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# $Id: PKGBUILD 163137 2016-02-22 12:25:27Z allan $
# Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
# Contributor: Allan McRae <allan@archlinux.org>
# x32 Maintainer: Fantix King <fantix.king@gmail.com>

# toolchain build order: linux-api-headers->glibc->binutils->gcc->binutils->glibc
# NOTE: libtool requires rebuilt with each new gcc version

pkgname=('gcc-multilib-x32' 'gcc-libs-multilib-x32' 'libx32-gcc-libs' 'gcc-fortran-multilib-x32' 'gcc-objc-multilib-x32' 'gcc-ada-multilib-x32' 'gcc-go-multilib-x32')
pkgver=5.3.0
_pkgver=5
_islver=0.15
pkgrel=5.1
_snapshot=5-20160209
pkgdesc="The GNU Compiler Collection for multilib with x32 ABI support"
arch=('x86_64')
license=('GPL' 'LGPL' 'FDL' 'custom')
url="http://gcc.gnu.org"
makedepends=('binutils>=2.26' 'libmpc' 'gcc-ada-multilib' 'doxygen'
             'lib32-glibc>=2.23' 'libx32-glibc>=2.23')
checkdepends=('dejagnu' 'inetutils')
options=('!emptydirs')
source=(#ftp://gcc.gnu.org/pub/gcc/releases/gcc-${pkgver}/gcc-${pkgver}.tar.bz2
        ftp://gcc.gnu.org/pub/gcc/snapshots/${_snapshot}/gcc-${_snapshot}.tar.bz2
        http://isl.gforge.inria.fr/isl-${_islver}.tar.bz2
        Unlink-the-response-file.patch)
md5sums=('499161c65b639aa5c12a14944582b7ec'
         '8428efbbc6f6e2810ce5c1ba73ecf98c'
         '1f4d4ef71004261376d26d5ba6a84499')

if [ -n "${_snapshot}" ]; then
  _basedir=gcc-${_snapshot}
else
  _basedir=gcc-${pkgver}
fi

_libdir="usr/lib/gcc/$CHOST/${pkgver}"

prepare() {
  if [ ! `zgrep CONFIG_X86_X32=y /proc/config.gz` ]; then
    error "Your current kernel doesn't support X32 ABI!"
    msg2 "You need to install a kernel with CONFIG_X86_X32=y"
    msg2 "linux-pf from AUR for example supports X32 ABI"
    exit 1
  fi

  cd ${srcdir}/${_basedir}

  # link isl for in-tree build
  ln -s ../isl-${_islver} isl

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

  # Arch Linux installs x86_64 libraries /lib
  [[ $CARCH == "x86_64" ]] && sed -i '/m64=/s/lib64/lib/' gcc/config/i386/t-linux64

  echo ${pkgver} > gcc/BASE-VER

  # hack! - some configure tests for header files using "$CPP $CPPFLAGS"
  sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" {libiberty,gcc}/configure

  # https://bugs.archlinux.org/task/47874 - commit f591a95d
  patch -p1 -i $srcdir/Unlink-the-response-file.patch

  mkdir ${srcdir}/gcc-build
}

build() {
  cd ${srcdir}/gcc-build

  # using -pipe causes spurious test-suite failures
  # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48565
  CFLAGS=${CFLAGS/-pipe/}
  CXXFLAGS=${CXXFLAGS/-pipe/}

  ${srcdir}/${_basedir}/configure --prefix=/usr \
      --libdir=/usr/lib --libexecdir=/usr/lib \
      --mandir=/usr/share/man --infodir=/usr/share/info \
      --with-bugurl=https://bugs.archlinux.org/ \
      --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ \
      --enable-shared --enable-threads=posix --enable-libmpx \
      --with-system-zlib --with-isl --enable-__cxa_atexit \
      --disable-libunwind-exceptions --enable-clocale=gnu \
      --disable-libstdcxx-pch --disable-libssp \
      --enable-gnu-unique-object --enable-linker-build-id \
      --enable-lto --enable-plugin --enable-install-libiberty \
      --with-linker-hash-style=gnu --enable-gnu-indirect-function \
      --enable-multilib --disable-werror \
      --with-multilib-list=m32,m64,mx32 \
      --enable-checking=release

  make
  
  # make documentation
  make -C $CHOST/libstdc++-v3/doc doc-man-doxygen
}

check() {
  cd ${srcdir}/gcc-build

  # increase stack size to prevent test failures
  # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31827
  ulimit -s 32768

