diff options
Diffstat (limited to 'dev-lang/ghc/ghc-7.4.2.ebuild')
| -rw-r--r-- | dev-lang/ghc/ghc-7.4.2.ebuild | 639 |
1 files changed, 639 insertions, 0 deletions
diff --git a/dev-lang/ghc/ghc-7.4.2.ebuild b/dev-lang/ghc/ghc-7.4.2.ebuild new file mode 100644 index 000000000000..0706220fa159 --- /dev/null +++ b/dev-lang/ghc/ghc-7.4.2.ebuild @@ -0,0 +1,639 @@ +# Copyright 1999-2015 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Id$ + +# 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. +# +# This solution has the advantage of allowing us to retain the one +# ebuild for both packages, and thus phase out virtual/ghc. + +# 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. + +EAPI="5" + +inherit base autotools bash-completion-r1 eutils flag-o-matic multilib toolchain-funcs ghc-package versionator pax-utils + +DESCRIPTION="The Glasgow Haskell Compiler" +HOMEPAGE="http://www.haskell.org/ghc/" + +# we don't have any binaries yet +arch_binaries="" + +# sorted! +arch_binaries="$arch_binaries alpha? ( http://code.haskell.org/~slyfox/ghc-alpha/ghc-bin-${PV}-alpha.tbz2 )" +#arch_binaries="$arch_binaries arm? ( http://code.haskell.org/~slyfox/ghc-arm/ghc-bin-${PV}-arm.tbz2 )" +arch_binaries="$arch_binaries amd64? ( http://code.haskell.org/~slyfox/ghc-amd64/ghc-bin-${PV}-amd64-stable-glibc.tbz2 )" +arch_binaries="$arch_binaries ia64? ( http://code.haskell.org/~slyfox/ghc-ia64/ghc-bin-${PV}-ia64.tbz2 )" +arch_binaries="$arch_binaries ppc? ( http://code.haskell.org/~slyfox/ghc-ppc/ghc-bin-${PV}-ppc.tbz2 )" +arch_binaries="$arch_binaries ppc64? ( http://code.haskell.org/~slyfox/ghc-ppc64/ghc-bin-${PV}-ppc64.tbz2 )" +arch_binaries="$arch_binaries sparc? ( http://code.haskell.org/~slyfox/ghc-sparc/ghc-bin-${PV}-sparc.tbz2 )" +arch_binaries="$arch_binaries x86? ( http://code.haskell.org/~slyfox/ghc-x86/ghc-bin-${PV}-x86-stable-glibc.tbz2 )" + +# various ports: +#arch_binaries="$arch_binaries x86-fbsd? ( http://code.haskell.org/~slyfox/ghc-x86-fbsd/ghc-bin-${PV}-x86-fbsd.tbz2 )" + +# 0 - yet +yet_binary() { + case "${ARCH}" in + alpha) return 0 ;; + #arm) + # ewarn "ARM binary is built on armv5tel-eabi toolchain. Use with caution." + # return 0 + #;; + amd64) return 0 ;; + ia64) return 0 ;; + ppc) return 0 ;; + ppc64) return 0 ;; + sparc) return 0 ;; + x86) return 0 ;; + *) return 1 ;; + esac +} + +SRC_URI="!binary? ( http://www.haskell.org/ghc/dist/${PV}/${P}-src.tar.bz2 )" +[[ -n $arch_binaries ]] && SRC_URI+=" !ghcbootstrap? ( $arch_binaries )" +LICENSE="BSD" +SLOT="0/${PV}" +# ghc on ia64 needs gcc to support -mcmodel=medium (or some dark hackery) to avoid TOC overflow +KEYWORDS="alpha amd64 ia64 ppc ppc64 sparc x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos ~sparc-solaris ~x86-solaris" +IUSE="doc ghcbootstrap ghcmakebinary +gmp llvm" +IUSE+=" binary" # don't forget about me later! +IUSE+=" elibc_glibc" # system stuff + +RDEPEND=" + !kernel_Darwin? ( >=sys-devel/gcc-2.95.3 ) + kernel_linux? ( >=sys-devel/binutils-2.17 ) + kernel_SunOS? ( >=sys-devel/binutils-2.17 ) + >=dev-lang/perl-5.6.1 + >=dev-libs/gmp-5 + virtual/libffi + !