# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-libs/dietlibc/dietlibc-0.33_pre20110403.ebuild,v 1.7 2012/08/21 03:29:23 ottxor Exp $

EAPI="3"

inherit eutils flag-o-matic toolchain-funcs

MY_PV=${PV/_pre/~cvs}
DEB_PV="3"

DESCRIPTION="A libc optimized for small size"
HOMEPAGE="http://www.fefe.de/dietlibc/"
SRC_URI="https://launchpad.net/ubuntu/+archive/primary/+files/dietlibc_${MY_PV}.orig.tar.gz
	https://launchpad.net/ubuntu/+archive/primary/+files/dietlibc_${MY_PV}-${DEB_PV}.debian.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~alpha amd64 ~arm -hppa ~mips ~sparc x86 ~amd64-linux ~x86-linux"
IUSE="debug"

DEPEND=""
RDEPEND=""

S="${WORKDIR}"/dietlibc-${MY_PV}

DIETHOME=/usr/diet

IUSE_LIBC_TARGET="alpha arm armeb i386 ia64 mips mipsel parisc parisc64 ppc ppc64 s390 s390x sparc sparc64 x86_64"

for t in ${IUSE_LIBC_TARGET} ; do
	IUSE="${IUSE} target_${t}"
done

pkg_setup() {
	# Replace sparc64 related C[XX]FLAGS (see bug #45716)
	use sparc && replace-sparc64-flags

	# gcc-hppa suffers support for SSP, compilation will fail
	use hppa && strip-unsupported-flags

	# debug flags
	use debug && append-flags -g

	dARCH=$(tc-ninja_magic_to_arch)
	case ${dARCH} in
		x86)	dARCH=i386
		;;
		amd64)	dARCH=x86_64
		;;
	esac

	# Makefile does not append CFLAGS
	append-flags -nostdinc -W -Wall -Wextra -Wchar-subscripts \
		-Wmissing-prototypes -Wmissing-declarations -Wno-switch \
		-Wno-unused -Wredundant-decls -fno-strict-aliasing

	# only use -nopie on archs that support it
	gcc-specs-pie && append-flags -nopie
}

src_prepare() {
	EPATCH_SOURCE="${WORKDIR}/debian/patches" EPATCH_SUFFIX="diff" \
	EPATCH_FORCE="yes" epatch
	ln -sf bin-${ARCH} bin-${CHOST/-*/}
}

src_compile() {
	for t in ${IUSE_LIBC_TARGET} ; do
		use target_$t $USE || continue

		tC="CROSS_$t"
		if [ -z "${!tC}" ] ; then
			ewarn "CROSS_$t not defined, can't build"
			sleep 15
			continue
		fi

		einfo "Building libc $t"
		emake prefix="${EPREFIX}"${DIETHOME} \
			MYARCH="${t}" \
			CROSS="${!tC}" \
			CFLAGS="${CFLAGS}" \
			STRIP=":" \
			|| die "make failed"
	done
}

src_install() {
	emake prefix="${EPREFIX}"${DIETHOME} \
		DESTDIR="${D}" \
		install-headers \
		|| die "make install-headers failed"

	for t in ${IUSE_LIBC_TARGET} ; do
		use target_$t $USE || continue

		einfo "Installing libc $t"
		emake prefix=${DIETHOME} \
			MYARCH="${t}" \
			DESTDIR="${D}" \
			install-bin \
			|| die "make install-bin failed"
	done

	dobin "${ED}"${DIETHOME}/bin/* || die "dobin failed"
	doman "${ED}"${DIETHOME}/man/*/* || die "doman failed"
	rm -r "${ED}"${DIETHOME}/{man,bin}

	dodoc AUTHOR BUGS CAVEAT CHANGES README THANKS TODO PORTING
}