_MSG_DELPOLICY" "
@@ -14311,8 +14476,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_DELPOLICY" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_DELPOLICY $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_GETPOLICY" "ac_cv_have_decl_XFRM_MSG_GETPOLICY" "
@@ -14322,8 +14488,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_GETPOLICY" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_GETPOLICY $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_ALLOCSPI" "ac_cv_have_decl_XFRM_MSG_ALLOCSPI" "
@@ -14333,8 +14500,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_ALLOCSPI" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_ALLOCSPI $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_ACQUIRE" "ac_cv_have_decl_XFRM_MSG_ACQUIRE" "
@@ -14344,8 +14512,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_ACQUIRE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_ACQUIRE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_EXPIRE" "ac_cv_have_decl_XFRM_MSG_EXPIRE" "
@@ -14355,8 +14524,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_EXPIRE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_EXPIRE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_UPDPOLICY" "ac_cv_have_decl_XFRM_MSG_UPDPOLICY" "
@@ -14366,8 +14536,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_UPDPOLICY" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_UPDPOLICY $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_UPDSA" "ac_cv_have_decl_XFRM_MSG_UPDSA" "
@@ -14377,8 +14548,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_UPDSA" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_UPDSA $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_POLEXPIRE" "ac_cv_have_decl_XFRM_MSG_POLEXPIRE" "
@@ -14388,8 +14560,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_POLEXPIRE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_POLEXPIRE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_FLUSHSA" "ac_cv_have_decl_XFRM_MSG_FLUSHSA" "
@@ -14399,8 +14572,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_FLUSHSA" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_FLUSHSA $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_FLUSHPOLICY" "ac_cv_have_decl_XFRM_MSG_FLUSHPOLICY" "
@@ -14410,8 +14584,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_FLUSHPOLICY" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_FLUSHPOLICY $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_NEWAE" "ac_cv_have_decl_XFRM_MSG_NEWAE" "
@@ -14421,8 +14596,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_NEWAE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_NEWAE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_GETAE" "ac_cv_have_decl_XFRM_MSG_GETAE" "
@@ -14432,8 +14608,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_GETAE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_GETAE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_REPORT" "ac_cv_have_decl_XFRM_MSG_REPORT" "
@@ -14443,8 +14620,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_REPORT" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_REPORT $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_MIGRATE" "ac_cv_have_decl_XFRM_MSG_MIGRATE" "
@@ -14454,8 +14632,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_MIGRATE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_MIGRATE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_NEWSADINFO" "ac_cv_have_decl_XFRM_MSG_NEWSADINFO" "
@@ -14465,8 +14644,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_NEWSADINFO" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_NEWSADINFO $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_GETSADINFO" "ac_cv_have_decl_XFRM_MSG_GETSADINFO" "
@@ -14476,8 +14656,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_GETSADINFO" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_GETSADINFO $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_NEWSPDINFO" "ac_cv_have_decl_XFRM_MSG_NEWSPDINFO" "
@@ -14487,8 +14668,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_NEWSPDINFO" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_NEWSPDINFO $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_GETSPDINFO" "ac_cv_have_decl_XFRM_MSG_GETSPDINFO" "
@@ -14498,8 +14680,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_GETSPDINFO" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_GETSPDINFO $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_MAPPING" "ac_cv_have_decl_XFRM_MSG_MAPPING" "
@@ -14509,8 +14692,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_MAPPING" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_MAPPING $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_SETDEFAULT" "ac_cv_have_decl_XFRM_MSG_SETDEFAULT" "
@@ -14520,8 +14704,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_SETDEFAULT" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_SETDEFAULT $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "XFRM_MSG_GETDEFAULT" "ac_cv_have_decl_XFRM_MSG_GETDEFAULT" "
@@ -14531,8 +14716,9 @@
 if test "x$ac_cv_have_decl_XFRM_MSG_GETDEFAULT" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_XFRM_MSG_GETDEFAULT $ac_have_decl" >>confdefs.h
 
@@ -14543,8 +14729,9 @@
 if test "x$ac_cv_have_decl_PTP_PF_NONE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_PTP_PF_NONE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "PTP_PF_EXTTS" "ac_cv_have_decl_PTP_PF_EXTTS" "
@@ -14553,8 +14740,9 @@
 if test "x$ac_cv_have_decl_PTP_PF_EXTTS" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_PTP_PF_EXTTS $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "PTP_PF_PEROUT" "ac_cv_have_decl_PTP_PF_PEROUT" "
@@ -14563,8 +14751,9 @@
 if test "x$ac_cv_have_decl_PTP_PF_PEROUT" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_PTP_PF_PEROUT $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "PTP_PF_PHYSYNC" "ac_cv_have_decl_PTP_PF_PHYSYNC" "
@@ -14573,8 +14762,9 @@
 if test "x$ac_cv_have_decl_PTP_PF_PHYSYNC" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_PTP_PF_PHYSYNC $ac_have_decl" >>confdefs.h
 
@@ -14585,8 +14775,9 @@
 if test "x$ac_cv_have_decl_NFEA_UNSPEC" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_NFEA_UNSPEC $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "NFEA_ACTIVITY_NOTIFY" "ac_cv_have_decl_NFEA_ACTIVITY_NOTIFY" "
@@ -14595,8 +14786,9 @@
 if test "x$ac_cv_have_decl_NFEA_ACTIVITY_NOTIFY" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_NFEA_ACTIVITY_NOTIFY $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "NFEA_DONT_REFRESH" "ac_cv_have_decl_NFEA_DONT_REFRESH" "
@@ -14605,8 +14797,9 @@
 if test "x$ac_cv_have_decl_NFEA_DONT_REFRESH" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_NFEA_DONT_REFRESH $ac_have_decl" >>confdefs.h
 
