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746 lines
21 KiB
746 lines
21 KiB
# Copyright 1999-2018 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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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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# 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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# 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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# ghcdeps -- constraint dependency on package to ghc onces
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# only used for packages that use libghc internally and _must_
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# not pull upper versions
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# test-suite -- add support for cabal test-suites (introduced in Cabal-1.8)
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inherit eutils ghc-package multilib toolchain-funcs
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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/portage/make.conf:
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# CABAL_EXTRA_CONFIGURE_FLAGS="--enable-shared --enable-executable-dynamic"
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: ${CABAL_EXTRA_CONFIGURE_FLAGS:=}
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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/portage/make.conf: CABAL_EXTRA_BUILD_FLAGS=-v
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: ${CABAL_EXTRA_BUILD_FLAGS:=}
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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/portage/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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# @ECLASS-VARIABLE: CABAL_EXTRA_TEST_FLAGS
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# @DESCRIPTION:
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# User-specified additional parameters passed to 'setup test'.
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# example: /etc/portage/make.conf:
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# CABAL_EXTRA_TEST_FLAGS="-v3 --show-details=streaming"
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: ${CABAL_EXTRA_TEST_FLAGS:=}
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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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: ${CABAL_DEBUG_LOOSENING:=}
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HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install pkg_postinst pkg_postrm"
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# 'dev-haskell/cabal' passes those options with ./configure-based
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# configuration, but most packages don't need/don't accept it:
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# #515362, #515362
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QA_CONFIGURE_OPTIONS+=" --with-compiler --with-hc --with-hc-pkg --with-gcc"
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case "${EAPI:-0}" in
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2|3|4|5|6|7) HASKELL_CABAL_EXPF+=" src_configure" ;;
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*) ;;
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esac
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EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
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for feature in ${CABAL_FEATURES}; do
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case ${feature} in
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haddock) CABAL_USE_HADDOCK=yes;;
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hscolour) CABAL_USE_HSCOLOUR=yes;;
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hoogle) CABAL_USE_HOOGLE=yes;;
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profile) CABAL_USE_PROFILE=yes;;
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bootstrap) CABAL_BOOTSTRAP=yes;;
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lib) CABAL_HAS_LIBRARIES=yes;;
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nocabaldep) CABAL_FROM_GHC=yes;;
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ghcdeps) CABAL_GHC_CONSTRAINT=yes;;
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test-suite) CABAL_TEST_SUITE=yes;;
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# does nothing, removed 2016-09-04
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bin) ;;
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*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
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esac
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done
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if [[ -n "${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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#
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# starting from ghc-7.10.2 we install haddock bundled with
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# ghc to keep links to base and ghc library, otherwise
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# newer haddock versions change index format and can't
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# read index files for packages coming with ghc.
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[[ ${CATEGORY}/${PN} = "dev-haskell/haddock" ]] || \
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DEPEND="${DEPEND} doc? ( || ( dev-haskell/haddock >=dev-lang/ghc-7.10.2 ) )"
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fi
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if [[ -n "${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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if [[ -n "${CABAL_USE_HOOGLE}" ]]; then
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# enabled only in ::haskell
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#IUSE="${IUSE} hoogle"
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CABAL_USE_HOOGLE=
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fi
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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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if [[ -n "${CABAL_TEST_SUITE}" ]]; then
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IUSE="${IUSE} test"
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fi
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# returns the version of cabal currently in use.
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# Rarely it's handy to pin cabal version from outside.
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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 [[ "${CABAL_FROM_GHC}" ]]; then
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_CABAL_VERSION_CACHE="$(ghc-cabal-version)"
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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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cabal-bootstrap() {
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local setupmodule
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local cabalpackage
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local setup_bootstrap_args=()
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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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eqawarn "No Setup.lhs or Setup.hs found. Either add Setup.hs to package or call cabal-mksetup from ebuild"
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cabal-mksetup
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setupmodule="${S}/Setup.hs"
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fi
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# We build the setup program using the latest version of
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# cabal that we have installed
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cabalpackage=Cabal-$(cabal-version)
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einfo "Using cabal-$(cabal-version)."
