# $Id: gmp-4.3.1-r2.smage2 3003 2009-10-05 19:14:19Z niro $

PNAME="gmp"
PVER="5.0.1"
PBUILD="r2"

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

DESCRIPTION="GMP is a free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers."
HOMEPAGE="http://www.swox.com/gmp/"

# do not depend on glibc, as it depends ob libstdc++ and this wants gmp
# as SRCDEPEND -> this may generate loops
DEPEND=""

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

# not multilib.sminc compat, don't use it!
sminclude mbuild mcore

SRC_URI=(
	gnu://${PNAME}/${SRCFILE}
	mirror://${PNAME}/${SRCFILE}
)

UP2DATE="updatecmd_gnu ${PNAME}"

src_compile()
{
	install -d ${SRCDIR}/build
	cd ${SRCDIR}/build
	CPPFLAGS="-fexceptions" \
	CC="gcc -isystem /usr/include" \
	CXX="g++ -isystem /usr/include" \
	LDFLAGS="-Wl,-rpath-link,/$(mlibdir)" \
	../configure \
		--build=${CHOST} \
		--host=${CHOST} \
		--prefix=/usr \
		--mandir=/usr/share/man \
		--infodir=/usr/share/info \
		--libdir=/usr/$(mlibdir) \
		--enable-mpbsd \
		--enable-cxx \
		|| die
	mmake || die

	# build 32bit libraries for multilib systems
	if [[ ${ARCH} = x86_64 ]]
	then
		install -d ${SRCDIR}/build-m32
		cd ${SRCDIR}/build-m32
		CPPFLAGS="-fexceptions" \
		ABI=32 \
		CC="gcc -m${ABI} -isystem /usr/include" \
		CXX="g++ -m${ABI} -isystem /usr/include" \
		LDFLAGS="-Wl,-rpath-link,/lib -m${ABI}" \
		../configure \
			--build=${CHOST} \
			--host=${CHOST} \
			--prefix=/usr \
			--mandir=/usr/share/man \
			--infodir=/usr/share/info \
			--libdir=/usr/lib \
			--enable-mpbsd \
			--enable-cxx \
			|| die
		mmake || die
	fi
}

src_install()
{
	cd ${SRCDIR}/build
	make DESTDIR=${BINDIR} install || die

	# build 32bit libraries for multilib systems
	if [[ ${ARCH} = x86_64 ]]
	then
		# move the 64bit header
		mv ${BINDIR}/usr/include/gmp{,-64}.h || die

		cd ${SRCDIR}/build-m32
		make DESTDIR=${BINDIR} install || die

		# move the 32bit header
		mv ${BINDIR}/usr/include/gmp{,-32}.h || die

		# create a wrapper header
		cat > ${BINDIR}/usr/include/gmp.h << "EOF"
/* gmp.h - Stub Header  */
#ifndef __STUB__GMP_H__
#define __STUB__GMP_H__

#if defined(__x86_64__) || \
    defined(__sparc64__) || \
    defined(__arch64__) || \
    defined(__powerpc64__) || \
    defined (__s390x__)
# include "gmp-64.h"
#else
# include "gmp-32.h"
#endif

#endif /* __STUB__GMP_H__ */
EOF
	fi

	cd ${SRCDIR}
	minstalldocs AUTHORS COPYING* ChangeLog NEWS README || die
}