@@ -14618,8 +14811,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_UNSPEC" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_UNSPEC $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_KIND" "ac_cv_have_decl_TCA_ACT_KIND" "
@@ -14629,8 +14823,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_KIND" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_KIND $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_OPTIONS" "ac_cv_have_decl_TCA_ACT_OPTIONS" "
@@ -14640,8 +14835,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_OPTIONS" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_OPTIONS $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_INDEX" "ac_cv_have_decl_TCA_ACT_INDEX" "
@@ -14651,8 +14847,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_INDEX" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_INDEX $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_STATS" "ac_cv_have_decl_TCA_ACT_STATS" "
@@ -14662,8 +14859,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_STATS" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_STATS $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_PAD" "ac_cv_have_decl_TCA_ACT_PAD" "
@@ -14673,8 +14871,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_PAD" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_PAD $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_COOKIE" "ac_cv_have_decl_TCA_ACT_COOKIE" "
@@ -14684,8 +14883,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_COOKIE" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_COOKIE $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_FLAGS" "ac_cv_have_decl_TCA_ACT_FLAGS" "
@@ -14695,8 +14895,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_FLAGS" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_FLAGS $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_HW_STATS" "ac_cv_have_decl_TCA_ACT_HW_STATS" "
@@ -14706,8 +14907,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_HW_STATS" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_HW_STATS $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_USED_HW_STATS" "ac_cv_have_decl_TCA_ACT_USED_HW_STATS" "
@@ -14717,8 +14919,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_USED_HW_STATS" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_USED_HW_STATS $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "TCA_ACT_IN_HW_COUNT" "ac_cv_have_decl_TCA_ACT_IN_HW_COUNT" "
@@ -14728,8 +14931,9 @@
 if test "x$ac_cv_have_decl_TCA_ACT_IN_HW_COUNT" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_TCA_ACT_IN_HW_COUNT $ac_have_decl" >>confdefs.h
 
@@ -14742,8 +14946,9 @@
 if test "x$ac_cv_have_decl_P_ALL" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_P_ALL $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "P_PID" "ac_cv_have_decl_P_PID" "
@@ -14754,8 +14959,9 @@
 if test "x$ac_cv_have_decl_P_PID" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_P_PID $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "P_PGID" "ac_cv_have_decl_P_PGID" "
@@ -14766,8 +14972,9 @@
 if test "x$ac_cv_have_decl_P_PGID" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_P_PGID $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "P_PIDFD" "ac_cv_have_decl_P_PIDFD" "
@@ -14778,8 +14985,9 @@
 if test "x$ac_cv_have_decl_P_PIDFD" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_P_PIDFD $ac_have_decl" >>confdefs.h
 
@@ -14789,8 +14997,9 @@
 if test "x$ac_cv_have_decl_sys_errlist" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_SYS_ERRLIST $ac_have_decl" >>confdefs.h
 
@@ -14799,8 +15008,9 @@
 if test "x$ac_cv_have_decl_PTRACE_PEEKUSER" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_PTRACE_PEEKUSER $ac_have_decl" >>confdefs.h
 ac_fn_check_decl "$LINENO" "PTRACE_POKEUSER" "ac_cv_have_decl_PTRACE_POKEUSER" "#include <sys/ptrace.h>
@@ -14808,36 +15018,39 @@
 if test "x$ac_cv_have_decl_PTRACE_POKEUSER" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_PTRACE_POKEUSER $ac_have_decl" >>confdefs.h
 
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
 printf %s "checking size of long... " >&6; }
 if test ${ac_cv_sizeof_long+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
 then :
 
-else $as_nop
-  if test "$ac_cv_type_long" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_long" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (long)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_long=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
 printf "%s\n" "$ac_cv_sizeof_long" >&6; }
@@ -14851,28 +15064,30 @@
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
 printf %s "checking size of long long... " >&6; }
 if test ${ac_cv_sizeof_long_long+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"
 then :
 
-else $as_nop
-  if test "$ac_cv_type_long_long" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_long_long" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (long long)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_long_long=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
 printf "%s\n" "$ac_cv_sizeof_long_long" >&6; }
@@ -14884,29 +15099,31 @@
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of off_t" >&5
 printf %s "checking size of off_t... " >&6; }
 if test ${ac_cv_sizeof_off_t+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (off_t))" "ac_cv_sizeof_off_t"        "#include <sys/types.h>
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (off_t))" "ac_cv_sizeof_off_t"        "#include <sys/types.h>
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_off_t" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_off_t" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (off_t)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_off_t=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_off_t" >&5
 printf "%s\n" "$ac_cv_sizeof_off_t" >&6; }
@@ -14918,29 +15135,31 @@
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of kernel_long_t" >&5
 printf %s "checking size of kernel_long_t... " >&6; }
 if test ${ac_cv_sizeof_kernel_long_t+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (kernel_long_t))" "ac_cv_sizeof_kernel_long_t"        "#include \"$srcdir/src/kernel_types.h\"
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (kernel_long_t))" "ac_cv_sizeof_kernel_long_t"        "#include \"$srcdir/src/kernel_types.h\"
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_kernel_long_t" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_kernel_long_t" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (kernel_long_t)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_kernel_long_t=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_kernel_long_t" >&5
 printf "%s\n" "$ac_cv_sizeof_kernel_long_t" >&6; }
@@ -14954,29 +15173,31 @@
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of struct i64_i32" >&5
 printf %s "checking size of struct i64_i32... " >&6; }
 if test ${ac_cv_sizeof_struct_i64_i32+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct i64_i32))" "ac_cv_sizeof_struct_i64_i32"        "struct i64_i32 {long long i64; int i32;};
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct i64_i32))" "ac_cv_sizeof_struct_i64_i32"        "struct i64_i32 {long long i64; int i32;};
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_struct_i64_i32" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_struct_i64_i32" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (struct i64_i32)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_struct_i64_i32=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_i64_i32" >&5
 printf "%s\n" "$ac_cv_sizeof_struct_i64_i32" >&6; }
@@ -14988,29 +15209,31 @@
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of struct msqid64_ds" >&5
 printf %s "checking size of struct msqid64_ds... " >&6; }
 if test ${ac_cv_sizeof_struct_msqid64_ds+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct msqid64_ds))" "ac_cv_sizeof_struct_msqid64_ds"        "#include <linux/msg.h>
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct msqid64_ds))" "ac_cv_sizeof_struct_msqid64_ds"        "#include <linux/msg.h>
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_struct_msqid64_ds" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_struct_msqid64_ds" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (struct msqid64_ds)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_struct_msqid64_ds=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_msqid64_ds" >&5
 printf "%s\n" "$ac_cv_sizeof_struct_msqid64_ds" >&6; }
@@ -15027,11 +15250,12 @@
 if test ${st_cv_SIGRTMIN+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  st_cv_SIGRTMIN="$(echo SIGRTMIN |
+else case e in #(
+  e) st_cv_SIGRTMIN="$(echo SIGRTMIN |
 			$CPP $CPPFLAGS -P -imacros asm/signal.h - |
 			grep '^[0-9]')"
-		 test -n "$st_cv_SIGRTMIN" || st_cv_SIGRTMIN=no
+		 test -n "$st_cv_SIGRTMIN" || st_cv_SIGRTMIN=no ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_SIGRTMIN" >&5
 printf "%s\n" "$st_cv_SIGRTMIN" >&6; }
@@ -15045,11 +15269,12 @@
 if test ${st_cv_SA_RESTORER+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  st_cv_SA_RESTORER="$(echo SA_RESTORER |
+else case e in #(
+  e) st_cv_SA_RESTORER="$(echo SA_RESTORER |
 			$CPP $CPPFLAGS -P -imacros asm/signal.h - |
 			grep ^0x)"
-		test -n "$st_cv_SA_RESTORER" || st_cv_SA_RESTORER=no
+		test -n "$st_cv_SA_RESTORER" || st_cv_SA_RESTORER=no ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_SA_RESTORER" >&5
 printf "%s\n" "$st_cv_SA_RESTORER" >&6; }
@@ -15064,8 +15289,8 @@
 if test ${st_cv_have___builtin_popcount+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -15079,11 +15304,13 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   st_cv_have___builtin_popcount=yes
-else $as_nop
-  st_cv_have___builtin_popcount=no
+else case e in #(
+  e) st_cv_have___builtin_popcount=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_have___builtin_popcount" >&5
 printf "%s\n" "$st_cv_have___builtin_popcount" >&6; }
@@ -15098,8 +15325,8 @@
 if test ${st_cv_have_program_invocation_name+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <errno.h>
 int
@@ -15113,11 +15340,13 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   st_cv_have_program_invocation_name=yes
-else $as_nop
-  st_cv_have_program_invocation_name=no
+else case e in #(
+  e) st_cv_have_program_invocation_name=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_have_program_invocation_name" >&5
 printf "%s\n" "$st_cv_have_program_invocation_name" >&6; }
@@ -15132,8 +15361,8 @@
 if test ${st_cv_have_static_assert+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <assert.h>
 int
@@ -15149,8 +15378,8 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   st_cv_have_static_assert=yes
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -15166,19 +15395,22 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   st_cv_have_static_assert=_Static_assert
-else $as_nop
-  st_cv_have_static_assert=no
-
+else case e in #(
+  e) st_cv_have_static_assert=no
+					       ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
-
+			       ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
-
+	       ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_have_static_assert" >&5
 printf "%s\n" "$st_cv_have_static_assert" >&6; }
@@ -15201,8 +15433,8 @@
 if test ${ac_cv_search_dladdr+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -15246,11 +15478,13 @@
 if test ${ac_cv_search_dladdr+y}
 then :
 
