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Revision 1.27 - (hide annotations) (download)
Tue Feb 7 12:47:54 2012 UTC (2 years, 7 months ago) by slyfox
Branch: MAIN
Changes since 1.26: +16 -4 lines
Added support for CABAL_EXTRA_BUILD_FLAGS and HCFLAGS magic variables

CABAL_EXTRA_BUILD_FLAGS allows user to pass arguments to ./setup build phase.
For example you can get detailed build log this way:

    CABAL_EXTRA_BUILD_FLAGS=-v emerge something

HCFLAGS is similar to CFLAGS / CXXFLAGS / FFLAGS in spirit.
You can use it in make.conf or in one-shot merges to enable
random ghc features:

    HCFLAGS="-O0 -Wall" emerge something-else

1 slyfox 1.26 # Copyright 1999-2012 Gentoo Foundation
2 kosmikus 1.1 # Distributed under the terms of the GNU General Public License v2
3 slyfox 1.27 # $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.26 2012/01/20 18:24:09 slyfox Exp $
4 vapier 1.25
5     # @ECLASS: haskell-cabal.eclass
6     # @MAINTAINER:
7     # Haskell herd <haskell@gentoo.org>
8     # @AUTHOR:
9     # Original author: Andres Loeh <kosmikus@gentoo.org>
10     # Original author: Duncan Coutts <dcoutts@gentoo.org>
11     # @BLURB: for packages that make use of the Haskell Common Architecture for Building Applications and Libraries (cabal)
12     # @DESCRIPTION:
13 kosmikus 1.1 # Basic instructions:
14     #
15     # Before inheriting the eclass, set CABAL_FEATURES to
16     # reflect the tools and features that the package makes
17     # use of.
18     #
19     # Currently supported features:
20     # haddock -- for documentation generation
21 kolmodin 1.21 # hscolour -- generation of colourised sources
22 kosmikus 1.1 # alex -- lexer/scanner generator
23     # happy -- parser generator
24     # c2hs -- C interface generator
25     # cpphs -- C preprocessor clone written in Haskell
26     # profile -- if package supports to build profiling-enabled libraries
27     # bootstrap -- only used for the cabal package itself
28 dcoutts 1.3 # bin -- the package installs binaries
29     # lib -- the package installs libraries
30 kolmodin 1.16 # nocabaldep -- don't add dependency on cabal.
31 slyfox 1.23 # only used for packages that _must_ not pull the dependency
32     # on cabal, but still use this eclass (e.g. haskell-updater).
33 kosmikus 1.1 #
34     # Dependencies on other cabal packages have to be specified
35     # correctly.
36     #
37     # Cabal libraries should usually be SLOTted with "${PV}".
38     #
39     # Many Cabal packages require S to be manually set.
40     #
41     # Conforming Cabal packages don't require any function definitions
42     # in the ebuild.
43 kosmikus 1.8 #
44     # Special flags to Cabal Configure can now be set by using
45     # CABAL_CONFIGURE_FLAGS
46 kosmikus 1.1
47 dcoutts 1.11 inherit ghc-package multilib
48 kosmikus 1.1
49 slyfox 1.24 # @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS
50     # @DESCRIPTION:
51     # User-specified additional parameters passed to 'setup configure'.
52     # example: /etc/make.conf: CABAL_EXTRA_CONFIGURE_FLAGS=--enable-shared
53     : ${CABAL_EXTRA_CONFIGURE_FLAGS:=}
54    
55 slyfox 1.27 # @ECLASS-VARIABLE: CABAL_EXTRA_BUILD_FLAGS
56     # @DESCRIPTION:
57     # User-specified additional parameters passed to 'setup build'.
58     # example: /etc/make.conf: CABAL_EXTRA_BUILD_FLAGS=-v
59     : ${CABAL_EXTRA_BUILD_FLAGS:=}
60    
61 slyfox 1.24 # @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS
62     # @DESCRIPTION:
63     # User-specified additional parameters for ghc when building
64     # _only_ 'setup' binary bootstrap.
65     # example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make
66     # linking 'setup' faster.
