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Revision 1.28 - (hide annotations) (download)
Fri Mar 9 22:01:11 2012 UTC (2 years, 4 months ago) by slyfox
Branch: MAIN
Changes since 1.27: +4 -2 lines
Drop haddock from DEPENDS when USE=doc haddock. haddock-2.9.2+ can be used right in the ebuild phase to build it's docs.

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 1.28 # $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.27 2012/02/07 12:47:54 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 slyfox 1.28 # don't require depend on itself to build docs.
99     # ebuild bootstraps docs from just built binary
100     [[ ${CATEGORY}/${PN} = "dev-haskell/haddock" ]] || DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
101 kosmikus 1.1 fi
102    
103 kolmodin 1.21 if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
104     IUSE="${IUSE} hscolour"
105     DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
106     fi
107    
108 kosmikus 1.1 if [[ -n "${CABAL_USE_ALEX}" ]]; then
109     DEPEND="${DEPEND} dev-haskell/alex"
110     fi
111    
112     if [[ -n "${CABAL_USE_HAPPY}" ]]; then
113     DEPEND="${DEPEND} dev-haskell/happy"
114     fi
115    
116     if [[ -n "${CABAL_USE_C2HS}" ]]; then
117     DEPEND="${DEPEND} dev-haskell/c2hs"
118     fi
119    
120     if [[ -n "${CABAL_USE_CPPHS}" ]]; then
121     DEPEND="${DEPEND} dev-haskell/cpphs"
122     fi
123    
124     if [[ -n "${CABAL_USE_PROFILE}" ]]; then
125     IUSE="${IUSE} profile"
126     fi
127    
128     # We always use a standalone version of Cabal, rather than the one that comes
129     # with GHC. But of course we can't depend on cabal when building cabal itself.
130 dcoutts 1.14 if [[ -z ${CABAL_MIN_VERSION} ]]; then
131     CABAL_MIN_VERSION=1.1.4
132     fi
133 kolmodin 1.16 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
134 dcoutts 1.11 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
135 kosmikus 1.1 fi
136    
137 dcoutts 1.3 # Libraries require GHC to be installed.
138     if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then
139 dcoutts 1.11 RDEPEND="${RDEPEND} dev-lang/ghc"
140 dcoutts 1.3 fi
141 kosmikus 1.1
142 dcoutts 1.14 # returns the version of cabal currently in use
143     _CABAL_VERSION_CACHE=""
144     cabal-version() {
145     if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
146     if [[ "${CABAL_BOOTSTRAP}" ]]; then
147     # We're bootstrapping cabal, so the cabal version is the version
148     # of this package itself.
149     _CABAL_VERSION_CACHE="${PV}"
150 kolmodin 1.17 elif [[ "${CABAL_FROM_GHC}" ]]; then
151 slyfox 1.24 local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*)
152     # /path/to/ghc/Cabal-${VER} -> ${VER}
153     _CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}"
154 dcoutts 1.14 else
155     # We ask portage, not ghc, so that we only pick up
156     # portage-installed cabal versions.
157     _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
158     fi
159     fi
160     echo "${_CABAL_VERSION_CACHE}"
161     }
162    
163 kosmikus 1.1 cabal-bootstrap() {
164     local setupmodule
165 dcoutts 1.14 local cabalpackage
166 kosmikus 1.1 if [[ -f "${S}/Setup.lhs" ]]; then
167     setupmodule="${S}/Setup.lhs"
168     else
169     if [[ -f "${S}/Setup.hs" ]]; then
170     setupmodule="${S}/Setup.hs"
171     else
172     die "No Setup.lhs or Setup.hs found"
173     fi
174     fi
175    
176     # We build the setup program using the latest version of
177     # cabal that we have installed
178 dcoutts 1.14 if version_is_at_least "6.4" "$(ghc-version)"; then
179     cabalpackage=Cabal-$(cabal-version)
180     else
181     # older ghc's don't support package versioning
182     cabalpackage=Cabal
183     fi
184     einfo "Using cabal-$(cabal-version)."