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if $(ghc-supports-threaded-runtime); then
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# Cabal has a bug that deadlocks non-threaded RTS:
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# https://bugs.gentoo.org/537500
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# https://github.com/haskell/cabal/issues/2398
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setup_bootstrap_args+=(-threaded)
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fi
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make_setup() {
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set -- -package "${cabalpackage}" --make "${setupmodule}" \
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$(ghc-make-args) \
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"${setup_bootstrap_args[@]}" \
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${HCFLAGS} \
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${GHC_BOOTSTRAP_FLAGS} \
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"$@" \
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-o setup
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echo $(ghc-getghc) "$@"
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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 ${setupmodule} failed"
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fi
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}
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cabal-mksetup() {
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local setupdir=${1:-${S}}
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local setup_src=${setupdir}/Setup.hs
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rm -vf "${setupdir}"/Setup.{lhs,hs}
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elog "Creating 'Setup.hs' for 'Simple' build type."
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echo 'import Distribution.Simple; main = defaultMain' \
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> "${setup_src}" || die "failed to create default Setup.hs"
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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 "$@" || die "setup hscolour failed"
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}
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cabal-haddock() {
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set -- haddock "$@"
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echo ./setup "$@"
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./setup "$@" || die "setup haddock failed"
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}
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cabal-hoogle() {
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ewarn "hoogle USE flag requires doc USE flag, building without hoogle"
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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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cabal-hoogle-haddock() {
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set -- haddock --hoogle
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echo ./setup "$@"
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./setup "$@" || die "setup haddock --hoogle failed"
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}
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cabal-hoogle-hscolour-haddock() {
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cabal-hscolour-haddock
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cabal-hoogle-haddock
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}
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cabal-hoogle-hscolour() {
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ewarn "hoogle USE flag requires doc USE flag, building without hoogle"
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cabal-hscolour
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}
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cabal-die-if-nonempty() {
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local breakage_type=$1
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shift
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[[ "${#@}" == 0 ]] && return 0
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eerror "Detected ${breakage_type} packages: ${@}"
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die "//==-- Please, run 'haskell-updater' to fix ${breakage_type} packages --==//"
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}
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cabal-show-brokens() {
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elog "ghc-pkg check: 'checking for other broken packages:'"
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# pretty-printer
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$(ghc-getghcpkg) check 2>&1 \
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| egrep -v '^Warning: haddock-(html|interfaces): ' \
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| egrep -v '^Warning: include-dirs: ' \
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| head -n 20
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cabal-die-if-nonempty 'broken' \
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$($(ghc-getghcpkg) check --simple-output)
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}
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cabal-show-old() {
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cabal-die-if-nonempty 'outdated' \
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$("${EPREFIX}"/usr/sbin/haskell-updater --quiet --upgrade --list-only)
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}
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cabal-show-brokens-and-die() {
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cabal-show-brokens
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cabal-show-old
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die "$@"
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}
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cabal-configure() {
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local cabalconf=()
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has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
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if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
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# We use the bundled with GHC version if exists
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# Haddock is very picky about index files
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# it generates for ghc's base and other packages.
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local p=${EPREFIX}/usr/bin/haddock-ghc-$(ghc-version)
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if [[ -f $p ]]; then
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cabalconf+=(--with-haddock="${p}")
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else
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cabalconf+=(--with-haddock=${EPREFIX}/usr/bin/haddock)
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fi
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fi
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if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
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cabalconf+=(--enable-library-profiling)
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fi
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if [[ -n "${CABAL_TEST_SUITE}" ]]; then
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cabalconf+=($(use_enable test tests))
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fi
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if [[ -n "${CABAL_GHC_CONSTRAINT}" ]]; then
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cabalconf+=($(cabal-constraint "ghc"))
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fi
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cabalconf+=(--ghc-options="$(ghc-make-args)")
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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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# toolchain
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cabalconf+=(--with-ar="$(tc-getAR)")
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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+=(--disable-library-for-ghci)
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fi
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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 $CFLAGS; do cabalconf+=(--ghc-option="-optc$flag"); done
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for flag in $LDFLAGS; do cabalconf+=(--ghc-option="-optl$flag"); done
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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+=(--disable-executable-stripping)
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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+=(--verbose)
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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+=(--enable-shared)
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if $(ghc-supports-shared-libraries); then
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# Experimental support for dynamically linked binaries.
