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--- /dev/null
+# Copyright 1999-2005 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-6.4.1-r1.ebuild,v 1.1 2005/10/21 11:25:42 dcoutts Exp $
+
+# Brief explanation of the bootstrap logic:
+#
+# ghc requires ghc-bin to bootstrap.
+# Therefore,
+# (1) both ghc-bin and ghc provide virtual/ghc
+# (2) virtual/ghc *must* default to ghc-bin
+# (3) ghc depends on virtual/ghc
+#
+# This solution has the advantage that the binary distribution
+# can be removed once an forall after the first succesful install
+# of ghc.
+
+inherit base flag-o-matic eutils ghc-package
+
+IUSE="doc opengl"
+#java use flag disabled because of bug #106992
+
+DESCRIPTION="The Glasgow Haskell Compiler"
+HOMEPAGE="http://www.haskell.org/ghc/"
+
+# discover if this is a snapshot release
+IS_SNAPSHOT="${PV%%*pre*}" # zero if snapshot
+MY_PV="${PV/_pre/.}"
+MY_P="${PN}-${MY_PV}"
+EXTRA_SRC_URI="${MY_PV}"
+[[ -z "${IS_SNAPSHOT}" ]] && EXTRA_SRC_URI="stable/dist"
+
+SRC_URI="http://www.haskell.org/ghc/dist/${EXTRA_SRC_URI}/${MY_P}-src.tar.bz2"
+
+LICENSE="as-is"
+SLOT="0"
+# re-add ~ppc64 once dependencies are fulfilled
+KEYWORDS="-alpha ~amd64 ~x86 ~sparc ~ppc"
+
+S="${WORKDIR}/${MY_P}"
+
+PROVIDE="virtual/ghc"
+
+# ghc cannot usually be bootstrapped using later versions ...
+DEPEND="<virtual/ghc-6.5
+ !>=virtual/ghc-6.6
+ >=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
+ >=sys-libs/readline-4.2
+ doc? ( ~app-text/docbook-xml-dtd-4.2
+ app-text/docbook-xsl-stylesheets
+ >=dev-libs/libxslt-1.1.2
+ >=dev-haskell/haddock-0.6-r2 )
+ opengl? ( virtual/opengl
+ virtual/glu
+ virtual/glut )"
+# removed: java? ( >=dev-java/fop-0.20.5 )
+
+RDEPEND="virtual/libc
+ >=sys-devel/gcc-2.95.3
+ >=dev-lang/perl-5.6.1
+ >=dev-libs/gmp-4.1
+ >=sys-libs/readline-4.2
+ opengl? ( virtual/opengl virtual/glu virtual/glut )"
+
+PDEPEND=">=dev-haskell/cabal-1.1.3"
+
+SUPPORTED_CFLAGS=""
+
+# Setup supported CFLAGS.
+check_cflags() {
+ OLD_CFLAGS="${CFLAGS}"
+ CFLAGS="$1"
+ strip-unsupported-flags
+ SUPPORTED_CFLAGS="${SUPPORTED_CFLAGS} ${CFLAGS}"
+ CFLAGS="${OLD_CFLAGS}"
+}
+
+setup_cflags() {
+ check_cflags "-nopie -fno-stack-protector -fno-stack-protector-all"
+}
+
+# Portage's resolution of virtuals fails on virtual/ghc in some Portage releases,
+# the following function causes the build to fail with an informative error message
+# in such a case.
+# pkg_setup() {
+# if ! has_version virtual/ghc; then
+# eerror "This ebuild needs a version of GHC to bootstrap from."
+# eerror "Please emerge dev-lang/ghc-bin to get a binary version."
+# eerror "You can either use the binary version directly or emerge"
+# eerror "dev-lang/ghc afterwards."
+# die "virtual/ghc version required to build"
+# fi
+# }
+
+src_unpack() {
+ base_src_unpack
+
+ # TODO: test if ppc/ppc64 works without patch now ...
+
+ # hardened-gcc needs to be disabled, because the
+ # mangler doesn't accept its output; yes, the 6.2 version
+ # should do ...
+ cd "${S}/ghc/driver"
+ setup_cflags
+
+ epatch "${FILESDIR}/${PN}-6.2.hardened.patch"
+ sed -i -e "s|@GHC_CFLAGS@|${SUPPORTED_CFLAGS// -/ -optc-}|" ghc/ghc.sh
+ sed -i -e "s|@GHC_CFLAGS@|${SUPPORTED_CFLAGS// -/ -optc-}|" ghci/ghci.sh
+}
+
+src_compile() {
+ local myconf
+ local mydoc
+
+ if use opengl; then
+ myconf="--enable-hopengl"
+ fi
+
+ # initialize build.mk
+ echo '# Gentoo changes' > mk/build.mk
+
+ # determine what to do with documentation
+ if use doc; then
+ mydoc="html"
+# if use java; then
+# mydoc="${mydoc} ps"
+# fi
+ else
+ mydoc=""
+ # needed to prevent haddock from being called
+ echo NO_HADDOCK_DOCS=YES >> mk/build.mk
+ fi
+ echo XMLDocWays="${mydoc}" >> mk/build.mk
+
+ # disable the automatic PIC building which is considered as Prologue Junk by the Haskell Compiler
+ # thanks to Peter Simons for finding this and giving notice on bugs.gentoo.org
+ # (this is still necessary, even though we have the patch, because
+ # we might be bootstrapping from a version that didn't have the
+ # patch included)
+ setup_cflags
+ echo "SRC_CC_OPTS+=${SUPPORTED_CFLAGS}" >> mk/build.mk
+ echo "SRC_HC_OPTS+=${SUPPORTED_CFLAGS// -/ -optc-}" >> 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
+
+ # Required for some architectures, because they don't support ghc fully ...
+ use ppc || use ppc64 || use sparc && echo "SplitObjs=NO" >> mk/build.mk
+ use ppc64 && echo "GhcWithInterpreter=NO" >> mk/build.mk
+
+ econf ${myconf} || die "econf failed"
+
+ # the build does not seem to work all that
+ # well with parallel make
+ emake -j1 all datadir="/usr/share/doc/${PF}" || die "make failed"
+ # the explicit datadir is required to make the haddock entries
+ # in the package.conf file point to the right place ...
+
+}
+
+src_install () {
+ local insttarget
+
+ insttarget="install"
+ use doc && insttarget="${insttarget} install-docs"
+
+ # the libdir0 setting is needed for amd64, and does not
+ # harm for other arches
+ emake -j1 ${insttarget} \
+ prefix="${D}/usr" \
+ datadir="${D}/usr/share/doc/${PF}" \
+ infodir="${D}/usr/share/info" \
+ mandir="${D}/usr/share/man" \
+ libdir0="${D}/usr/$(get_libdir)" \
+ || die "make ${insttarget} failed"
+
+ #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
+
+ dosbin ${FILESDIR}/ghc-updater
+}
+
+pkg_postinst () {
+ ebegin "Unregistering ghc's built-in cabal "
+ $(ghc-getghcpkg) unregister Cabal > /dev/null
+ eend $?
+ ghc-reregister
+ einfo "If you have dev-lang/ghc-bin installed, you might"
+ einfo "want to unmerge it. It is no longer needed."
+ einfo
+ ewarn "IMPORTANT:"
+ ewarn "If you upgrade from another ghc version, please run"
+ ewarn "/usr/sbin/ghc-updater to re-merge all ghc-based"
+ ewarn "Haskell libraries."
+}
+
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