  # do not abort on error as some are "expected"
  make -k check || true
  ${srcdir}/${_basedir}/contrib/test_summary
}

package_libx32-gcc-libs()
{
  pkgdesc="Runtime libraries shipped by GCC (x32 ABI)"
  depends=('libx32-glibc>=2.23')
  options=('!emptydirs' '!strip')

  cd ${srcdir}/gcc-build

  make -C $CHOST/x32/libgcc DESTDIR=${pkgdir} install-shared
  rm ${pkgdir}/${_libdir}/x32/libgcc_eh.a

  for lib in libatomic \
             libcilkrts \
             libquadmath \
             libgfortran \
             libgo \
             libgomp \
             libitm \
             libsanitizer/{a,l,ub}san \
             libstdc++-v3/src \
             libvtv; do
    make -C $CHOST/x32/$lib DESTDIR=${pkgdir} install-toolexeclibLTLIBRARIES
  done

  make -C $CHOST/x32/libobjc DESTDIR=${pkgdir} install-libs

  make -C $CHOST/x32/libmpx DESTDIR=${pkgdir} install
  rm ${pkgdir}/usr/libx32/libmpx.spec || true

  # remove stuff in gcc-libs-multilib-x32
  rm -r ${pkgdir}/usr/lib

  # Install Runtime Library Exception
  install -Dm644 ${srcdir}/${_basedir}/COPYING.RUNTIME \
    ${pkgdir}/usr/share/licenses/libx32-gcc-libs/RUNTIME.LIBRARY.EXCEPTION
}

package_gcc-libs-multilib-x32()
{
  pkgdesc="Runtime libraries shipped by GCC for multilib with x32 ABI support"
  depends=('glibc>=2.23' "lib32-gcc-libs=$pkgver-${pkgrel%.*}" "libx32-gcc-libs=$pkgver-$pkgrel")
  provides=("gcc-libs=$pkgver-${pkgrel%.*}" "gcc-libs-multilib=$pkgver-${pkgrel%.*}")
  conflicts=('gcc-libs')
  options=('!emptydirs' '!strip')
  install=gcc-libs.install

  cd ${srcdir}/gcc-build
  
  make -C $CHOST/libgcc DESTDIR=${pkgdir} install-shared
  rm ${pkgdir}/${_libdir}/libgcc_eh.a
  
  for lib in libatomic \
             libcilkrts \
             libgfortran \
             libgo \
             libgomp \
             libitm \
             libquadmath \
             libsanitizer/{a,l,ub}san \
             libstdc++-v3/src \
             libvtv; do
    make -C $CHOST/$lib DESTDIR=${pkgdir} install-toolexeclibLTLIBRARIES
  done

  [[ $CARCH == "x86_64" ]] && \
    make -C $CHOST/libsanitizer/tsan DESTDIR=${pkgdir} install-toolexeclibLTLIBRARIES

  make -C $CHOST/libobjc DESTDIR=${pkgdir} install-libs

  make -C $CHOST/libstdc++-v3/po DESTDIR=${pkgdir} install

  make -C $CHOST/libmpx DESTDIR=${pkgdir} install
  rm ${pkgdir}/usr/lib/libmpx.spec

  for lib in libgomp \
             libitm \
             libquadmath; do
    make -C $CHOST/$lib DESTDIR=${pkgdir} install-info
  done

  # remove stuff in lib32-gcc-libs and libx32-gcc-libs
  rm -r ${pkgdir}/usr/lib{32,x32}

  # Install Runtime Library Exception
  install -Dm644 ${srcdir}/${_basedir}/COPYING.RUNTIME \
    ${pkgdir}/usr/share/licenses/gcc-libs-multilib-x32/RUNTIME.LIBRARY.EXCEPTION
}

package_gcc-multilib-x32()
{
  pkgdesc="The GNU Compiler Collection - C and C++ frontends for multilib with x32 ABI support"
  depends=("gcc-libs-multilib-x32=$pkgver-$pkgrel" 'binutils>=2.26' 'libmpc')
  groups=('x32-devel')
  options=('staticlibs')
  provides=("gcc=$pkgver-${pkgrel%.*}" "gcc-multilib=$pkgver-${pkgrel%.*}")
  conflicts=('gcc' 'gcc-x32-seed' 'gcc-multilib')
  install=gcc.install

