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# Copyright 1999-2012 Gentoo Foundation |
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# Distributed under the terms of the GNU General Public License v2 |
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# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.35 2012/11/16 15:47:17 slyfox Exp $ |
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|
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# @ECLASS: haskell-cabal.eclass |
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# @MAINTAINER: |
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# Haskell herd <haskell@gentoo.org> |
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# @AUTHOR: |
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# Original author: Andres Loeh <kosmikus@gentoo.org> |
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# Original author: Duncan Coutts <dcoutts@gentoo.org> |
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# @BLURB: for packages that make use of the Haskell Common Architecture for Building Applications and Libraries (cabal) |
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# @DESCRIPTION: |
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# Basic instructions: |
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# |
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# Before inheriting the eclass, set CABAL_FEATURES to |
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# reflect the tools and features that the package makes |
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# use of. |
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# |
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# Currently supported features: |
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# haddock -- for documentation generation |
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# hscolour -- generation of colourised sources |
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# hoogle -- generation of documentation search index |
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# alex -- lexer/scanner generator |
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# happy -- parser generator |
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# c2hs -- C interface generator |
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# cpphs -- C preprocessor clone written in Haskell |
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# profile -- if package supports to build profiling-enabled libraries |
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# bootstrap -- only used for the cabal package itself |
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# bin -- the package installs binaries |
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# lib -- the package installs libraries |
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# nocabaldep -- don't add dependency on cabal. |
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# only used for packages that _must_ not pull the dependency |
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# on cabal, but still use this eclass (e.g. haskell-updater). |
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# test-suite -- add support for cabal test-suites (introduced in Cabal-1.8) |
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|
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inherit ghc-package multilib |
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|
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# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS |
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# @DESCRIPTION: |
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# User-specified additional parameters passed to 'setup configure'. |
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# example: /etc/make.conf: CABAL_EXTRA_CONFIGURE_FLAGS=--enable-shared |
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: ${CABAL_EXTRA_CONFIGURE_FLAGS:=} |
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|
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# @ECLASS-VARIABLE: CABAL_EXTRA_BUILD_FLAGS |
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# @DESCRIPTION: |
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# User-specified additional parameters passed to 'setup build'. |
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# example: /etc/make.conf: CABAL_EXTRA_BUILD_FLAGS=-v |
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: ${CABAL_EXTRA_BUILD_FLAGS:=} |
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|
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# @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS |
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# @DESCRIPTION: |
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# User-specified additional parameters for ghc when building |
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# _only_ 'setup' binary bootstrap. |
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# example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make |
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# linking 'setup' faster. |
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: ${GHC_BOOTSTRAP_FLAGS:=} |
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|
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# @ECLASS-VARIABLE: CABAL_DEBUG_LOOSENING |
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# @DESCRIPTION: |
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# Show debug output for 'cabal_chdeps' function if set. |
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# Needs working 'diff'. |
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: ${CABAL_DEBUG_LOOSENING:=} |
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|
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HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install" |
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|
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case "${EAPI:-0}" in |
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2|3|4|5) HASKELL_CABAL_EXPF+=" src_configure" ;; |
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*) ;; |
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esac |
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|
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EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF} |