67     : ${GHC_BOOTSTRAP_FLAGS:=}
68    
69 kolmodin 1.19 HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
70    
71     case "${EAPI:-0}" in
72     2|3|4) HASKELL_CABAL_EXPF+=" src_configure" ;;
73     *) ;;
74     esac
75    
76     EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
77 kosmikus 1.1
78     for feature in ${CABAL_FEATURES}; do
79     case ${feature} in
80 kolmodin 1.16 haddock) CABAL_USE_HADDOCK=yes;;
81 kolmodin 1.21 hscolour) CABAL_USE_HSCOLOUR=yes;;
82 slyfox 1.26 hoogle) CABAL_USE_HOOGLE=yes;;
83 kolmodin 1.16 alex) CABAL_USE_ALEX=yes;;
84     happy) CABAL_USE_HAPPY=yes;;
85     c2hs) CABAL_USE_C2HS=yes;;
86     cpphs) CABAL_USE_CPPHS=yes;;
87     profile) CABAL_USE_PROFILE=yes;;
88     bootstrap) CABAL_BOOTSTRAP=yes;;
89     bin) CABAL_HAS_BINARIES=yes;;
90     lib) CABAL_HAS_LIBRARIES=yes;;
91     nocabaldep) CABAL_FROM_GHC=yes;;
92 dcoutts 1.3 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
93 kosmikus 1.1 esac
94     done
95    
96     if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
97     IUSE="${IUSE} doc"
98     DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
99     fi
100    
101 kolmodin 1.21 if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
102     IUSE="${IUSE} hscolour"
103     DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
104     fi
105    
106 kosmikus 1.1 if [[ -n "${CABAL_USE_ALEX}" ]]; then
107     DEPEND="${DEPEND} dev-haskell/alex"
108     fi
109    
110     if [[ -n "${CABAL_USE_HAPPY}" ]]; then
111     DEPEND="${DEPEND} dev-haskell/happy"
112     fi
113    
114     if [[ -n "${CABAL_USE_C2HS}" ]]; then
115     DEPEND="${DEPEND} dev-haskell/c2hs"
116     fi
117    
118     if [[ -n "${CABAL_USE_CPPHS}" ]]; then
119     DEPEND="${DEPEND} dev-haskell/cpphs"
120     fi
121    
122     if [[ -n "${CABAL_USE_PROFILE}" ]]; then
123     IUSE="${IUSE} profile"
124     fi
125    
126     # We always use a standalone version of Cabal, rather than the one that comes
127     # with GHC. But of course we can't depend on cabal when building cabal itself.
128 dcoutts 1.14 if [[ -z ${CABAL_MIN_VERSION} ]]; then
129     CABAL_MIN_VERSION=1.1.4
130     fi
131 kolmodin 1.16 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
132 dcoutts 1.11 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
133 kosmikus 1.1 fi
134    
135 dcoutts 1.3 # Libraries require GHC to be installed.
136     if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then
137 dcoutts 1.11 RDEPEND="${RDEPEND} dev-lang/ghc"
138 dcoutts 1.3 fi
139 kosmikus 1.1
140 dcoutts 1.14 # returns the version of cabal currently in use
141     _CABAL_VERSION_CACHE=""
142     cabal-version() {
143     if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
144     if [[ "${CABAL_BOOTSTRAP}" ]]; then
145     # We're bootstrapping cabal, so the cabal version is the version
146     # of this package itself.
147     _CABAL_VERSION_CACHE="${PV}"
148 kolmodin 1.17 elif [[ "${CABAL_FROM_GHC}" ]]; then
149 slyfox 1.24 local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*)
150     # /path/to/ghc/Cabal-${VER} -> ${VER}
151     _CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}"
152 dcoutts 1.14 else
153     # We ask portage, not ghc, so that we only pick up
154     # portage-installed cabal versions.
155     _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
156     fi
157     fi
158     echo "${_CABAL_VERSION_CACHE}"
159     }
160    
161 kosmikus 1.1 cabal-bootstrap() {
162     local setupmodule
163 dcoutts 1.14 local cabalpackage
164 kosmikus 1.1 if [[ -f "${S}/Setup.lhs" ]]; then
165     setupmodule="${S}/Setup.lhs"
166     else
167     if [[ -f "${S}/Setup.hs" ]]; then
168     setupmodule="${S}/Setup.hs"
169     else
170     die "No Setup.lhs or Setup.hs found"
171     fi
172     fi
173    
174     # We build the setup program using the latest version of
175     # cabal that we have installed
176 dcoutts 1.14 if version_is_at_least "6.4" "$(ghc-version)"; then
177     cabalpackage=Cabal-$(cabal-version)
178     else
179     # older ghc's don't support package versioning
180     cabalpackage=Cabal
181     fi
182     einfo "Using cabal-$(cabal-version)."