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# We are enabling it since 7.10.1_rc3
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if ver_test "$(ghc-version)" -ge "7.10.0.20150316"; then
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# we didn't enable it before as it was not stable on all arches
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cabalconf+=(--enable-shared)
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# Known to break on ghc-7.8/Cabal-1.18
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# https://ghc.haskell.org/trac/ghc/ticket/9625
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cabalconf+=(--enable-executable-dynamic)
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fi
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fi
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# --sysconfdir appeared in Cabal-1.18+
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if ./setup configure --help | grep -q -- --sysconfdir; then
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cabalconf+=(--sysconfdir="${EPREFIX}"/etc)
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fi
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# appeared in Cabal-1.18+ (see '--disable-executable-stripping')
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if ./setup configure --help | grep -q -- --disable-library-stripping; then
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cabalconf+=(--disable-library-stripping)
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fi
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set -- configure \
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--ghc --prefix="${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 "$@"
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./setup "$@" || cabal-show-brokens-and-die "setup configure failed"
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}
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cabal-build() {
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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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cabal-copy() {
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has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
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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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# cabal is a bit eager about creating dirs,
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# so remove them if they are empty
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rmdir "${ED}/usr/bin" 2> /dev/null
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}
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cabal-pkg() {
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# This does not actually register since we're using true instead
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# of ghc-pkg. So it just leaves the .conf file and we can
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# register that ourselves (if it exists).
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if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
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# Newer cabal can generate a package conf for us:
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./setup register --gen-pkg-config="${T}/${P}.conf"
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if [[ -d "${T}/${P}.conf" ]]; then
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ghc-install-pkg "${T}/${P}.conf"/*
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else
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ghc-install-pkg "${T}/${P}.conf"
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fi
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fi
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}
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# Some cabal libs are bundled along with some versions of ghc
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# eg filepath-1.0 comes with ghc-6.6.1
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# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
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# when building with this version of ghc, the ebuild is a dummy that is it will
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# install no files since the package is already included with ghc.
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# However portage still records the dependency and we can upgrade the package
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# to a later one that's not included with ghc.
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# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
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# Those versions are taken as-is from ghc `--numeric-version`.
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# Package manager versions are also supported:
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# CABAL_CORE_LIB_GHC_PV="7.10.* PM:7.8.4-r1".
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cabal-is-dummy-lib() {
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local bin_ghc_version=$(ghc-version)
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local pm_ghc_version=$(ghc-pm-version)
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for version in ${CABAL_CORE_LIB_GHC_PV}; do
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[[ "${bin_ghc_version}" == ${version} ]] && return 0
|
|
[[ "${pm_ghc_version}" == ${version} ]] && return 0
|
|
done
|
|
|
|
return 1
|
|
}
|
|
|
|
# exported function: check if cabal is correctly installed for
|
|
# the currently active ghc (we cannot guarantee this with portage)
|
|
haskell-cabal_pkg_setup() {
|
|
if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
|
|
[[ ${RDEPEND} == *dev-lang/ghc* ]] || eqawarn "QA Notice: A library does not have runtime dependency on dev-lang/ghc."
|
|
fi
|
|
if [[ -n "${CABAL_UNKNOWN}" ]]; then
|
|
eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
|
|
fi
|
|
if cabal-is-dummy-lib; then
|
|
einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
|
|
fi
|
|
}
|
|
|
|
haskell-cabal_src_configure() {
|
|
cabal-is-dummy-lib && return
|
|
|
|
pushd "${S}" > /dev/null || die
|
|
|
|
cabal-bootstrap
|
|
|
|
cabal-configure "$@"
|
|
|
|
popd > /dev/null || die
|
|
}
|
|
|
|
# exported function: nice alias
|
|
cabal_src_configure() {
|
|
haskell-cabal_src_configure "$@"
