# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-libs/uclibc/uclibc-9999.ebuild,v 1.4 2004/09/06 19:07:39 ciaranm Exp $

ECVS_SERVER="uclibc.org:/var/cvs"
ECVS_MODULE="uClibc"
inherit eutils flag-o-matic gcc cvs

MY_PN="${PN/ucl/uCl}"
DESCRIPTION="C library for developing embedded Linux systems"
HOMEPAGE="http://www.uclibc.org/"
SRC_URI=""

LICENSE="LGPL-2"
SLOT="0"
KEYWORDS="-*"
IUSE="build hardened ipv6 static debug" # nls is not supported yet
RESTRICT="nostrip"

DEPEND="sys-devel/gcc"
RDEPEND=""
PROVIDE="virtual/glibc virtual/libc"

S=${WORKDIR}/${ECVS_MODULE}

src_unpack() {
	cvs_src_unpack
	unpack ${A}
	cd ${S}

	cp ${FILESDIR}/0.9.26/ssp.c ${S}/libc/sysdeps/linux/common/ \
		|| die "failed to copy ssp.c to ${S}/libc/sysdeps/linux/common/"
	# gcc 3.4 nukes ssp without this patch
	if [ "`gcc-major-version`" -eq "3" -a "`gcc-minor-version`" -ge "4" ]
	then
		epatch ${FILESDIR}/0.9.26/uclibc-0.9.26-ssp-gcc34-after-frandom.patch
	fi

	cp -rf ${FILESDIR}/cvs ${S}/patch
	# for now we remove relro/now, no support for relro in ldso
	rm -f ${S}/patch/*relro*
	rm -f ${S}/patch/*now*
	# remove default ssp build
	use hardened || rm -f ${S}/patch/*enable-ssp*
	EPATCH_SUFFIX="patch" epatch ${S}/patch/

#	epatch ${FILESDIR}/${MY_PV}/uclibc-0.9.26-arm-dl-sysdep.patch

	# build all .S files w/ -Wa,--noexecstack
	einfo "Skipping noexecstack patch. (need update)"
#	epatch ${FILESDIR}/${MY_PV}/${PN}-${MY_PV}-noexecstack.patch

	local target=""
	if [ "${ARCH}" == "x86" ] ; then
		target="i386"
	elif [ "${ARCH}" == "ppc" ] ; then
		target="powerpc"
	else
		# sparc|mips|alpha|arm|sh
		target="${ARCH}"
	fi
	sed -i \
		-e "s:default TARGET_i386:default TARGET_${target}:" \
		extra/Configs/Config.in
	sed -i \
		-e "s:default CONFIG_GENERIC_386:default CONFIG_${UCLIBC_CPU:-GENERIC_386}:" \
		extra/Configs/Config.${target}

	make defconfig >/dev/null || die "could not config"

	for def in UCLIBC_PROFILING DO{DEBUG,ASSERTS} SUPPORT_LD_DEBUG{,_EARLY} ; do
		sed -i -e "s:${def}=y:# ${def} is not set:" .config
	done
	if use debug ; then
		echo "SUPPORT_LD_DEBUG=y" >> .config
		echo "DODEBUG=y" >> .config
	fi

	for def in DO_C99_MATH UCLIBC_HAS_{RPC,CTYPE_CHECKED,WCHAR,HEXADECIMAL_FLOATS,GLIBC_CUSTOM_PRINTF,FOPEN_EXCLUSIVE_MODE,GLIBC_CUSTOM_STREAMS,PRINTF_M_SPEC,FTW} ; do
		sed -i -e "s:# ${def} is not set:${def}=y:" .config
	done
	echo "UCLIBC_HAS_FULL_RPC=y" >> .config
	echo "PTHREADS_DEBUG_SUPPORT=y" >> .config