183 slyfox 1.24
184     make_setup() {
185 slyfox 1.26 set -- -package "${cabalpackage}" --make "${setupmodule}" \
186 slyfox 1.24 ${GHC_BOOTSTRAP_FLAGS} \
187     "$@" \
188     -o setup
189 slyfox 1.27 echo $(ghc-getghc) ${HCFLAGS} "$@"
190 slyfox 1.26 $(ghc-getghc) "$@"
191 slyfox 1.24 }
192     if $(ghc-supports-shared-libraries); then
193     # some custom build systems might use external libraries,
194     # for which we don't have shared libs, so keep static fallback
195     make_setup -dynamic "$@" || make_setup "$@" || die "compiling ${setupmodule} failed"
196     else
197     make_setup "$@" || die "compiling ${setupmodule} failed"
198     fi
199 kosmikus 1.1 }
200    
201 dcoutts 1.14 cabal-mksetup() {
202     local setupdir
203    
204     if [[ -n $1 ]]; then
205     setupdir=$1
206     else
207     setupdir=${S}
208     fi
209    
210     rm -f "${setupdir}"/Setup.{lhs,hs}
211    
212     echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
213     > $setupdir/Setup.hs
214     }
215    
216 kolmodin 1.21 cabal-hscolour() {
217 slyfox 1.26 set -- hscolour "$@"
218     echo ./setup "$@"
219     ./setup "$@" || die "setup hscolour failed"
220 kolmodin 1.21 }
221    
222 kosmikus 1.1 cabal-haddock() {
223 slyfox 1.26 set -- haddock "$@"
224     echo ./setup "$@"
225     ./setup "$@" || die "setup haddock failed"
226 kosmikus 1.1 }
227    
228 kolmodin 1.21 cabal-hscolour-haddock() {
229     # --hyperlink-source implies calling 'setup hscolour'
230 slyfox 1.26 set -- haddock --hyperlink-source
231     echo ./setup "$@"
232     ./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed"
233 kolmodin 1.21 }
234    
235 kosmikus 1.1 cabal-configure() {
236 slyfox 1.23 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
237    
238 dcoutts 1.14 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
239 slyfox 1.23 cabalconf="${cabalconf} --with-haddock=${EPREFIX}/usr/bin/haddock"
240 dcoutts 1.14 fi
241 kosmikus 1.1 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
242 dcoutts 1.2 cabalconf="${cabalconf} --enable-library-profiling"
243 kosmikus 1.1 fi
244 slyfox 1.23 if [[ -n "${CABAL_USE_ALEX}" ]]; then
245     cabalconf="${cabalconf} --with-alex=${EPREFIX}/usr/bin/alex"
246     fi
247    
248     if [[ -n "${CABAL_USE_HAPPY}" ]]; then
249     cabalconf="${cabalconf} --with-happy=${EPREFIX}/usr/bin/happy"
250     fi
251    
252     if [[ -n "${CABAL_USE_C2HS}" ]]; then
253     cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"
254     fi
255     if [[ -n "${CABAL_USE_CPPHS}" ]]; then
256     cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"
257     fi
258    
259 slyfox 1.27 local option
260     for option in ${HCFLAGS}
261     do
262     cabalconf+=" --ghc-option=$option"
263     done
264    
265 dcoutts 1.6 # Building GHCi libs on ppc64 causes "TOC overflow".
266     if use ppc64; then
267 dcoutts 1.5 cabalconf="${cabalconf} --disable-library-for-ghci"
268     fi
269 kosmikus 1.1
270 slyfox 1.24 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
271     # so translate LDFLAGS to ghc parameters (without filtering)
272     local flag
273     for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done
274    
275 kolmodin 1.18 if version_is_at_least "1.4" "$(cabal-version)"; then
276     # disable executable stripping for the executables, as portage will
277     # strip by itself, and pre-stripping gives a QA warning.
278     # cabal versions previous to 1.4 does not strip executables, and does
279     # not accept the flag.
280     # this fixes numerous bugs, amongst them;
281     # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
282     cabalconf="${cabalconf} --disable-executable-stripping"
283     fi
284    
285 dcoutts 1.14 if version_is_at_least "1.2.0" "$(cabal-version)"; then
286 slyfox 1.23 cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}"
287 dcoutts 1.14 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
288     # it's better if the configure chatter is in the build logs:
289     cabalconf="${cabalconf} --verbose"
290     fi
291     # Note: with Cabal-1.1.6.x we do not have enough control
292 dcoutts 1.11 # to put the docs into the right place. They're currently going
293     # into /usr/share/${P}/ghc-x.y/doc/
294     # rather than /usr/share/doc/${PF}/
295     # Because we can only set the datadir, not the docdir.