185 slyfox 1.24
186     make_setup() {
187 slyfox 1.26 set -- -package "${cabalpackage}" --make "${setupmodule}" \
188 slyfox 1.24 ${GHC_BOOTSTRAP_FLAGS} \
189     "$@" \
190     -o setup
191 slyfox 1.27 echo $(ghc-getghc) ${HCFLAGS} "$@"
192 slyfox 1.26 $(ghc-getghc) "$@"
193 slyfox 1.24 }
194     if $(ghc-supports-shared-libraries); then
195     # some custom build systems might use external libraries,
196     # for which we don't have shared libs, so keep static fallback
197     make_setup -dynamic "$@" || make_setup "$@" || die "compiling ${setupmodule} failed"
198     else
199     make_setup "$@" || die "compiling ${setupmodule} failed"
200     fi
201 kosmikus 1.1 }
202    
203 dcoutts 1.14 cabal-mksetup() {
204     local setupdir
205    
206     if [[ -n $1 ]]; then
207     setupdir=$1
208     else
209     setupdir=${S}
210     fi
211    
212     rm -f "${setupdir}"/Setup.{lhs,hs}
213    
214     echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
215     > $setupdir/Setup.hs
216     }
217    
218 kolmodin 1.21 cabal-hscolour() {
219 slyfox 1.26 set -- hscolour "$@"
220     echo ./setup "$@"
221     ./setup "$@" || die "setup hscolour failed"
222 kolmodin 1.21 }
223    
224 kosmikus 1.1 cabal-haddock() {
225 slyfox 1.26 set -- haddock "$@"
226     echo ./setup "$@"
227     ./setup "$@" || die "setup haddock failed"
228 kosmikus 1.1 }
229    
230 kolmodin 1.21 cabal-hscolour-haddock() {
231     # --hyperlink-source implies calling 'setup hscolour'
232 slyfox 1.26 set -- haddock --hyperlink-source
233     echo ./setup "$@"
234     ./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed"
235 kolmodin 1.21 }
236    
237 kosmikus 1.1 cabal-configure() {
238 slyfox 1.23 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
239    
240 dcoutts 1.14 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
241 slyfox 1.23 cabalconf="${cabalconf} --with-haddock=${EPREFIX}/usr/bin/haddock"
242 dcoutts 1.14 fi
243 kosmikus 1.1 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
244 dcoutts 1.2 cabalconf="${cabalconf} --enable-library-profiling"
245 kosmikus 1.1 fi
246 slyfox 1.23 if [[ -n "${CABAL_USE_ALEX}" ]]; then
247     cabalconf="${cabalconf} --with-alex=${EPREFIX}/usr/bin/alex"
248     fi
249    
250     if [[ -n "${CABAL_USE_HAPPY}" ]]; then
251     cabalconf="${cabalconf} --with-happy=${EPREFIX}/usr/bin/happy"
252     fi
253    
254     if [[ -n "${CABAL_USE_C2HS}" ]]; then
255     cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"
256     fi
257     if [[ -n "${CABAL_USE_CPPHS}" ]]; then
258     cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"
259     fi
260    
261 slyfox 1.27 local option
262     for option in ${HCFLAGS}
263     do
264     cabalconf+=" --ghc-option=$option"
265     done
266    
267 dcoutts 1.6 # Building GHCi libs on ppc64 causes "TOC overflow".
268     if use ppc64; then
269 dcoutts 1.5 cabalconf="${cabalconf} --disable-library-for-ghci"
270     fi
271 kosmikus 1.1
272 slyfox 1.24 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
273     # so translate LDFLAGS to ghc parameters (without filtering)
274     local flag
275     for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done
276    
277 kolmodin 1.18 if version_is_at_least "1.4" "$(cabal-version)"; then
278     # disable executable stripping for the executables, as portage will
279     # strip by itself, and pre-stripping gives a QA warning.
280     # cabal versions previous to 1.4 does not strip executables, and does
281     # not accept the flag.
282     # this fixes numerous bugs, amongst them;
283     # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
284     cabalconf="${cabalconf} --disable-executable-stripping"
285     fi
286    
287 dcoutts 1.14 if version_is_at_least "1.2.0" "$(cabal-version)"; then
288 slyfox 1.23 cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}"
289 dcoutts 1.14 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
290     # it's better if the configure chatter is in the build logs:
291     cabalconf="${cabalconf} --verbose"
292     fi
293     # Note: with Cabal-1.1.6.x we do not have enough control
294 dcoutts 1.11 # to put the docs into the right place. They're currently going
295     # into /usr/share/${P}/ghc-x.y/doc/
296     # rather than /usr/share/doc/${PF}/
297     # Because we can only set the datadir, not the docdir.
298    
299 slyfox 1.24 # We build shared version of our Cabal where ghc ships it's shared
300     # version of it. We will link ./setup as dynamic binary againt Cabal later.
