dev-lang/ghc/ghc-7.10.3.ebuild

   1 # Copyright 1999-2015 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3 # $Id$
   4
   5 EAPI=5
   6
   7 # to make make a crosscompiler use crossdev and symlink ghc tree into
   8 # cross overlay. result would look like 'cross-sparc-unknown-linux-gnu/ghc'
   9 #
  10 # 'CTARGET' definition and 'is_crosscompile' are taken from 'toolchain.eclass'
  11 export CTARGET=${CTARGET:-${CHOST}}
  12 if [[ ${CTARGET} = ${CHOST} ]] ; then
  13         if [[ ${CATEGORY/cross-} != ${CATEGORY} ]] ; then
  14                 export CTARGET=${CATEGORY/cross-}
  15         fi
  16 fi
  17
  18 inherit autotools bash-completion-r1 eutils flag-o-matic ghc-package
  19 inherit multilib pax-utils toolchain-funcs versionator
  20
  21 DESCRIPTION="The Glasgow Haskell Compiler"
  22 HOMEPAGE="http://www.haskell.org/ghc/"
  23
  24 # we don't have any binaries yet
  25 arch_binaries=""
  26
  27 # sorted!
  28 #arch_binaries="$arch_binaries alpha? ( http://code.haskell.org/~slyfox/ghc-alpha/ghc-bin-${PV}-alpha.tbz2 )"
  29 #arch_binaries="$arch_binaries arm? ( http://code.haskell.org/~slyfox/ghc-arm/ghc-bin-${PV}-arm.tbz2 )"
  30 arch_binaries="$arch_binaries amd64? ( http://code.haskell.org/~slyfox/ghc-amd64/ghc-bin-${PVR}-amd64.tbz2 )"
  31 #arch_binaries="$arch_binaries ia64?  ( http://code.haskell.org/~slyfox/ghc-ia64/ghc-bin-${PV}-ia64-fixed-fiw.tbz2 )"
  32 #arch_binaries="$arch_binaries ppc? ( http://code.haskell.org/~slyfox/ghc-ppc/ghc-bin-${PV}-ppc.tbz2 )"
  33 #arch_binaries="$arch_binaries ppc64? ( http://code.haskell.org/~slyfox/ghc-ppc64/ghc-bin-${PV}-ppc64.tbz2 )"
  34 #arch_binaries="$arch_binaries sparc? ( http://code.haskell.org/~slyfox/ghc-sparc/ghc-bin-${PV}-sparc.tbz2 )"
  35 arch_binaries="$arch_binaries x86? ( http://code.haskell.org/~slyfox/ghc-x86/ghc-bin-${PVR}-x86.tbz2 )"
  36
  37 # various ports:
  38 #arch_binaries="$arch_binaries x86-fbsd? ( http://code.haskell.org/~slyfox/ghc-x86-fbsd/ghc-bin-${PV}-x86-fbsd.tbz2 )"
  39
  40 # 0 - yet
  41 yet_binary() {
  42         case "${ARCH}" in
  43                 #alpha) return 0 ;;
  44                 #arm)
  45                 #       ewarn "ARM binary is built on armv5tel-eabi toolchain. Use with caution."
