# Copyright 1999-2008 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-6.6.1.ebuild,v 1.17 2008/03/01 11:43:34 armin76 Exp $ # Brief explanation of the bootstrap logic: # # Previous ghc ebuilds have been split into two: ghc and ghc-bin, # where ghc-bin was primarily used for bootstrapping purposes. # From now on, these two ebuilds have been combined, with the # binary USE flag used to determine whether or not the pre-built # binary package should be emerged or whether ghc should be compiled # from source. If the latter, then the relevant ghc-bin for the # arch in question will be used in the working directory to compile # ghc from source. # Note to users of hardened gcc-3.x: # # If you emerge ghc with hardened gcc it should work fine (because we # turn off the hardened features that would otherwise break ghc). # However, emerging ghc while using a vanilla gcc and then switching to # hardened gcc (using gcc-config) will leave you with a broken ghc. To # fix it you would need to either switch back to vanilla gcc or re-emerge # ghc (or ghc-bin). Note that also if you are using hardened gcc-3.x and # you switch to gcc-4.x that this will also break ghc and you'll need to # re-emerge ghc (or ghc-bin). People using vanilla gcc can switch between # gcc-3.x and 4.x with no problems. inherit base bash-completion eutils flag-o-matic toolchain-funcs ghc-package versionator 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="current/dist" SRC_URI="!binary? ( http://haskell.org/ghc/dist/${EXTRA_SRC_URI}/${MY_P}-src.tar.bz2 ) alpha? ( mirror://gentoo/ghc-bin-${PV}-alpha.tbz2 ) amd64? ( mirror://gentoo/ghc-bin-${PV}-amd64.tbz2 ) hppa? ( mirror://gentoo/ghc-bin-${PV}-hppa.tbz2 ) ia64? ( mirror://gentoo/ghc-bin-${PV}-ia64.tbz2 ) ppc? ( mirror://gentoo/ghc-bin-${PV}-ppc.tbz2 ) sparc? ( mirror://gentoo/ghc-bin-${PV}-sparc.tbz2 ) x86? ( mirror://gentoo/ghc-bin-${PV}-x86.tbz2 )" LICENSE="BSD" SLOT="0" KEYWORDS="~alpha amd64 hppa ~ia64 ppc sparc x86" IUSE="binary doc ghcbootstrap" LOC="/opt/ghc" # location for installation of binary version S="${WORKDIR}/${MY_P}" RDEPEND=" !dev-lang/ghc-bin >=sys-devel/gcc-2.95.3 >=sys-devel/binutils-2.17 >=dev-lang/perl-5.6.1 >=dev-libs/gmp-4.1 =sys-libs/readline-5*" DEPEND="${RDEPEND} ghcbootstrap? ( doc? ( ~app-text/docbook-xml-dtd-4.2 app-text/docbook-xsl-stylesheets >=dev-libs/libxslt-1.1.2 >=dev-haskell/haddock-0.8 ) )" # In the ghcbootstrap case we rely on the developer having # >=ghc-5.04.3 on their $PATH already PDEPEND=">=dev-haskell/cabal-1.1.6.2 >=dev-haskell/filepath-1.0 >=dev-haskell/regex-base-0.72 >=dev-haskell/regex-posix-0.71 >=dev-haskell/regex-compat-0.71" append-ghc-cflags() { local flag compile assemble link for flag in $*; do case ${flag} in compile) compile="yes";; assemble) assemble="yes";; link) link="yes";; *) [[ ${compile} ]] && GHC_CFLAGS="${GHC_CFLAGS} -optc${flag}" [[ ${assemble} ]] && GHC_CFLAGS="${GHC_CFLAGS} -opta${flag}" [[ ${link} ]] && GHC_CFLAGS="${GHC_CFLAGS} -optl${flag}";; esac done } ghc_setup_cflags() { # We need to be very careful with the CFLAGS we ask ghc to pass through to # gcc. There are plenty of flags which will make gcc produce output that # breaks ghc in various ways. The main ones we want to pass through are # -mcpu / -march flags. These are important for arches like alpha & sparc. # We also use these CFLAGS for building the C parts of ghc, ie the rts. strip-flags strip-unsupported-flags filter-flags -fPIC GHC_CFLAGS="" for flag in ${CFLAGS}; do case ${flag} in # Ignore extra optimisation (ghc passes -O to gcc anyway) # -O2 and above break on too many systems -O*) ;; # Arch and ABI flags are what we're really after -m*) append-ghc-cflags compile assemble ${flag};; # Debugging flags don't help either. You can't debug Haskell code # at the C source level and the mangler discards the debug info. -g*) ;; # Ignore all other flags, including all -f* flags esac done # hardened-gcc needs to be disabled, because the mangler doesn't accept # its output. gcc-specs-pie && append-ghc-cflags compile link -nopie gcc-specs-ssp && append-ghc-cflags compile -fno-stack-protector # We also add -Wa,--noexecstack to get ghc to generate .o files with # non-exectable stack. This it a hack until ghc does it itself properly. append-ghc-cflags assemble "-Wa,--noexecstack" } pkg_setup() { if use ghcbootstrap; then ewarn "You requested ghc bootstrapping, this is usually only used" ewarn "by Gentoo developers to make binary .tbz2 packages for" ewarn "use with the ghc ebuild's USE=\"binary\" feature." use binary && \ die "USE=\"ghcbootstrap binary\" is not a valid combination." [[ -z $(type -P ghc) ]] && \ die "Could not find a ghc to bootstrap with." elif use ppc64; then eerror "No binary .tbz2 package available yet for these arches:" eerror " ppc64" eerror "Please try emerging with USE=ghcbootstrap and report build" eerror "sucess or failure to the haskell team (haskell@gentoo.org)" die "No binary available for this arch yet, USE=ghcbootstrap" fi set_config } set_config() { # make this a separate function and call it several times as portage doesn't # remember the variables properly between the fuctions. use binary && GHC_PREFIX="/opt/ghc" || GHC_PREFIX="/usr" } src_unpack() { # Create the ${S} dir if we're using the binary version use binary && mkdir "${S}" base_src_unpack ghc_setup_cflags if use binary; then # Move unpacked files to the expected place mv "${WORKDIR}/usr" "${S}" # Relocate from /usr to /opt/ghc sed -i -e "s|/usr|${LOC}|g" \ "${S}/usr/bin/ghc-${PV}" \ "${S}/usr/bin/ghci-${PV}" \ "${S}/usr/bin/ghc-pkg-${PV}" \ "${S}/usr/bin/hsc2hs" \ "${S}/usr/$(get_libdir)/${P}/package.conf" \ || die "Relocating ghc from /usr to /opt/ghc failed" sed -i -e "s|/usr/$(get_libdir)|${LOC}/$(get_libdir)|" \ "${S}/usr/bin/ghcprof" else # Modify the ghc driver script to use GHC_CFLAGS echo "SCRIPT_SUBST_VARS += GHC_CFLAGS" >> "${S}/driver/ghc/Makefile" echo "GHC_CFLAGS = ${GHC_CFLAGS}" >> "${S}/driver/ghc/Makefile" sed -i -e 's|$TOPDIROPT|$TOPDIROPT $GHC_CFLAGS|' "${S}/driver/ghc/ghc.sh" if ! use ghcbootstrap; then # Relocate from /usr to ${WORKDIR}/usr sed -i -e "s|/usr|${WORKDIR}/usr|g" \ "${WORKDIR}/usr/bin/ghc-${PV}" \ "${WORKDIR}/usr/bin/ghci-${PV}" \ "${WORKDIR}/usr/bin/ghc-pkg-${PV}" \ "${WORKDIR}/usr/bin/hsc2hs" \ "${WORKDIR}/usr/$(get_libdir)/${P}/package.conf" \ || die "Relocating ghc from /usr to workdir failed" fi # If we're using the testsuite then move it to into the build tree # use test && mv "${WORKDIR}/testsuite" "${S}/" # Don't strip binaries on install. See QA warnings in bug #140369. sed -i -e 's/SRC_INSTALL_BIN_OPTS += -s//' "${S}/mk/config.mk.in" # Temporary patches that needs testing before being pushed upstream: cd "${S}" # Fix sparc split-objs linking problem epatch "${FILESDIR}/ghc-6.5-norelax.patch" fi } src_compile() { if ! use binary; then # initialize build.mk echo '# Gentoo changes' > mk/build.mk # We also need to use the GHC_CFLAGS flags when building ghc itself echo "SRC_HC_OPTS+=${GHC_CFLAGS}" >> mk/build.mk echo "SRC_CC_OPTS+=${CFLAGS} -Wa,--noexecstack" >> mk/build.mk # If you need to do a quick build then enable this bit and add debug to IUSE #if use debug; then # echo "SRC_HC_OPTS = -H32m -O -fasm" >> mk/build.mk # echo "GhcLibHcOpts =" >> mk/build.mk # echo "GhcLibWays =" >> mk/build.mk # echo "SplitObjs = NO" >> mk/build.mk #fi # We can't depend on haddock except when bootstrapping when we # must build docs and include them into the binary .tbz2 package if use ghcbootstrap && use doc; then echo XMLDocWays="html" >> mk/build.mk