# --- T2-COPYRIGHT-NOTE-BEGIN ---
# T2 SDE: package/*/libtool/parse-config
# Copyright (C) 2006 - 2023 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 program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2.
# --- T2-COPYRIGHT-NOTE-END ---

# On cross-builds libtool gets everything, really everything that is
# possible mess up, messed up - seriously. Just not installing the
# annoying .la-hell already helps.
#
libtool_remove_la() {
	# A simple:
	# var_append INSTALL_WRAPPER_FILTER '|' "sed -e 's,.*$root/.*lib.*\.la,/tmp/weg.la,'"
	# didn't cut it, as some packages run some libtool finalization after the files
	# got installed, and error out if the files are translated away, ...

	grep '\.la$' $builddir/flist.txt |
	while read f; do
		rm -fv "$root/$f"
	done
	var_append flistdel '|' '.*\.la'
}
#atstage native ||
hook_add postflist 5 libtool_remove_la

# Some packges have outdated libtool that e.g. does not handle lib64. The
# LIBTOOL-QUIRK flag allows automated updating of those files.

libtool_fixup() {
	if atstage native; then
		pref=$root
	else
		pref=$base/build/$SDECFG_ID/TOOLCHAIN/cross
	fi
	
	[ -f configure.in -o -f configure.ac ] && libtoolize -c -f

	find -name libtool -o -name ltmain.sh | while read fn; do
		case $fn in
			*libtool) cp -fv $pref/usr/bin/libtool $fn ;;
			*) cp -fv $pref/usr/share/libtool/ltmain.sh $fn ;;
		esac
	done
}

# Many libtool and ltmain files contain an error which is hostile in
# our build environment:
# - on systems where the libdir is not */lib, libtool still searches
#   /lib and /usr/lib first
# - removal of temporary paths during library search does not work,
#   this concerns mainly dependency_libs in .la files where build system
#   paths and other things survive
#
# We try to correct any libtool and ltmain file now:
libtool_correct_files() {
	# do not do anything if we're outside builddir (like sysfiles is)
	[[ ${PWD//src.$pkg.$config.$id/} = $PWD ]] && return

	# find all libtool etal files, and sed them
	find -type f -name "libtool*" -o -name "ltmain*" -o -name "ltconfig*" -o -name "ltcf*" | while read f; do
		mv $f $f.ltcorrect
		sed    -e 's,sys_lib_dlsearch_path_spec="/lib .*$lt_ld_extra.*,sys_lib_dlsearch_path_spec="$lt_ld_extra",' \
		       -e "s,'s% \$path % %g',\"s% \$path % %g\",g" -e "s,'s% -L\$path % %g',\"s% -L\$path % %g\",g" \
		       -e 's,echo "$\(lib_search_path\|deplibs\|dependency_libs\) ",echo " $\1 ",g' \
		       $f.ltcorrect > $f
		touch -r $f.ltcorrect $f

		# previous sed does (per line):
		# 1. Dynamic library search path
		#   libtool.m4/ltmain.sh use the ld.so.conf list (lt_ld_extra) of path to search for dynamic libs,
		#   that variable is, however prefixed with "-L/lib -L/usr/lib" statically, the latter paths are
		#   removed by the sed expression
		# 2. Wrong quotes around sed expression
		#   A cleanup routine for temporary paths (grep for notinst_path) in libtool*/ltmain.* removes
		#   paths that should not appear after installation of the library. For this to work the "$path"
		#   variable must be evaluated (which is not possible with ' around it)
		# 3. Sed expects a leading whitespace
		#   To be sure that the cleaning process (mentioned in 2.) works also for the first argument,
		#   a " " is prepended before it is run through the sed expression (see 2.).

		diff $f.ltcorrect $f >/dev/null || echo_warning "Corrected $f"
		rm -f $f.ltcorrect
	done
}

libtool_final_check() {
	local ld=${libdir##*/}
	# do not do anything if we're outside builddir (like sysfiles is)
	[[ ${PWD//src.$pkg.$config.$id/} = $PWD ]] && return
	if [ -f libtool -a -f $root/usr/bin/libtool ] &&
	   ! egrep -q "sys_lib_search_path_spec=.* /usr/$ld " libtool
	then
		echo_warning "Overwriting libtool: configure broken beyond believe"
		cp $root/usr/bin/libtool .
		echo -e "#!/bin/true" > missing
	fi
}

if ! atstage toolchain && hasflag LIBTOOL-QUIRK; then
	hook_add preconf 8 libtool_fixup
elif ! hasflag NO-LIBTOOL-FIX; then
	hook_add preconf 8 libtool_correct_files
fi

#hook_add premake 7 libtool_final_check