  46                 #       return 0
  47                 #;;
  48                 amd64) return 0 ;;
  49                 #ia64) return 0 ;;
  50                 #ppc) return 0 ;;
  51                 #ppc64) return 0 ;;
  52                 #sparc) return 0 ;;
  53                 x86) return 0 ;;
  54                 *) return 1 ;;
  55         esac
  56 }
  57
  58 GHC_PV=${PV}
  59 #GHC_PV=7.10.2.20151030 # uncomment only for -rc ebuilds
  60 GHC_P=${PN}-${GHC_PV} # using ${P} is almost never correct
  61
  62 SRC_URI="!binary? ( http://downloads.haskell.org/~ghc/${PV/_rc/-rc}/${GHC_P}-src.tar.bz2 )"
  63 S="${WORKDIR}"/${GHC_P}
  64
  65 [[ -n $arch_binaries ]] && SRC_URI+=" !ghcbootstrap? ( $arch_binaries )"
  66
  67 BUMP_LIBRARIES=(
  68         # "hackage-name          hackage-version"
  69         "binary                  0.7.6.1"
  70         "hoopl                   3.10.2.0"
  71         "transformers            0.4.3.0"
  72 )
  73
  74 LICENSE="BSD"
  75 SLOT="0/${PV}"
  76 KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
  77 IUSE="doc ghcbootstrap ghcmakebinary +gmp"
  78 IUSE+=" binary"
  79 IUSE+=" elibc_glibc" # system stuff
  80
  81 RDEPEND="
  82         >=dev-lang/perl-5.6.1
  83         >=dev-libs/gmp-5:=
  84         sys-libs/ncurses:=[unicode]
  85         !ghcmakebinary? ( virtual/libffi:= )
  86         !kernel_Darwin? ( >=sys-devel/gcc-2.95.3:* )
  87         kernel_linux? ( >=sys-devel/binutils-2.17:* )
  88         kernel_SunOS? ( >=sys-devel/binutils-2.17:* )
  89 "
  90
  91 # force dependency on >=gmp-5, even if >=gmp-4.1 would be enough. this is due to
  92 # that we want the binaries to use the latest versioun available, and not to be
  93 # built against gmp-4
  94
  95 # similar for glibc. we have bootstrapped binaries against glibc-2.17
  96 DEPEND="${RDEPEND}
  97         doc? ( app-text/docbook-xml-dtd:4.2
  98                 app-text/docbook-xml-dtd:4.5
  99                 app-text/docbook-xsl-stylesheets
 100                 >=dev-libs/libxslt-1.1.2 )
 101         !ghcbootstrap? ( !prefix? ( elibc_glibc? ( >=sys-libs/glibc-2.17 ) ) )"
 102
 103 PDEPEND="!ghcbootstrap? ( =app-admin/haskell-updater-1.2* )"
 104
 105 REQUIRED_USE="?? ( ghcbootstrap binary )"
 106
 107 # haskell libraries built with cabal in configure mode, #515354
 108 QA_CONFIGURE_OPTIONS+=" --with-compiler --with-gcc"
 109
 110 is_crosscompile() {
 111         [[ ${CHOST} != ${CTARGET} ]]
 112 }
 113
 114 # returns tool prefix for crosscompiler.
 115 # Example:
 116 #  CTARGET=armv7a-unknown-linux-gnueabi
 117 #  CHOST=x86_64-pc-linux-gnu
 118 #    "armv7a-unknown-linux-gnueabi-"
 119 #  CTARGET=${CHOST}
 120 #    ""
 121 # Used in tools and library prefix:
 122 #    "${ED}"/usr/bin/$(cross)haddock
 123 #    "${ED}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d"
 124
 125 cross() {
 126         if is_crosscompile; then
 127                 echo "${CTARGET}-"
 128         else
 129                 echo ""
 130         fi
 131 }
 132
 133 append-ghc-cflags() {
 134         local persistent compile assemble link
 135         local flag ghcflag
 136
 137         for flag in $*; do
 138                 case ${flag} in
 139                         persistent)     persistent="yes";;
 140                         compile)        compile="yes";;
 141                         assemble)       assemble="yes";;
 142                         link)           link="yes";;
 143                         *)
 144                                 [[ ${compile}  ]] && ghcflag="-optc${flag}"  CFLAGS+=" ${flag}" && GHC_FLAGS+=" ${ghcflag}" &&
 145                                         [[ ${persistent} ]] && GHC_PERSISTENT_FLAGS+=" ${ghcflag}"
 146                                 [[ ${assemble} ]] && ghcflag="-opta${flag}"  CFLAGS+=" ${flag}" && GHC_FLAGS+=" ${ghcflag}" &&
 147                                         [[ ${persistent} ]] && GHC_PERSISTENT_FLAGS+=" ${ghcflag}"
 148                                 [[ ${link}     ]] && ghcflag="-optl${flag}" LDFLAGS+=" ${flag}" && GHC_FLAGS+=" ${ghcflag}" &&
 149                                         [[ ${persistent} ]] && GHC_PERSISTENT_FLAGS+=" ${ghcflag}"
