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# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-6.2-r1.ebuild,v 1.8 2004/10/18 16:47:48 usata 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 ${WORKDIR}) and bootstrapping from that will effectively force
#ghc-bin reinstall every time ghc is rebuilt or upgraded. What is worse it will likely force download of binary image
#at upgrade, which is not nice (in fact quite bad for modem users - 16+ MB).
#
#The best results are achieved if ghc-bin is left alone after ghc installation -
#Both ebuilds install in the same place, thus space penalty is minimal. In fact only the docs exist in double
#(considering that ghc is not installing much docs at present this looks more like an advantage).
#When the upgrade time comes, if you still have ghc-bin around, portage will happily bootstrap off
#your existing ghc (or ghc-bin, whichever was merged last), without attempting to ruin anything...
#
#There is only one issue: ghci will be successfully built only if ghc is bootstrapped from the same version.
#Thus we need to detect presently installed one and bootstrap in one or two stages..
inherit base
IUSE="doc tetex opengl"
DESCRIPTION="The Glasgow Haskell Compiler"
HOMEPAGE="http://www.haskell.org/ghc/"
SRC_URI="http://www.haskell.org/ghc/dist/${PV}/ghc-${PV}-src.tar.bz2"
LICENSE="as-is"
SLOT="0"
KEYWORDS="x86 -ppc -alpha"
PROVIDE="virtual/ghc"
# FIXME: Add USE support for parallel haskell (requires PVM)
# Get PVM from ftp://ftp.netlib.org/pvm3/
DEPEND="virtual/ghc
>=dev-lang/perl-5.6.1
>=sys-devel/gcc-2.95.3
>=sys-devel/make-3.79.1
>=sys-apps/sed-3.02.80
>=sys-devel/flex-2.5.4a
>=dev-libs/gmp-4.1
doc? ( >=app-text/openjade-1.3.1
>=app-text/sgml-common-0.6.3
~app-text/docbook-sgml-dtd-3.1
>=app-text/docbook-dsssl-stylesheets-1.64
>=dev-haskell/haddock-0.6-r2
tetex? ( virtual/tetex
>=app-text/jadetex-3.12 ) )
opengl? ( virtual/opengl
virtual/glu
virtual/glut )"
RDEPEND="virtual/libc
>=sys-devel/gcc-2.95.3
>=dev-lang/perl-5.6.1
>=dev-libs/gmp-4.1
opengl? ( virtual/opengl virtual/glu virtual/glut )"
# extend path to /opt/ghc/bin to guarantee that ghc-bin is found
GHCPATH="${PATH}:/opt/ghc/bin"
src_unpack() {
base_src_unpack
# for documentation generation the new ghc should be used,
# not the old one ...
patch -p0 < ${FILESDIR}/ghc-6.2.documentation.patch
# hardened-gcc needs to be disabled, because the
# mangler doesn't accept its output
bzcat ${FILESDIR}/ghc-6.2.hardened.patch.bz2 | patch -p0
}
src_compile() {
local myconf
if use opengl; then
myconf="--enable-hopengl"
fi
# disable the automatic PIC building which is considered as Prologue Junk by the Haskell Compiler
# thanks to Peter Simons for finding this and giving notice on bugs.gentoo.org
# (this is still necessary, even though we have the patch, because
# we might be bootstrapping from a version that didn't have the
# patch included)
# new hardened gcc switches by pappy
echo "SRC_CC_OPTS+=-fno-pic -fno-stack-protector" >> mk/build.mk
echo "SRC_HC_OPTS+=-optc-fno-pic -optc-fno-stack-protector" >> mk/build.mk
# force the config variable ArSupportsInput to be unset;
# ar in binutils >= 2.14.90.0.8-r1 seems to be classified
# incorrectly by the configure script
echo "ArSupportsInput:=" >> mk/build.mk
# unset SGML_CATALOG_FILES because documentation installation
# breaks otherwise ...
PATH="${GHCPATH}" SGML_CATALOG_FILES="" econf \
--enable-threaded-rts ${myconf} || die "econf failed"
# the build does not seem to work all that
# well with parallel make
make || die "make failed"
# if documentation has been requested, build documentation ...
if use doc; then
make html || die "make html failed"
if use tetex; then
make ps || die "make ps failed"
fi
fi
}
src_install () {
local mydoc
local insttarget
insttarget="install"
# determine what to do with documentation
if use doc; then
mydoc="html"
insttarget="${insttarget} install-docs"
if use tetex; then
mydoc="${mydoc} ps"
fi
else
mydoc=""
# needed to prevent haddock from being called
echo NO_HADDOCK_DOCS=YES >> mk/build.mk
fi
echo SGMLDocWays="${mydoc}" >> mk/build.mk
make ${insttarget} \
prefix="${D}/usr" \
datadir="${D}/usr/share/doc/${PF}" \
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
}
pkg_postinst () {
einfo "If you have dev-lang/ghc-bin installed, you might"
einfo "want to unmerge it again. It is no longer needed."
}
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