From c397a1c220fe795adcc9e5209a53ad02109f59a6 Mon Sep 17 00:00:00 2001
From: Travis Cline <travis.cline@gmail.com>
Date: Sun, 17 Feb 2013 23:44:57 -0600
Subject: [PATCH] Add gcc-go support

---
 core/gcc/PKGBUILD                    | 38 ++++++++++++++++++++++------
 core/gcc/gcc-4.7.1-libgo-write.patch | 12 +++++++++
 core/gcc/gcc-go.install              | 20 +++++++++++++++
 3 files changed, 62 insertions(+), 8 deletions(-)
 create mode 100644 core/gcc/gcc-4.7.1-libgo-write.patch
 create mode 100644 core/gcc/gcc-go.install

diff --git a/core/gcc/PKGBUILD b/core/gcc/PKGBUILD
index c22c06ac2..99fb1e8e7 100644
--- a/core/gcc/PKGBUILD
+++ b/core/gcc/PKGBUILD
@@ -13,9 +13,9 @@
 
 noautobuild=1
 
-pkgname=('gcc' 'gcc-libs' 'gcc-fortran' 'gcc-objc')
+pkgname=('gcc' 'gcc-libs' 'gcc-fortran' 'gcc-objc' 'gcc-go')
 pkgver=4.7.2
-pkgrel=4
+pkgrel=5
 #_snapshot=4.7-20120721
 pkgdesc="The GNU Compiler Collection"
 arch=('i686' 'x86_64')
@@ -26,8 +26,10 @@ checkdepends=('dejagnu')
 options=('!libtool' '!emptydirs' '!distcc')
 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
+	gcc-4.7.1-libgo-write.patch
         armhf-triplet-trunk.diff)
 md5sums=('cc308a0891e778cfda7a151ab8a6e762'
+         '5647f5bbbb74fab3013b396da1749d2a'
          'bd7330bd41845929f1e0efb3b7d0a060')
 
 if [ -n "${_snapshot}" ]; then
@@ -45,6 +47,9 @@ build() {
   # Do not run fixincludes
   sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in
 
+  # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53679
+  patch -p1 -i ${srcdir}/gcc-4.7.1-libgo-write.patch
+
   echo ${pkgver} > gcc/BASE-VER
 
   # using -pipe causes spurious test-suite failures
@@ -65,7 +70,7 @@ build() {
       --libdir=/usr/lib --libexecdir=/usr/lib \
       --mandir=/usr/share/man --infodir=/usr/share/info \
       --with-bugurl=https://bugs.archlinux.org/ \
-      --enable-languages=c,c++,fortran,lto,objc,obj-c++ \
+      --enable-languages=c,c++,fortran,go,lto,objc,obj-c++ \
       --enable-shared --enable-threads=posix \
       --with-system-zlib --enable-__cxa_atexit \
       --disable-libunwind-exceptions --enable-clocale=gnu \
@@ -143,17 +148,18 @@ package_gcc()
   mv $pkgdir{,/usr/share/gdb/auto-load}/usr/lib/libstdc++.so.6.0.17-gdb.py
 