 150                                 ;;
 151                 esac
 152         done
 153 }
 154
 155 # $1 - lib name (under libraries/)
 156 # $2 - lib version
 157 # example: bump_lib "transformers" "0.4.2.0"
 158 bump_lib() {
 159         local pn=$1 pv=$2
 160         local p=${pn}-${pv}
 161         local f
 162
 163         einfo "Bumping ${pn} up to ${pv}"
 164
 165         for f in ghc.mk GNUmakefile; do
 166                 mv libraries/"${pn}"/$f "${WORKDIR}"/"${p}"/$f || die
 167         done
 168         mv libraries/"${pn}" "${WORKDIR}"/"${pn}".old || die
 169         mv "${WORKDIR}"/"${p}" libraries/"${pn}" || die
 170 }
 171
 172 update_SRC_URI() {
 173         local p pn pv
 174         for p in "${BUMP_LIBRARIES[@]}"; do
 175                 set -- $p
 176                 pn=$1 pv=$2
 177
 178                 SRC_URI+=" mirror://hackage/package/${pn}/${pn}-${pv}.tar.gz"
 179         done
 180 }
 181
 182 update_SRC_URI
 183
 184 bump_libs() {
 185         local p pn pv
 186         for p in "${BUMP_LIBRARIES[@]}"; do
 187                 set -- $p
 188                 pn=$1 pv=$2
 189
 190                 bump_lib "${pn}" "${pv}"
 191         done
 192 }
 193
 194 ghc_setup_cflags() {
 195         if is_crosscompile; then
 196                 export CFLAGS=${GHC_CFLAGS-"-O2 -pipe"}
 197                 export LDFLAGS=${GHC_LDFLAGS-"-Wl,-O1"}
 198                 einfo "Crosscompiling mode:"
 199                 einfo "   CHOST:   ${CHOST}"
 200                 einfo "   CTARGET: ${CTARGET}"
 201                 einfo "   CFLAGS:  ${CFLAGS}"
 202                 einfo "   LDFLAGS: ${LDFLAGS}"
 203                 einfo "   prefix: $(cross)"
 204                 return
 205         fi
 206         # We need to be very careful with the CFLAGS we ask ghc to pass through to
 207         # gcc. There are plenty of flags which will make gcc produce output that
 208         # breaks ghc in various ways. The main ones we want to pass through are
 209         # -mcpu / -march flags. These are important for arches like alpha & sparc.
 210         # We also use these CFLAGS for building the C parts of ghc, ie the rts.
 211         strip-flags
 212         strip-unsupported-flags
 213
 214         # Cmm can't parse line numbers #482086
 215         replace-flags -ggdb[3-9] -ggdb2
 216
 217         GHC_FLAGS=""
 218         GHC_PERSISTENT_FLAGS=""
 219         for flag in ${CFLAGS}; do
 220                 case ${flag} in
 221
 222                         # Ignore extra optimisation (ghc passes -O to gcc anyway)
 223                         # -O2 and above break on too many systems
 224                         -O*) ;;
 225
 226                         # Arch and ABI flags are what we're really after
 227                         -m*) append-ghc-cflags compile assemble ${flag};;
 228
 229                         # Sometimes it's handy to see backtrace of RTS
 230                         # to get an idea what happens there
 231                         -g*) append-ghc-cflags compile ${flag};;
 232
 233                         # Ignore all other flags, including all -f* flags
 234                 esac
 235         done
 236
 237         for flag in ${LDFLAGS}; do
 238                 append-ghc-cflags link ${flag}
 239         done
 240
 241         # hardened-gcc needs to be disabled, because the mangler doesn't accept
 242         # its output.
 243         gcc-specs-pie && append-ghc-cflags persistent compile link -nopie
 244         gcc-specs-ssp && append-ghc-cflags persistent compile      -fno-stack-protector
 245
 246         # prevent from failind building unregisterised ghc:
 247         # http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg171602.html
 248         use ppc64 && append-ghc-cflags persistent compile -mminimal-toc
 249         # fix the similar issue as ppc64 TOC on ia64. ia64 has limited size of small data
 250         # currently ghc fails to build haddock
 251         # http://osdir.com/ml/gnu.binutils.bugs/2004-10/msg00050.html
 252         use ia64 && append-ghc-cflags persistent compile -G0
 253 }
 254
 255 # substitutes string $1 to $2 in files $3 $4 ...
