# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=gcc
pkgver=4.7.2
_piepatchver=0.5.3
_specs_ver=0.2.0
_specs_gcc_ver=4.4.3

_uclibc_abiver=0.9.32

pkgrel=0
pkgdesc="The GNU Compiler Collection"
url="http://gcc.gnu.org"
arch="all"
license="GPL LGPL"
depends="binutils libgomp libobjc"
makedepends="bison flex gmp-dev mpfr-dev texinfo mpc1-dev gawk zlib-dev zip
	cloog-dev"
subpackages="$pkgname-doc libstdc++:libcxx g++:gpp libgcc libgomp"
replaces="libstdc++"

# disable Go til we have getcontex/setcontext
LANG_GO=off

if [ -n "$BOOTSTRAP" ]; then
	LANG_OBJC=off
	LANG_JAVA=off
	LANG_FORTRAN=off
fi

_languages=c,c++
if [ "$LANG_OBJC" != "off" ]; then
	subpackages="$subpackages libobjc"
	_languages="$_languages,objc"
fi
if [ "$LANG_JAVA" != "off" ]; then
	subpackages="$subpackages $pkgname-java libgcj"
	makedepends="$makedepends paxctl"
	_languages="$_languages,java"
fi
if [ "$LANG_GO" != "off" ]; then
	subpackages="$subpackages $pkgname-go libgo"
	_languages="$_languages,go"
fi
if [ "$LANG_FORTRAN" != "off" ]; then
	subpackages="$subpackages gfortran libgfortran libquadmath"
	_languages="$_languages,fortran"
fi

source="ftp://gcc.gnu.org/pub/gcc/releases/gcc-$pkgver/gcc-$pkgver.tar.bz2
	http://distfiles.gentoo.org/distfiles/gcc-4.7.1-piepatches-v${_piepatchver}.tar.bz2
	http://distfiles.gentoo.org/distfiles/gcc-$_specs_gcc_ver-specs-$_specs_ver.tar.bz2
	ftp://sourceware.org/pub/java/ecj-latest.jar
	
	11_all_default-warn-format-security.patch
	12_all_default-warn-trampolines.patch
	15_all_libgomp-Werror.patch
	16_all_libgo-Werror-pr53679.patch
	29_all_arm_armv4t-default.patch
	49_all_gcc-4.7-x86-libitm-pr52695.patch
	51_all_libiberty-pic.patch
	67_all_gcc-poison-system-directories.patch
	74_all_gcc47_cloog-dl.patch

	gcc-spec-env.patch
	pt_gnu_eh_frame.patch
	uclibc-getipinfo.patch
	gcc-4.7-dynamic-linker.patch
	gcc-4.6-pr32219.patch
	boehem-gc-uclibc.patch
	gcc-pure64.patch
	gcc-go.patch
	"

# we build out-of-tree
_gccdir="$srcdir"/gcc-$pkgver
_builddir="$srcdir/build"

prepare() {
	cd "$_gccdir"
	# verify we have set CHOST
	if [ -z "$CHOST" ]; then
		error "CHOST not set"
		return 1
	fi

	# PIE patches from gentoo
	# thanks to Zorry for hard work on those patches
	for i in "$srcdir"/piepatch/*.patch; do
		msg "Applying $i"
		patch -t -p0 -i $i || patch -t -p1 -i $i || return 1
	done

	# Gentoo and uclibc patches
	_err=
	for i in $source; do
		case "$i" in
		*.patch)
			msg "Applying $i"
			patch -p1 -i "$srcdir"/$i || _err="$_err $i"
			;;
		esac
	done
	
	if [ -n "$_err" ]; then
		error "The following patches failed:"
		for i in $_err; do
			echo "  $i"
		done
		return 1
	fi

	#PR33200
	sed -i 's/use_fixproto=yes/:/' gcc/config.gcc || return 1

	# enable hardened cflags by default
	# building gcc wih PIE seem to hit some strange bug. we probably run
	# out of some resource. so we disable PIE for gcc while enabling it
	# by default for everything else.
	local _hard_cflags="-DEFAULT_PIE_SSP -DEFAULT_RELRO -DEFAULT_BIND_NOW"
	sed -e "/^ALL_CFLAGS/iHARD_CFLAGS = ${_hard_cflags}" \
		-e 's|^ALL_CFLAGS = |ALL_CFLAGS = $(HARD_CFLAGS) |' \
		-e 's|^ALL_CXXFLAGS = |ALL_CXXFLAGS = $(HARD_CFLAGS) |' \
		-i gcc/Makefile.in || return 1