|
|
}
|
|
|
|
# exported function: cabal-style bootstrap configure and compile
|
|
cabal_src_compile() {
|
|
# it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
|
|
# and forgets to separate src_compile() to src_configure()/src_compile().
|
|
# Such error leads to default src_configure and we lose all passed flags.
|
|
if ! has "${EAPI:-0}" 0 1; then
|
|
local passed_flag
|
|
for passed_flag in "$@"; do
|
|
[[ ${passed_flag} == --flags=* ]] && \
|
|
eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()"
|
|
done
|
|
fi
|
|
|
|
cabal-is-dummy-lib && return
|
|
|
|
has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
|
|
cabal-build
|
|
|
|
if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
|
|
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
|
|
if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
|
|
# hoogle, hscolour and haddock
|
|
cabal-hoogle-hscolour-haddock
|
|
else
|
|
# haddock and hscolour
|
|
cabal-hscolour-haddock
|
|
fi
|
|
else
|
|
if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
|
|
# hoogle and haddock
|
|
cabal-hoogle-haddock
|
|
else
|
|
# just haddock
|
|
cabal-haddock
|
|
fi
|
|
fi
|
|
else
|
|
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
|
|
if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
|
|
# hoogle and hscolour
|
|
cabal-hoogle-hscolour
|
|
else
|
|
# just hscolour
|
|
cabal-hscolour
|
|
fi
|
|
else
|
|
if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
|
|
# just hoogle
|
|
cabal-hoogle
|
|
fi
|
|
fi
|
|
fi
|
|
}
|
|
|
|
haskell-cabal_src_compile() {
|
|
pushd "${S}" > /dev/null || die
|
|
|
|
cabal_src_compile "$@"
|
|
|
|
popd > /dev/null || die
|
|
}
|
|
|
|
haskell-cabal_src_test() {
|
|
local cabaltest=()
|
|
|
|
pushd "${S}" > /dev/null || die
|
|
|
|
if cabal-is-dummy-lib; then
|
|
einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
|
|
else
|
|
einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
|
|
|
|
# '--show-details=streaming' appeared in Cabal-1.20
|
|
if ./setup test --help | grep -q -- "'streaming'"; then
|
|
cabaltest+=(--show-details=streaming)
|
|
fi
|
|
|
|
set -- test \
|
|
"${cabaltest[@]}" \
|
|
${CABAL_TEST_FLAGS} \
|
|
${CABAL_EXTRA_TEST_FLAGS} \
|
|
"$@"
|
|
echo ./setup "$@"
|
|
./setup "$@" || die "cabal test failed"
|
|
fi
|
|
|
|
popd > /dev/null || die
|
|
}
|
|
|
|
# exported function: cabal-style copy and register
|
|
cabal_src_install() {
|
|
has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
|
|
|
|
if ! cabal-is-dummy-lib; then
|
|
cabal-copy
|
|
cabal-pkg
|
|
fi
|
|
|
|
# create a dummy local package conf file for haskell-updater
|
|
# if it does not exist (dummy libraries and binaries w/o libraries)
|
|
local ghc_confdir_with_prefix="$(ghc-confdir)"
|
|
# remove EPREFIX
|
|
dodir ${ghc_confdir_with_prefix#${EPREFIX}}
|
|
local hint_db="${D}/$(ghc-confdir)"
|
|
local hint_file="${hint_db}/gentoo-empty-${CATEGORY}-${PF}.conf"
|
|
mkdir -p "${hint_db}" || die
|
|
touch "${hint_file}" || die
|
|
}
|
|
|
|
haskell-cabal_src_install() {
|
|
pushd "${S}" > /dev/null || die
|
|
|
|
cabal_src_install
|
|
|
|
popd > /dev/null || die
|
|
}
|
|
|
|
haskell-cabal_pkg_postinst() {
|
|
ghc-package_pkg_postinst
|
|
}
|
|
|
|
haskell-cabal_pkg_postrm() {
|
|
ghc-package_pkg_postrm
|
|
}
|
|
|
|
# @FUNCTION: cabal_flag
|
|
# @DESCRIPTION:
|
|
# ebuild.sh:use_enable() taken as base
|
|
#
|
|
# Usage examples:
|
|
#
|
|
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gui)
|
|
# leads to "--flags=gui" or "--flags=-gui" (useflag 'gui')
|
|
#
|
|
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui)
|
|
# also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk')
|
|
#
|
|
cabal_flag() {
|
|
if [[ -z "$1" ]]; then
|
|
echo "!!! cabal_flag() called without a parameter." >&2
|
|
echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2
|
|
return 1
|
|
fi
|
|
|
|
local UWORD=${2:-$1}
|
|
|
|
if use "$1"; then
|
|
echo "--flags=${UWORD}"
|
|
else
|
|
echo "--flags=-${UWORD}"