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|
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for feature in ${CABAL_FEATURES}; do |
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case ${feature} in |
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haddock) CABAL_USE_HADDOCK=yes;; |
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hscolour) CABAL_USE_HSCOLOUR=yes;; |
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hoogle) CABAL_USE_HOOGLE=yes;; |
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alex) CABAL_USE_ALEX=yes;; |
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happy) CABAL_USE_HAPPY=yes;; |
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c2hs) CABAL_USE_C2HS=yes;; |
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cpphs) CABAL_USE_CPPHS=yes;; |
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profile) CABAL_USE_PROFILE=yes;; |
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bootstrap) CABAL_BOOTSTRAP=yes;; |
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bin) CABAL_HAS_BINARIES=yes;; |
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lib) CABAL_HAS_LIBRARIES=yes;; |
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nocabaldep) CABAL_FROM_GHC=yes;; |
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test-suite) CABAL_TEST_SUITE=yes;; |
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*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; |
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esac |
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done |
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|
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if [[ -n "${CABAL_USE_HADDOCK}" ]]; then |
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IUSE="${IUSE} doc" |
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# don't require depend on itself to build docs. |
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# ebuild bootstraps docs from just built binary |
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[[ ${CATEGORY}/${PN} = "dev-haskell/haddock" ]] || DEPEND="${DEPEND} doc? ( dev-haskell/haddock )" |
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fi |
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|
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if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then |
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IUSE="${IUSE} hscolour" |
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DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )" |
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fi |
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|
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if [[ -n "${CABAL_USE_ALEX}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/alex" |
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fi |
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|
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if [[ -n "${CABAL_USE_HAPPY}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/happy" |
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fi |
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|
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if [[ -n "${CABAL_USE_C2HS}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/c2hs" |
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fi |
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|
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if [[ -n "${CABAL_USE_CPPHS}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/cpphs" |
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fi |
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|
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if [[ -n "${CABAL_USE_PROFILE}" ]]; then |
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IUSE="${IUSE} profile" |
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fi |
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|
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if [[ -n "${CABAL_TEST_SUITE}" ]]; then |
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IUSE="${IUSE} test" |
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fi |
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|
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# We always use a standalone version of Cabal, rather than the one that comes |
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# with GHC. But of course we can't depend on cabal when building cabal itself. |
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if [[ -z ${CABAL_MIN_VERSION} ]]; then |
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CABAL_MIN_VERSION=1.1.4 |
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fi |
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if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then |
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DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}" |
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fi |
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|
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# Libraries require GHC to be installed. |
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if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then |
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RDEPEND="${RDEPEND} dev-lang/ghc" |
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fi |
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|
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# returns the version of cabal currently in use |
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_CABAL_VERSION_CACHE="" |
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cabal-version() { |
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if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then |
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if [[ "${CABAL_BOOTSTRAP}" ]]; then |
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# We're bootstrapping cabal, so the cabal version is the version |
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# of this package itself. |
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_CABAL_VERSION_CACHE="${PV}" |
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elif [[ "${CABAL_FROM_GHC}" ]]; then |
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local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*) |