-else $as_nop
-  ac_cv_search_dladdr=no
+else case e in #(
+  e) ac_cv_search_dladdr=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dladdr" >&5
 printf "%s\n" "$ac_cv_search_dladdr" >&6; }
@@ -15279,8 +15513,8 @@
 if test ${ac_cv_search_timer_create+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -15324,11 +15558,13 @@
 if test ${ac_cv_search_timer_create+y}
 then :
 
-else $as_nop
-  ac_cv_search_timer_create=no
+else case e in #(
+  e) ac_cv_search_timer_create=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_timer_create" >&5
 printf "%s\n" "$ac_cv_search_timer_create" >&6; }
@@ -15341,10 +15577,10 @@
 
 LIBS="$saved_LIBS"
 case "$ac_cv_search_timer_create" in
-	no) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	no) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find timer_create
-See \`config.log' for more details" "$LINENO" 5; } ;;
+See 'config.log' for more details" "$LINENO" 5; } ;;
 	-l*) timer_LIBS="$ac_cv_search_timer_create" ;;
 	*) timer_LIBS= ;;
 esac
@@ -15356,8 +15592,8 @@
 if test ${ac_cv_search_clock_gettime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -15401,11 +15637,13 @@
 if test ${ac_cv_search_clock_gettime+y}
 then :
 
-else $as_nop
-  ac_cv_search_clock_gettime=no
+else case e in #(
+  e) ac_cv_search_clock_gettime=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
 printf "%s\n" "$ac_cv_search_clock_gettime" >&6; }
@@ -15418,10 +15656,10 @@
 
 LIBS="$saved_LIBS"
 case "$ac_cv_search_clock_gettime" in
-	no) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	no) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find clock_gettime
-See \`config.log' for more details" "$LINENO" 5; } ;;
+See 'config.log' for more details" "$LINENO" 5; } ;;
 	-l*) clock_LIBS="$ac_cv_search_clock_gettime" ;;
 	*) clock_LIBS= ;;
 esac
@@ -15433,8 +15671,8 @@
 if test ${ac_cv_search_log10+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -15478,11 +15716,13 @@
 if test ${ac_cv_search_log10+y}
 then :
 
-else $as_nop
-  ac_cv_search_log10=no
+else case e in #(
+  e) ac_cv_search_log10=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_log10" >&5
 printf "%s\n" "$ac_cv_search_log10" >&6; }
@@ -15495,10 +15735,10 @@
 
 LIBS="$saved_LIBS"
 case "$ac_cv_search_log10" in
-	no) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	no) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find log10
-See \`config.log' for more details" "$LINENO" 5; } ;;
+See 'config.log' for more details" "$LINENO" 5; } ;;
 	-l*) m_LIBS="$ac_cv_search_log10" ;;
 	*) m_LIBS= ;;
 esac
@@ -15510,8 +15750,8 @@
 if test ${ac_cv_search_mq_open+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -15555,11 +15795,13 @@
 if test ${ac_cv_search_mq_open+y}
 then :
 
-else $as_nop
-  ac_cv_search_mq_open=no
+else case e in #(
+  e) ac_cv_search_mq_open=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_mq_open" >&5
 printf "%s\n" "$ac_cv_search_mq_open" >&6; }
@@ -15585,8 +15827,8 @@
 if test ${ac_cv_prog_READELF+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$READELF"; then
+else case e in #(
+  e) if test -n "$READELF"; then
   ac_cv_prog_READELF="$READELF" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -15608,7 +15850,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 READELF=$ac_cv_prog_READELF
 if test -n "$READELF"; then
@@ -15630,8 +15873,8 @@
 if test ${ac_cv_prog_ac_ct_READELF+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_READELF"; then
+else case e in #(
+  e) if test -n "$ac_ct_READELF"; then
   ac_cv_prog_ac_ct_READELF="$ac_ct_READELF" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -15653,7 +15896,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_READELF=$ac_cv_prog_ac_ct_READELF
 if test -n "$ac_ct_READELF"; then
@@ -15690,8 +15934,9 @@
 Valid options are: yes, no, check." "$LINENO" 5
 		;;
 	 esac
-else $as_nop
-  enable_stacktrace=check
+else case e in #(
+  e) enable_stacktrace=check ;;
+esac
 fi
 
