# --- T2-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# 
# T2 SDE: package/.../glibc/glibc.conf
# Copyright (C) 2004 - 2010 The T2 SDE Project
# 
# 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 as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- T2-COPYRIGHT-NOTE-END ---

# overwrite prefix to not point to the tools, but the real root for the headers
if atstage toolchain; then
	# hack due to sane variable not available and prefix is tools prefix
	# -ReneR
	confopt="--prefix=$base/build/$SDECFG_ID/usr \
	         --with-headers=$base/build/$SDECFG_ID/usr/include \$extraconfopt"
	includedir="/../../usr/include"

	# MIPS injects -mabi - the host CC does not know about it for header gen
	var_append SYSCC_WRAPPER_REMOVE ' ' '-mabi*'
	var_append SYSCPP_WRAPPER_REMOVE ' ' '-mabi*'
else
	var_append confopt " " "--with-headers=$root/usr/include"
fi

# TODO: bind to linux-header version, .22 breaks ppc due private_futex
var_append confopt " " "--enable-kernel=2.6.16"
# TODO: wire up "--without-fp"

# use at least "-O" when build without optimisation for debugging ...
var_remove GCC_WRAPPER_INSERT ' ' '-O0'
var_insert GCC_WRAPPER_INSERT ' ' '-O'
var_remove SYSGCC_WRAPPER_INSERT ' ' '-O0'

# On Mips64 and ARM the following fails unless we build with: -fgnu89-inline
# "sysdeps/ieee754/dbl-64/s_copysign.c:27: error: redefinition of '__copysign'"
[ $arch = mips64 -o $arch = arm ] && var_insert GCC_WRAPPER_INSERT ' ' '-fgnu89-inline'

# does currently not inline all necessary with -Os
# glibc-2.7/objdir/libc_pic.os: In function `faccessat': (.text+0x7bfaf): undefined reference to `fstatat64'
GCC_WRAPPER_INSERT="${GCC_WRAPPER_INSERT//-Os/-O2}"

# glibc does not like -ffast-math
var_remove GCC_WRAPPER_APPEND ' ' '-ffast-math'
var_remove GCC_WRAPPER_INSERT ' ' '-ffast-math'

# We must use an 'objdir' directory for building glibc
# Disable glibc internal debuging but build debuging and profile
# code so we can use this glibc to debug other programs.

hook_add preconf 3 "mkdir -p objdir; cd objdir"
configprefix='CFLAGS="$CFLAGS -g -DNDEBUG=1"'
configscript="../configure"

var_append confopt " " "--with-gnu-binutils --build=${arch_build} --host=${arch_target}"

# toolchain and cross needs some guidance
if ! atstage native; then
	hook_add preconf 3 "echo 'libc_cv_forced_unwind=yes
libc_cv_c_cleanup=yes
libc_cv_gcc_exceptions=yes
ac_cv_header_cpuid_h=yes' >> config.cache"
fi

if ! atstage native; then
	var_append confopt " " "--without-gd"
elif pkginstalled libgd; then
	var_append confopt " " "--with-gd=/usr --with-gd-lib=/usr/lib --with-gd-include=/usr/include"
fi

# control whether to use nptl - if supported by the architecture ...
if [ $SDECFG_PKG_GLIBC_TLS = 1 ]; then
	var_append extraconfopt " " \
	           "--enable-add-ons=nptl,ports --with-tls --with-__thread" #,libidn
else    
	var_append extraconfopt " " \
	           "--enable-add-ons=linuxthreads --without-__thread --disable-sanity-checks"
	[[ $arch = mips* ]] && var_append extraconfopt " " "--without-tls"
fi

# control whether to include profiling support 
if [ $SDECFG_PKG_GLIBC_ENABLE_PROFILE = 1 ] ; then
	var_append extraconfopt " " "--enable-profile"
else                              
	var_append extraconfopt " " "--disable-profile"
fi

var_append makeopt " " "slibdir=/\$slibdir"
var_append makeinstopt " " "slibdir=/\$slibdir install_root=\$root"

glibc_prepatch() {
	for tarball in `match_source_file -p ports` \
	               `match_source_file -p linuxthread` \
	               `match_source_file -p libidn`
	do
		tar $taropt $tarball