296    
297 slyfox 1.24 # We build shared version of our Cabal where ghc ships it's shared
298     # version of it. We will link ./setup as dynamic binary againt Cabal later.
299     [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
300     $(ghc-supports-shared-libraries) && \
301     cabalconf="${cabalconf} --enable-shared"
302    
303 slyfox 1.26 set -- configure \
304 slyfox 1.23 --ghc --prefix="${EPREFIX}"/usr \
305 kosmikus 1.1 --with-compiler="$(ghc-getghc)" \
306     --with-hc-pkg="$(ghc-getghcpkg)" \
307 slyfox 1.23 --prefix="${EPREFIX}"/usr \
308     --libdir="${EPREFIX}"/usr/$(get_libdir) \
309 dcoutts 1.11 --libsubdir=${P}/ghc-$(ghc-version) \
310 slyfox 1.23 --datadir="${EPREFIX}"/usr/share/ \
311 dcoutts 1.11 --datasubdir=${P}/ghc-$(ghc-version) \
312 kosmikus 1.1 ${cabalconf} \
313 kosmikus 1.8 ${CABAL_CONFIGURE_FLAGS} \
314 slyfox 1.24 ${CABAL_EXTRA_CONFIGURE_FLAGS} \
315 slyfox 1.26 "$@"
316     echo ./setup "$@"
317     ./setup "$@" || die "setup configure failed"
318 kosmikus 1.1 }
319    
320     cabal-build() {
321 dcoutts 1.14 unset LANG LC_ALL LC_MESSAGES
322 slyfox 1.27 set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
323 slyfox 1.26 echo ./setup "$@"
324     ./setup "$@" \
325 kosmikus 1.1 || die "setup build failed"
326     }
327    
328     cabal-copy() {
329 slyfox 1.23 has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
330    
331 slyfox 1.26 set -- copy --destdir="${D}" "$@"
332     echo ./setup "$@"
333     ./setup "$@" || die "setup copy failed"
334 kosmikus 1.1
335     # cabal is a bit eager about creating dirs,
336     # so remove them if they are empty
337 slyfox 1.23 rmdir "${ED}/usr/bin" 2> /dev/null
338 kosmikus 1.1
339     # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
340     # no workaround.
341     # set the +x permission on executables
342 slyfox 1.23 if [[ -d "${ED}/usr/bin" ]] ; then
343     chmod +x "${ED}/usr/bin/"*
344 kosmikus 1.1 fi
345 dcoutts 1.11 # TODO: do we still need this?
346 kosmikus 1.1 }
347    
348     cabal-pkg() {
349 kosmikus 1.9 # This does not actually register since we're using true instead
350 kosmikus 1.1 # of ghc-pkg. So it just leaves the .installed-pkg-config and we can
351     # register that ourselves (if it exists).
352 dcoutts 1.2 local result
353     local err
354    
355 dcoutts 1.4 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
356 dcoutts 1.14 if version_is_at_least "1.2.0" "$(cabal-version)"; then
357     # Newer cabal can generate a package conf for us:
358     ./setup register --gen-pkg-config="${T}/${P}.conf"
359     ghc-setup-pkg "${T}/${P}.conf"
360 dcoutts 1.4 ghc-install-pkg
361     else
362 dcoutts 1.14 # With older cabal we have to hack it by replacing its ghc-pkg
363     # with true and then just picking up the .installed-pkg-config
364     # file and registering that ourselves (if it exists).
365     sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config
366     ./setup register || die "setup register failed"
367     if [[ -f .installed-pkg-config ]]; then
368     ghc-setup-pkg .installed-pkg-config
369     ghc-install-pkg
370     else
371     die "setup register has not generated a package configuration file"
372     fi
373 dcoutts 1.4 fi
374 kosmikus 1.1 fi
375     }
376    
377 kolmodin 1.13 # Some cabal libs are bundled along with some versions of ghc
378     # eg filepath-1.0 comes with ghc-6.6.1
379     # by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
380     # when building with this version of ghc, the ebuild is a dummy that is it will
381     # install no files since the package is already included with ghc.
382     # However portage still records the dependency and we can upgrade the package
383     # to a later one that's not included with ghc.
384     # You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
385     cabal-is-dummy-lib() {
386     for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
387     [[ "$(ghc-version)" == "$version" ]] && return 0
388     done
389     return 1
390     }
391    
392 kosmikus 1.1 # exported function: check if cabal is correctly installed for
393     # the currently active ghc (we cannot guarantee this with portage)
394     haskell-cabal_pkg_setup() {
395 dcoutts 1.11 ghc-package_pkg_setup
396 kolmodin 1.16 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
397 kosmikus 1.1 eerror "The package dev-haskell/cabal is not correctly installed for"
398     eerror "the currently active version of ghc ($(ghc-version)). Please"
399 kolmodin 1.16 eerror "run ghc-updater or haskell-updater or re-build dev-haskell/cabal."