	# see http://gcc.gnu.org/ml/java/2008-04/msg00027.html
	mv "$srcdir"/ecj-latest.jar ecj.jar
	
	echo ${pkgver} > gcc/BASE-VER
}

build() {
	local _dynamic_linker=
	cd "$_gccdir"
	export CFLAGS="-fno-stack-protector"
	[ -z "$CBUILD" ] && CBUILD="$CHOST"
	[ -z "$CTARGET" ] && CTARGET="$CHOST"

	case "$CHOST" in
		x86_64-*-uclibc)
			_dynamic_linker="--with-dynamic-linker=ld64-uClibc.so.$_uclibc_abiver"
			;;
		*-uclibc)
			_dynamic_linker="--with-dynamic-linker=ld-uClibc.so.$_uclibc_abiver"
			;;
		*)	_dynamic_linker=
			;;
	esac

	# --enable-target-optspace is broken on powerpc
	if [ "$CARCH" != "powerpc" ]; then
		_target_optspace="--enable-target-optspace"
	fi

	msg "Building the following:"
	echo ""
	echo "  CBUILD=$CBUILD"
	echo "  CHOST=$CHOST"
	echo "  CTARGET=$CTARGET"
	echo "  languages=$_languages"
	echo "  dynamic_linker=$_dynamic_linker"
	echo "  target_optspace=$_target_optspace"
	echo ""

	mkdir -p "$_builddir"
	cd "$_builddir"
	"$_gccdir"/configure --prefix=/usr \
		--mandir=/usr/share/man \
		--infodir=/usr/share/info \
		--build=${CBUILD} \
		--host=${CHOST} \
		--target=${CTARGET} \
		--with-pkgversion="Alpine ${pkgver}-r${pkgrel}" \
		--disable-altivec \
		--disable-build-with-cxx \
		--disable-checking \
		--disable-fixed-point \
		--disable-libssp \
		--disable-libstdcxx-pch \
		--disable-multilib \
		--disable-nls \
		--disable-werror \
		--enable-__cxa_atexit \
		--enable-cld \
		--enable-esp \
		--enable-cloog-backend \
		--enable-languages=$_languages \
		--enable-shared \
		$_target_optspace \
		--enable-tls \
		--enable-threads \
		$_dynamic_linker \
		--with-dynamic-linker-prefix=/lib \
		--with-system-zlib \
		--without-system-libunwind \
		|| return 1

	make || return 1
}

package() {
	cd "$_builddir"
	make -j1 DESTDIR="${pkgdir}" install || return 1
	find "$pkgdir" -name '*.la' -delete || return 1

	ln -s gcc "$pkgdir"/usr/bin/cc

	# binutils provides libiberty.a
	rm -f "$pkgdir"/usr/lib/libiberty.a

	# install the specs
	cd "$srcdir"/specs
	install -d "$pkgdir"/usr/share/gcc
	for i in *.specs; do
		install -m644 $i "$pkgdir"/usr/share/gcc/$i || return 1
	done

	# we dont support gcj -static
	# and saving 35MB is not bad.
	find "$pkgdir" -name libgcj.a -o -name libgtkpeer.a \
		-o -name libgjsmalsa.a -o -name libgcj-tools.a \
		-o -name libjvm.a -o -name libgij.a -o -name libgcj_bc.a \
		-o -name libjavamath.a \
		| xargs rm -f \
		|| return 1
	
	[ "$LANG_JAVA" = "on" ] && \
		sed -i -e 's/lib: /&%{static:%eJava programs cannot be linked statically}/' \
		"$pkdir"/usr/lib/libgcj.spec

