# SliTaz package receipt.

PACKAGE="glibc"
VERSION="2.19"
CATEGORY="meta"
SHORT_DESC="The GNU C libraries. This package is used to compile the libc."
MAINTAINER="pankso@slitaz.org"
TARBALL="$PACKAGE-$VERSION.tar.gz"
WEB_SITE="http://www.gnu.org/software/libc/"
WGET_URL="$GNU_MIRROR/$PACKAGE/$TARBALL"

DEPENDS="glibc-base glibc-locale glibc-dev"
BUILD_DEPENDS="linux-api-headers autoconf bash advancecomp"

# Genpkg order for tazwok.
COOK_OPT="genpkg=glibc-base:glibc-extra-samba:glib-locale:glibc-dev"
	
# Rules to compile & install the temporary toolchain.
cook_tmp_toolchain()
{
	cd $src

	# Build in a separate directory.
	mkdir ../glibc-build && cd ../glibc-build

	# glibc no longer support i386, so use -march=i486 for better compatibility.
	# If i686 ???
	unset CFLAGS CXXFLAGS
	case $ARCH in
		i386|i486)
			echo "CFLAGS += -O2 -march=i486 -mtune=i486" > configparms ;;
		*)
			echo "CFLAGS += -O2 -march=$ARCH -mtune=$ARCH" > configparms ;;
	esac

	{ $src/configure \
		--host=$HOST_SYSTEM \
		--build=$($src/scripts/config.guess) \
		--disable-profile --enable-add-ons \
		--enable-kernel=2.6.30 --with-headers=/tools/include \
		libc_cv_forced_unwind=yes libc_cv_c_cleanup=yes &&
	make &&
	make install
	} || return 1

	# Link compiler to this new glibc.
	SPECS=`dirname $($HOST_SYSTEM-gcc -print-libgcc-file-name)`/specs
	$HOST_SYSTEM-gcc -dumpspecs | sed \
		-e 's@/lib\(64\)\?/ld@/tools&@g' \
		-e "/^\*cpp:$/{n;s,$, -isystem /tools/include,}" > $SPECS 
	unset SPECS
}

# Rules to configure and make the package.
compile_rules()
{
	cd $src

	# SliTaz is a Busybox based OS, why we so small and fast. Using gawk by
	# default to build package will not ensure package work with Busybox awk
	# and so should NOT be use to cook.
	if [ -x /usr/bin/cook ]; then
		[ -d "/var/lib/tazpkg/installed/gawk" ] || tazpkg get-install gawk
	fi

	# Make 4.x support...
	sed -i 's/3\.79/4.* | &/' configure*
	# GCC > 9 support...
	sed -i 's/4.\[4-9\]/10.* | &/' configure
		
	# Fixes and patches from LFS, Redhat
	sed -i -e 's/"db1"/& \&\& $name ne "nss_test1"/' scripts/test-installation.pl
	sed -i 's|@BASH@|/bin/bash|' elf/ldd.bash.in

	# Glibc misc Bug Fixes
	# fix for {linux,sys}/xattr.h incompatibility - commit fdbe8eae
	patch -p1 -i $stuff/glibc-2.19-xattr_header.patch

	# fix issues in sin/cos slow path calculation - commit ffe768a9
	patch -p1 -i $stuff/glibc-2.19-fix-sign-in-bsloww1-input.patch

	# fix tzselect with missing TZDIR - commit 893b4f37/c72399fb
	patch -p1 -i $stuff/glibc-2.19-tzselect-default.patch

	# Fix a stack imbalance that occurs under some conditions:
	sed -i '195,213 s/PRIVATE_FUTEX/FUTEX_CLOCK_REALTIME/' \
		nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S \
		nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S

	# Glibc needs ld.so.conf in the install destdir.
	mkdir -p $WOK/$PACKAGE/install/etc
	touch $WOK/$PACKAGE/install/etc/ld.so.conf
	mkdir ../glibc-build && cd ../glibc-build
	
	# Read the INSTALL file in glibc. Also Glibc dont build with -Os flag.
	# --enale-kernel use latest SliTaz Kernel version. From Glibc INSTALL:
	# "The higher the VERSION number is, the less compatibility code is
	# added, and the faster the code gets."
	unset CFLAGS CXXFLAGS
	case "$ARCH" in
		i386|i486)
			echo "CFLAGS += -O2 -march=i486 -mtune=i486" > configparms ;;
		*)
			echo "CFLAGS += -O2 -march=$ARCH -mtune=$ARCH" > configparms ;;
	esac
	{ $src/configure \
		--disable-profile \
		--enable-add-ons \
		--enable-kernel=2.6.30 \
		--libexecdir=/usr/lib/glibc \
		--build=$HOST_SYSTEM \
		--host=$HOST_SYSTEM &&
	make && make install_root=$DESTDIR install
	} || return 1

	# If temporary toolchain was previously used, switch to regular toolchain.
	[ -d /tools ] || return
	mv /tools/bin/ld /tools/bin/ld-old
	mv /tools/$(gcc -dumpmachine)/bin/ld /tools/$(gcc -dumpmachine)/bin/ld-old
	mv /tools/bin/ld-new /tools/bin/ld
	ln -s /tools/bin/ld /tools/$(gcc -dumpmachine)/bin/ld
	gcc -dumpspecs | sed -e 's@/tools@@g' \
		-e '/\*startfile_prefix_spec:/{n;s@.*@/usr/lib/ @}' \
		-e '/\*cpp:/{n;s@$@ -isystem /usr/include@}' > \
		`dirname $(gcc --print-libgcc-file-name)`/specs
}

# Rules to gen a SliTaz package suitable for Tazpkg.
genpkg_rules()
{
	LOCALE=""
	mkdir -p $fs/var

	# Remove build directory.
	rm -rf $WOK/$PACKAGE/source/$PACKAGE-build
	rm -rf $WOK/$PACKAGE/$PACKAGE-build
}