	#if use nls
	#then
	#	sed -i -e "s:# UCLIBC_HAS_LOCALE is not set:UCLIBC_HAS_LOCALE=y:" .config
	#	echo "UCLIBC_HAS_XLOCALE=n" >> .config
	#	echo "UCLIBC_HAS_GLIBC_DIGIT_GROUPING=y" >> .config
	#	echo "UCLIBC_HAS_SCANF_LENIENT_DIGIT_GROUPING=y" >> .config
	#	echo "UCLIBC_HAS_GETTEXT_AWARENESS=y" >> .config
	#	# on pax enabled kernels the locale files can't be built
	#	echo "UCLIBC_PREGENERATED_LOCALE_DATA=n" >> .config
	#fi
	# we disable LOCALE for any case, gettext has to be used
	echo "UCLIBC_HAS_LOCALE=n" >> .config

	use ipv6 && sed -i -e "s:# UCLIBC_HAS_IPV6 is not set:UCLIBC_HAS_IPV6=y:" .config

	if use hardened
	then
		if use x86
		then
			einfo "Enable Position Independent Executable support in ${P}"
			sed -i -e "s:# UCLIBC_PIE_SUPPORT.*:UCLIBC_PIE_SUPPORT=y:" .config
		fi

		einfo "Enable Stack Smashing Protections support in ${P}"
		sed -i -e "s:# UCLIBC_PROPOLICE.*:UCLIBC_PROPOLICE=y:" .config
		echo "PROPOLICE_BLOCK_ABRT=n" >> .config
		echo "PROPOLICE_BLOCK_SEGV=n" >> .config
		echo "PROPOLICE_BLOCK_KILL=y" >> .config
	fi

	# we are building against system installed kernel headers
	sed -i -e 's:KERNEL_SOURCE.*:KERNEL_SOURCE="/usr":' .config

	if [ "${PORTAGE_LIBC}" = "uClibc" ] ; then
		sed -i \
			-e 's:SHARED_LIB_LOADER_PREFIX=.*:SHARED_LIB_LOADER_PREFIX="/lib":' \
			-e 's:DEVEL_PREFIX=.*:DEVEL_PREFIX="/usr":' \
			-e 's:RUNTIME_PREFIX=.*:RUNTIME_PREFIX="/":' \
			.config
		sed -i '/LIBRARY_CACHE:=/s:#::' Rules.mak
	fi

	make -s oldconfig > /dev/null || die "could not make oldconfig"

	chmod +x extra/scripts/relative_path.sh

	cp .config myconfig

	emake clean >/dev/null || die "could not clean"

#	sed -i 's:\$(R_PREFIX):\\"$(RUNTIME_PREFIX)\\" $(LIBRARY_CACHE):' utils/Makefile
}

src_compile() {
	cp myconfig .config

	#if use nls
	#then
	#	# these can be built only if the build system supports locales (as of 0.9.26)
	#	emake -j1 headers
	#	cd extra/locale
	#	make clean
	#	find ./charmaps -name "*.pairs" > codesets.txt
	#	cp LOCALES locales.txt
	#	emake -j1 || die "could not make locales"
	#	cd ../..
	#fi

	emake -j1 || die "could not make"
	if [ "${PORTAGE_LIBC}" = "uClibc" ]
	then
		emake -j1 utils || die "could not make utils"
	fi
}

src_install() {
	emake PREFIX=${D} install || die "install failed"

	# remove files coming from kernel-headers
	# scsi is uclibc's own directory since cvs 20040212
	if [ "${PORTAGE_LIBC}" = "uClibc" ]
	then
		rm -rf ${D}/usr/include/{asm,linux}
		rm -f ${D}/usr/lib/lib*_pic.a
		! use static && use build && rm -f ${D}/usr/lib/lib*.a

		emake PREFIX=${D} install_utils || die "install-utils failed"
		dodir /usr/bin
		exeinto /usr/bin
		doexe ${FILESDIR}/getent
	fi

	# shameless plug for mjn3 who gives us so much...
	# please give back if you can. -solar
	f=DEDICATION.mjn3 ; [ -e "$f" ] && ( cat $f ; epause 2 )

	if ! use build
	then
		dodoc Changelog* README TODO docs/*.txt DEDICATION.mjn3
		doman debian/*.1
	fi
}