  cd ${srcdir}/gcc-build

  make -C gcc DESTDIR=${pkgdir} install-driver install-cpp install-gcc-ar \
    c++.install-common install-headers install-plugin install-lto-wrapper

  install -m755 -t $pkgdir/usr/bin/ gcc/gcov{,-tool}
  install -m755 -t $pkgdir/${_libdir}/ gcc/{cc1,cc1plus,collect2,lto1}

  make -C $CHOST/libgcc DESTDIR=${pkgdir} install
  make -C $CHOST/32/libgcc DESTDIR=${pkgdir} install
  make -C $CHOST/x32/libgcc DESTDIR=${pkgdir} install
  rm ${pkgdir}/usr/lib{,32,x32}/libgcc_s.so*
  
  make -C $CHOST/libstdc++-v3/src DESTDIR=${pkgdir} install
  make -C $CHOST/libstdc++-v3/include DESTDIR=${pkgdir} install
  make -C $CHOST/libstdc++-v3/libsupc++ DESTDIR=${pkgdir} install
  make -C $CHOST/libstdc++-v3/python DESTDIR=${pkgdir} install
  make -C $CHOST/32/libstdc++-v3/src DESTDIR=${pkgdir} install
  make -C $CHOST/32/libstdc++-v3/include DESTDIR=${pkgdir} install
  make -C $CHOST/32/libstdc++-v3/libsupc++ DESTDIR=${pkgdir} install
  make -C $CHOST/x32/libstdc++-v3/src DESTDIR=${pkgdir} install
  make -C $CHOST/x32/libstdc++-v3/include DESTDIR=${pkgdir} install
  make -C $CHOST/x32/libstdc++-v3/libsupc++ DESTDIR=${pkgdir} install

  make DESTDIR=${pkgdir} install-libcc1
  install -d $pkgdir/usr/share/gdb/auto-load/usr/lib
  mv $pkgdir/usr/lib/libstdc++.so.6.*-gdb.py \
    $pkgdir/usr/share/gdb/auto-load/usr/lib/
  rm ${pkgdir}/usr/lib{,32,x32}/libstdc++.so*

  make DESTDIR=${pkgdir} install-fixincludes
  make -C gcc DESTDIR=${pkgdir} install-mkheaders

  make -C lto-plugin DESTDIR=${pkgdir} install
  install -dm755 ${pkgdir}/usr/lib/bfd-plugins/
  ln -s /usr/lib/gcc/$CHOST/${pkgver}/liblto_plugin.so \
    ${pkgdir}/usr/lib/bfd-plugins/

  make -C $CHOST/libcilkrts DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS \
    install-nodist_cilkincludeHEADERS
  make -C $CHOST/libgomp DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS \
    install-nodist_libsubincludeHEADERS
  make -C $CHOST/libitm DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/libquadmath DESTDIR=${pkgdir} install-nodist_libsubincludeHEADERS
  make -C $CHOST/libsanitizer DESTDIR=${pkgdir} install-nodist_{saninclude,toolexeclib}HEADERS
  make -C $CHOST/libsanitizer/asan DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/libmpx DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/32/libcilkrts DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/32/libgomp DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/32/libitm DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/32/libsanitizer DESTDIR=${pkgdir} install-nodist_{saninclude,toolexeclib}HEADERS
  make -C $CHOST/32/libsanitizer/asan DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/32/libmpx DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/x32/libcilkrts DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/x32/libgomp DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/x32/libitm DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/x32/libsanitizer DESTDIR=${pkgdir} install-nodist_{saninclude,toolexeclib}HEADERS
  make -C $CHOST/x32/libsanitizer/asan DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS
  make -C $CHOST/x32/libmpx DESTDIR=${pkgdir} install-nodist_toolexeclibHEADERS

  make -C libiberty DESTDIR=${pkgdir} install
  # install PIC version of libiberty
  install -m644 ${srcdir}/gcc-build/libiberty/pic/libiberty.a ${pkgdir}/usr/lib

  make -C gcc DESTDIR=${pkgdir} install-man install-info
  rm ${pkgdir}/usr/share/man/man1/{gccgo,gfortran}.1
  rm ${pkgdir}/usr/share/info/{gccgo,gfortran,gnat-style,gnat_rm,gnat_ugn}.info

  make -C libcpp DESTDIR=${pkgdir} install
  make -C gcc DESTDIR=${pkgdir} install-po