 
@@ -15716,9 +15961,10 @@
 		with_libdw=yes ;;
 	     esac
 
-else $as_nop
-  with_libdw=check
-
+else case e in #(
+  e) with_libdw=check
+	    ;;
+esac
 fi
 
 
@@ -15738,9 +15984,10 @@
 		libunwind_CPPFLAGS="-I${withval}/include"
 		libunwind_LDFLAGS="-L${withval}/lib" ;;
 	     esac
-else $as_nop
-  with_libunwind=check
-
+else case e in #(
+  e) with_libunwind=check
+ ;;
+esac
 fi
 
 
@@ -15779,8 +16026,8 @@
 if test ${ac_cv_lib_dw_dwfl_linux_proc_attach+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldw $libdw_LDFLAGS $libdw_LIBS
 				      $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -15807,12 +16054,14 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dw_dwfl_linux_proc_attach=yes
-else $as_nop
-  ac_cv_lib_dw_dwfl_linux_proc_attach=no
+else case e in #(
+  e) ac_cv_lib_dw_dwfl_linux_proc_attach=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dw_dwfl_linux_proc_attach" >&5
 printf "%s\n" "$ac_cv_lib_dw_dwfl_linux_proc_attach" >&6; }
@@ -15824,56 +16073,61 @@
 if test ${st_cv_ELFUTILS_VERSION+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  st_cv_ELFUTILS_VERSION="$(echo _ELFUTILS_VERSION |
+else case e in #(
+  e) st_cv_ELFUTILS_VERSION="$(echo _ELFUTILS_VERSION |
 										  $CPP $CPPFLAGS -P -imacros elfutils/version.h - |
 										  grep '^[0-9]')"
 							test -n "$st_cv_ELFUTILS_VERSION" ||
 								st_cv_ELFUTILS_VERSION=0
 
-
+						      ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_ELFUTILS_VERSION" >&5
 printf "%s\n" "$st_cv_ELFUTILS_VERSION" >&6; }
 				       if test "$st_cv_ELFUTILS_VERSION" -ge 164
 then :
   have_libdw=yes
-else $as_nop
-  if test "x$with_libdw" = xyes
+else case e in #(
+  e) if test "x$with_libdw" = xyes
 then :
   as_fn_error $? "elfutils version >= 164 is required for stack tracing support" "$LINENO" 5
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: elfutils version >= 164 is required for stack tracing support" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: elfutils version >= 164 is required for stack tracing support" >&5
 printf "%s\n" "$as_me: WARNING: elfutils version >= 164 is required for stack tracing support" >&2;}
-
+						    ;;
+esac
 fi
 
-
+					     ;;
+esac
 fi
 
-else $as_nop
-  if test "x$with_libdw" = xyes
+else case e in #(
+  e) if test "x$with_libdw" = xyes
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find dwfl_linux_proc_attach in libdw
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 fi
-
+				       ;;
+esac
 fi
 
 
-else $as_nop
-  if test "x$with_libdw" = xyes
+else case e in #(
+  e) if test "x$with_libdw" = xyes
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find elfutils/libdwfl.h
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 fi
 
-
+		        ;;
+esac
 fi
 
 done
@@ -15922,8 +16176,8 @@
 if test ${ac_cv_lib_unwind_backtrace+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lunwind $libunwind_LIBS
 	   $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -15950,12 +16204,14 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_unwind_backtrace=yes
-else $as_nop
-  ac_cv_lib_unwind_backtrace=no
+else case e in #(
+  e) ac_cv_lib_unwind_backtrace=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unwind_backtrace" >&5
 printf "%s\n" "$ac_cv_lib_unwind_backtrace" >&6; }
@@ -15991,8 +16247,8 @@
 if test ${ac_cv_lib_unwind_ptrace__UPT_create+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lunwind-ptrace $libunwind_LIBS
 		 $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -16019,12 +16275,14 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_unwind_ptrace__UPT_create=yes
-else $as_nop
-  ac_cv_lib_unwind_ptrace__UPT_create=no
+else case e in #(
+  e) ac_cv_lib_unwind_ptrace__UPT_create=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unwind_ptrace__UPT_create" >&5
 printf "%s\n" "$ac_cv_lib_unwind_ptrace__UPT_create" >&6; }
@@ -16033,56 +16291,60 @@
   libunwind_LIBS="-lunwind-ptrace $libunwind_LIBS"
 		   use_unwinder=libunwind
 
-else $as_nop
-  if test "x$with_libunwind" != xcheck; then
-		     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "x$with_libunwind" != xcheck; then
+		     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find _UPT_create in libunwind-ptrace
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 		   fi
-
+		   ;;
+esac
 fi
 
 
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
 		if test "x$with_libunwind" != xcheck; then
-		  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+		  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find unw_create_addr_space in libunwind-generic
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 		fi
 
-
+	      ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
 	     LIBS="$saved_LIBS"
 
-else $as_nop
-  if test "x$with_libunwind" != xcheck; then
-	       { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "x$with_libunwind" != xcheck; then
+	       { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find libunwind
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	     fi
-
+	     ;;
+esac
 fi
 
 
 	  LDFLAGS="$saved_LDFLAGS"
 
-else $as_nop
-  if test "x$with_libunwind" != xcheck; then
-	    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "x$with_libunwind" != xcheck; then
+	    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find libunwind-ptrace.h
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	  fi
 
-
+        ;;
+esac
 fi
 
 done
@@ -16165,9 +16427,10 @@
 		libiberty_CPPFLAGS="-I${withval}/include"
 		libiberty_LDFLAGS="-L${withval}/lib" ;;
 	     esac
-else $as_nop
-  with_libiberty=check
-
+else case e in #(
+  e) with_libiberty=check
+ ;;
+esac
 fi
 
 
@@ -16180,12 +16443,12 @@
        found_demangle_h=no
               for ac_header in demangle.h libiberty/demangle.h
 do :
-  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
 _ACEOF
  found_demangle_h=yes
 fi
@@ -16201,8 +16464,8 @@
 if test ${ac_cv_lib_iberty_cplus_demangle+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-liberty  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -16228,12 +16491,14 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_iberty_cplus_demangle=yes
-else $as_nop
-  ac_cv_lib_iberty_cplus_demangle=no
+else case e in #(
+  e) ac_cv_lib_iberty_cplus_demangle=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_iberty_cplus_demangle" >&5
 printf "%s\n" "$ac_cv_lib_iberty_cplus_demangle" >&6; }
@@ -16242,28 +16507,30 @@
   libiberty_LIBS="-liberty"
 		 use_libiberty=yes
 