301     [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
302     $(ghc-supports-shared-libraries) && \
303     cabalconf="${cabalconf} --enable-shared"
304    
305 slyfox 1.26 set -- configure \
306 slyfox 1.23 --ghc --prefix="${EPREFIX}"/usr \
307 kosmikus 1.1 --with-compiler="$(ghc-getghc)" \
308     --with-hc-pkg="$(ghc-getghcpkg)" \
309 slyfox 1.23 --prefix="${EPREFIX}"/usr \
310     --libdir="${EPREFIX}"/usr/$(get_libdir) \
311 dcoutts 1.11 --libsubdir=${P}/ghc-$(ghc-version) \
312 slyfox 1.23 --datadir="${EPREFIX}"/usr/share/ \
313 dcoutts 1.11 --datasubdir=${P}/ghc-$(ghc-version) \
314 kosmikus 1.1 ${cabalconf} \
315 kosmikus 1.8 ${CABAL_CONFIGURE_FLAGS} \
316 slyfox 1.24 ${CABAL_EXTRA_CONFIGURE_FLAGS} \
317 slyfox 1.26 "$@"
318     echo ./setup "$@"
319     ./setup "$@" || die "setup configure failed"
320 kosmikus 1.1 }
321    
322     cabal-build() {
323 dcoutts 1.14 unset LANG LC_ALL LC_MESSAGES
324 slyfox 1.27 set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
325 slyfox 1.26 echo ./setup "$@"
326     ./setup "$@" \
327 kosmikus 1.1 || die "setup build failed"
328     }
329    
330     cabal-copy() {
331 slyfox 1.23 has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
332    
333 slyfox 1.26 set -- copy --destdir="${D}" "$@"
334     echo ./setup "$@"
335     ./setup "$@" || die "setup copy failed"
336 kosmikus 1.1
337     # cabal is a bit eager about creating dirs,
338     # so remove them if they are empty
339 slyfox 1.23 rmdir "${ED}/usr/bin" 2> /dev/null
340 kosmikus 1.1
341     # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
342     # no workaround.
343     # set the +x permission on executables
344 slyfox 1.23 if [[ -d "${ED}/usr/bin" ]] ; then
345     chmod +x "${ED}/usr/bin/"*
346 kosmikus 1.1 fi
347 dcoutts 1.11 # TODO: do we still need this?
348 kosmikus 1.1 }
349    
350     cabal-pkg() {
351 kosmikus 1.9 # This does not actually register since we're using true instead
352 kosmikus 1.1 # of ghc-pkg. So it just leaves the .installed-pkg-config and we can
353     # register that ourselves (if it exists).
354 dcoutts 1.2 local result
355     local err
356    
357 dcoutts 1.4 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
358 dcoutts 1.14 if version_is_at_least "1.2.0" "$(cabal-version)"; then
359     # Newer cabal can generate a package conf for us:
360     ./setup register --gen-pkg-config="${T}/${P}.conf"
361     ghc-setup-pkg "${T}/${P}.conf"
362 dcoutts 1.4 ghc-install-pkg
363     else
364 dcoutts 1.14 # With older cabal we have to hack it by replacing its ghc-pkg
365     # with true and then just picking up the .installed-pkg-config
366     # file and registering that ourselves (if it exists).
367     sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config
368     ./setup register || die "setup register failed"
369     if [[ -f .installed-pkg-config ]]; then
370     ghc-setup-pkg .installed-pkg-config
371     ghc-install-pkg
372     else
373     die "setup register has not generated a package configuration file"
374     fi
375 dcoutts 1.4 fi
376 kosmikus 1.1 fi
377     }
378    
379 kolmodin 1.13 # Some cabal libs are bundled along with some versions of ghc
380     # eg filepath-1.0 comes with ghc-6.6.1
381     # by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
382     # when building with this version of ghc, the ebuild is a dummy that is it will
383     # install no files since the package is already included with ghc.
384     # However portage still records the dependency and we can upgrade the package
385     # to a later one that's not included with ghc.
386     # You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
387     cabal-is-dummy-lib() {
388     for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
389     [[ "$(ghc-version)" == "$version" ]] && return 0
390     done
391     return 1
392     }
393    
394 kosmikus 1.1 # exported function: check if cabal is correctly installed for
395     # the currently active ghc (we cannot guarantee this with portage)
396     haskell-cabal_pkg_setup() {
397 dcoutts 1.11 ghc-package_pkg_setup
398 kolmodin 1.16 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
399 kosmikus 1.1 eerror "The package dev-haskell/cabal is not correctly installed for"
400     eerror "the currently active version of ghc ($(ghc-version)). Please"
401 kolmodin 1.16 eerror "run ghc-updater or haskell-updater or re-build dev-haskell/cabal."
402 kosmikus 1.1 die "cabal is not correctly installed"
403     fi
404 dcoutts 1.4 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
405     eerror "QA: Neither bin nor lib are in CABAL_FEATURES."