  # many packages expect this symlink
  ln -s gcc ${pkgdir}/usr/bin/cc

  # POSIX conformance launcher scripts for c89 and c99
  cat > $pkgdir/usr/bin/c89 <<"EOF"
#!/bin/sh
fl="-std=c89"
for opt; do
  case "$opt" in
    -ansi|-std=c89|-std=iso9899:1990) fl="";;
    -std=*) echo "`basename $0` called with non ANSI/ISO C option $opt" >&2
	    exit 1;;
  esac
done
exec gcc $fl ${1+"$@"}
EOF

  cat > $pkgdir/usr/bin/c99 <<"EOF"
#!/bin/sh
fl="-std=c99"
for opt; do
  case "$opt" in
    -std=c99|-std=iso9899:1999) fl="";;
    -std=*) echo "`basename $0` called with non ISO C99 option $opt" >&2
	    exit 1;;
  esac
done
exec gcc $fl ${1+"$@"}
EOF

  chmod 755 $pkgdir/usr/bin/c{8,9}9

  # install the libstdc++ man pages
  make -C $CHOST/libstdc++-v3/doc DESTDIR=$pkgdir doc-install-man

  # Install Runtime Library Exception
  install -d ${pkgdir}/usr/share/licenses/gcc-multilib-x32/
  ln -s ../gcc-libs-multilib-x32/RUNTIME.LIBRARY.EXCEPTION ${pkgdir}/usr/share/licenses/gcc-multilib-x32/

  rm ${pkgdir}/usr/share/man/man3/{random,regex}.3 || true
}

package_gcc-fortran-multilib-x32()
{
  pkgdesc="Fortran front-end for GCC for multilib with x32 ABI support"
  depends=("gcc-multilib-x32=$pkgver-$pkgrel")
  provides=("gcc-fortran=$pkgver-${pkgrel%.*}" "gcc-fortran-multilib=$pkgver-${pkgrel%.*}")
  conflicts=('gcc-fortran')
  options=('!emptydirs')
  install=gcc-fortran.install

  cd ${srcdir}/gcc-build
  make -C $CHOST/libgfortran DESTDIR=$pkgdir install-{caf,my}execlibLTLIBRARIES \
    install-{toolexeclibDATA,nodist_fincludeHEADERS}
  make -C $CHOST/32/libgfortran DESTDIR=$pkgdir install-{caf,my}execlibLTLIBRARIES \
    install-{toolexeclibDATA,nodist_fincludeHEADERS}
  make -C $CHOST/x32/libgfortran DESTDIR=$pkgdir install-{caf,my}execlibLTLIBRARIES \
    install-{toolexeclibDATA,nodist_fincludeHEADERS}
  make -C $CHOST/libgomp DESTDIR=$pkgdir install-nodist_fincludeHEADERS
  make -C gcc DESTDIR=$pkgdir fortran.install-{common,man,info}
  install -Dm755 gcc/f951 $pkgdir/${_libdir}/f951

  ln -s gfortran ${pkgdir}/usr/bin/f95

  # Install Runtime Library Exception
  install -d ${pkgdir}/usr/share/licenses/gcc-fortran-multilib-x32/
  ln -s ../gcc-libs-multilib-x32/RUNTIME.LIBRARY.EXCEPTION ${pkgdir}/usr/share/licenses/gcc-fortran-multilib-x32/
}

package_gcc-objc-multilib-x32()
{
  pkgdesc="Objective-C front-end for GCC for multilib with x32 ABI support"
  depends=("gcc-multilib-x32=$pkgver-$pkgrel")
  provides=("gcc-objc=$pkgver-${pkgrel%.*}" "gcc-objc-multilib=$pkgver-${pkgrel%.*}")
  conflicts=('gcc-objc')

  cd ${srcdir}/gcc-build
  make DESTDIR=$pkgdir -C $CHOST/libobjc install-headers
  install -dm755 $pkgdir/${_libdir}
  install -m755 gcc/cc1obj{,plus} $pkgdir/${_libdir}/