<dev-haskell/haddock-2.10.0 + sys-libs/ncurses[unicode]" +# earlier versions than 2.4.2 of haddock only works with older ghc releases + +# force dependency on >=gmp-5, even if >=gmp-4.1 would be enough. this is due to +# that we want the binaries to use the latest versioun available, and not to be +# built against gmp-4 + +# similar for glibc. we have bootstrapped binaries against glibc-2.14 +DEPEND="${RDEPEND} + ghcbootstrap? ( + doc? ( app-text/docbook-xml-dtd:4.2 + app-text/docbook-xml-dtd:4.5 + app-text/docbook-xsl-stylesheets + >=dev-libs/libxslt-1.1.2 ) ) + !ghcbootstrap? ( !prefix? ( elibc_glibc? ( >=sys-libs/glibc-2.14 ) ) )" + +PDEPEND="!ghcbootstrap? ( =app-admin/haskell-updater-1.2* )" +PDEPEND=" + ${PDEPEND} + llvm? ( sys-devel/llvm )" + +# ia64 fails to return from STG GMP primitives (stage2 always SIGSEGVs) +REQUIRED_USE="ia64? ( !gmp )" + +use binary && QA_PREBUILT="*" + +append-ghc-cflags() { + local flag compile assemble link + for flag in $*; do + case ${flag} in + compile) compile="yes";; + assemble) assemble="yes";; + link) link="yes";; + *) + [[ ${compile} ]] && GHC_FLAGS="${GHC_FLAGS} -optc${flag}" CFLAGS="${CFLAGS} ${flag}" + [[ ${assemble} ]] && GHC_FLAGS="${GHC_FLAGS} -opta${flag}" CFLAGS="${CFLAGS} ${flag}" + [[ ${link} ]] && GHC_FLAGS="${GHC_FLAGS} -optl${flag}" FILTERED_LDFLAGS="${FILTERED_LDFLAGS} ${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 + + # Cmm can't parse line numbers #482086 + replace-flags -ggdb[3-9] -ggdb2 + + GHC_FLAGS="" + 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 + + FILTERED_LDFLAGS="" + for flag in ${LDFLAGS}; do + case ${flag} in + # Pass the canary. we don't quite respect LDFLAGS, but we have an excuse! + "-Wl,--hash-style="*) append-ghc-cflags link ${flag};; + + # Ignore all other 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 + + # prevent from failind building unregisterised ghc: + # http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg171602.html + use ppc64 && append-ghc-cflags compile -mminimal-toc + # fix the similar issue as ppc64 TOC on ia64. ia64 has limited size of small data + # currently ghc fails to build haddock + # http://osdir.com/ml/gnu.binutils.bugs/2004-10/msg00050.html + use ia64 && append-ghc-cflags compile -G0 + + # Unfortunately driver/split/ghc-split.lprl is dumb + # enough to preserve stack marking for each split object + # and it flags stack marking violation: + # * !WX --- --- usr/lib64/ghc-7.4.1/base-4.5.0.0/libHSbase-4.5.0.0.a:Fingerprint__1.o + # * !WX --- --- usr/lib64/ghc-7.4.1/base-4.5.0.0/libHSbase-4.5.0.0.a:Fingerprint__2.o + # * !WX --- --- usr/lib64/ghc-7.4.1/base-4.5.0.0/libHSbase-4.5.0.0.a:Fingerprint__3.o + case $($(tc-getAS) -v 2>&1 </dev/null) in + *"GNU Binutils"*) # GNU ld + append-ghc-cflags compile assemble -Wa,--noexecstack + ;; + esac +} + +# substitutes string $1 to $2 in files $3 $4 ... +relocate_path() { + local from=$1 + local to=$2 + shift 2 + local file= + for file in "$@" + do + sed -i -e "s|$from|$to|g" \ + "$file" || die "path relocation failed for '$file'" + done +} + +# changes hardcoded ghc paths and updates package index +# $1 - new absolute root path +relocate_ghc() { + local to=$1 + + # backup original script to use it later after relocation + local gp_back="${T}/ghc-pkg-${PV}-orig" + cp "${WORKDIR}/usr/bin/ghc-pkg-${PV}" "$gp_back" || die "unable to backup ghc-pkg wrapper" + + # Relocate from /usr