 256 relocate_path() {
 257         local from=$1
 258         local   to=$2
 259         shift 2
 260         local file=
 261         for file in "$@"
 262         do
 263                 sed -i -e "s|$from|$to|g" \
 264                         "$file" || die "path relocation failed for '$file'"
 265         done
 266 }
 267
 268 # changes hardcoded ghc paths and updates package index
 269 # $1 - new absolute root path
 270 relocate_ghc() {
 271         local to=$1
 272
 273         # libdir for prebuilt binary and for current system may mismatch
 274         # It does for prefix installation for example: bug #476998
 275         local bin_ghc_prefix=${WORKDIR}/usr
 276         local bin_libpath=$(echo "${bin_ghc_prefix}"/lib*)
 277         local bin_libdir=${bin_libpath#${bin_ghc_prefix}/}
 278
 279         # backup original script to use it later after relocation
 280         local gp_back="${T}/ghc-pkg-${GHC_PV}-orig"
 281         cp "${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" "$gp_back" || die "unable to backup ghc-pkg wrapper"
 282
 283         if [[ ${bin_libdir} != $(get_libdir) ]]; then
 284                 einfo "Relocating '${bin_libdir}' to '$(get_libdir)' (bug #476998)"
 285                 # moving the dir itself is not strictly needed
 286                 # but then USE=binary would result in installing
 287                 # in '${bin_libdir}'
 288                 mv "${bin_ghc_prefix}/${bin_libdir}" "${bin_ghc_prefix}/$(get_libdir)" || die
 289
 290                 relocate_path "/usr/${bin_libdir}" "/usr/$(get_libdir)" \
 291                         "${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}" \
 292                         "${WORKDIR}/usr/bin/$(cross)ghci-${GHC_PV}" \
 293                         "${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" \
 294                         "${WORKDIR}/usr/bin/$(cross)hsc2hs" \
 295                         "${WORKDIR}/usr/bin/$(cross)runghc-${GHC_PV}" \
 296                         "$gp_back" \
 297                         "${WORKDIR}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/"*
 298         fi
 299
 300         # Relocate from /usr to ${EPREFIX}/usr
 301         relocate_path "/usr" "${to}/usr" \
 302                 "${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}" \
 303                 "${WORKDIR}/usr/bin/$(cross)ghci-${GHC_PV}" \
 304                 "${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" \
 305                 "${WORKDIR}/usr/bin/$(cross)hsc2hs" \
 306                 "${WORKDIR}/usr/bin/$(cross)runghc-${GHC_PV}" \
 307                 "${WORKDIR}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/"*
 308
 309         # this one we will use to regenerate cache
 310         # so it should point to current tree location
 311         relocate_path "/usr" "${WORKDIR}/usr" "$gp_back"
 312
 313         if use prefix; then
 314                 # and insert LD_LIBRARY_PATH entry to EPREFIX dir tree
 315                 # TODO: add the same for darwin's CHOST and it's DYLD_
 316                 local new_ldpath='LD_LIBRARY_PATH="'${EPREFIX}/$(get_libdir):${EPREFIX}/usr/$(get_libdir)'${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"\nexport LD_LIBRARY_PATH'
 317                 sed -i -e '2i'"$new_ldpath" \
 318                         "${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}" \
 319                         "${WORKDIR}/usr/bin/$(cross)ghci-${GHC_PV}" \
 320                         "${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" \
 321                         "${WORKDIR}/usr/bin/$(cross)hsc2hs" \
 322                         "${WORKDIR}/usr/bin/$(cross)runghc-${GHC_PV}" \
 323                         "$gp_back" \
 324                         || die "Adding LD_LIBRARY_PATH for wrappers failed"
 325         fi
 326
 327         # regenerate the binary package cache
 328         "$gp_back" recache || die "failed to update cache after relocation"
 329         rm "$gp_back"
 330 }
 331
 332 pkg_setup() {
 333         # quiet portage about prebuilt binaries
 334         use binary && QA_PREBUILT="*"
 335
 336         [[ ${MERGE_TYPE} == binary ]] && return
 337
 338         if use ghcbootstrap; then
 339                 ewarn "You requested ghc bootstrapping, this is usually only used"
 340                 ewarn "by Gentoo developers to make binary .tbz2 packages."