  # Install Runtime Library Exception
  install -d ${pkgdir}/usr/share/licenses/gcc-objc-multilib-x32/
  ln -s ../gcc-libs-multilib-x32/RUNTIME.LIBRARY.EXCEPTION ${pkgdir}/usr/share/licenses/gcc-objc-multilib-x32/
}

package_gcc-ada-multilib-x32()
{
  pkgdesc="Ada front-end for GCC (GNAT) for multilib with x32 ABI support"
  depends=("gcc-multilib-x32=$pkgver-$pkgrel")
  provides=("gcc-ada=$pkgver-${pkgrel%.*}" "gcc-ada-multilib=$pkgver-${pkgrel%.*}")
  conflicts=('gcc-ada')
  options=('staticlibs' '!emptydirs')
  install=gcc-ada.install

  cd ${srcdir}/gcc-build/gcc
  make DESTDIR=$pkgdir ada.install-{common,info}
  install -m755 gnat1 $pkgdir/${_libdir}

  cd ${srcdir}/gcc-build/$CHOST/32/libada
  make DESTDIR=${pkgdir} INSTALL="install" \
    INSTALL_DATA="install -m644" install-gnatlib

  cd ${srcdir}/gcc-build/$CHOST/x32/libada
  make DESTDIR=${pkgdir} INSTALL="install" \
    INSTALL_DATA="install -m644" install-gnatlib

  ln -s gcc ${pkgdir}/usr/bin/gnatgcc

  # insist on dynamic linking, but keep static libraries because gnatmake complains
  mv ${pkgdir}/${_libdir}/adalib/libgna{rl,t}-${_pkgver}.so ${pkgdir}/usr/lib
  ln -s libgnarl-${_pkgver}.so ${pkgdir}/usr/lib/libgnarl.so
  ln -s libgnat-${_pkgver}.so ${pkgdir}/usr/lib/libgnat.so
  rm ${pkgdir}/${_libdir}/adalib/libgna{rl,t}.so

  install -d ${pkgdir}/usr/lib32/
  mv ${pkgdir}/${_libdir}/32/adalib/libgna{rl,t}-${_pkgver}.so ${pkgdir}/usr/lib32
  ln -s libgnarl-${_pkgver}.so ${pkgdir}/usr/lib32/libgnarl.so
  ln -s libgnat-${_pkgver}.so ${pkgdir}/usr/lib32/libgnat.so
  rm ${pkgdir}/${_libdir}/32/adalib/libgna{rl,t}.so

  install -d ${pkgdir}/usr/libx32/
  mv ${pkgdir}/${_libdir}/x32/adalib/libgna{rl,t}-${_pkgver}.so ${pkgdir}/usr/libx32
  ln -s libgnarl-${_pkgver}.so ${pkgdir}/usr/libx32/libgnarl.so
  ln -s libgnat-${_pkgver}.so ${pkgdir}/usr/libx32/libgnat.so
  rm ${pkgdir}/${_libdir}/x32/adalib/libgna{rl,t}.so

  # Install Runtime Library Exception
  install -d ${pkgdir}/usr/share/licenses/gcc-ada-multilib-x32/
  ln -s ../gcc-libs-multilib-x32/RUNTIME.LIBRARY.EXCEPTION ${pkgdir}/usr/share/licenses/gcc-ada-multilib-x32/
}

package_gcc-go-multilib-x32()
{
  pkgdesc="Go front-end for GCC for multilib with x32 ABI support"
  depends=("gcc-multilib-x32=$pkgver-$pkgrel")
  provides=("gcc-go=$pkgver-${pkgrel%.*}" "gcc-go-multilib=$pkgver-${pkgrel%.*}")
  conflicts=('go' 'gcc-go')
  options=('!emptydirs')
  install=gcc-go.install

  cd ${srcdir}/gcc-build
  make -C $CHOST/libgo DESTDIR=$pkgdir install-exec-am
  make -C $CHOST/32/libgo DESTDIR=$pkgdir install-exec-am
  make -C $CHOST/x32/libgo DESTDIR=$pkgdir install-exec-am
  rm ${pkgdir}/usr/lib/libgo.so* ${pkgdir}/usr/lib32/libgo.so* ${pkgdir}/usr/libx32/libgo.so*
  make -C gcc DESTDIR=$pkgdir go.install-{common,man,info}
  install -Dm755 gcc/go1 $pkgdir/${_libdir}/go1

  make DESTDIR=${pkgdir} install-gotools

  # Install Runtime Library Exception
  install -d ${pkgdir}/usr/share/licenses/gcc-go-multilib-x32/
  ln -s ../gcc-libs-multilib-x32/RUNTIME.LIBRARY.EXCEPTION ${pkgdir}/usr/share/licenses/gcc-go-multilib-x32/
}