to ${EPREFIX}/usr + relocate_path "/usr" "${to}/usr" \ + "${WORKDIR}/usr/bin/ghc-${PV}" \ + "${WORKDIR}/usr/bin/ghci-${PV}" \ + "${WORKDIR}/usr/bin/ghc-pkg-${PV}" \ + "${WORKDIR}/usr/bin/hsc2hs" \ + "${WORKDIR}/usr/$(get_libdir)/${P}/package.conf.d/"* + + # this one we will use to regenerate cache + # so it shoult point to current tree location + relocate_path "/usr" "${WORKDIR}/usr" "$gp_back" + + if use prefix; then + # and insert LD_LIBRARY_PATH entry to EPREFIX dir tree + # TODO: add the same for darwin's CHOST and it's DYLD_ + local new_ldpath='LD_LIBRARY_PATH="'${EPREFIX}/$(get_libdir):${EPREFIX}/usr/$(get_libdir)'${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"\nexport LD_LIBRARY_PATH' + sed -i -e '2i'"$new_ldpath" \ + "${WORKDIR}/usr/bin/ghc-${PV}" \ + "${WORKDIR}/usr/bin/ghci-${PV}" \ + "${WORKDIR}/usr/bin/ghc-pkg-${PV}" \ + "$gp_back" \ + "${WORKDIR}/usr/bin/hsc2hs" \ + || die "Adding LD_LIBRARY_PATH for wrappers failed" + fi + + # regenerate the binary package cache + "$gp_back" recache || die "failed to update cache after relocation" + rm "$gp_back" +} + +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 $(type -P ghc) ]] && \ + die "Could not find a ghc to bootstrap with." + else + if ! yet_binary; then + eerror "Please try emerging with USE=ghcbootstrap and report build" + eerror "sucess or failure to the haskell team (haskell@gentoo.org)" + die "No binary available for '${ARCH}' arch yet, USE=ghcbootstrap" + fi + fi +} + +src_unpack() { + # Create the ${S} dir if we're using the binary version + use binary && mkdir "${S}" + + # the Solaris and Darwin binaries from ghc (maeder) need to be + # unpacked separately, so prevent them from being unpacked + local ONLYA=${A} + case ${CHOST} in + *-darwin* | *-solaris*) ONLYA=${P}-src.tar.bz2 ;; + esac + unpack ${ONLYA} +} + +src_prepare() { + ghc_setup_cflags + + if ! use ghcbootstrap && [[ ${CHOST} != *-darwin* && ${CHOST} != *-solaris* ]]; then + # Modify the wrapper script from the binary tarball to use GHC_FLAGS. + # See bug #313635. + sed -i -e "s|\"\$topdir\"|\"\$topdir\" ${GHC_FLAGS}|" \ + "${WORKDIR}/usr/bin/ghc-${PV}" + + # allow hardened users use vanilla binary to bootstrap ghc + # ghci uses mmap with rwx protection at it implements dynamic + # linking on it's own (bug #299709) + pax-mark -m "${WORKDIR}/usr/$(get_libdir)/${P}/ghc" + fi + + if use binary; then + if use prefix; then + relocate_ghc "${EPREFIX}" + fi + + # Move unpacked files to the expected place + mv "${WORKDIR}/usr" "${S}" + else + if ! use ghcbootstrap; then + case ${CHOST} in + *-darwin* | *-solaris*) + mkdir "${WORKDIR}"/ghc-bin-installer || die + pushd "${WORKDIR}"/ghc-bin-installer > /dev/null || die + use sparc-solaris && unpack ghc-6.10.4-sparc-sun-solaris2.tar.bz2 + use x86-solaris && unpack ghc-7.0.3-i386-unknown-solaris2.tar.bz2 + use x86-macos && unpack ghc-7.4.1-i386-apple-darwin.tar.bz2 + use x64-macos && unpack ghc-7.4.1-x86_64-apple-darwin.tar.bz2 + popd > /dev/null + + pushd "${WORKDIR}"/ghc-bin-installer/ghc-[67].?