-else $as_nop
-  if test "x$with_libiberty" != xcheck; then
-		   { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "x$with_libiberty" != xcheck; then
+		   { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find cplus_demangle in libiberty
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 		 fi
 
-
+	       ;;
+esac
 fi
 
 	      LDFLAGS="$saved_LDFLAGS"
 
-else $as_nop
-  if test "x$with_libiberty" != xcheck; then
-		{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "x$with_libiberty" != xcheck; then
+		{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find demangle.h
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	      fi
 
-
+        ;;
+esac
 fi
 
 
@@ -16283,9 +16550,10 @@
 printf "%s\n" "$use_libiberty" >&6; }
 
 
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
 
  if test "x$use_libiberty" = xyes; then
@@ -16315,9 +16583,10 @@
 		libselinux_CPPFLAGS="-I${withval}/include"
 		libselinux_LDFLAGS="-L${withval}/lib" ;;
 	     esac
-else $as_nop
-  with_libselinux=check
-
+else case e in #(
+  e) with_libselinux=check
+ ;;
+esac
 fi
 
 
@@ -16343,14 +16612,14 @@
 	      LDFLAGS="$LDFLAGS $libselinux_LDFLAGS"
 	      missing=
 	      for func in getpidcon getfilecon selabel_open selabel_lookup; do
-		as_ac_Lib=`printf "%s\n" "ac_cv_lib_selinux_$func" | $as_tr_sh`
+		as_ac_Lib=`printf "%s\n" "ac_cv_lib_selinux_$func" | sed "$as_sed_sh"`
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $func in -lselinux" >&5
 printf %s "checking for $func in -lselinux... " >&6; }
 if eval test \${$as_ac_Lib+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lselinux  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -16376,12 +16645,14 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   eval "$as_ac_Lib=yes"
-else $as_nop
-  eval "$as_ac_Lib=no"
+else case e in #(
+  e) eval "$as_ac_Lib=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 eval ac_res=\$$as_ac_Lib
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -16389,8 +16660,9 @@
 if eval test \"x\$"$as_ac_Lib"\" = x"yes"
 then :
   :
-else $as_nop
-  missing="$missing $func"
+else case e in #(
+  e) missing="$missing $func" ;;
+esac
 fi
 
 	      done
@@ -16399,31 +16671,33 @@
   libselinux_LIBS="-lselinux"
 		     enable_secontext=yes
 
-else $as_nop
-  if test "x$with_libselinux" != xcheck
+else case e in #(
+  e) if test "x$with_libselinux" != xcheck
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find in libselinux:$missing
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 fi
 
-
+	       ;;
+esac
 fi
 	      LDFLAGS="$saved_LDFLAGS"
 
-else $as_nop
-  if test "x$with_libselinux" != xcheck
+else case e in #(
+  e) if test "x$with_libselinux" != xcheck
 then :
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to find selinux.h
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 fi
 
-
+        ;;
+esac
 fi
 
 
@@ -16444,9 +16718,10 @@
 
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 printf "%s\n" "yes" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
 
  if test "x$enable_secontext" = xyes; then
@@ -16492,8 +16767,9 @@
 Valid options are: yes, no, check, m32, mx32." "$LINENO" 5
 		;;
 	 esac
-else $as_nop
-  enable_mpers=yes
+else case e in #(
+  e) enable_mpers=yes ;;
+esac
 fi
 
 
@@ -16518,8 +16794,8 @@
 if test ${ac_cv_prog_CC_FOR_M32+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC_FOR_M32"; then
+else case e in #(
+  e) if test -n "$CC_FOR_M32"; then
   ac_cv_prog_CC_FOR_M32="$CC_FOR_M32" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -16541,7 +16817,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC_FOR_M32=$ac_cv_prog_CC_FOR_M32
 if test -n "$CC_FOR_M32"; then
@@ -16632,12 +16909,13 @@
 then :
   printf "%s\n" "#define HAVE_GNU_STUBS_32_H 1" >>confdefs.h
  IFLAG=
-else $as_nop
-  mkdir -p src/gnu
+else case e in #(
+  e) mkdir -p src/gnu
 			  : > src/gnu/stubs-32.h
 			  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Created empty gnu/stubs-32.h" >&5
 printf "%s\n" "$as_me: Created empty gnu/stubs-32.h" >&6;}
-			  IFLAG=-Isrc
+			  IFLAG=-Isrc ;;
+esac
 fi
 
 done
@@ -16651,8 +16929,8 @@
 if test ${st_cv_m32_cc+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdint.h>
 #include <errno.h>
@@ -16667,10 +16945,12 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_m32_cc=yes
-else $as_nop
-  st_cv_m32_cc=no
+else case e in #(
+  e) st_cv_m32_cc=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_m32_cc" >&5
 printf "%s\n" "$st_cv_m32_cc" >&6; }
@@ -16680,12 +16960,12 @@
 if test ${st_cv_m32_runtime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   st_cv_m32_runtime=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdint.h>
 #include <errno.h>
@@ -16700,13 +16980,16 @@
 if ac_fn_c_try_run "$LINENO"
 then :
   st_cv_m32_runtime=yes
-else $as_nop
-  st_cv_m32_runtime=no
+else case e in #(
+  e) st_cv_m32_runtime=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_m32_runtime" >&5
 printf "%s\n" "$st_cv_m32_runtime" >&6; }
@@ -16715,14 +16998,15 @@
 if test ${st_cv_m32_mpers+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if READELF="$READELF" \
+else case e in #(
+  e) if READELF="$READELF" \
 			    CC="$CC" CPP="$CPP" CPPFLAGS="$CPPFLAGS" \
 			    $srcdir/src/mpers_test.sh m32 "$cc_flags_m32"; then
 				st_cv_m32_mpers=yes
 			 else
 				st_cv_m32_mpers=no
-			 fi
+			 fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_m32_mpers" >&5
 printf "%s\n" "$st_cv_m32_mpers" >&6; }
@@ -16733,8 +17017,8 @@
 if test ${st_cv_m32_selinux_runtime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  saved_CPPFLAGS="$CPPFLAGS"
+else case e in #(
+  e) saved_CPPFLAGS="$CPPFLAGS"
 				 saved_LDFLAGS="$LDFLAGS_FOR_M32"
 				 saved_LIBS="$LIBS"
 				 CPPFLAGS="$CPPFLAGS $libselinux_CPPFLAGS"
@@ -16754,21 +17038,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   st_cv_m32_selinux_runtime=yes
-else $as_nop
-  st_cv_m32_selinux_runtime=no
+else case e in #(
+  e) st_cv_m32_selinux_runtime=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 				 LIBS="$saved_LIBS"
 				 LDFLAGS_FOR_M32="$saved_LDFLAGS"
 				 CPPFLAGS="$saved_CPPFLAGS"
-
+				 ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_m32_selinux_runtime" >&5
 printf "%s\n" "$st_cv_m32_selinux_runtime" >&6; }
 