406     fi
407 dcoutts 1.3 if [[ -n "${CABAL_UNKNOWN}" ]]; then
408 kolmodin 1.15 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
409 dcoutts 1.3 fi
410 kolmodin 1.13 if cabal-is-dummy-lib; then
411     einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
412     fi
413 kosmikus 1.1 }
414    
415 kolmodin 1.19 haskell-cabal_src_configure() {
416 slyfox 1.23 if ! cabal-is-dummy-lib; then
417     pushd "${S}" > /dev/null
418 kolmodin 1.19
419 slyfox 1.23 cabal-bootstrap
420 slyfox 1.22
421 slyfox 1.27 cabal-configure "$@"
422 kolmodin 1.19
423 slyfox 1.23 popd > /dev/null
424     fi
425 kolmodin 1.19 }
426    
427     # exported function: nice alias
428     cabal_src_configure() {
429     haskell-cabal_src_configure "$@"
430     }
431    
432 kosmikus 1.1 # exported function: cabal-style bootstrap configure and compile
433     cabal_src_compile() {
434 slyfox 1.24 # it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
435     # and forgets to separate src_compile() to src_configure()/src_compile().
436     # Such error leads to default src_configure and we lose all passed flags.
437     if ! has "${EAPI:-0}" 0 1; then
438     local passed_flag
439     for passed_flag in "$@"; do
440     [[ ${passed_flag} == --flags=* ]] && \
441     eqawarn "Cabal option '${passed_flag}' has effect only in src_configure()"
442     done
443     fi
444    
445 kolmodin 1.13 if ! cabal-is-dummy-lib; then
446 kolmodin 1.19 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
447 kolmodin 1.13 cabal-build
448 kosmikus 1.1
449 kolmodin 1.13 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
450 kolmodin 1.21 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
451     # hscolour and haddock
452     cabal-hscolour-haddock
453     else
454     # just haddock
455     cabal-haddock
456     fi
457     else
458     if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
459     # just hscolour
460     cabal-hscolour
461     fi
462 kolmodin 1.13 fi
463 kosmikus 1.1 fi
464     }
465 kolmodin 1.16
466 kosmikus 1.1 haskell-cabal_src_compile() {
467 kolmodin 1.19 pushd "${S}" > /dev/null
468    
469     cabal_src_compile "$@"
470    
471     popd > /dev/null
472     }
473    
474     haskell-cabal_src_test() {
475     pushd "${S}" > /dev/null
476    
477 kolmodin 1.20 if cabal-is-dummy-lib; then
478     einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
479     else
480     einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
481 slyfox 1.26 set -- test "$@"
482     echo ./setup "$@"
483     ./setup "$@" || die "cabal test failed"
484 kolmodin 1.20 fi
485 kolmodin 1.19
486     popd > /dev/null
487 kosmikus 1.1 }
488    
489     # exported function: cabal-style copy and register
490     cabal_src_install() {
491 slyfox 1.23 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
492    
493 kolmodin 1.13 if cabal-is-dummy-lib; then
494     # create a dummy local package conf file for the sake of ghc-updater
495 slyfox 1.23 local ghc_confdir_with_prefix="$(ghc-confdir)"
496     # remove EPREFIX
497     dodir ${ghc_confdir_with_prefix#${EPREFIX}}
498 kolmodin 1.13 echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
499     else
500     cabal-copy
501     cabal-pkg
502 kosmikus 1.1
503 kolmodin 1.13 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
504 dcoutts 1.14 if ! version_is_at_least "1.1.6" "$(cabal-version)"; then
505 kolmodin 1.13 dohtml -r dist/doc/html/*
506     fi
507 dcoutts 1.11 fi
508 kosmikus 1.1 fi
509     }
510 kolmodin 1.19
511 kosmikus 1.1 haskell-cabal_src_install() {
512 kolmodin 1.19 pushd "${S}" > /dev/null
513    
514 kosmikus 1.1 cabal_src_install
515 kolmodin 1.19
516     popd > /dev/null
517 kosmikus 1.1 }
518    
519 kolmodin 1.19 # ebuild.sh:use_enable() taken as base
520     #
521     # Usage examples:
522     #
523     # CABAL_CONFIGURE_FLAGS=$(cabal_flag gui)
524     # leads to "--flags=gui" or "--flags=-gui" (useflag 'gui')
525     #
526     # CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui)
527     # also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk')
528     #
529     cabal_flag() {
530     if [[ -z "$1" ]]; then
531     echo "!!! cabal_flag() called without a parameter." >&2
532     echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2
533     return 1
534     fi
535    
536     local UWORD=${2:-$1}
537    
538     if use "$1"; then
539     echo "--flags=${UWORD}"
540     else
541     echo "--flags=-${UWORD}"
542     fi
543    
544     return 0
545     }

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