PKGBUILD

# $Id$
# Maintainer:  Bartłomiej Piotrowski <bpiotrowski@archlinux.org>
# Contributor: Allan McRae <allan@archlinux.org>

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

pkgname=(gcc7 gcc7-libs)
pkgver=7.3.1+20180406
_majorver=${pkgver:0:1}
_islver=0.18
pkgrel=1
pkgdesc='The GNU Compiler Collection'
arch=(x86_64)
license=(GPL LGPL FDL custom)
url='http://gcc.gnu.org'
makedepends=(binutils libmpc doxygen lib32-glibc lib32-gcc-libs python)
checkdepends=(dejagnu inetutils)
options=(!emptydirs)
#source=(https://ftp.gnu.org/gnu/gcc/gcc-$pkgver/gcc-$pkgver.tar.xz{,.sig}
source=(https://sources.archlinux.org/other/gcc/gcc-${pkgver/+/-}.tar.xz{,.sig}
        http://isl.gforge.inria.fr/isl-${_islver}.tar.bz2
        c89 c99
        bz84080.patch)
validpgpkeys=(F3691687D867B81B51CE07D9BBE43771487328A9  # bpiotrowski@archlinux.org
              13975A70E63C361C73AE69EF6EEB81F8981C74C7) # richard.guenther@gmail.com
sha256sums=('41675861b7fdb4ebfb5cbbe1bce456d4e4061ce4df95096075756eaae3263e00'
            'SKIP'
            '6b8b0fd7f81d0a957beb3679c81bbb34ccc7568d5682844d8924424a0dadcb1b'
            'de48736f6e4153f03d0a5d38ceb6c6fdb7f054e8f47ddd6af0a3dbf14f27b931'
            '2513c6d9984dd0a2058557bf00f06d8d5181734e41dcfe07be7ed86f2959622a'
            'bce05807443558db55f0d6b4dae37a678ea1bb3388b541c876fe3d110e3717e7')

_svnrev=259195
_svnurl=svn://gcc.gnu.org/svn/gcc/branches/gcc-${_majorver}-branch
_libdir=usr/lib/gcc/$CHOST/${pkgver%%+*}

snapshot() {
  svn export -r${_svnrev} ${_svnurl} gcc-r${_svnrev}

  local datestamp basever _pkgver
  basever=$(< gcc-r${_svnrev}/gcc/BASE-VER)
  datestamp=$(< gcc-r${_svnrev}/gcc/DATESTAMP)
  _pkgver=${basever}-${datestamp}

  mv gcc-r${_svnrev} gcc-${_pkgver}
  tar cf - gcc-${_pkgver} | xz > gcc-${_pkgver}.tar.xz
  rm -rf gcc-${_pkgver}
  gpg -b gcc-${_pkgver}.tar.xz
  scp gcc-${_pkgver}.tar.xz{,.sig} sources.archlinux.org:/srv/ftp/other/gcc/

  echo
  echo "pkgver=${_pkgver/-/+}"
}

prepare() {
  [[ ! -d gcc ]] && ln -s gcc-${pkgver/+/-} gcc
  cd gcc

  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84080
  patch -p0 -i "$srcdir/bz84080.patch"

  # 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
  sed -i '/m64=/s/lib64/lib/' gcc/config/i386/t-linux64

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

  mkdir -p "$srcdir/gcc-build"
}

build() {
  cd 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/gcc/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++,lto \
      --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 \
      --enable-checking=release \
      --enable-default-pie \
      --enable-default-ssp

  make

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

check() {
  cd gcc-build

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

package_gcc7-libs() {
  pkgdesc='Runtime libraries shipped by GCC'
  groups=(base)
  depends=('glibc>=2.27')
  options+=(!strip)
  provides=($pkgname-multilib libgo.so libgfortran.so)
  replaces=($pkgname-multilib)

  cd gcc-build
  make -C $CHOST/libgcc DESTDIR="$pkgdir" install-shared
  rm -f "$pkgdir/$_libdir/libgcc_eh.a"

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

  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 -f "$pkgdir/usr/lib/libmpx.spec"

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

  # remove files provided by lib32-gcc-libs
  rm -rf "$pkgdir"/usr/lib32/

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

package_gcc7() {
  pkgdesc="The GNU Compiler Collection - C and C++ frontends"
  depends=("gcc-libs=$pkgver-$pkgrel" 'binutils>=2.28' libmpc)
  groups=('base-devel')
  optdepends=('lib32-gcc-libs: for generating code for 32-bit ABI')
  provides=($pkgname-multilib)
  replaces=($pkgname-multilib)
  options+=(staticlibs)

  cd 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
  rm -f "$pkgdir"/usr/lib{,32}/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 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}/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 /${_libdir}/liblto_plugin.so \
    "$pkgdir/usr/lib/bfd-plugins/"

  make -C $CHOST/libcilkrts DESTDIR="$pkgdir" install-nodist_{toolexeclib,cilkinclude}HEADERS
  make -C $CHOST/libgomp DESTDIR="$pkgdir" install-nodist_{libsubinclude,toolexeclib}HEADERS
  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 libiberty DESTDIR="$pkgdir" install
  install -m644 libiberty/pic/libiberty.a "$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
  install -Dm755 "$srcdir/c89" "$pkgdir/usr/bin/c89"
  install -Dm755 "$srcdir/c99" "$pkgdir/usr/bin/c99"

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

  # remove files provided by lib32-gcc-libs
  rm -f "$pkgdir"/usr/lib32/lib{stdc++,gcc_s}.so

  # byte-compile python libraries
  python -m compileall "$pkgdir/usr/share/gcc-${pkgver%%+*}/"
  python -O -m compileall "$pkgdir/usr/share/gcc-${pkgver%%+*}/"

  # Install Runtime Library Exception
  install -d "$pkgdir/usr/share/licenses/$pkgname/"
  ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
    "$pkgdir/usr/share/licenses/$pkgname/"
}