-else $as_nop
-  st_cv_m32_selinux_runtime=no
+else case e in #(
+  e) st_cv_m32_selinux_runtime=no ;;
+esac
 fi
 		if test $st_cv_m32_mpers = yes; then
 
@@ -17009,28 +17296,30 @@
 
 				# The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
 printf %s "checking size of long... " >&6; }
 if test ${ac_cv_sizeof_long+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
 then :
 
-else $as_nop
-  if test "$ac_cv_type_long" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_long" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (long)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_long=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
 printf "%s\n" "$ac_cv_sizeof_long" >&6; }
@@ -17085,29 +17374,31 @@
 
 				# The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of kernel_long_t" >&5
 printf %s "checking size of kernel_long_t... " >&6; }
 if test ${ac_cv_sizeof_kernel_long_t+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (kernel_long_t))" "ac_cv_sizeof_kernel_long_t"        "#include \"$srcdir/src/kernel_types.h\"
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (kernel_long_t))" "ac_cv_sizeof_kernel_long_t"        "#include \"$srcdir/src/kernel_types.h\"
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_kernel_long_t" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_kernel_long_t" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (kernel_long_t)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_kernel_long_t=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_kernel_long_t" >&5
 printf "%s\n" "$ac_cv_sizeof_kernel_long_t" >&6; }
@@ -17162,29 +17453,31 @@
 
 				# The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of struct msqid64_ds" >&5
 printf %s "checking size of struct msqid64_ds... " >&6; }
 if test ${ac_cv_sizeof_struct_msqid64_ds+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct msqid64_ds))" "ac_cv_sizeof_struct_msqid64_ds"        "#include <linux/msg.h>
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct msqid64_ds))" "ac_cv_sizeof_struct_msqid64_ds"        "#include <linux/msg.h>
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_struct_msqid64_ds" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_struct_msqid64_ds" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (struct msqid64_ds)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_struct_msqid64_ds=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_msqid64_ds" >&5
 printf "%s\n" "$ac_cv_sizeof_struct_msqid64_ds" >&6; }
@@ -17368,12 +17661,13 @@
 then :
   printf "%s\n" "#define HAVE_GNU_STUBS_X32_H 1" >>confdefs.h
  IFLAG=
-else $as_nop
-  mkdir -p src/gnu
+else case e in #(
+  e) mkdir -p src/gnu
 			  : > src/gnu/stubs-x32.h
 			  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Created empty gnu/stubs-x32.h" >&5
 printf "%s\n" "$as_me: Created empty gnu/stubs-x32.h" >&6;}
-			  IFLAG=-Isrc
+			  IFLAG=-Isrc ;;
+esac
 fi
 
 done
@@ -17387,8 +17681,8 @@
 if test ${st_cv_mx32_cc+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdint.h>
 #include <errno.h>
@@ -17403,10 +17697,12 @@
 if ac_fn_c_try_compile "$LINENO"
 then :
   st_cv_mx32_cc=yes
-else $as_nop
-  st_cv_mx32_cc=no
+else case e in #(
+  e) st_cv_mx32_cc=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_mx32_cc" >&5
 printf "%s\n" "$st_cv_mx32_cc" >&6; }
@@ -17416,12 +17712,12 @@
 if test ${st_cv_mx32_runtime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   st_cv_mx32_runtime=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdint.h>
 #include <errno.h>
@@ -17436,13 +17732,16 @@
 if ac_fn_c_try_run "$LINENO"
 then :
   st_cv_mx32_runtime=yes
-else $as_nop
-  st_cv_mx32_runtime=no
+else case e in #(
+  e) st_cv_mx32_runtime=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_mx32_runtime" >&5
 printf "%s\n" "$st_cv_mx32_runtime" >&6; }
@@ -17451,14 +17750,15 @@
 if test ${st_cv_mx32_mpers+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if READELF="$READELF" \
+else case e in #(
+  e) if READELF="$READELF" \
 			    CC="$CC" CPP="$CPP" CPPFLAGS="$CPPFLAGS" \
 			    $srcdir/src/mpers_test.sh mx32 "$cc_flags_mx32"; then
 				st_cv_mx32_mpers=yes
 			 else
 				st_cv_mx32_mpers=no
-			 fi
+			 fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_mx32_mpers" >&5
 printf "%s\n" "$st_cv_mx32_mpers" >&6; }
@@ -17469,8 +17769,8 @@
 if test ${st_cv_mx32_selinux_runtime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  saved_CPPFLAGS="$CPPFLAGS"
+else case e in #(
+  e) saved_CPPFLAGS="$CPPFLAGS"
 				 saved_LDFLAGS="$LDFLAGS_FOR_MX32"
 				 saved_LIBS="$LIBS"
 				 CPPFLAGS="$CPPFLAGS $libselinux_CPPFLAGS"
@@ -17490,21 +17790,24 @@
 if ac_fn_c_try_link "$LINENO"
 then :
   st_cv_mx32_selinux_runtime=yes
-else $as_nop
-  st_cv_mx32_selinux_runtime=no
+else case e in #(
+  e) st_cv_mx32_selinux_runtime=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 				 LIBS="$saved_LIBS"
 				 LDFLAGS_FOR_MX32="$saved_LDFLAGS"
 				 CPPFLAGS="$saved_CPPFLAGS"
-
+				 ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $st_cv_mx32_selinux_runtime" >&5
 printf "%s\n" "$st_cv_mx32_selinux_runtime" >&6; }
 
-else $as_nop
-  st_cv_mx32_selinux_runtime=no
+else case e in #(
+  e) st_cv_mx32_selinux_runtime=no ;;
+esac
 fi
 		if test $st_cv_mx32_mpers = yes; then
 
@@ -17745,28 +18048,30 @@
 
 				# The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
 printf %s "checking size of long... " >&6; }
 if test ${ac_cv_sizeof_long+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
 then :
 
-else $as_nop
-  if test "$ac_cv_type_long" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_long" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (long)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_long=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
 printf "%s\n" "$ac_cv_sizeof_long" >&6; }
@@ -17821,29 +18126,31 @@
 
