dev-lang/ghc/ghc-5.04.2.ebuild


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# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-5.04.2.ebuild,v 1.2 2003/02/13 10:25:30 vapier Exp $

#Some explanation of bootstrap logic:
#
#After thinking through the best way to bootstrap ghc I decided to split it into
#ghc and ghc-bin and make ghc depend on ghc-bin.
#  The ebuild has been revamped and greatly simplified. Bootstrap off old 4x hc files no longer works on x86.
#Not sure what happens with old scheme on sparc, as I did not see any test reports.
#
#The considerations:
#Making ghc unpack binary build first (under ${WORKDIR}) and bootstrapping from that will effectively force
#ghc-bin reinstall every time ghc is rebuilt or upgraded. What is worse it will likely force download of binary image
#at upgrade, which is not nice (in fact quite bad for modem users - 16+ MB).
#
#The best results are achieved if ghc-bin is left alone after ghc installation -
#Both ebuilds install in the same place, thus space penalty is minimal. In fact only the docs exist in double
#(considering that ghc is not installing much docs at present this looks more like an advantage).
#When the upgrade time comes, if you still have ghc-bin around, portage will happily bootstrap off
#your existing ghc (or ghc-bin, whichever was merged last), without attempting to ruin anything...

IUSE="iopengl"

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

SRC_URI="http://www.haskell.org/ghc/dist/${PV}/ghc-${PV}-src.tar.bz2"

LICENSE="as-is"
SLOT="0"
KEYWORDS="~x86 ~sparc"


# FIXME: Add USE support for parallel haskell (requires PVM)
#        Get PVM from ftp://ftp.netlib.org/pvm3/
DEPEND=">=dev-lang/ghc-bin-5.04
	>=sys-devel/perl-5.6.1
	>=sys-devel/gcc-2.95.3
	>=sys-devel/make-3.79.1
	>=sys-apps/sed-3.02.80
	>=sys-devel/flex-2.5.4a
	>=dev-libs/gmp-4.1
	opengl? ( virtual/opengl
		virtual/glu
		virtual/glut )"

RDEPEND="virtual/glibc
	>=sys-devel/gcc-2.95.3
	>=sys-devel/perl-5.6.1
	opengl? ( virtual/opengl virtual/glu virtual/glut )"


src_compile() {
	local myconf
	use opengl && myconf="--enable-hopengl" || myconf="--disable-hopengl"

	econf --enable-threaded-rts ${myconf}|| die "./configure failed"
	# the build does not seem to work all that
	# well with parallel make
	make || die
}

src_install () {
	make install \
	    prefix="${D}/usr" \
		infodir="${D}/usr/share/info" \
		mandir="${D}/usr/share/man" || die

	#need to remove ${D} from ghcprof script
	cd ${D}/usr/bin
	mv ghcprof ghcprof-orig
	sed -e 's:$FPTOOLS_TOP_ABS:#$FPTOOLS_TOP_ABS:' ghcprof-orig > ghcprof
	chmod a+x ghcprof
	rm -f ghcprof-orig

	cd ${S}/ghc
	dodoc README ANNOUNCE LICENSE VERSION
}