		# rename without surrounding glibc-*-version
		tarball=${tarball##*/}; tarball=${tarball#*-}; tarball=${tarball%%-*}
		mv glibc-${tarball}-* ${tarball}

		# remove CVS from the newly extracted files, glibc tries to
		# automatically commit newly generated files :-!
		find $tarball -name CVS | xargs rm -rfv
	done

	mkdir -p $root$includedir/gnu/

	if [ $pkg == glibc ]; then
		# touch is not enough to add it, "echo -n "" >>" neither
		addStub() { for f; do dd if=/dev/null of="$f" count=0; done }
		addStub $root$includedir/gnu/stubs.h
		if [ $slibdir = lib64 ]; then
			addStub $root$includedir/gnu/stubs{,-32,-64}.h
		fi
	fi
}

glibc_postmake()
{
	if atstage toolchain; then
	  cp -v ../include/features.h $root$includedir
	  mkdir -p $includedir/{bits,gnu}
	  [ -e $root$includedir/bits/stdio_lim.h ] ||
	  touch $root$includedir/bits/stdio_lim.h
	  return
	fi

	ln -sf libbsd-compat.a $root/usr/$slibdir/libbsd.a
	
	# Misc. stuff
	#
	if atstage native; then
		# install locales and linuxthread manpages
		eval $MAKE localedata/install-locales
		cp ../localedata/SUPPORTED $root/usr/share/i18n/

		if [ $SDECFG_PKG_GLIBC_TLS != 1 ]; then
			mkdir -p $root/usr/share/man/man3
			if [ -f /usr/bin/perl ] ; then
			  eval $MAKE -C ../linuxthreads/man \
				MANDIR=$root/usr/share/man/man3 all install
			fi
	
			# copy linuxthreads and crypt documentation
			cp ../linuxthreads/ChangeLog   $docdir/ChangeLog.threads
			cp ../linuxthreads/Changes     $docdir/Changes.threads
			cp ../linuxthreads/README      $docdir/README.threads
			cp ../linuxthreads/FAQ.html    $docdir/FAQ-threads.html
			cp -r ../linuxthreads/Examples $docdir/examples.threads
		fi
	else
		# at least prepare the locale dir
		mkdir -p $root$libdir/locale
	fi
	cp ../crypt/README.ufc-crypt $root$docdir/README.crypt

	# NSCD Init script and config
	#
	cp $confdir/{nscd,nsswitch}.conf $root/etc/

	# Install ld.so.conf
	#
	if [ $slibdir = lib64 ] ; then
		cat > $root/etc/ld.so.conf <<-EOT
		/lib64
		/lib
		/usr/lib64
		/usr/lib
		/usr/X11/lib64
		/usr/X11/lib
		/opt/*/lib64
		/opt/*/lib
		/usr/local/lib64
		/usr/local/lib
EOT
	else
		cat > $root/etc/ld.so.conf <<-EOT
		/lib
		/usr/lib
		/usr/X11/lib
		/opt/*/lib
		/usr/local/lib
EOT
	fi

	# Move 'ldconfig' and 'sln' binaries
	#
	if [ -f "$root/usr/sbin/ldconfig" ] ; then
		mv -v $root/usr/sbin/ldconfig $root/sbin/ldconfig
	fi
	if [ -f "$root/usr/sbin/sln" ] ; then
		mv -v $root/usr/sbin/sln $root/sbin/sln
	fi

	# Create /lib/ld-lsb.so.1 symlink
	#
	if [ -f $root/$slibdir/ld-linux-$arch_machine.so.2 ] ; then
		ln -vfs ld-linux-$arch_machine.so.2 $root/$slibdir/ld-lsb.so.1
	elif [ -f $root/$slibdir/ld-linux.so.2 ] ; then
		ln -vfs ld-linux.so.2 $root/$slibdir/ld-lsb.so.1
	fi
}

# in stage 0 we only extract the headers and all is a bit easier ...
if atstage toolchain; then
	makeopt=
	makeinstopt="-k cross-compiling=yes install-headers"
fi

[[ $libdir = *lib64 ]] && slibdir=lib64 || slibdir=lib

#if atstage cross; then
#	var_append patchfiles " " $confdir/no_path_in_glibcso.diff
#fi

hook_add prepatch 3 "glibc_prepatch"
hook_add postmake 5 "glibc_postmake"