 341
 342                 [[ -z $(type -P ghc) ]] && \
 343                         die "Could not find a ghc to bootstrap with."
 344         else
 345                 if ! yet_binary; then
 346                         eerror "Please try emerging with USE=ghcbootstrap and report build"
 347                         eerror "sucess or failure to the haskell team (haskell@gentoo.org)"
 348                         die "No binary available for '${ARCH}' arch yet, USE=ghcbootstrap"
 349                 fi
 350         fi
 351 }
 352
 353 src_unpack() {
 354         # Create the ${S} dir if we're using the binary version
 355         use binary && mkdir "${S}"
 356
 357         # the Solaris and Darwin binaries from ghc (maeder) need to be
 358         # unpacked separately, so prevent them from being unpacked
 359         local ONLYA=${A}
 360         case ${CHOST} in
 361                 *-darwin* | *-solaris*)  ONLYA=${GHC_P}-src.tar.bz2  ;;
 362         esac
 363         unpack ${ONLYA}
 364
 365         if [[ -d "${S}"/libraries/dph ]]; then
 366                 # Sometimes dph libs get accidentally shipped with ghc
 367                 # but they are not installed unless user requests it.
 368                 # We never install them.
 369                 elog "Removing 'libraries/dph'"
 370                 rm -rf "${S}"/libraries/dph
 371         fi
 372 }
 373
 374 src_prepare() {
 375         ghc_setup_cflags
 376
 377         if ! use ghcbootstrap && [[ ${CHOST} != *-darwin* && ${CHOST} != *-solaris* ]]; then
 378                 # Modify the wrapper script from the binary tarball to use GHC_PERSISTENT_FLAGS.
 379                 # See bug #313635.
 380                 sed -i -e "s|\"\$topdir\"|\"\$topdir\" ${GHC_PERSISTENT_FLAGS}|" \
 381                         "${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}"
 382
 383                 # allow hardened users use vanilla binary to bootstrap ghc
 384                 # ghci uses mmap with rwx protection at it implements dynamic
 385                 # linking on it's own (bug #299709)
 386                 pax-mark -m "${WORKDIR}/usr/$(get_libdir)/$(cross)${GHC_P}/bin/ghc"
 387         fi
 388
 389         if use binary; then
 390                 if use prefix; then
 391                         relocate_ghc "${EPREFIX}"
 392                 fi
 393
 394                 # Move unpacked files to the expected place
 395                 mv "${WORKDIR}/usr" "${S}"
 396         else
 397                 if ! use ghcbootstrap; then
 398                         case ${CHOST} in
 399                                 *-darwin* | *-solaris*)
 400                                 # UPDATE ME for ghc-7
 401                                 mkdir "${WORKDIR}"/ghc-bin-installer || die
 402                                 pushd "${WORKDIR}"/ghc-bin-installer > /dev/null || die
 403                                 use sparc-solaris && unpack ghc-6.10.4-sparc-sun-solaris2.tar.bz2
 404                                 use x86-solaris && unpack ghc-7.0.3-i386-unknown-solaris2.tar.bz2
 405                                 use x86-macos && unpack ghc-7.4.1-i386-apple-darwin.tar.bz2
 406                                 use x64-macos && unpack ghc-7.4.1-x86_64-apple-darwin.tar.bz2
 407                                 popd > /dev/null
 408
 409                                 pushd "${WORKDIR}"/ghc-bin-installer/ghc-[67].?*.? > /dev/null || die
 410                                 # fix the binaries so they run, on Solaris we need an
 411                                 # LD_LIBRARY_PATH which has our prefix libdirs, on
 412                                 # Darwin we need to replace the frameworks with our libs
 413                                 # from the prefix fix before installation, because some
 414                                 # of the tools are actually used during configure/make
 415                                 if [[ ${CHOST} == *-solaris* ]] ; then
 416                                         export LD_LIBRARY_PATH="${EPREFIX}/$(get_libdir):${EPREFIX}/usr/$(get_libdir):${LD_LIBRARY_PATH}"
 417                                 elif [[ ${CHOST} == *-darwin* ]] ; then
 418                                         local readline_framework=GNUreadline.framework/GNUreadline
 419                                         local gmp_framework=/opt/local/lib/libgmp.10.dylib
 420                                         local ncurses_file=/opt/local/lib/libncurses.5.dylib
 421                                         for binary in $(scanmacho -BRE MH_EXECUTE -F '%F' .) ; do
 422                                                 install_name_tool -change \
 423                                                         ${readline_framework} \
 424                                                         "${EPREFIX}"/lib/libreadline.dylib \
 425                                                         ${binary} || die
 426                                                 install_name_tool -change \
 427                                                         ${gmp_framework} \
 428                                                         "${EPREFIX}"/usr/lib/libgmp.dylib \
 429                                                         ${binary} || die
 430                                                 install_name_tool -change \
 431                                                         ${ncurses_file} \
 432                                                         "${EPREFIX}"/usr/lib/libncurses.dylib \
 433                                                         ${binary} || die
 434                                         done
 435                                         # we don't do frameworks!