   # unfortunately it is much, much easier to install the lot and clean-up the mess...
-  rm -f $pkgdir/usr/bin/{$CHOST-,}gfortran
+  rm -f $pkgdir/usr/bin/{{$CHOST-,}gfortran,{$CHOST-,}gccgo}
   rm -f $pkgdir/usr/lib/*.so*
-  rm -f $pkgdir/usr/lib/lib{ffi,gfortran,objc}.a
+  rm -f $pkgdir/usr/lib/lib{ffi,gfortran,go{,begin},objc}.a
   rm -f $pkgdir/usr/lib/libgfortran.spec
   rm -f -r $pkgdir/usr/lib/gcc/$CHOST/${pkgver}/{finclude,include/objc}
   rm -f $pkgdir/usr/lib/gcc/$CHOST/${pkgver}/include/{ffi{,target}.h}
-  rm -f $pkgdir/usr/lib/gcc/$CHOST/${pkgver}/{cc1obj{,plus},f951}
+  rm -f $pkgdir/usr/lib/gcc/$CHOST/${pkgver}/{cc1obj{,plus},f951,go1}
   rm -f $pkgdir/usr/lib/gcc/$CHOST/${pkgver}/{libcaf_single,libgfortranbegin}.a
-  rm -f $pkgdir/usr/share/info/{gfortran,libgomp,libitm}.info
+  rm -f $pkgdir/usr/share/info/{gccgo,gfortran,libgomp,libitm}.info
+  rm -f -r $pkgdir/usr/lib/go
   rm -f $pkgdir/usr/share/locale/{de,fr}/LC_MESSAGES/libstdc++.mo
-  rm -f $pkgdir/usr/share/man/man1/gfortran.1
+  rm -f $pkgdir/usr/share/man/man1/{gccgo,gfortran}.1
   rm -f $pkgdir/usr/share/man/man3/ffi*
 
   # many packages expect this symlink
@@ -237,3 +243,19 @@ package_gcc-objc()
   install -Dm644 ${_basedir}/COPYING.RUNTIME \
     ${pkgdir}/usr/share/licenses/gcc-objc/RUNTIME.LIBRARY.EXCEPTION
 }
+
+package_gcc-go()
+{
+  pkgdesc="Go front-end for GCC"
+  depends=("gcc=$pkgver-$pkgrel")
+  install=gcc-go.install
+
+  cd ${srcdir}/gcc-build
+  make -j1 DESTDIR=$pkgdir install-target-libgo
+  make -j1 -C gcc DESTDIR=$pkgdir go.install-{common,man,info}
+  install -Dm755 gcc/go1 $pkgdir/usr/lib/gcc/$CHOST/$pkgver/go1
+
+  # Install Runtime Library Exception
+  install -Dm644 ${_basedir}/COPYING.RUNTIME \
+    ${pkgdir}/usr/share/licenses/gcc-go/RUNTIME.LIBRARY.EXCEPTION
+}
diff --git a/core/gcc/gcc-4.7.1-libgo-write.patch b/core/gcc/gcc-4.7.1-libgo-write.patch
new file mode 100644
index 000000000..340c313a6
--- /dev/null
+++ b/core/gcc/gcc-4.7.1-libgo-write.patch
@@ -0,0 +1,12 @@
+diff -Naur gcc-4.7.1-orig/libgo/runtime/print.c gcc-4.7.1/libgo/runtime/print.c
+--- gcc-4.7.1-orig/libgo/runtime/print.c	2012-05-26 04:22:14.000000000 +1000
++++ gcc-4.7.1/libgo/runtime/print.c	2012-06-16 15:06:28.553138502 +1000
+@@ -17,7 +17,8 @@
+	G* g = runtime_g();
+
+	if(g == nil || g->writebuf == nil) {
+-		runtime_write(2, v, n);
++		ssize_t bytesWritten = runtime_write(2, v, n);
++		(void)bytesWritten;
+		return;
+	}
diff --git a/core/gcc/gcc-go.install b/core/gcc/gcc-go.install
new file mode 100644
index 000000000..7dc50dee5
--- /dev/null
+++ b/core/gcc/gcc-go.install
@@ -0,0 +1,20 @@
+infodir=usr/share/info
+filelist=(gccgo.info)
+
+post_install() {
+  [ -x usr/bin/install-info ] || return 0
+  for file in ${filelist[@]}; do
+    install-info $infodir/$file.gz $infodir/dir 2> /dev/null
+  done
+}
+
+post_upgrade() {
+  post_install $1
+}
+
+pre_remove() {
+  [ -x usr/bin/install-info ] || return 0
+  for file in ${filelist[@]}; do
+    install-info --delete $infodir/$file.gz $infodir/dir 2> /dev/null
+  done
+}