PKGBUILD


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# Maintainer:  Chris Severance aur.severach aATt spamgourmet dott com
# Contributor: Sebastiaan Lokhorst <sebastiaanlokhorst@gmail.com>
# Contributor: Sven-Hendrik Haase <svenstaro@gmail.com>
# Contributor: Ruben Van Boxem <vanboxem.ruben@gmail.com>
# Contributor: Allan McRae <allan@archlinux.org>

set -u
_pkgver='5'
pkgname="gcc${_pkgver//./}"
pkgver="${_pkgver}.5.0"
_islver='0.18'
pkgrel='3'
pkgdesc="The GNU Compiler Collection (${_pkgver}.x)"
arch=('x86_64')
arch+=('i686')
url='https://gcc.gnu.org/gcc-5/'
license=('GPL' 'LGPL' 'FDL' 'custom')
depends=('glibc' 'binutils' 'libmpc')
options=('!emptydirs' '!strip' '!buildflags')
source=(
  "http://gcc.gnu.org/pub/gcc/releases/gcc-${pkgver}/gcc-${pkgver}.tar.xz"
  "http://isl.gforge.inria.fr/isl-${_islver}.tar.bz2"
  # Fix build with glibc 2.28, which removes <sys/ustat.h>
  'glibc2.28-ustat.patch'
  'glibc2.30-ipc_perm.patch'
)
md5sums=('0f70424213b4a1113c04ba66ddda0c1f'
         '11436d6b205e516635b666090b94ab32'
         '75b0fabc92d4e2735baa897f231e7d68'
         '04e73dd6a55a90a4fee9999a915580d3')
sha256sums=('530cea139d82fe542b358961130c69cfde8b3d14556370b65823d2f91f0ced87'
            '6b8b0fd7f81d0a957beb3679c81bbb34ccc7568d5682844d8924424a0dadcb1b'
            '335839750f0cf15ce0f6099673daf164db674c6442b00efcbc46c4f195cfa29d'
            '95d619636a2bae64acc01fdbe18ad61b4b0483217ee00eac372f0b0bec073f32')

  _basedir="gcc-${pkgver}"

prepare() {
  set -u
  cd "${_basedir}"

  # link isl for in-tree builds
  ln -s "../isl-${_islver}" 'isl'

  # Do not run fixincludes
  sed -e 's@\./fixinc\.sh@-c true@' -i 'gcc/Makefile.in'

  local _pt
  for _pt in "${source[@]%%::*}"; do
    _pt="${_pt##*/}"
    if [[ "${_pt}" = *.patch ]]; then
      set +u; msg2 "Patch ${_pt}"; set -u
      patch -Nup0 -i "${srcdir}/${_pt}"
    fi
  done

  # Arch Linux installs x86_64 libraries /lib
  case "${CARCH}" in
  'x86_64') sed -e '/m64=/ s/lib64/lib/' -i 'gcc/config/i386/t-linux64' ;;
  esac

  echo "${pkgver}" > 'gcc/BASE-VER'

  rm -rf 'gcc-build'
  mkdir 'gcc-build'

  set +u
}

build() {
  set -u
  cd "${_basedir}/gcc-build"

  if [ ! -s 'Makefile' ]; then
    # The following options are one per line, mostly sorted so they are easy to diff compare to other gcc packages.
    local _conf=(
      --build="${CHOST}"
      --disable-libssp
      --disable-libstdcxx-pch
      --disable-libunwind-exceptions
      --disable-multilib
      --disable-werror
      --enable-__cxa_atexit
      --enable-checking='release'
      --enable-clocale='gnu'
      --with-isl
      --enable-gnu-indirect-function
      --enable-gnu-unique-object
      --enable-languages='c,c++,fortran,lto'
      --enable-libmpx
      --enable-linker-build-id
      --enable-lto
      --enable-plugin
      --enable-shared
      --enable-threads='posix'
      --enable-version-specific-runtime-libs
      --infodir='/usr/share/info'
      --libdir='/usr/lib'
      --libexecdir='/usr/lib'
      --mandir='/usr/share/man'
      --program-suffix="-${_pkgver}"
      --with-bugurl='https://bugs.archlinux.org/'
      --with-linker-hash-style='gnu'
      --with-system-zlib
      --prefix='/usr'
      #CXX='g++ -std=c++14'
      #CXX='g++-6.3' CC='gcc-6.3'
    )
    ../configure "${_conf[@]}"

    sed -e 's/^STAGE1_CXXFLAGS.*$/& -std=gnu++11/' -i 'Makefile'
  fi

  # without LD_PRELOAD, the build fails for some people with:
  #    [Makefile:605: libstdc++.la] Error 139
  LD_PRELOAD='/usr/lib/libstdc++.so' \
  nice make -s
  set +u
}

package() {
  set -u
  cd "${_basedir}/gcc-build"

  LD_PRELOAD='/usr/lib/libstdc++.so' \
  make -j1 DESTDIR="${pkgdir}" install

  ## Lazy way of dealing with conflicting man and info pages and locales...
  rm -rf "${pkgdir}/usr/share"/{info,locale,man}

  # Move potentially conflicting stuff to version specific subdirectory
  [[ -d "${pkgdir}/usr/lib" ]] && mv "${pkgdir}/usr/lib"/lib* "${pkgdir}/usr/lib/gcc/${CHOST}/${pkgver}/"
  [[ -d "${pkgdir}/usr/lib/gcc/${CHOST}/lib/" ]] && mv "${pkgdir}/usr/lib/gcc/${CHOST}/lib"/lib* "${pkgdir}/usr/lib/gcc/${CHOST}/${pkgver}/"

  # Install Runtime Library Exception
  install -Dpm644 '../COPYING.RUNTIME' \
    "${pkgdir}/usr/share/licenses/${pkgname}/RUNTIME.LIBRARY.EXCEPTION" || :
  set +u
}
set +u