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# /path/to/ghc/Cabal-${VER} -> ${VER} |
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_CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}" |
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else |
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# We ask portage, not ghc, so that we only pick up |
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# portage-installed cabal versions. |
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_CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)" |
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fi |
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fi |
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echo "${_CABAL_VERSION_CACHE}" |
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} |
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|
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cabal-bootstrap() { |
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local setupmodule |
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local cabalpackage |
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if [[ -f "${S}/Setup.lhs" ]]; then |
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setupmodule="${S}/Setup.lhs" |
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elif [[ -f "${S}/Setup.hs" ]]; then |
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setupmodule="${S}/Setup.hs" |
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else |
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die "No Setup.lhs or Setup.hs found" |
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fi |
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|
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if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then |
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eerror "The package dev-haskell/cabal is not correctly installed for" |
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eerror "the currently active version of ghc ($(ghc-version)). Please" |
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eerror "run haskell-updater or re-build dev-haskell/cabal." |
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die "cabal is not correctly installed" |
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fi |
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|
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# We build the setup program using the latest version of |
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# cabal that we have installed |
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cabalpackage=Cabal-$(cabal-version) |
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einfo "Using cabal-$(cabal-version)." |
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|
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make_setup() { |
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set -- -package "${cabalpackage}" --make "${setupmodule}" \ |
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${GHC_BOOTSTRAP_FLAGS} \ |
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"$@" \ |
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-o setup |
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echo $(ghc-getghc) ${HCFLAGS} "$@" |
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$(ghc-getghc) "$@" |
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} |
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if $(ghc-supports-shared-libraries); then |
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# # some custom build systems might use external libraries, |
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# # for which we don't have shared libs, so keep static fallback |
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# bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3 |
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# http://hackage.haskell.org/trac/ghc/ticket/7062 |
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# http://hackage.haskell.org/trac/ghc/ticket/3072 |
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# ghc does not set RPATH for extralibs, thus we do it ourselves by hands |
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einfo "Prepending $(ghc-libdir) to LD_LIBRARY_PATH" |
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if [[ ${CHOST} != *-darwin* ]]; then |
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LD_LIBRARY_PATH="$(ghc-libdir)${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}" |
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export LD_LIBRARY_PATH |
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else |
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DYLD_LIBRARY_PATH="$(ghc-libdir)${DYLD_LIBRARY_PATH:+:}${DYLD_LIBRARY_PATH}" |
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export DYLD_LIBRARY_PATH |
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fi |
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{ make_setup -dynamic "$@" && ./setup --help >/dev/null; } || |
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make_setup "$@" || die "compiling ${setupmodule} failed" |
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else |
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make_setup "$@" || die "compiling ${setupmodule} failed" |
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fi |
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} |
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|
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cabal-mksetup() { |
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local setupdir |
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|
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if [[ -n $1 ]]; then |
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setupdir=$1 |
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else |
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setupdir=${S} |
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fi |
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|
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rm -f "${setupdir}"/Setup.{lhs,hs} |
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|
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echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \ |
