# SliTaz package receipt.

PACKAGE="glibc"
VERSION="2.23"
CATEGORY="meta"
SHORT_DESC="The GNU C libraries. This package is used to compile the libc."
MAINTAINER="pankso@slitaz.org"
LICENSE="GPL2"
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:glib-locale:glibc-dev"

current_version()
{
	wget -O - $(dirname $WGET_URL) 2>/dev/null | \
	sed '/href="glibc-[0-9]/!d;/tar/!d;s|.*>glibc-||;s|.tar.*||' | \
	sort -Vr | sed q
}

# Rules to compile & install the temporary toolchain.
cook_tmp_toolchain()
{
	cd $src
	
	# Glibc Bug Fixes Patch from LFS
	patch -Np1 -i $stuff/glibc-2.14.1-fixes-1.patch
	# Glibc Bug Sort Relocatable Objects Patch
	patch -Np1 -i $stuff/glibc-2.14.1-sort-1.patch
	# Fix a bug that prevents Glibc from building with GCC-4.6.2
	patch -Np1 -i $stuff/glibc-2.14.1-gcc_fix-1.patch
	# GHOST
	patch -Np1 -i $stuff/glibc-2.14.1-CVE-2015-0235.patch

	# 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 -j1 &&
	make -j1 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()
{
	# 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*
	# 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

        # Fix a bug that prevents Glibc from building with GCC-6.3.0
        # https://bugzilla.redhat.com/show_bug.cgi?id=1312963 (-Werror=parentheses)
        # https://sourceware.org/pipermail/libc-alpha/2015-April/059886.html (array-bounds)
        patch -p1 -i $stuff/glibc-2.21-gcc6_fix-1.patch
        # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68024 (patch for style-definition)
        patch -p1 -i $stuff/glibc-2.21-gcc6_fix-2.patch
        # https://gcc.gnu.org/legacy-ml/gcc-patches/2015-11/msg00105.html
        patch -p1 -i $stuff/glibc-2.21-gcc6_fix-3.patch

        # 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

	# Glibc misc Bug Fixes
	#patch -Np1 -i $stuff/glibc-2.14.1-fixes-1.patch
	
	# Glibc Bug Sort Relocatable Objects Patch
	#patch -Np1 -i $stuff/glibc-2.14.1-sort-1.patch
	
	# Fix a bug that prevents Glibc from building with GCC-4.6.2
	#patch -Np1 -i $stuff/glibc-2.14.1-gcc_fix-1.patch
	
	# Revert commit causing issues with crappy DNS servers
	#patch -Np1 -i $stuff/glibc-2.14-revert-4768ae77.patch
	
	# re-export RPC interface until libtirpc is ready as a replacement
	# http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=acee4873 (only fedora branch...)
	#patch -Np1 -i $stuff/glibc-2.14-reexport-rpc-interface.patch
	# http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=bdd816a3 (only fedora branch...)
	#patch -Np1 -i $stuff/glibc-2.14-reinstall-nis-rpc-headers.patch
	# GHOST
	#patch -Np1 -i $stuff/glibc-2.14.1-CVE-2015-0235.patch

        # https://sourceware.org/bugzilla/show_bug.cgi?id=21661
        patch -p1 -i $stuff/glibc-2.23-gcc.patch

	# Update for binutils 2.29, see https://sourceware.org/bugzilla/show_bug.cgi?id=21661
	sed -i 's|obstack_compat;|obstack_compat  __attribute__ ((nocommon));|' malloc/obstack.c

        # Fix unused const variable
        sed -i 's|static const float one=1.0;|static const float __attribute__ ((unused)) one=1.0;|' \
        sysdeps/ieee754/flt-32/s_cosf.c 
        sed -i 's|static const char rcsid\[\] =|static const char __attribute__ ((unused)) rcsid\[\] =|' \
        resolv/base64.c

	# 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
	{ $src/configure \
		--disable-profile \
		--enable-add-ons \
		--enable-kernel=2.6.30 \
		--enable-obsolete-rpc \
		--libexecdir=/usr/lib/glibc \
		--build=$HOST_SYSTEM \
		--host=$HOST_SYSTEM \
		--target=$BUILD_SYSTEM &&
	make -j1 && make install_root=$DESTDIR install
	} || return 1
	for i in $DESTDIR/usr/share/i18n/charmaps/*.gz ; do
		advdef -z4 $i
	done

	# 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

	# check install
	ls $install/lib/
}