	# remove ffi
	rm "$pkgdir"/usr/lib/libffi* "$pkgdir"/usr/share/man/man3/ffi* \
		|| return 1
	find "$pkgdir" -name 'ffi*.h' | xargs rm -f

	mkdir -p "$pkgdir"/usr/share/gdb/python/auto-load/usr/lib
	mv "$pkgdir"/usr/lib/*-gdb.py \
		"$pkgdir"/usr/share/gdb/python/auto-load/usr/lib/

	paxctl -c -pmrs "$pkgdir"/usr/libexec/gcc/*/*/cc1 || return 1
}

libcxx() {
	pkgdesc="GNU C++ standard runtime library"
	depends=
	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/libstdc++.so.* "$subpkgdir"/usr/lib/
}

gpp() {
	pkgdesc="GNU C++ standard library and compiler"
	depends="libstdc++"
	local libexec=usr/libexec/gcc/${CHOST:-$_chost}/$pkgver
	mkdir -p "$subpkgdir/$libexec" \
		"$subpkgdir"/usr/bin \
		"$subpkgdir"/usr/include \
		"$subpkgdir"/usr/lib \

	mv "$pkgdir/$libexec/cc1plus" "$subpkgdir/$libexec/"
	paxctl -c -pmrs "$subpkgdir/$libexec/cc1plus" || return 1

	mv "$pkgdir"/usr/lib/*++* "$subpkgdir"/usr/lib/
	mv "$pkgdir"/usr/include/c++ "$subpkgdir"/usr/include/
	mv "$pkgdir"/usr/bin/*++ "$subpkgdir"/usr/bin/
}

libobjc() {
	pkgdesc="GNU ObjectiveC library"
	replaces="objc"
	mkdir -p "$subpkgdir"/usr/lib

	mv "$pkgdir"/usr/lib/*objc* "$subpkgdir"/usr/lib/
}

libgcc() {
	pkgdesc="GNU C compiler runtime libraries"
	depends=
	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/libgcc_s.so.* "$subpkgdir"/usr/lib/
}

libgomp() {
	pkgdesc="GCC shared-memory parallel programming API library"
	depends=
	replaces="gcc"
	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/libgomp.so.* "$subpkgdir"/usr/lib/
}

java() {
	pkgdesc="Java support for GCC"
	depends="zlib-dev"
	paxctl -c -pm "$pkgdir"/usr/libexec/gcc/*/*/ecj1 || return 1
	mkdir -p "$subpkgdir"/usr/bin "$subpkgdir"/usr/lib
	cd "$pkgdir"/usr/bin
	mv gcj gcj-dbtool gjavah gcjh jcf-dump "$subpkgdir"/usr/bin/
	cd "$pkgdir"
	for i in $(find usr/ -name ecj1 -o -name jc1 -o -name jvgenmain); do
		mkdir -p "$subpkgdir"/${i%/*}
		mv "$pkgdir"/$i "$subpkgdir"/$i || return 1
	done
	for i in "$pkgdir"/usr/lib/libgcj*.so; do
		if [ -L "$i" ]; then
			mv "$i" "$subpkgdir"/usr/lib/
		fi
	done
	mv \
		"$pkgdir"/usr/lib/libgij.so \
		"$pkgdir"/usr/lib/libgcj.spec \
		"$subpkgdir"/usr/lib/
}

libgcj() {
	pkgdesc="Java runtime library for gcc"
	# libgcj_bc.so moved from gcc-java to libgcj
	replaces="gcc-java"
	mkdir -p "$subpkgdir"/usr/bin
	cd "$pkgdir"/usr/bin
	paxctl -c -pmsE "$pkgdir"/usr/bin/gij || return 1
	mv aot-compile gappletviewer gc-analyze gij gjar gjarsigner gkeytool\
		gnative2ascii gorbd grmic grmid grmiregistry gserialver \
		gtnameserv i486-alpine-linux-uclibc-gcj jv-convert \
		rebuild-gcj-db \
		"$subpkgdir"/usr/bin/
	cd "$pkgdir"
	for i in $(find usr/lib -name jc1 -o -name jvgenmain); do
		mkdir -p "$subpkgdir"/${i%/*}
		mv "$pkgdir"/$i "$subpkgdir"/$i || return 1
	done
	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/gcj-* \
		"$pkgdir"/usr/lib/libgcj_bc.so \
		"$pkgdir"/usr/lib/libgcj*.so.* \
		"$pkgdir"/usr/lib/libgij.so.* \
		"$pkgdir"/usr/lib/logging.properties \
		"$pkgdir"/usr/lib/security \
		"$subpkgdir"/usr/lib/ \
		|| return 1

	mkdir -p "$subpkgdir"/usr/share/
	mv "$pkgdir"/usr/share/java "$subpkgdir"/usr/share/
}

libgo() {
	pkgdesc="Go runtime library for GCC"
	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/libgo.so.* "$subpkgdir"/usr/lib/
}