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> $setupdir/Setup.hs || die "failed to create default Setup.hs" |
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} |
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|
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cabal-hscolour() { |
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set -- hscolour "$@" |
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echo ./setup "$@" |
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./setup "$@" || die "setup hscolour failed" |
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} |
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|
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cabal-haddock() { |
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set -- haddock "$@" |
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echo ./setup "$@" |
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./setup "$@" || die "setup haddock failed" |
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} |
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|
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cabal-hscolour-haddock() { |
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# --hyperlink-source implies calling 'setup hscolour' |
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set -- haddock --hyperlink-source |
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echo ./setup "$@" |
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./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed" |
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} |
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|
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cabal-configure() { |
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has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX= |
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|
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if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then |
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cabalconf="${cabalconf} --with-haddock=${EPREFIX}/usr/bin/haddock" |
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fi |
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if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then |
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cabalconf="${cabalconf} --enable-library-profiling" |
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fi |
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if [[ -n "${CABAL_USE_ALEX}" ]]; then |
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cabalconf="${cabalconf} --with-alex=${EPREFIX}/usr/bin/alex" |
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fi |
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|
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if [[ -n "${CABAL_USE_HAPPY}" ]]; then |
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cabalconf="${cabalconf} --with-happy=${EPREFIX}/usr/bin/happy" |
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fi |
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|
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if [[ -n "${CABAL_USE_C2HS}" ]]; then |
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cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs" |
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fi |
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if [[ -n "${CABAL_USE_CPPHS}" ]]; then |
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cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs" |
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fi |
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if [[ -n "${CABAL_TEST_SUITE}" ]]; then |
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cabalconf="${cabalconf} $(use_enable test tests)" |
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fi |
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|
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local option |
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for option in ${HCFLAGS} |
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do |
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cabalconf+=" --ghc-option=$option" |
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done |
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|
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# Building GHCi libs on ppc64 causes "TOC overflow". |
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if use ppc64; then |
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cabalconf="${cabalconf} --disable-library-for-ghci" |
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fi |
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|
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# currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217) |
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# so translate LDFLAGS to ghc parameters (without filtering) |
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local flag |
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for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done |
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|
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# disable executable stripping for the executables, as portage will |
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# strip by itself, and pre-stripping gives a QA warning. |
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# cabal versions previous to 1.4 does not strip executables, and does |
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# not accept the flag. |
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# this fixes numerous bugs, amongst them; |
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# bug #251881, bug #251882, bug #251884, bug #251886, bug #299494 |
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cabalconf="${cabalconf} --disable-executable-stripping" |
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|
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cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}" |
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# As of Cabal 1.2, configure is quite quiet. For diagnostic purposes |
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# it's better if the configure chatter is in the build logs: |
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cabalconf="${cabalconf} --verbose" |
