# $Id: klibc-1.5.15-r4.smage2 3200 2009-10-16 11:22:56Z niro $

PNAME="klibc"
PVER="1.5.21"
PBUILD="r1"

PCATEGORIE="dev-libs"
STATE="unstable"

DESCRIPTION="A minimal libc subset for use with initramfs."
HOMEPAGE="http://www.kernel.org/pub/linux/libs/klibc/"

DEPEND=">= dev-lang/perl-5"
SDEPEND=">= virtual/kernel-sources"

SRCFILE="${PNAME}-${PVER}.tar.bz2"
SRCDIR="${BUILDDIR}/${PNAME}-${PVER}"

# global var: ${LINUX_SOURCES}
# location where they are
[[ -z ${LINUX_SOURCES} ]] && LINUX_SOURCES="/usr/src/linux"

sminclude mtools

SRC_URI=(
	http://www.kernel.org/pub/linux/libs/${PNAME}/Current/${SRCFILE}
	mirror://${PNAME}/${SRCFILE}
	mirror://${PNAME}/${PNAME}-1.5.15-mntproc-definitions.patch
)

UP2DATE="updatecmd ${HOMEPAGE}/Current/'?C=M;O=A' | lasttarball"

src_prepare()
{
	munpack ${SRCFILE} || die
	cd ${SRCDIR}

	# mntproc definitions are missing in newer kernels (>=2.6.31)
	mpatch ${PNAME}-1.5.15-mntproc-definitions.patch || die

	ln -snf ${LINUX_SOURCES} ${SRCDIR}/linux || die
}

src_compile()
{
	cd ${SRCDIR}

	mmake \
		ARCH=${ARCH/i*86/i386} \
		KLIBCARCH=${ARCH/i*86/i386} \
		KLIBCASMARCH=${ARCH/i*86/x86} \
		mandir=/usr/share/man \
		libdir=/usr/$(mlibdir) \
		INSTALLDIR=/usr/$(mlibdir)/klibc \
		SHLIBDIR=/$(mlibdir) \
		|| die
}

src_install()
{
	cd ${SRCDIR}

	# needed directories
	minstalldir /usr/share/aclocal || die

	mmake \
		ARCH=${ARCH/i*86/i386} \
		KLIBCARCH=${ARCH/i*86/i386} \
		KLIBCASMARCH=${ARCH/[i|x]*86*/x86} \
		INSTALLROOT=${BINDIR} \
		mandir=/usr/share/man \
		libdir=/usr/$(mlibdir) \
		INSTALLDIR=/usr/$(mlibdir)/klibc \
		SHLIBDIR=/$(mlibdir) \
		install || die

	# remove hardlinks; use symlinks
	rm ${BINDIR}/usr/$(mlibdir)/klibc/bin/{gunzip,zcat} || die
	mlink gzip /usr/$(mlibdir)/klibc/bin/gunzip || die
	mlink gzip /usr/$(mlibdir)/klibc/bin/zcat || die

	# missing ac-includes
	minstallfile contrib/klibc.m4 /usr/share/aclocal || die

#	# broken due the patch
#	mlink asm-x86 /usr/$(mlibdir)/klibc/include/asm || die

	# remove broken symlinks
	if [[ -L ${BINDIR}/usr/$(mlibdir)/klibc/include/asm/asm-${ARCH/i*86/x86} ]]
	then
		rm ${BINDIR}/usr/$(mlibdir)/klibc/include/asm/asm-${ARCH/i*86/x86} || die
	fi
	if [[ -L ${BINDIR}/usr/$(mlibdir)/klibc/include/asm/asm-${ARCH/i*86/i386} ]]
	then
		rm ${BINDIR}/usr/$(mlibdir)/klibc/include/asm/asm-${ARCH/i*86/i386} || die
	fi

	# copy missing adm includes
	cp -a linux/arch/x86/include/asm/* ${BINDIR}/usr/$(mlibdir)/klibc/include/asm/ || die

	# docs
	minstalldocs README usr/klibc/{CAVEATS,LICENSE} usr/dash/README.klibc || die
}