# $Id: PKGBUILD 186915 2013-05-31 23:25:14Z allan $
# Maintainer: Allan McRae <allan@archlinux.org>
# Maintainer (Parabola): André Silva <emulatorman@lavabit.com>
# Contributor (Parabola): Márcio Silva <coadde@lavabit.com>

pkgname=xtensa-elf-gcc
pkgver=4.8.1
pkgrel=1
#_snapshot=4.8-20130502
pkgdesc="The GNU Compiler Collection"
arch=('i686' 'x86_64' 'mips64el')
license=('GPL' 'LGPL' 'FDL' 'custom')
url="http://gcc.gnu.org"
makedepends=('xtensa-elf-binutils>=2.23' 'libmpc' 'cloog' 'gcc-ada' 'doxygen')
checkdepends=('dejagnu' 'inetutils')
options=('!libtool' '!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
md5sums=('3b2386c114cd74185aa3754b58a79304')


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

prepare() {
  cd ${srcdir}/${_basedir}

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

  # Parabola 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

  mkdir ${srcdir}/gcc-build
}

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

  export LD_LIBRARY_PATH=/usr/lib

  # 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://labs.parabola.nu/ \
      --enable-languages=c \
      --enable-shared --enable-threads=posix \
      --with-system-zlib --enable-__cxa_atexit \
      --disable-libunwind-exceptions --enable-clocale=gnu \
      --disable-libstdcxx-pch \
      --enable-gnu-unique-object --enable-linker-build-id \
      --enable-cloog-backend=isl --disable-cloog-version-check \
      --enable-lto --enable-gold --enable-ld=default \
      --enable-plugin --with-plugin-ld=ld.gold \
      --with-linker-hash-style=gnu --disable-install-libiberty \
      --disable-multilib --disable-libssp --disable-werror \
      --enable-checking=release \
      --program-prefix=xtensa-elf- \
      --target=xtensa-elf
  make
  
  # make documentation
  cd xtensa-elf/libstdc++-v3
  make 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()
{
  pkgdesc="The GNU Compiler Collection"
  depends=("gcc-libs=$pkgver-$pkgrel" 'xtensa-elf-binutils>=2.23' 'libmpc' 'cloog')
  install=xtensa-elf-gcc.install

  cd ${srcdir}/gcc-build
  
  make -j1 DESTDIR=${pkgdir} install

  install -d $pkgdir/usr/share/gdb/auto-load/usr/lib
  mv $pkgdir{,/usr/share/gdb/auto-load}/usr/lib/libstdc++.so.6.0.18-gdb.py

  # unfortunately it is much, much easier to install the lot and clean-up the mess...
  rm $pkgdir/usr/bin/{{xtensa-elf-,}gfortran,{xtensa-elf-,}gccgo,gnat*}
  rm $pkgdir/usr/lib/*.so*
  rm $pkgdir/usr/lib/lib{atomic,gfortran,go{,begin},iberty,objc}.a
  rm $pkgdir/usr/lib/libgfortran.spec
  rm -r $pkgdir/usr/lib/gcc/xtensa-elf/${pkgver}/{ada{include,lib},finclude,include/objc}
  rm $pkgdir/usr/lib/gcc/xtensa-elf/${pkgver}/{cc1obj{,plus},f951,gnat1,go1}
  rm $pkgdir/usr/lib/gcc/xtensa-elf/${pkgver}/{libcaf_single,libgfortranbegin}.a
  rm -r $pkgdir/usr/lib/go
  rm $pkgdir/usr/share/info/{gccgo,gfortran,gnat*,libgomp,libquadmath,libitm}.info
  rm $pkgdir/usr/share/locale/{de,fr}/LC_MESSAGES/libstdc++.mo
  rm $pkgdir/usr/share/man/man1/{gccgo,gfortran}.1

  # many packages expect this symlinks
  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
  install -dm755 ${pkgdir}/usr/share/man/man3
  install -m644 -t ${pkgdir}/usr/share/man/man3 \
    xtensa-elf/libstdc++-v3/doc/doxygen/man/man3/*.3

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