 				# The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of kernel_long_t" >&5
 printf %s "checking size of kernel_long_t... " >&6; }
 if test ${ac_cv_sizeof_kernel_long_t+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (kernel_long_t))" "ac_cv_sizeof_kernel_long_t"        "#include \"$srcdir/src/kernel_types.h\"
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (kernel_long_t))" "ac_cv_sizeof_kernel_long_t"        "#include \"$srcdir/src/kernel_types.h\"
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_kernel_long_t" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_kernel_long_t" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (kernel_long_t)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_kernel_long_t=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_kernel_long_t" >&5
 printf "%s\n" "$ac_cv_sizeof_kernel_long_t" >&6; }
@@ -17898,29 +18205,31 @@
 
 				# The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# declarations like 'int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of struct msqid64_ds" >&5
 printf %s "checking size of struct msqid64_ds... " >&6; }
 if test ${ac_cv_sizeof_struct_msqid64_ds+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct msqid64_ds))" "ac_cv_sizeof_struct_msqid64_ds"        "#include <linux/msg.h>
+else case e in #(
+  e) if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct msqid64_ds))" "ac_cv_sizeof_struct_msqid64_ds"        "#include <linux/msg.h>
 "
 then :
 
-else $as_nop
-  if test "$ac_cv_type_struct_msqid64_ds" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) if test "$ac_cv_type_struct_msqid64_ds" = yes; then
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (struct msqid64_ds)
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
    else
      ac_cv_sizeof_struct_msqid64_ds=0
-   fi
+   fi ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_msqid64_ds" >&5
 printf "%s\n" "$ac_cv_sizeof_struct_msqid64_ds" >&6; }
@@ -18059,8 +18368,9 @@
 Valid options are: yes, no." "$LINENO" 5
 		;;
 	 esac
-else $as_nop
-  enable_install_tests=no
+else case e in #(
+  e) enable_install_tests=no ;;
+esac
 fi
 
  if test x$enable_install_tests = xyes; then
@@ -18080,8 +18390,9 @@
 if test ${enable_valgrind+y}
 then :
   enableval=$enable_valgrind; enable_valgrind=$enableval
-else $as_nop
-  enable_valgrind=
+else case e in #(
+  e) enable_valgrind= ;;
+esac
 fi
 
 
@@ -18096,8 +18407,8 @@
 if test ${ac_cv_prog_VALGRIND+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$VALGRIND"; then
+else case e in #(
+  e) if test -n "$VALGRIND"; then
   ac_cv_prog_VALGRIND="$VALGRIND" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -18119,7 +18430,8 @@
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 VALGRIND=$ac_cv_prog_VALGRIND
 if test -n "$VALGRIND"; then
@@ -18139,16 +18451,18 @@
 
 				as_fn_error $? "Could not find valgrind; either install it or reconfigure with --disable-valgrind" "$LINENO" 5
 
-else $as_nop
-
+else case e in #(
+  e)
 				enable_valgrind=no
-
+			 ;;
+esac
 fi
 
-else $as_nop
-
+else case e in #(
+  e)
 			enable_valgrind=yes
-
+		 ;;
+esac
 fi
 
 fi
@@ -18172,8 +18486,9 @@
 if test ${enable_valgrind_memcheck+y}
 then :
   enableval=$enable_valgrind_memcheck; enable_valgrind_memcheck=$enableval
-else $as_nop
-  enable_valgrind_memcheck=
+else case e in #(
+  e) enable_valgrind_memcheck= ;;
+esac
 fi
 
 		if test "$enable_valgrind" = "no"
@@ -18188,8 +18503,8 @@
 if test ${ax_cv_valgrind_tool_memcheck+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 				ax_cv_valgrind_tool_memcheck=no
 
 				if `$VALGRIND --tool=memcheck --help >/dev/null 2>&1`
@@ -18198,7 +18513,8 @@
 					ax_cv_valgrind_tool_memcheck=yes
 
 fi
-
+			 ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_valgrind_tool_memcheck" >&5
 printf "%s\n" "$ax_cv_valgrind_tool_memcheck" >&6; }
@@ -18210,16 +18526,18 @@
 
 					as_fn_error $? "Valgrind does not support memcheck; reconfigure with --disable-valgrind-memcheck" "$LINENO" 5
 
-else $as_nop
-
+else case e in #(
+  e)
 					enable_valgrind_memcheck=no
-
+				 ;;
+esac
 fi
 
-else $as_nop
-
+else case e in #(
+  e)
 				enable_valgrind_memcheck=yes
-
+			 ;;
+esac
 fi
 
 fi
@@ -18237,8 +18555,9 @@
 if test ${enable_valgrind_helgrind+y}
 then :
   enableval=$enable_valgrind_helgrind; enable_valgrind_helgrind=$enableval
-else $as_nop
-  enable_valgrind_helgrind=
+else case e in #(
+  e) enable_valgrind_helgrind= ;;
+esac
 fi
 
 		if test "$enable_valgrind" = "no"
@@ -18253,8 +18572,8 @@
 if test ${ax_cv_valgrind_tool_helgrind+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 				ax_cv_valgrind_tool_helgrind=no
 
 				if `$VALGRIND --tool=helgrind --help >/dev/null 2>&1`
@@ -18263,7 +18582,8 @@
 					ax_cv_valgrind_tool_helgrind=yes
 
 fi
-
+			 ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_valgrind_tool_helgrind" >&5
 printf "%s\n" "$ax_cv_valgrind_tool_helgrind" >&6; }
@@ -18275,16 +18595,18 @@
 
 					as_fn_error $? "Valgrind does not support helgrind; reconfigure with --disable-valgrind-helgrind" "$LINENO" 5
 
-else $as_nop
-
+else case e in #(
+  e)
 					enable_valgrind_helgrind=no
-
+				 ;;
+esac
 fi
 
-else $as_nop
-
+else case e in #(
+  e)
 				enable_valgrind_helgrind=yes
-
+			 ;;
+esac
 fi
 
 fi
@@ -18302,8 +18624,9 @@
 if test ${enable_valgrind_drd+y}
 then :
   enableval=$enable_valgrind_drd; enable_valgrind_drd=$enableval
-else $as_nop
-  enable_valgrind_drd=
+else case e in #(
+  e) enable_valgrind_drd= ;;
+esac
 fi
 
 		if test "$enable_valgrind" = "no"
@@ -18318,8 +18641,8 @@
 if test ${ax_cv_valgrind_tool_drd+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 				ax_cv_valgrind_tool_drd=no
 
 				if `$VALGRIND --tool=drd --help >/dev/null 2>&1`
@@ -18328,7 +18651,8 @@
 					ax_cv_valgrind_tool_drd=yes
 
 fi
-
+			 ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_valgrind_tool_drd" >&5
 printf "%s\n" "$ax_cv_valgrind_tool_drd" >&6; }
@@ -18340,16 +18664,18 @@
 
 					as_fn_error $? "Valgrind does not support drd; reconfigure with --disable-valgrind-drd" "$LINENO" 5
 