else echo XMLDocWays="" >> mk/build.mk # needed to prevent haddock from being called echo NO_HADDOCK_DOCS=YES >> mk/build.mk fi # circumvent a very strange bug that seems related with ghc producing too much # output while being filtered through tee (e.g. due to portage logging) # reported as bug #111183 echo "SRC_HC_OPTS+=-fno-warn-deprecations" >> mk/build.mk # GHC build system knows to build unregisterised on alpha and hppa, # but we have to tell it to build unregisterised on some arches if use alpha || use hppa || use ppc64 || use sparc; then echo "GhcUnregisterised=YES" >> mk/build.mk echo "GhcWithInterpreter=NO" >> mk/build.mk fi if use alpha || use hppa || use ppc64 || use sparc; then echo "GhcWithNativeCodeGen=NO" >> mk/build.mk echo "SplitObjs=NO" >> mk/build.mk echo "GhcRTSWays := debug" >> mk/build.mk echo "GhcNotThreaded=YES" >> mk/build.mk fi # GHC <6.8 doesn't support GCC >=4.2, split objects fails. if version_is_at_least "4.2" "$(gcc-version)"; then echo "SplitObjs=NO" >> mk/build.mk fi # Get ghc from the unpacked binary .tbz2 # except when bootstrapping we just pick ghc up off the path use ghcbootstrap || \ export PATH="${WORKDIR}/usr/bin:${PATH}" econf || die "econf failed" emake all datadir="/usr/share/doc/${P}" || die "make failed" # the explicit datadir is required to make the haddock entries # in the package.conf file point to the right place ... fi # ! use binary } src_install() { if use binary; then mkdir "${D}/opt" mv "${S}/usr" "${D}/opt/ghc" # Remove the docs if not requested if ! use doc; then rm -rf "${D}/opt/ghc/share/doc/${P}/html" \ || die "could not remove docs (P vs PF revision mismatch?)" fi # TODO: this will not be necessary after version 6.6.1 since the .tbz2 # packages will have been regenerated with package.conf.shipped files. cp -p "${D}/${GHC_PREFIX}/$(get_libdir)/${P}/package.conf"{,.shipped} \ || die "failed to copy package.conf" doenvd "${FILESDIR}/10ghc" else local insttarget="install" # We only built docs if we were bootstrapping, otherwise # we copy them out of the unpacked binary .tbz2 if use doc; then if use ghcbootstrap; then insttarget="${insttarget} install-docs" else dohtml -A haddock -r "${WORKDIR}/usr/share/doc/${P}/html/"* fi fi # the libdir0 setting is needed for amd64, and does not # harm for other arches #TODO: are any of these overrides still required? isn't econf enough? emake -j1 ${insttarget} \ prefix="${D}/usr" \ datadir="${D}/usr/share/doc/${P}" \ infodir="${D}/usr/share/info" \ mandir="${D}/usr/share/man" \ libdir0="${D}/usr/$(get_libdir)" \ || die "make ${insttarget} failed" cd "${S}" dodoc README ANNOUNCE VERSION dosbin "${FILESDIR}/ghc-updater" dobashcompletion "${FILESDIR}/ghc-bash-completion" cp -p "${D}/${GHC_PREFIX}/$(get_libdir)/${P}/package.conf"{,.shipped} \ || die "failed to copy package.conf" fi } pkg_postinst() { ghc-reregister if use binary; then elog "The envirenment has been set to use the binary distribution of" elog "GHC. In order to activate it please run:" elog " env-update && source /etc/profile" elog "Otherwise this setting will become active the next time you login" fi ewarn "IMPORTANT:" ewarn "If you have upgraded from another version of ghc or" ewarn "if you have switched between binary and source versions" ewarn "of ghc, please run:" if use binary; then ewarn " /opt/ghc/sbin/ghc-updater" else ewarn " /usr/sbin/ghc-updater" fi ewarn "to re-merge all ghc-based Haskell libraries." bash-completion_pkg_postinst } pkg_prerm() { # Overwrite the (potentially) modified package.conf with a copy of the # original one, so that it will be removed during uninstall. set_config # load GHC_PREFIX PKG="${ROOT}/${GHC_PREFIX}/$(get_libdir)/${P}/package.conf" cp -p "${PKG}"{.shipped,} [[ -f ${PKG}.old ]] && rm "${PKG}.old" }