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|
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# We build shared version of our Cabal where ghc ships it's shared |
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# version of it. We will link ./setup as dynamic binary againt Cabal later. |
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[[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \ |
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$(ghc-supports-shared-libraries) && \ |
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cabalconf="${cabalconf} --enable-shared" |
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|
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if $(ghc-supports-shared-libraries); then |
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# maybe a bit lower |
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if version_is_at_least "7.7.20121114" "$(ghc-version)"; then |
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cabalconf="${cabalconf} --enable-shared" |
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fi |
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fi |
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|
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set -- configure \ |
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--ghc --prefix="${EPREFIX}"/usr \ |
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--with-compiler="$(ghc-getghc)" \ |
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--with-hc-pkg="$(ghc-getghcpkg)" \ |
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--prefix="${EPREFIX}"/usr \ |
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--libdir="${EPREFIX}"/usr/$(get_libdir) \ |
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--libsubdir=${P}/ghc-$(ghc-version) \ |
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--datadir="${EPREFIX}"/usr/share/ \ |
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--datasubdir=${P}/ghc-$(ghc-version) \ |
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${cabalconf} \ |
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${CABAL_CONFIGURE_FLAGS} \ |
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${CABAL_EXTRA_CONFIGURE_FLAGS} \ |
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"$@" |
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echo ./setup "$@" |
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./setup "$@" || die "setup configure failed" |
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} |
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|
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cabal-build() { |
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unset LANG LC_ALL LC_MESSAGES |
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set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@" |
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echo ./setup "$@" |
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./setup "$@" \ |
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|| die "setup build failed" |
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} |
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|
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cabal-copy() { |
| 345 |
has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D} |
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|
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set -- copy --destdir="${D}" "$@" |
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echo ./setup "$@" |
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./setup "$@" || die "setup copy failed" |
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|
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# cabal is a bit eager about creating dirs, |
| 352 |
# so remove them if they are empty |
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rmdir "${ED}/usr/bin" 2> /dev/null |
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} |
| 355 |
|
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cabal-pkg() { |
| 357 |
# This does not actually register since we're using true instead |
| 358 |
# of ghc-pkg. So it just leaves the .conf file and we can |
| 359 |
# register that ourselves (if it exists). |
| 360 |
|
| 361 |
if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then |
| 362 |
# Newer cabal can generate a package conf for us: |
| 363 |
./setup register --gen-pkg-config="${T}/${P}.conf" |
| 364 |
ghc-setup-pkg "${T}/${P}.conf" |
| 365 |
ghc-install-pkg |
| 366 |
fi |
| 367 |
} |
| 368 |
|
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# Some cabal libs are bundled along with some versions of ghc |
| 370 |
# eg filepath-1.0 comes with ghc-6.6.1 |
| 371 |
# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that |
| 372 |
# when building with this version of ghc, the ebuild is a dummy that is it will |
| 373 |
# install no files since the package is already included with ghc. |
| 374 |
# However portage still records the dependency and we can upgrade the package |
| 375 |
# to a later one that's not included with ghc. |
| 376 |
# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1". |
| 377 |
cabal-is-dummy-lib() { |
| 378 |
for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do |
| 379 |
[[ "$(ghc-version)" == ${version} ]] && return 0 |
| 380 |
done |
| 381 |
return 1 |
| 382 |
} |
| 383 |
|
| 384 |
# exported function: check if cabal is correctly installed for |
| 385 |
# the currently active ghc (we cannot guarantee this with portage) |
| 386 |
haskell-cabal_pkg_setup() { |
| 387 |
if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then |
| 388 |
eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES." |
| 389 |
fi |
| 390 |
if [[ -n "${CABAL_UNKNOWN}" ]]; then |
| 391 |
eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}" |
| 392 |
fi |
| 393 |
if cabal-is-dummy-lib; then |
| 394 |
einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install." |
| 395 |
fi |
| 396 |
} |
| 397 |
|
| 398 |
haskell-cabal_src_configure() { |
| 399 |
cabal-is-dummy-lib && return |
| 400 |
|
| 401 |
pushd "${S}" > /dev/null |
| 402 |
|
| 403 |
cabal-bootstrap |
| 404 |
|
| 405 |
cabal-configure "$@" |
| 406 |
|
| 407 |
popd > /dev/null |
| 408 |
} |
| 409 |
|
| 410 |
# exported function: nice alias |
| 411 |
cabal_src_configure() { |
| 412 |
haskell-cabal_src_configure "$@" |
| 413 |
} |