 436                                         sed -i \
 437                                                 -e 's/\(frameworks = \)\["GMP"\]/\1[]/g' \
 438                                                 -e 's/\(extraLibraries = \)\["m"\]/\1["m","gmp"]/g' \
 439                                                 rts/package.conf.in || die
 440                                 fi
 441
 442                                 # it is autoconf, but we really don't want to give it too
 443                                 # much arguments, in fact we do the make in-place anyway
 444                                 ./configure --prefix="${WORKDIR}"/usr || die
 445                                 make install || die
 446                                 popd > /dev/null
 447                                 ;;
 448                                 *)
 449                                 relocate_ghc "${WORKDIR}"
 450                                 ;;
 451                         esac
 452                 fi
 453
 454                 sed -i -e "s|\"\$topdir\"|\"\$topdir\" ${GHC_PERSISTENT_FLAGS}|" \
 455                         "${S}/ghc/ghc.wrapper"
 456
 457                 cd "${S}" # otherwise epatch will break
 458
 459                 epatch "${FILESDIR}"/${PN}-7.0.4-CHOST-prefix.patch
 460
 461                 epatch "${FILESDIR}"/${PN}-7.8.2-cgen-constify.patch
 462                 epatch "${FILESDIR}"/${PN}-7.8.3-prim-lm.patch
 463                 epatch "${FILESDIR}"/${PN}-7.10.1-rc3-ghc-7.10-bootstrap.patch
 464                 epatch "${FILESDIR}"/${PN}-7.10.3-relnotes.patch
 465                 epatch "${FILESDIR}"/${PN}-7.10.3-hardfloat.patch
 466
 467                 # Since ${S}/packages does not include base, etc. add them to gen_contents_index
 468                 sed -e 's@\(for REPO in .*\)@\1 base integer-gmp integer-gmp2 integer-simple template-haskell@' \
 469                         -i libraries/gen_contents_index || die
 470
 471                 if use prefix; then
 472                         # Make configure find docbook-xsl-stylesheets from Prefix
 473                         sed -e '/^FP_DIR_DOCBOOK_XSL/s:\[.*\]:['"${EPREFIX}"'/usr/share/sgml/docbook/xsl-stylesheets/]:' \
 474                                 -i utils/haddock/doc/configure.ac || die
 475                 fi
 476
 477                 bump_libs
 478
 479                 # as we have changed the build system
 480                 eautoreconf
 481         fi
 482 }
 483
 484 src_configure() {
 485         if ! use binary; then
 486                 # initialize build.mk
 487                 echo '# Gentoo changes' > mk/build.mk
 488
 489                 # Put docs into the right place, ie /usr/share/doc/ghc-${GHC_PV}
 490                 echo "docdir = ${EPREFIX}/usr/share/doc/${P}" >> mk/build.mk
 491                 echo "htmldir = ${EPREFIX}/usr/share/doc/${P}" >> mk/build.mk
 492
 493                 # We also need to use the GHC_FLAGS flags when building ghc itself
 494                 echo "SRC_HC_OPTS+=${HCFLAGS} ${GHC_FLAGS}" >> mk/build.mk
 495                 echo "SRC_CC_OPTS+=${CFLAGS}" >> mk/build.mk
 496                 echo "SRC_LD_OPTS+=${LDFLAGS}" >> mk/build.mk
 497
 498                 # We can't depend on haddock except when bootstrapping when we
 499                 # must build docs and include them into the binary .tbz2 package
 500                 # app-text/dblatex is not in portage, can not build PDF or PS
 501                 echo "BUILD_DOCBOOK_PDF  = NO"  >> mk/build.mk
 502                 echo "BUILD_DOCBOOK_PS   = NO"  >> mk/build.mk
 503                 if use doc; then
 504                         echo "BUILD_DOCBOOK_HTML = YES" >> mk/build.mk
 505                 else
 506                         echo "BUILD_DOCBOOK_HTML = NO" >> mk/build.mk
 507                 fi
 508
 509                 # this controls presence on 'xhtml' and 'haddock' in final install
 510                 echo "HADDOCK_DOCS       = YES" >> mk/build.mk
 511
 512                 # allows overriding build flavours for libraries:
