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+# Maintainer: jc_gargma <jc_gargma@iserlohn-fortress.net>
+# Maintainer (Arch): Anatol Pomozov <anatol.pomozov@gmail.com>
+# Contributor (Arch): Martin Schmölzer <mschmoelzer@gmail.com>
+
+# # I maintain this because:
+# Not in an official repo and I use it
+
+# binutils -> gcc-bootstrap -> newlib -> gcc -> newlib -> gcc
+
+_target=arm-none-eabi
+pkgname=$_target-gcc
+pkgver=9.2.0
+_islver=0.22
+pkgrel=1
+pkgdesc='The GNU Compiler Collection - cross compiler for ARM EABI (bare-metal) target'
+arch=(x86_64 i686 armv7h aarch64)
+url='https://gcc.gnu.org/'
+license=(GPL LGPL FDL)
+depends=($_target-binutils libmpc zlib)
+makedepends=(gmp mpfr $_target-newlib)
+optdepends=("$_target-newlib: Standard C library ($_target target)")
+options=(!emptydirs !strip)
+source=(https://gcc.gnu.org/pub/gcc/releases/gcc-$pkgver/gcc-$pkgver.tar.xz{,.sig}
+        http://isl.gforge.inria.fr/isl-$_islver.tar.xz)
+b2sums=('41a5e148f9a6857d6599679964c203533f76f330ad527fbe7c5e746d78f6f6f6d6d0f330a67cb1e794e155be8d1cd6e986bcc8a116d620dca410b78f0bcdd453'
+        'SKIP'
+        '1cb2125761adec02d9f337e8730faa5bc3a4e63cb7d968f7f4de3a3360b1f9be6caf6a27031f02df1ebe149fb70b6a32bdddbe8ae03032b8ff366f4eac274483')
+validpgpkeys=(33C235A34C46AA3FFB293709A328C3A2C3C45C06) # Jakub Jelinek <jakub@redhat.com>
+
+prepare() {
+  cd gcc-$pkgver
+
+  # link isl for in-tree builds
+  ln -sf ../isl-$_islver isl
+
+  echo $pkgver > gcc/BASE-VER
+
+  # hack! - some configure tests for header files using "$CPP $CPPFLAGS"
+  sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" "$srcdir"/gcc-$pkgver/{libiberty,gcc}/configure
+
+  mkdir $srcdir/build-{gcc,gcc-nano}
+}
+
+_build_gcc() {
+  $srcdir/gcc-$pkgver/configure \
+    --target=$_target \
+    --prefix=/usr \
+    --libexecdir=/usr/lib \
+    --with-sysroot=/usr/$_target \
+    --with-native-system-header-dir=/include \
+    --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/$_target/include \
+    --with-python-dir=share/gcc-$_target \
+    --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=rmprofile
+
+  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.*
+}