| 414 |
|
| 415 |
# exported function: cabal-style bootstrap configure and compile |
| 416 |
cabal_src_compile() { |
| 417 |
# it's a common mistake when one bumps ebuild to EAPI="2" (and upper) |
| 418 |
# and forgets to separate src_compile() to src_configure()/src_compile(). |
| 419 |
# Such error leads to default src_configure and we lose all passed flags. |
| 420 |
if ! has "${EAPI:-0}" 0 1; then |
| 421 |
local passed_flag |
| 422 |
for passed_flag in "$@"; do |
| 423 |
[[ ${passed_flag} == --flags=* ]] && \ |
| 424 |
eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()" |
| 425 |
done |
| 426 |
fi |
| 427 |
|
| 428 |
cabal-is-dummy-lib && return |
| 429 |
|
| 430 |
has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@" |
| 431 |
cabal-build |
| 432 |
|
| 433 |
if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then |
| 434 |
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then |
| 435 |
# hscolour and haddock |
| 436 |
cabal-hscolour-haddock |
| 437 |
else |
| 438 |
# just haddock |
| 439 |
cabal-haddock |
| 440 |
fi |
| 441 |
else |
| 442 |
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then |
| 443 |
# just hscolour |
| 444 |
cabal-hscolour |
| 445 |
fi |
| 446 |
fi |
| 447 |
} |
| 448 |
|
| 449 |
haskell-cabal_src_compile() { |
| 450 |
pushd "${S}" > /dev/null |
| 451 |
|
| 452 |
cabal_src_compile "$@" |
| 453 |
|
| 454 |
popd > /dev/null |
| 455 |
} |
| 456 |
|
| 457 |
haskell-cabal_src_test() { |
| 458 |
pushd "${S}" > /dev/null |
| 459 |
|
| 460 |
if cabal-is-dummy-lib; then |
| 461 |
einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}" |
| 462 |
else |
| 463 |
einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}" |
| 464 |
set -- test "$@" |
| 465 |
echo ./setup "$@" |
| 466 |
./setup "$@" || die "cabal test failed" |
| 467 |
fi |
| 468 |
|
| 469 |
popd > /dev/null |
| 470 |
} |
| 471 |
|
| 472 |
# exported function: cabal-style copy and register |
| 473 |
cabal_src_install() { |
| 474 |
has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX= |
| 475 |
|
| 476 |
if ! cabal-is-dummy-lib; then |
| 477 |
cabal-copy |
| 478 |
cabal-pkg |
| 479 |
fi |
| 480 |
|
| 481 |
# create a dummy local package conf file for haskell-updater |
| 482 |
# if it does not exist (dummy libraries and binaries w/o libraries) |
| 483 |
local ghc_confdir_with_prefix="$(ghc-confdir)" |
| 484 |
# remove EPREFIX |
| 485 |
dodir ${ghc_confdir_with_prefix#${EPREFIX}} |
| 486 |
local conf_file="${D}/$(ghc-confdir)/$(ghc-localpkgconf)" |
| 487 |
[[ -e $conf_file ]] || echo '[]' > "$conf_file" || die |
| 488 |
|
| 489 |
# make sure installed packages do not destroy ghc's |
| 490 |
# bundled packages |
| 491 |
local initial_pkg_db=${ROOT}/$(ghc-libdir)/package.conf.d.initial |
| 492 |
if [[ -e ${initial_pkg_db} ]]; then |
| 493 |
local checked_pkg |
| 494 |
for checked_pkg in $(ghc-listpkg "${conf_file}") |
| 495 |
do |
| 496 |
local initial_pkg |
| 497 |
for initial_pkg in $(ghc-listpkg "${initial_pkg_db}"); do |
| 498 |
if [[ ${checked_pkg} = ${initial_pkg} ]]; then |
| 499 |
eerror "Package ${checked_pkg} is shipped with $(ghc-version)." |
| 500 |
eerror "Ebuild author forgot CABAL_CORE_LIB_GHC_PV entry." |
| 501 |
eerror "Found in ${initial_pkg_db}." |
| 502 |
die |
| 503 |
fi |
| 504 |
done |
| 505 |
done |
| 506 |
fi |
| 507 |
} |
| 508 |
|
| 509 |
haskell-cabal_src_install() { |
| 510 |
pushd "${S}" > /dev/null |
| 511 |
|
| 512 |
cabal_src_install |
| 513 |
|
| 514 |
popd > /dev/null |
| 515 |
} |
| 516 |
|
| 517 |
# ebuild.sh:use_enable() taken as base |
| 518 |
# |
| 519 |
# Usage examples: |
| 520 |
# |
| 521 |
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gui) |
| 522 |
# leads to "--flags=gui" or "--flags=-gui" (useflag 'gui') |
| 523 |
# |
| 524 |
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui) |
| 525 |
# also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk') |
| 526 |
# |
| 527 |
cabal_flag() { |
| 528 |
if [[ -z "$1" ]]; then |
| 529 |
echo "!!! cabal_flag() called without a parameter." >&2 |
| 530 |
echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2 |
| 531 |
return 1 |
| 532 |
fi |
| 533 |
|
| 534 |
local UWORD=${2:-$1} |
| 535 |
|
| 536 |
if use "$1"; then |
| 537 |
echo "--flags=${UWORD}" |
| 538 |
else |
| 539 |
echo "--flags=-${UWORD}" |
| 540 |
fi |
| 541 |
|
| 542 |
return 0 |
| 543 |
} |
| 544 |
|
| 545 |
# @FUNCTION: cabal_chdeps |
| 546 |
# @DESCRIPTION: |
| 547 |
# Allows easier patching of $CABAL_FILE (${S}/${PN}.cabal by default) |
| 548 |
# depends |
| 549 |
# |
| 550 |
# Accepts argument list as pairs of substitutions: <from-string> <to-string>... |
| 551 |
# |
| 552 |
# Dies on error. |
| 553 |
# |
| 554 |
# Usage examples: |
| 555 |
# |
| 556 |
# src_prepare() { |
| 557 |
# cabal_chdeps \ |
| 558 |
# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7' \ |
| 559 |
# 'containers ==0.4.*' 'containers >= 0.4 && < 0.6' |
| 560 |
#} |
| 561 |
# or |
| 562 |
# src_prepare() { |
| 563 |
# CABAL_FILE=${S}/${MY_PN}.cabal cabal_chdeps \ |
| 564 |
# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7' |
| 565 |
# CABAL_FILE=${S}/${MY_PN}-tools.cabal cabal_chdeps \ |
| 566 |
# 'base == 3.*' 'base >= 4.2 && < 4.7' |
| 567 |
#} |
| 568 |
# |
| 569 |
cabal_chdeps() { |
| 570 |
local cf=${CABAL_FILE:-${S}/${PN}.cabal} |
| 571 |
local from_ss # ss - substring |
| 572 |
local to_ss |
| 573 |
local orig_c # c - contents |
| 574 |
local new_c |
| 575 |
|
| 576 |
[[ -f $cf ]] || die "cabal file '$cf' does not exist" |
| 577 |
|
| 578 |
orig_c=$(< "$cf") |
| 579 |
|
| 580 |
while :; do |
| 581 |
from_pat=$1 |
| 582 |
to_str=$2 |
| 583 |
einfo "CHDEP: '${from_pat}' -> '${to_str}'" |
| 584 |
|
| 585 |
[[ -n ${from_pat} ]] || break |
| 586 |
[[ -n ${to_str} ]] || die "'${from_str}' does not have 'to' part" |
| 587 |
|
| 588 |
# escape pattern-like symbols |
| 589 |
from_pat=${from_pat//\*/\\*} |
| 590 |
from_pat=${from_pat//\[/\\[} |
| 591 |
|
| 592 |
new_c=${orig_c//${from_pat}/${to_str}} |
| 593 |
|
| 594 |
if [[ -n $CABAL_DEBUG_LOOSENING ]]; then |
| 595 |
echo "${orig_c}" >"${T}/${cf}".pre |
| 596 |
echo "${new_c}" >"${T}/${cf}".post |
| 597 |
diff -u "${T}/${cf}".{pre,post} |
| 598 |
fi |
| 599 |
|
| 600 |
[[ "${orig_c}" == "${new_c}" ]] && die "no trigger for '${from_ss}'" |
| 601 |
orig_c=${new_c} |
| 602 |
shift |
| 603 |
shift |
| 604 |
done |
| 605 |
|
| 606 |
echo "${new_c}" > "$cf" || |
| 607 |
die "failed to update" |
| 608 |
} |
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