 513                 # v   - vanilla (static libs)
 514                 # p   - profiled
 515                 # dyn - shared libraries
 516                 # example: GHC_LIBRARY_WAYS="v dyn"
 517                 if [[ -n ${GHC_LIBRARY_WAYS} ]]; then
 518                         echo "GhcLibWays=${GHC_LIBRARY_WAYS}" >> mk/build.mk
 519                 fi
 520
 521                 # Get ghc from the unpacked binary .tbz2
 522                 # except when bootstrapping we just pick ghc up off the path
 523                 if ! use ghcbootstrap; then
 524                         export PATH="${WORKDIR}/usr/bin:${PATH}"
 525                 fi
 526
 527                 if use gmp; then
 528                         echo "INTEGER_LIBRARY=integer-gmp2" >> mk/build.mk
 529                 else
 530                         echo "INTEGER_LIBRARY=integer-simple" >> mk/build.mk
 531                 fi
 532
 533                 # don't strip anything. Very useful when stage2 SIGSEGVs on you
 534                 echo "STRIP_CMD = :" >> mk/build.mk
 535
 536                 local econf_args=()
 537
 538                 # GHC embeds 'gcc' it was built by and uses it later.
 539                 # Don't allow things like ccache or versioned binary slip.
 540                 # We use stable thing across gcc upgrades.
 541                 is_crosscompile || econf_args+=(--with-gcc=${CHOST}-gcc)
 542
 543                 if use ghcmakebinary; then
 544                         # When building booting libary we are trying to
 545                         # bundle or restrict most of external depends
 546                         # with unstable ABI:
 547                         #  - embed libffi (default GHC behaviour)
 548                         #  - disable ncurses support for ghci (via haskeline)
 549                         #    https://bugs.gentoo.org/557478
 550                         #  - disable ncurses support for ghc-pkg
 551                         echo "libraries/haskeline_CONFIGURE_OPTS += --flag=-terminfo" >> mk/build.mk
 552                         echo "utils/ghc-pkg_HC_OPTS += -DBOOTSTRAPPING" >> mk/build.mk
 553                 else
 554                         econf_args+=(--with-system-libffi)
 555                         econf_args+=(--with-ffi-includes=$(pkg-config libffi --cflags-only-I | sed -e 's@^-I@@'))
 556                 fi
 557
 558                 elog "Final mk/build.mk:"
 559                 cat mk/build.mk || die
 560
 561                 econf ${econf_args[@]} --enable-bootstrap-with-devel-snapshot
 562
 563                 if [[ ${PV} == *9999* ]]; then
 564                         GHC_PV="$(grep 'S\[\"PACKAGE_VERSION\"\]' config.status | sed -e 's@^.*=\"\(.*\)\"@\1@')"
 565                         GHC_P=${PN}-${GHC_PV}
 566                 fi
 567         fi # ! use binary
 568 }
 569
 570 src_compile() {
 571         if ! use binary; then
 572                 # 1. build compiler binary first
 573                 emake ghc/stage2/build/tmp/ghc-stage2
 574                 # 2. pax-mark (bug #516430)
 575                 pax-mark -m ghc/stage2/build/tmp/ghc-stage2
 576                 # 3. and then all the rest
 577                 emake all
 578         fi # ! use binary
 579 }
 580
 581 src_install() {
 582         if use binary; then
 583                 use prefix && mkdir -p "${ED}"
 584                 mv "${S}/usr" "${ED}"
 585         else
 586
 587                 emake -j1 install DESTDIR="${D}"
 588                 dodoc "distrib/README" "ANNOUNCE" "LICENSE" "VERSION"
 589
 590                 # rename ghc-shipped files to avoid collision
 591                 # of external packages. Motivating example:
 592                 #  user had installed:
 593                 #      dev-lang/ghc-7.8.4-r0 (with transformers-0.3.0.0)
 594                 #      dev-haskell/transformers-0.4.2.0
 595                 #  then user tried to update to
 596                 #      dev-lang/ghc-7.8.4-r1 (with transformers-0.4.2.0)
 597                 #  this will lead to single .conf file collision.
