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+# Maintainer: Georgios Kourachanis < geo dot kourachanis at gmail dot com >
+# Contributor: Anatol Pomozov < anatol dot pomozov at gmail dot com > (arm-none-eabi-gcc)
+# Contributor: Martin Schmölzer < mschmoelzer at gmail dot com > (arm-none-eabi-gcc)
+
+_target=arm-none-eabi
+pkgname=$_target-gcc55
+pkgver=5.5.0
+_islver=0.18
+pkgrel=1
+# _snapshot=7-20170907
+pkgdesc='The GNU Compiler Collection - cross compiler for ARM EABI (bare-metal) target'
+arch=(i686 x86_64)
+url='http://gcc.gnu.org/'
+license=(GPL LGPL FDL)
+depends=($_target-binutils zlib libmpc)
+makedepends=(gmp mpfr $_target-newlib)
+provides=('arm-none-eabi-gcc')
+conflicts=('arm-none-eabi-gcc')
+optdepends=('arm-none-eabi-newlib: Standard C library optimized for embedded systems')
+options=(!emptydirs !strip)
+source=(ftp://gcc.gnu.org/pub/gcc/releases/gcc-$pkgver/gcc-$pkgver.tar.xz
+ #ftp://gcc.gnu.org/pub/gcc/snapshots/$_snapshot/gcc-$_snapshot.tar.xz
+ http://isl.gforge.inria.fr/isl-$_islver.tar.bz2
+ enable-with-multilib-list-for-arm.patch)
+sha512sums=('670ff52c2ae12c7852c12987e91798c5aa8bd6daf21f0d6e0cd57a4aa59cc4f06a837fe76426eaa1424cfddca937bed377680700eadc04d76b9180d462364fa1'
+ '85d0b40f4dbf14cb99d17aa07048cdcab2dc3eb527d2fbb1e84c41b2de5f351025370e57448b63b2b8a8cf8a0843a089c3263f9baee1542d5c2e1cb37ed39d94'
+ '4831a862a0ee50918297f35da48919f326ad9e8b3a2a97d4b130e08c0e781a0e6c44e918d2618ba73be2ce0f8d0365b063ed5650a4bd8a5e26ee37a78647b2d2')
+
+if [ -n "$_snapshot" ]; then
+ _basedir=gcc-$_snapshot
+else
+ _basedir=gcc-$pkgver
+fi
+
+prepare() {
+ cd $_basedir
+
+ # link isl for in-tree builds
+ ln -s ../isl-$_islver isl
+
+ 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
+
+ patch -p1 < $srcdir/enable-with-multilib-list-for-arm.patch
+
+ mkdir $srcdir/build-{gcc,gcc-nano}
+}
+
+_build_gcc() {
+ $srcdir/$_basedir/configure \
+ --target=$_target \
+ --prefix=/usr \
+ --with-sysroot=/usr/$_target \
+ --with-native-system-header-dir=/include \
+ --libexecdir=/usr/lib \
+ --enable-languages=c,c++ \
+ --enable-plugins \
+ --disable-decimal-float \
+ --disable-libffi \
+ --disable-libgomp \
+ --disable-libmudflap \
+ --disable-libquadmath \
+ --disable-libssp \
+ --disable-libstdcxx-pch \
+ --disable-nls \
+ --disable-shared \
+ --disable-threads \
+ --disable-tls \
+ --with-gnu-as \
+ --with-gnu-ld \
+ --with-system-zlib \
+ --with-newlib \
+ --with-headers=/usr/$_target/include \
+ --with-python-dir=share/gcc-arm-none-eabi \
+ --with-gmp \
+ --with-mpfr \
+ --with-mpc \
+ --with-isl \
+ --with-libelf \
+ --enable-gnu-indirect-function \
+ --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' \
+ --with-pkgversion='Arch Repository' \
+ --with-bugurl='https://bugs.archlinux.org/' \
+ --with-multilib-list=armv6-m,armv7-m,armv7e-m,armv7-r
+
+ make INHIBIT_LIBC_CFLAGS='-DUSE_TM_CLONE_REGISTRY=0'
+}
+
+build() {
+ cd $srcdir/build-gcc
+ export CFLAGS_FOR_TARGET='-g -Os -ffunction-sections -fdata-sections'
+ export CXXFLAGS_FOR_TARGET='-g -Os -ffunction-sections -fdata-sections'
+ _build_gcc
+
+ # Build libstdc++ without exceptions support (the 'nano' variant)
+ cd $srcdir/build-gcc-nano
+ export CFLAGS_FOR_TARGET='-g -Os -ffunction-sections -fdata-sections -fno-exceptions'
+ export CXXFLAGS_FOR_TARGET='-g -Os -ffunction-sections -fdata-sections -fno-exceptions'
+ _build_gcc
+}
+
+package() {
+ cd $srcdir/build-gcc
+ make DESTDIR="$pkgdir" install -j1
+
+ cd $srcdir/build-gcc-nano
+ make DESTDIR="$pkgdir.nano" install -j1
+ # we need only libstdc nano files
+ multilibs=( $($pkgdir/usr/bin/$_target-gcc -print-multi-lib 2>/dev/null) )
+ for multilib in "${multilibs[@]}"; do
+ dir="${multilib%%;*}"
+ from_dir=$pkgdir.nano/usr/$_target/lib/$dir
+ to_dir=$pkgdir/usr/$_target/lib/$dir
+ cp -f $from_dir/libstdc++.a $to_dir/libstdc++_nano.a
+ cp -f $from_dir/libsupc++.a $to_dir/libsupc++_nano.a
+ done
+
+ # strip target binaries
+ find "$pkgdir"/usr/lib/gcc/$_target/$pkgver "$pkgdir"/usr/$_target/lib -type f -and \( -name \*.a -or -name \*.o \) -exec $_target-objcopy -R .comment -R .note -R .debug_info -R .debug_aranges -R .debug_pubnames -R .debug_pubtypes -R .debug_abbrev -R .debug_line -R .debug_str -R .debug_ranges -R .debug_loc '{}' \;
+
+ # strip host binaries
+ find "$pkgdir"/usr/bin/ "$pkgdir"/usr/lib/gcc/$_target/$pkgver -type f -and \( -executable \) -exec strip '{}' \;
+
+ # Remove files that conflict with host gcc package
+ rm -r "$pkgdir"/usr/share/man/man7
+ rm -r "$pkgdir"/usr/share/info
+ rm "$pkgdir"/usr/lib/libcc1.*
+}