400 kosmikus 1.1 die "cabal is not correctly installed"
401     fi
402 dcoutts 1.4 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
403     eerror "QA: Neither bin nor lib are in CABAL_FEATURES."
404     fi
405 dcoutts 1.3 if [[ -n "${CABAL_UNKNOWN}" ]]; then
406 kolmodin 1.15 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
407 dcoutts 1.3 fi
408 kolmodin 1.13 if cabal-is-dummy-lib; then
409     einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
410     fi
411 kosmikus 1.1 }
412    
413 kolmodin 1.19 haskell-cabal_src_configure() {
414 slyfox 1.23 if ! cabal-is-dummy-lib; then
415     pushd "${S}" > /dev/null
416 kolmodin 1.19
417 slyfox 1.23 cabal-bootstrap
418 slyfox 1.22
419 slyfox 1.27 cabal-configure "$@"
420 kolmodin 1.19
421 slyfox 1.23 popd > /dev/null
422     fi
423 kolmodin 1.19 }
424    
425     # exported function: nice alias
426     cabal_src_configure() {
427     haskell-cabal_src_configure "$@"
428     }
429    
430 kosmikus 1.1 # exported function: cabal-style bootstrap configure and compile
431     cabal_src_compile() {
432 slyfox 1.24 # it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
433     # and forgets to separate src_compile() to src_configure()/src_compile().
434     # Such error leads to default src_configure and we lose all passed flags.
435     if ! has "${EAPI:-0}" 0 1; then
436     local passed_flag
437     for passed_flag in "$@"; do
438     [[ ${passed_flag} == --flags=* ]] && \
439     eqawarn "Cabal option '${passed_flag}' has effect only in src_configure()"
440     done
441     fi
442    
443 kolmodin 1.13 if ! cabal-is-dummy-lib; then
444 kolmodin 1.19 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
445 kolmodin 1.13 cabal-build
446 kosmikus 1.1
447 kolmodin 1.13 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
448 kolmodin 1.21 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
449     # hscolour and haddock
450     cabal-hscolour-haddock
451     else
452     # just haddock
453     cabal-haddock
454     fi
455     else
456     if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
457     # just hscolour
458     cabal-hscolour
459     fi
460 kolmodin 1.13 fi
461 kosmikus 1.1 fi
462     }
463 kolmodin 1.16
464 kosmikus 1.1 haskell-cabal_src_compile() {
465 kolmodin 1.19 pushd "${S}" > /dev/null
466    
467     cabal_src_compile "$@"
468    
469     popd > /dev/null
470     }
471    
472     haskell-cabal_src_test() {
473     pushd "${S}" > /dev/null
474    
475 kolmodin 1.20 if cabal-is-dummy-lib; then
476     einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
477     else
478     einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
479 slyfox 1.26 set -- test "$@"
480     echo ./setup "$@"
481     ./setup "$@" || die "cabal test failed"
482 kolmodin 1.20 fi
483 kolmodin 1.19
484     popd > /dev/null
485 kosmikus 1.1 }
486    
487     # exported function: cabal-style copy and register
488     cabal_src_install() {
489 slyfox 1.23 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
490    
491 kolmodin 1.13 if cabal-is-dummy-lib; then
492     # create a dummy local package conf file for the sake of ghc-updater
493 slyfox 1.23 local ghc_confdir_with_prefix="$(ghc-confdir)"
494     # remove EPREFIX
495     dodir ${ghc_confdir_with_prefix#${EPREFIX}}
496 kolmodin 1.13 echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
497     else
498     cabal-copy
499     cabal-pkg
500 kosmikus 1.1
501 kolmodin 1.13 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
502 dcoutts 1.14 if ! version_is_at_least "1.1.6" "$(cabal-version)"; then
503 kolmodin 1.13 dohtml -r dist/doc/html/*
504     fi
505 dcoutts 1.11 fi
506 kosmikus 1.1 fi
507     }
508 kolmodin 1.19
509 kosmikus 1.1 haskell-cabal_src_install() {
510 kolmodin 1.19 pushd "${S}" > /dev/null
511    
512 kosmikus 1.1 cabal_src_install
513 kolmodin 1.19
514     popd > /dev/null
515 kosmikus 1.1 }
516    
517 kolmodin 1.19 # 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     }

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