# $Id$

PNAME="ghc"
PVER="6.12.3"
PBUILD="r1"

PCATEGORIE="dev-lang"
STATE="unstable"

DESCRIPTION="Glasgow Haskell Compiler."
HOMEPAGE="http://www.haskell.org/ghc/"

DEPEND=">= dev-lang/perl-5.10
	>= sys-dev/gcc-4.3
	>= dev-libs/gmp-4.3
	>= sys-libs/readline-6"

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

# binary sources
SRCFILE_BIN_x86="${PNAME}-${PVER}-i386-unknown-linux-n.tar.bz2"
SRCFILE_BIN_x86_64="${PNAME}-${PVER}-x86_64-unknown-linux-n.tar.bz2"
SRCFILE_BIN="$(eval echo \$SRCFILE_BIN_${ARCH/i*86/x86})"
SRCDIR_BIN="${BUILDDIR}/binary/${PNAME}-${PVER}"

SRC_URI=(
	http://www.haskell.org/ghc/dist/${PVER}/${SRCFILE}
	http://www.haskell.org/ghc/dist/${PVER}/${SRCFILE_BIN_x86}
	http://www.haskell.org/ghc/dist/${PVER}/${SRCFILE_BIN_x86_64}
	mirror://${PNAME}/${SRCFILE}
	mirror://${PNAME}/${SRCFILE_BIN_x86}
	mirror://${PNAME}/${SRCFILE_BIN_x86_64}
	mirror://${PNAME}/${PNAME}-6.12.2-chost-2.patch
)

UP2DATE="updatecmd ${HOMEPAGE}download.html | grep 'Current Stable' | sed 's:.*(\(.*\)):\1:'"

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

	install -d ${BUILDDIR}/binary || die
	munpack ${SRCFILE_BIN} ${BUILDDIR}/binary || die

	cd ${SRCDIR}

	# fix broken chosts
	mpatch ${PNAME}-6.12.2-chost-2.patch || die

	# fixes configure: line 3817: FP_DECL_ALTZONE: command not found
	cp libraries/{,old-}time/aclocal.m4 || die

	autoreconf --verbose --install --force || die
}

src_compile()
{
	# first setup the binary compiler to bootstrap ghc
	cd ${SRCDIR_BIN}
# inplace doesn't work anymore
#	mconfigure || die
#	make in-place || die
#
#	# setup the path to ghc
#	local myarch="${ARCH}"
#	[[ ${ARCH} = i*86 ]] && myarch="i386"
#	export PATH="${PATH}:${SRCDIR_BIN}/bin/${myarch}-unknown-linux"
#
# install to ${BUILDDIR}/binary from now on
	mconfigure --prefix=${BUILDDIR}/binary || die
	make install || die
	export PATH="${PATH}:${BUILDDIR}/binary/bin"

	# now bootstrap ghc
	cd ${SRCDIR}

	# initialize build.mk
	echo '# Magellan build' > mk/build.mk || die

	# fix pathes
	echo "docdir = /usr/share/doc/${PNAME}-${PVER}" >> mk/build.mk || die
	echo "htmldir = /usr/share/doc/${PNAME}-${PVER}" >> mk/build.mk || die

	# disable the build of docs
	echo HADDOCK_DOCS=NO >> mk/build.mk || die
	echo XMLDocWays="" >> mk/build.mk || die

	# do not use shell wrapper
	sed -i "s|utils/haddock_dist_INSTALL_SHELL_WRAPPER = YES|utils/haddock_dist_INSTALL_SHELL_WRAPPER = NO|" \
		utils/haddock/ghc.mk || die

	# taken from gentoo:
	# circumvent a very strange bug that seems related with ghc producing
	# too much output while being filtered through tee (e.g. due to
	# portage logging) reported as bug #111183
	echo "SRC_HC_OPTS+=-w" >> mk/build.mk || die

	#mconfigure || die # wants to crosscompile
	./configure --prefix=/usr --libdir=/usr/$(mlibdir) || die
	mmake -j1 all || die
}

src_install()
{
	cd ${SRCDIR}
	mmake -j1 DESTDIR=${BINDIR} install || die
	minstalldocs ANNOUNCE HACKING LICENSE README VERSION || die
}