# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils flag-o-matic versionator

major=$(get_version_component_range 1)
minor=$(get_version_component_range 2)
rtype=`expr match $(get_version_component_range 3) '\([a-z]*\)'`
release=`expr match $(get_version_component_range 3) '[a-z]*\([0-9]*\)'`
MY_P="MetaOCaml_${major}${minor}_${rtype}_${release}"

DESCRIPTION="A compiled, type-safe, multi-stage programming language"
HOMEPAGE="http://www.metaocaml.org/"
SRC_URI="http://www.metaocaml.org/dist/old/${MY_P}.tar.gz"
LICENSE="QPL-1.0 GPL-2-with-linking-exception"

KEYWORDS="~x86"

SLOT="0"

IUSE="ncurses tcltk threads doc latex"

RESTRICT="nostrip"

DEPEND="virtual/libc
		ncurses? ( >=sys-libs/ncurses-5.4-r6 )
		tcltk?   ( >=dev-lang/tk-8.4.9 )
		doc? app-doc/ocaml-docs
		!dev-lang/ocaml"

PROVIDE="dev-lang/ocaml"

S=${WORKDIR}/${MY_P}

src_compile() {
	filter-flags "-fstack-protector"
	replace-flags "-O?" -O2

	local myconf

	use ncurses || myconf="${myconf} -no-curses"
	use tcltk || myconf="${myconf} -no-tk"
	use threads && myconf="${myconf} -with-pthread" || myconf="${myconf} -no-pthread"

	./configure \
		${myconf} \
		-host ${CHOST} \
		-prefix /usr \
		-bindir /usr/bin \
		-libdir /usr/$(get_libdir)/ocaml \
		-mandir /usr/share/man || die "./configure failed"

	sed -i -e "s/\(BYTECCCOMPOPTS=.*\)/\1 ${CFLAGS}/" config/Makefile
	sed -i -e "s/\(NATIVECCCOMPOPTS=.*\)/\1 ${CFLAGS}/" config/Makefile

	local makeOptions="-j1"

	emake ${makeOptions} world || die "emake world failed"

	emake ${makeOptions} bootstrap

	# If the first bootstrap fails, we try bootstrapping again
	# to get to a fixpoint.
	if [ ${?} != 0 ]; then #not at fix point...
		emake ${makeOptions} bootstrap || die "Second emake bootstrap failed"
	fi

	#make world.opt does not produce metaocaml[c]; do it manually
	emake ${makeOptions} opt || die "emake opt failed"
	emake ${makeOptions} opt.opt || die "emake opt.opt failed"
}

src_install() {
	make BINDIR=${D}/usr/bin \
		LIBDIR=${D}/usr/$(get_libdir)/ocaml \
		MANDIR=${D}/usr/share/man \
		install || die "make install failed"
	
	# removes sandbox dir from ld.conf
	dosed "s:${D}::g" /usr/$(get_libdir)/ocaml/ld.conf

	dodoc Changes README Upgrading
}

pkg_postinst() {
	use latex && echo "TEXINPUTS=/usr/$(get_libdir)/ocaml/ocamldoc:" > /etc/env.d/99ocamldoc
	echo
	einfo "OCaml and thus also MetaOCaml are not binary compatible from version to version."
	einfo "You (may) need to rebuild all installed packages depending on dev-lan/ocaml."
	echo
	einfo "To do so, you can run: "
	einfo "  sh /usr/portage/dev-lang/ocaml/files/ocaml-rebuild.sh [-h | emerge options]"
	einfo "which will call emerge on all old packages with the given options."
	echo
}