 598                 local shipped_conf renamed_conf
 599                 local package_confdir="${ED}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d"
 600                 for shipped_conf in "${package_confdir}"/*.conf; do
 601                         # rename 'pkg-ver-id.conf' to 'pkg-ver-id-gentoo-${PF}.conf'
 602                         renamed_conf=${shipped_conf%.conf}-gentoo-${PF}.conf
 603                         mv "${shipped_conf}" "${renamed_conf}" || die
 604                 done
 605
 606                 # remove link, but leave 'haddock-${GHC_P}'
 607                 rm -f "${ED}"/usr/bin/$(cross)haddock
 608
 609                 if [[ ! -f "${S}/VERSION" ]]; then
 610                         echo "${GHC_PV}" > "${S}/VERSION" \
 611                                 || die "Could not create file ${S}/VERSION"
 612                 fi
 613                 if ! is_crosscompile; then
 614                         newbashcomp "${FILESDIR}"/ghc-bash-completion ghc-pkg
 615                         newbashcomp utils/completion/ghc.bash         ghc
 616                 fi
 617         fi
 618
 619         # path to the package.cache
 620         local package_confdir="${ED}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d"
 621         PKGCACHE="${package_confdir}"/package.cache
 622         # copy the package.conf.d, including timestamp, save it so we can help
 623         # users that have a broken package.conf.d
 624         cp -pR "${package_confdir}"{,.initial} || die "failed to backup intial package.conf.d"
 625
 626         # copy the package.conf, including timestamp, save it so we later can put it
 627         # back before uninstalling, or when upgrading.
 628         cp -p "${PKGCACHE}"{,.shipped} \
 629                 || die "failed to copy package.conf.d/package.cache"
 630 }
 631
 632 pkg_preinst() {
 633         # have we got an earlier version of ghc installed?
 634         if has_version "<${CATEGORY}/${PF}"; then
 635                 haskell_updater_warn="1"
 636         fi
 637 }
 638
 639 pkg_postinst() {
 640         ghc-reregister
 641
 642         # path to the package.cache
 643         PKGCACHE="${EROOT}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/package.cache"
 644
 645         # give the cache a new timestamp, it must be as recent as
 646         # the package.conf.d directory.
 647         touch "${PKGCACHE}"
 648
 649         if [[ "${haskell_updater_warn}" == "1" ]]; then
 650                 ewarn
 651                 ewarn "\e[1;31m************************************************************************\e[0m"
 652                 ewarn
 653                 ewarn "You have just upgraded from an older version of GHC."
 654                 ewarn "You may have to run"
 655                 ewarn "      'haskell-updater'"
 656                 ewarn "to rebuild all ghc-based Haskell libraries."
 657                 ewarn
 658                 ewarn "\e[1;31m************************************************************************\e[0m"
 659                 ewarn
 660         fi
 661 }
 662
 663 pkg_prerm() {
 664         PKGCACHE="${EROOT}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/package.cache"
 665         rm -rf "${PKGCACHE}"
 666
 667         cp -p "${PKGCACHE}"{.shipped,}
 668 }
 669
 670 pkg_postrm() {
 671         ghc-package_pkg_postrm
 672 }