|
|
fi
|
|
|
|
return 0
|
|
}
|
|
|
|
# @FUNCTION: cabal_chdeps
|
|
# @DESCRIPTION:
|
|
# Allows easier patching of $CABAL_FILE (${S}/${PN}.cabal by default)
|
|
# depends
|
|
#
|
|
# Accepts argument list as pairs of substitutions: <from-string> <to-string>...
|
|
#
|
|
# Dies on error.
|
|
#
|
|
# Usage examples:
|
|
#
|
|
# src_prepare() {
|
|
# cabal_chdeps \
|
|
# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7' \
|
|
# 'containers ==0.4.*' 'containers >= 0.4 && < 0.6'
|
|
#}
|
|
# or
|
|
# src_prepare() {
|
|
# CABAL_FILE=${S}/${MY_PN}.cabal cabal_chdeps \
|
|
# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7'
|
|
# CABAL_FILE=${S}/${MY_PN}-tools.cabal cabal_chdeps \
|
|
# 'base == 3.*' 'base >= 4.2 && < 4.7'
|
|
#}
|
|
#
|
|
cabal_chdeps() {
|
|
local cabal_fn=${MY_PN:-${PN}}.cabal
|
|
local cf=${CABAL_FILE:-${S}/${cabal_fn}}
|
|
local from_ss # ss - substring
|
|
local to_ss
|
|
local orig_c # c - contents
|
|
local new_c
|
|
|
|
[[ -f $cf ]] || die "cabal file '$cf' does not exist"
|
|
|
|
orig_c=$(< "$cf")
|
|
|
|
while :; do
|
|
from_pat=$1
|
|
to_str=$2
|
|
|
|
[[ -n ${from_pat} ]] || break
|
|
[[ -n ${to_str} ]] || die "'${from_str}' does not have 'to' part"
|
|
|
|
einfo "CHDEP: '${from_pat}' -> '${to_str}'"
|
|
|
|
# escape pattern-like symbols
|
|
from_pat=${from_pat//\*/\\*}
|
|
from_pat=${from_pat//\[/\\[}
|
|
|
|
new_c=${orig_c//${from_pat}/${to_str}}
|
|
|
|
if [[ -n $CABAL_DEBUG_LOOSENING ]]; then
|
|
echo "${orig_c}" >"${T}/${cf}".pre
|
|
echo "${new_c}" >"${T}/${cf}".post
|
|
diff -u "${T}/${cf}".{pre,post}
|
|
fi
|
|
|
|
[[ "${orig_c}" == "${new_c}" ]] && die "no trigger for '${from_pat}'"
|
|
orig_c=${new_c}
|
|
shift
|
|
shift
|
|
done
|
|
|
|
echo "${new_c}" > "$cf" ||
|
|
die "failed to update"
|
|
}
|
|
|
|
# @FUNCTION: cabal-constraint
|
|
# @DESCRIPTION:
|
|
# Allowes to set contraint to the libraries that are
|
|
# used by specified package
|
|
cabal-constraint() {
|
|
while read p v ; do
|
|
echo "--constraint \"$p == $v\""
|
|
done < $(ghc-pkgdeps ${1})
|
|
}
|
|
|
|
# @FUNCTION: replace-hcflags
|
|
# @USAGE: <old> <new>
|
|
# @DESCRIPTION:
|
|
# Replace the <old> flag with <new> in HCFLAGS. Accepts shell globs for <old>.
|
|
# The implementation is picked from flag-o-matic.eclass:replace-flags()
|
|
replace-hcflags() {
|
|
[[ $# != 2 ]] && die "Usage: replace-hcflags <old flag> <new flag>"
|
|
|
|
local f new=()
|
|
for f in ${HCFLAGS} ; do
|
|
# Note this should work with globs like -O*
|
|
if [[ ${f} == ${1} ]]; then
|
|
einfo "HCFLAGS: replacing '${f}' to '${2}'"
|
|
f=${2}
|
|
fi
|
|
new+=( "${f}" )
|
|
done
|
|
export HCFLAGS="${new[*]}"
|
|
|
|
return 0
|
|
}
|