# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

DESCRIPTION="Glasgow Haskell Compiler -- from Debian"
HOMEPAGE="http://packages.debian.org/ http://haskell.org/ghc/"
SRC_URI="amd64? (http://debian-amd64.alioth.debian.org/pure64/pool/unstable/main/amd64/g/ghc6/ghc6_6.2.1-5_amd64.deb)"
LICENSE="as-is"
KEYWORDS="-* ~amd64"
SLOT="0"
DEPEND="app-arch/dpkg dev-lang/perl"
RDEPEND="virtual/libc dev-lang/perl sys-libs/readline sys-libs/ncurses dev-libs/gmp"
PROVIDE="virtual/ghc"
S="${WORKDIR}"

src_unpack() {
	for i in ${A}; do
		dpkg -x ${DISTDIR}/${i} .
	done
}

src_install() {
	# Copy it
	mkdir -p ${D}/opt/ghc
	for i in lib share; do
		cp -rl usr/$i/ghc-6.2.1 ${D}/opt/ghc/$i
	done

	# Provide package.conf
	pushd ${D}/opt/ghc/lib
	cp -a package.conf.shipped package.conf
	popd

	# Generate symlinks in ${D}/opt/ghc/bin
	mkdir -p ${D}/opt/ghc/bin
	pushd ${D}/opt/ghc/bin
	ln -s ../lib/bin/ghc ghc6
	ln -s ../lib/bin/ghci ghci6
	ln -s ghc6 ghc
	ln -s ghci6 ghci
	popd

	# Adjust paths in ${D}/opt/ghc/lib/bin
	pushd ${D}/opt/ghc/lib/bin
	perl -i -ne 's#/usr/lib/ghc-6.2.1#/opt/ghc/lib#g;
			 s#/usr/share/ghc-6.2.1#/opt/ghc/share#g;print' \
		ghc-6.2.1 ghci-6.2.1 ghcprof hsc2hs ghc-pkg-6.2.1
	popd
}