go() {
	pkgdesc="Go support for GCC"
	depends="libgo"
	local libexec=usr/libexec/gcc/${CHOST:-$_chost}/$pkgver
	mkdir -p "$subpkgdir"/$libexec \
		"$subpkgdir"/usr/lib \
		"$subpkgdir"/usr/bin || return 1
	mv "$pkgdir"/usr/lib/go "$subpkgdir"/usr/lib/ || return 1
	mv "$pkgdir"/usr/bin/*gccgo "$subpkgdir"/usr/bin/ || return 1
	mv "$pkgdir"/$libexec/go1 "$subpkgdir"/$libexec/ || return 1
	mv "$pkgdir"/usr/lib/libgo.a \
		"$pkgdir"/usr/lib/libgo.so \
		"$pkgdir"/usr/lib/libgobegin.a \
		"$subpkgdir"/usr/lib/ || return 1
}

libgfortran() {
	pkgdesc="Fortran runtime library for GCC"
	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/libgfortran.so.* "$subpkgdir"/usr/lib/
}

libquadmath() {
	replaces="gcc"
	pkgdesc="128-bit math library for GCC"
	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/libquadmath.so.* "$subpkgdir"/usr/lib/
}

gfortran() {
	pkgdesc="GNU Fortran Compiler"
	depends="$depends libgfortran libquadmath"
	replaces="gcc"
	local libexec=usr/libexec/gcc/${CHOST:-$_chost}/$pkgver
	local gcclibs=usr/lib/gcc/${CHOST:-$_chost}/$pkgver
	mkdir -p "$subpkgdir"/$libexec \
		"$subpkgdir"/$gcclibs \
		"$subpkgdir"/usr/lib \
		"$subpkgdir"/usr/bin || return 1
	mv "$pkgdir"/usr/bin/*gfortran "$subpkgdir"/usr/bin/ || return 1
	mv "$pkgdir"/usr/lib/libgfortran.a \
		"$pkgdir"/usr/lib/libgfortran.so \
		"$pkgdir"/usr/lib/libquadmath.a \
		"$pkgdir"/usr/lib/libquadmath.so \
		"$subpkgdir"/usr/lib/ || return 1
	mv "$pkgdir"/$libexec/f951 \
		"$subpkgdir"/$libexec
	mv "$pkgdir"/$gcclibs/libgfortranbegin.a \
		"$subpkgdir"/$gcclibs
}

md5sums="cc308a0891e778cfda7a151ab8a6e762  gcc-4.7.2.tar.bz2
2e1d99664efcdbd86549a40ddf37d405  gcc-4.7.1-piepatches-v0.5.3.tar.bz2
441c76504e1d97170117c294e65c7a72  gcc-4.4.3-specs-0.2.0.tar.bz2
d7cd6a27c8801e66cbaa964a039ecfdb  ecj-latest.jar
34e4a0260e9dbd434ac84b9dda381240  11_all_default-warn-format-security.patch
1570f30f65f1c4941d2bd690a7148836  12_all_default-warn-trampolines.patch
6862cb5268fef68a4a1906e0c4ea0d46  15_all_libgomp-Werror.patch
2a6a0be54c283c311a39bba359cc01f4  16_all_libgo-Werror-pr53679.patch
681499caf97fbdb4d5c97e312cddf47c  29_all_arm_armv4t-default.patch
4e35639c74fe4b6111f74a91bb3d52a8  49_all_gcc-4.7-x86-libitm-pr52695.patch
d8692c56f04b92667096f59d843e95c5  51_all_libiberty-pic.patch
406fc6f29ab3d746eaef0202c50fd7e9  67_all_gcc-poison-system-directories.patch
f24f07ed008324eaecb0f75417c99116  74_all_gcc47_cloog-dl.patch
a695d7648509b4f8e18b389a19e6037c  gcc-spec-env.patch
ab83248e10b2bf4b3d9240de0fefb52b  pt_gnu_eh_frame.patch
6cc2385c5bbd6d0da6eaedd53c8bf547  uclibc-getipinfo.patch
ac11128f201ee00287f8852697cb86a6  gcc-4.7-dynamic-linker.patch
32e8e4c0e23ed8f5de95a591cb30f1da  gcc-4.6-pr32219.patch
2c6cb49bb9bfd8b6e690222e66ccc901  boehem-gc-uclibc.patch
94c36cc724f5c5d6c8cb8650195ee83d  gcc-pure64.patch
c94014ece84407a36d239417a2bad25d  gcc-go.patch"