-else $as_nop
-
+else case e in #(
+  e)
 					enable_valgrind_drd=no
-
+				 ;;
+esac
 fi
 
-else $as_nop
-
+else case e in #(
+  e)
 				enable_valgrind_drd=yes
-
+			 ;;
+esac
 fi
 
 fi
@@ -18367,8 +18693,9 @@
 if test ${enable_valgrind_sgcheck+y}
 then :
   enableval=$enable_valgrind_sgcheck; enable_valgrind_sgcheck=$enableval
-else $as_nop
-  enable_valgrind_sgcheck=
+else case e in #(
+  e) enable_valgrind_sgcheck= ;;
+esac
 fi
 
 		if test "$enable_valgrind" = "no"
@@ -18383,8 +18710,8 @@
 if test ${ax_cv_valgrind_tool_sgcheck+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 				ax_cv_valgrind_tool_sgcheck=no
 
 				if `$VALGRIND --tool=exp-sgcheck --help >/dev/null 2>&1`
@@ -18393,7 +18720,8 @@
 					ax_cv_valgrind_tool_sgcheck=yes
 
 fi
-
+			 ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_valgrind_tool_sgcheck" >&5
 printf "%s\n" "$ax_cv_valgrind_tool_sgcheck" >&6; }
@@ -18405,16 +18733,18 @@
 
 					as_fn_error $? "Valgrind does not support sgcheck; reconfigure with --disable-valgrind-sgcheck" "$LINENO" 5
 
-else $as_nop
-
+else case e in #(
+  e)
 					enable_valgrind_sgcheck=no
-
+				 ;;
+esac
 fi
 
-else $as_nop
-
+else case e in #(
+  e)
 				enable_valgrind_sgcheck=yes
-
+			 ;;
+esac
 fi
 
 fi
@@ -18536,8 +18866,8 @@
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
 #
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# 'ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* 'ac_cv_foo' will be assigned the
 # following values.
 
 _ACEOF
@@ -18567,14 +18897,14 @@
   (set) 2>&1 |
     case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes: double-quote
+      # 'set' does not quote correctly, so add quotes: double-quote
       # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
 	"s/'/'\\\\''/g;
 	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
       ;; #(
     *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      # 'set' quotes correctly as required by POSIX, so do not add quotes.
       sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
       ;;
     esac |
@@ -18765,7 +19095,6 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
@@ -18774,12 +19103,13 @@
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -18851,7 +19181,7 @@
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
@@ -18880,7 +19210,6 @@
 } # as_fn_error
 
 
-
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -18920,11 +19249,12 @@
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -18938,11 +19268,12 @@
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
 
@@ -19025,9 +19356,9 @@
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -19108,10 +19439,12 @@
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 exec 6>&1
@@ -19127,7 +19460,7 @@
 # values after options handling.
 ac_log="
 This file was extended by strace $as_me 6.8, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -19159,7 +19492,7 @@
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files and other configuration actions
+'$as_me' instantiates files and other configuration actions
 from templates according to the current configuration.  Unless the files
 and actions are specified as TAGs, all are instantiated by default.
 
@@ -19196,10 +19529,10 @@
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 strace config.status 6.8
-configured by $0, generated by GNU Autoconf 2.71,
+configured by $0, generated by GNU Autoconf 2.72,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -19261,8 +19594,8 @@
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    as_fn_error $? "ambiguous option: \`$1'
-Try \`$0 --help' for more information.";;
+    as_fn_error $? "ambiguous option: '$1'
+Try '$0 --help' for more information.";;
   --help | --hel | -h )
     printf "%s\n" "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
@@ -19270,8 +19603,8 @@
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error $? "unrecognized option: \`$1'
-Try \`$0 --help' for more information." ;;
+  -*) as_fn_error $? "unrecognized option: '$1'
+Try '$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
@@ -19337,7 +19670,7 @@
     "tests-m32/Makefile") CONFIG_FILES="$CONFIG_FILES tests-m32/Makefile" ;;
     "tests-mx32/Makefile") CONFIG_FILES="$CONFIG_FILES tests-mx32/Makefile" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -19357,7 +19690,7 @@
 # creating and moving files from /tmp can sometimes cause problems.
 # Hook for its removal unless debugging.
 # Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
+# after its creation but before its name has been assigned to '$tmp'.
 $debug ||
 {
   tmp= ac_tmp=
@@ -19370,14 +19703,18 @@
 # Create a (secure) tmp directory for tmp files.
 
 {
-  tmp=`(umask 077 && mktemp -d "./confXXXXXX")` &&
-  test -n "$tmp" && test -d "$tmp"
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
 } || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
 ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
+# This happens for instance with './config.status config.h'.
 if test -n "$CONFIG_FILES"; then
 
 
@@ -19535,13 +19872,13 @@
 
 # Set up the scripts for CONFIG_HEADERS section.
 # No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
+# This happens for instance with './config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
 cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
-# Transform confdefs.h into an awk script `defines.awk', embedded as
+# Transform confdefs.h into an awk script 'defines.awk', embedded as
 # here-document in config.status, that substitutes the proper values into
 # config.h.in to produce config.h.
 
@@ -19651,7 +19988,7 @@
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -19673,19 +20010,19 @@
       -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
+	 # because $ac_f cannot contain ':'.
 	 test -f "$ac_f" ||
 	   case $ac_f in
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+	   as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # Let's still pretend it is 'configure' which instantiates (i.e., don't
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
@@ -19818,7 +20155,7 @@
 esac
 _ACEOF
 
-# Neutralize VPATH when `$srcdir' = `.'.
+# Neutralize VPATH when '$srcdir' = '.'.
 # Shell code in configure.ac might set extrasub.
 # FIXME: do we really want to maintain this feature?
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
@@ -19849,9 +20186,9 @@
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
@@ -20006,15 +20343,15 @@
    (exit $ac_status); } || am_rc=$?
   done
   if test $am_rc -ne 0; then
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "Something went wrong bootstrapping makefile fragments
     for automatic dependency tracking.  If GNU make was not used, consider
     re-running the configure script with MAKE=\"gmake\" (or whatever is
     necessary).  You can also try re-running configure with the
     '--disable-dependency-tracking' option to at least be able to build
     the package (albeit without support for automatic dependency tracking).
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
   fi
   { am_dirpart=; unset am_dirpart;}
   { am_filepart=; unset am_filepart;}