*.? > /dev/null || die + # fix the binaries so they run, on Solaris we need an + # LD_LIBRARY_PATH which has our prefix libdirs, on + # Darwin we need to replace the frameworks with our libs + # from the prefix fix before installation, because some + # of the tools are actually used during configure/make + if [[ ${CHOST} == *-solaris* ]] ; then + export LD_LIBRARY_PATH="${EPREFIX}/$(get_libdir):${EPREFIX}/usr/$(get_libdir):${LD_LIBRARY_PATH}" + elif [[ ${CHOST} == *-darwin* ]] ; then + local readline_framework=GNUreadline.framework/GNUreadline + local gmp_framework=/opt/local/lib/libgmp.10.dylib + local ncurses_file=/opt/local/lib/libncurses.5.dylib + for binary in $(scanmacho -BRE MH_EXECUTE -F '%F' .) ; do + install_name_tool -change \ + ${readline_framework} \ + "${EPREFIX}"/lib/libreadline.dylib \ + ${binary} || die + install_name_tool -change \ + ${gmp_framework} \ + "${EPREFIX}"/usr/lib/libgmp.dylib \ + ${binary} || die + install_name_tool -change \ + ${ncurses_file} \ + "${EPREFIX}"/usr/lib/libncurses.dylib \ + ${binary} || die + done + # we don't do frameworks! + sed -i \ + -e 's/\(frameworks = \)\["GMP"\]/\1[]/g' \ + -e 's/\(extraLibraries = \)\["m"\]/\1["m","gmp"]/g' \ + rts/package.conf.in || die + fi + + # it is autoconf, but we really don't want to give it too + # much arguments, in fact we do the make in-place anyway + ./configure --prefix="${WORKDIR}"/usr || die + make install || die + popd > /dev/null + ;; + *) + relocate_ghc "${WORKDIR}" + ;; + esac + fi + + sed -i -e "s|\"\$topdir\"|\"\$topdir\" ${GHC_FLAGS}|" \ + "${S}/ghc/ghc.wrapper" + + cd "${S}" # otherwise epatch will break + + epatch "${FILESDIR}"/${PN}-7.0.4-CHOST-prefix.patch + + epatch "${FILESDIR}"/${PN}-7.0.4-darwin8.patch + # failed to apply. FIXME + #epatch "${FILESDIR}"/${PN}-6.12.3-mach-o-relocation-limit.patch + + epatch "${FILESDIR}"/${PN}-7.4-rc2-macos-prefix-respect-gcc.patch + epatch "${FILESDIR}"/${PN}-7.4.1-darwin-CHOST.patch + epatch "${FILESDIR}"/${PN}-7.2.1-freebsd-CHOST.patch + + we_want_libffi_workaround() { + use ghcmakebinary && return 1 + + # pick only registerised arches + # http://bugs.gentoo.org/463814 + use amd64 && return 0 + use x86 && return 0 + return 1 + } + # one mode external depend with unstable ABI be careful to stash it + # avoid external libffi runtime when we build binaries + we_want_libffi_workaround && epatch "${FILESDIR}"/${PN}-7.4.2-system-libffi.patch + + epatch "${FILESDIR}"/${PN}-7.4.1-ticket-7339-fix-unaligned-unreg.patch + + if use prefix; then + # Make configure find docbook-xsl-stylesheets from Prefix + sed -i -e '/^FP_DIR_DOCBOOK_XSL/s:\[.*\]:['"${EPREFIX}"'/usr/share/sgml/docbook/xsl-stylesheets/]:' utils/haddock/doc/configure.ac || die + fi + + cd "${S}"/libraries/terminfo + # bug #454216 + epatch "${FILESDIR}"/terminfo-0.3.2.5-tinfo.patch + + cd "${S}" + # as we have changed the build system + eautoreconf + fi +} + +src_configure() { + if ! use binary; then + + # initialize build.mk + echo '# Gentoo changes' > mk/build.mk + + # Put docs into the right place, ie /usr/share/doc/ghc-${PV} + echo "docdir = ${EPREFIX}/usr/share/doc/${P}" >> mk/build.mk + echo "htmldir = ${EPREFIX}/usr/share/doc/${P}" >> mk/build.mk + + # We also need to use the GHC_FLAGS flags when building ghc itself + echo "SRC_HC_OPTS+=${GHC_FLAGS}" >> mk/build.mk + echo "SRC_CC_OPTS+=${CFLAGS}" >> mk/build.mk + echo "SRC_LD_OPTS+=${FILTERED_LDFLAGS}" >> mk/build.mk + + # 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 "BUILD_DOCBOOK_PDF = NO" >> mk/build.mk + echo "BUILD_DOCBOOK_PS = NO" >> mk/build.mk + echo "BUILD_DOCBOOK_HTML = YES" >> mk/build.mk + echo "HADDOCK_DOCS = YES" >> mk/build.mk + else + echo "BUILD_DOCBOOK_PDF = NO" >> mk/build.mk + echo "BUILD_DOCBOOK_PS = NO" >> mk/build.mk + echo "BUILD_DOCBOOK_HTML = NO" >> mk/build.mk + echo "HADDOCK_DOCS = NO" >> 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+=-w" >> mk/build.mk + + # some arches do not support ELF parsing for ghci module loading + # PPC64: never worked (should be easy to implement) + # alpha: never worked + # arm: unimplemented or never worked + if use alpha || use ppc64 || use arm; then + echo "GhcWithInterpreter=NO" >> mk/build.mk + fi + + # we have to tell it to build unregisterised on some arches + # ppc64: EvilMangler currently does not understand some TOCs + # ia64: EvilMangler bitrot + if use alpha || use ia64 || use ppc64; then + echo "GhcUnregisterised=YES" >> mk/build.mk + 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 + + # arm: no EvilMangler support, no NCG support + if use arm; then + echo "GhcUnregisterised=YES" >> mk/build.mk + echo "GhcWithNativeCodeGen=NO" >> mk/build.mk + fi + + # Have "ld -r --relax" problem with split-objs on sparc: + if use sparc; then + echo "SplitObjs=NO" >> mk/build.mk + fi + + if ! use llvm; then + echo "GhcWithLlvmCodeGen=NO" >> mk/build.mk + fi + + # allows overriding build flavours for libraries: + # v - vanilla (static libs) + # p - profiled + # dyn - shared libraries + # example: GHC_LIBRARY_WAYS="v dyn" + if [[ -n ${GHC_LIBRARY_WAYS} ]]; then + echo "GhcLibWays=${GHC_LIBRARY_WAYS}" >> mk/build.mk + fi + + # Get ghc from the unpacked binary .tbz2 + # except when bootstrapping we just pick ghc up off the path + if ! use ghcbootstrap; then + export PATH="${WORKDIR}/usr/bin:${PATH}" + fi + + if use gmp; then + echo "INTEGER_LIBRARY=integer-gmp" >> mk/build.mk + else + echo "INTEGER_LIBRARY=integer-simple" >> mk/build.mk + fi + + # Since GHC 6.12.2 the GHC wrappers store which GCC version GHC was + # compiled with, by saving the path to it. The purpose is to make sure + # that GHC will use the very same gcc version when it compiles haskell + # sources, as the extra-gcc-opts files contains extra gcc options which + # match only this GCC version. + # However, this is not required in Gentoo, as only modern GCCs are used + # (>4). + # Instead, this causes trouble when for example ccache is used during + # compilation, but we don't want the wrappers to point to ccache. + # Due to the above, we simply set GCC to be "gcc". When compiling ghc it + # might point to ccache, once installed it will point to the users + # regular gcc. + + econf --with-gcc=gcc || die "econf failed" + fi # ! use binary +} + +src_compile() { + if ! use binary; then + limit_jobs() { + if [[ -n ${I_DEMAND_MY_CORES_LOADED} ]]; then + ewarn "You have requested parallel build which is known to break." + ewarn "Please report all breakages upstream." + return + fi + echo $@ + } + # ghc massively parallel make: #409631, #409873 + # but let users screw it by setting 'I_DEMAND_MY_CORES_LOADED' + emake $(limit_jobs -j1) all + fi # ! use binary +} + +src_install() { + if use binary; then + use prefix && mkdir -p "${ED}" + mv "${S}/usr" "${ED}" + + # Remove the docs if not requested + if ! use doc; then + rm -rf "${ED}/usr/share/doc/${P}/*/" \ + "${ED}/usr/share/doc/${P}/*.html" \ + || die "could not remove docs (P vs PF revision mismatch?)" + fi + 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 && ! use ghcbootstrap; then + mkdir -p "${ED}/usr/share/doc" + mv "${WORKDIR}/usr/share/doc/${P}" "${ED}/usr/share/doc" \ + || die "failed to copy docs" + else + dodoc "${S}/README" "${S}/ANNOUNCE" "${S}/LICENSE" "${S}/VERSION" + fi + + emake -j1 ${insttarget} \ + DESTDIR="${D}" \ + || die "make ${insttarget} failed" + + # remove wrapper and linker + rm -f "${ED}"/usr/bin/haddock* + + # ghci uses mmap with rwx protection at it implements dynamic + # linking on it's own (bug #299709) + # so mark resulting binary + pax-mark -m "${ED}/usr/$(get_libdir)/${P}/ghc" + + dobashcomp "${FILESDIR}/ghc-bash-completion" + + fi + + # path to the package.cache + local package_confdir="${ED}/usr/$(get_libdir)/${P}/package.conf.d" + PKGCACHE="${package_confdir}"/package.cache + + cp -pR "${package_confdir}"{,.initial} || die "failed to backup intial package.conf.d" + + # copy the package.conf, including timestamp, save it so we later can put it + # back before uninstalling, or when upgrading. + cp -p "${PKGCACHE}"{,.shipped} \ + || die "failed to copy package.conf.d/package.cache" +} + +pkg_preinst() { + # have we got an earlier version of ghc installed? + if has_version "<${CATEGORY}/${PF}"; then + haskell_updater_warn="1" + fi +} + +pkg_postinst() { + ghc-reregister + + # path to the package.cache + PKGCACHE="${EROOT}/usr/$(get_libdir)/${P}/package.conf.d/package.cache" + + # give the cache a new timestamp, it must be as recent as + # the package.conf.d directory. + touch "${PKGCACHE}" + + if [[ "${haskell_updater_warn}" == "1" ]]; then + ewarn + ewarn "\e[1;31m************************************************************************\e[0m" + ewarn + ewarn "You have just upgraded from an older version of GHC." + ewarn "You may have to run" + ewarn " 'haskell-updater --upgrade'" + ewarn "to rebuild all ghc-based Haskell libraries." + ewarn + ewarn "\e[1;31m************************************************************************\e[0m" + ewarn + fi +} + +pkg_prerm() { + # Be very careful here... Call order when upgrading is (according to PMS): + # * src_install for new package + # * pkg_preinst for new package + # * pkg_postinst for new package + # * pkg_prerm for the package being replaced + # * pkg_postrm for the package being replaced + # so you'll actually be touching the new packages files, not the one you + # uninstall, due to that or installation directory ${P} will be the same for + # both packages. + + # Call order for reinstalling is (according to PMS): + # * src_install + # * pkg_preinst + # * pkg_prerm for the package being replaced + # * pkg_postrm for the package being replaced + # * pkg_postinst + + # Overwrite the modified package.cache with a copy of the + # original one, so that it will be removed during uninstall. + + PKGCACHE="${EROOT}/usr/$(get_libdir)/${P}/package.conf.d/package.cache" + rm -rf "${PKGCACHE}" + + cp -p "${PKGCACHE}"{.shipped,} +} + +pkg_postrm() { + ghc-package_pkg_postrm +} |