gcc: sync patches with Arch; make it a bootstrap pkg and replace chroot-gcc.

- Removed --disable-bootstrap just to make sure that a proper compiler is generated.
- Adapted pkg to be part of the bootstrap process.

srcpkgs/gcc/patches/gcc-4.8-filename-output.patch

@@ -0,0 +1,19 @@
+http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57653
+
+--- gcc/c-family/c-opts.c       (revision 200330)
++++ gcc/c-family/c-opts.c       (working copy)
+@@ -1338,10 +1338,14 @@ c_finish_options (void)
+
+ /* Give CPP the next file given by -include, if any.  */
+ static void
+ push_command_line_include (void)
+ {
++  // This can happen if disabled by -imacros for example.
++  if (include_cursor > deferred_count)
++    return;
++
+   if (!done_preinclude)
+     {
+       done_preinclude = true;
+       if (flag_hosted && std_inc && !cpp_opts->preprocessed)
+        {

srcpkgs/gcc/patches/gcc-4.9-tree-ssa-threadedge.patch

@@ -0,0 +1,40 @@
+http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60902
+
+--- gcc/tree-ssa-threadedge.c	2014/04/23 17:53:56	209715
++++ gcc/tree-ssa-threadedge.c	2014/04/23 18:04:46	209716
+@@ -387,7 +387,34 @@
+           && (gimple_code (stmt) != GIMPLE_CALL
+               || gimple_call_lhs (stmt) == NULL_TREE
+               || TREE_CODE (gimple_call_lhs (stmt)) != SSA_NAME))
+-	continue;
++	{
++	  /* STMT might still have DEFS and we need to invalidate any known
++	     equivalences for them.
++
++	     Consider if STMT is a GIMPLE_ASM with one or more outputs that
++	     feeds a conditional inside a loop.  We might derive an equivalence
++	     due to the conditional.  */
++	  tree op;
++	  ssa_op_iter iter;
++
++	  if (backedge_seen)
++	    FOR_EACH_SSA_TREE_OPERAND (op, stmt, iter, SSA_OP_DEF)
++	      {
++		/* This call only invalidates equivalences created by
++		   PHI nodes.  This is by design to keep the cost of
++		   of invalidation reasonable.  */
++		invalidate_equivalences (op, stack, src_map, dst_map);
++
++		/* However, conditionals can imply values for real
++		   operands as well.  And those won't be recorded in the
++		   maps.  In fact, those equivalences may be recorded totally
++		   outside the threading code.  We can just create a new
++		   temporary NULL equivalence here.  */
++	        record_temporary_equivalence (op, NULL_TREE, stack);
++	      }
++
++	  continue;
++	}
+ 
+       /* The result of __builtin_object_size depends on all the arguments
+ 	 of a phi node. Temporarily using only one edge produces invalid

srcpkgs/gcc/template

@@ -2,7 +2,7 @@
 pkgname=gcc
 _majorver=4.9
 version=${_majorver}.0
-revision=5
+revision=6
 short_desc="The GNU C Compiler"
 maintainer="Juan RP <xtraeme@gmail.com>"
 homepage="http://gcc.gnu.org"
@@ -11,14 +11,18 @@ distfiles="http://ftp.gnu.org/pub/gnu/gcc/gcc-$version/gcc-$version.tar.bz2"
 checksum=b9b047a97bade9c1c89970bc8e211ff57b7b8998a1730a80a653d329f8ed1257
 
 lib32disabled=yes
-hostmakedepends="perl flex"
-makedepends="zlib-devel libmpc-devel>=1.0.1_2 ppl-devel>=1.0 cloog-devel isl-devel"
+bootstrap=yes
+
+if [ "$CHROOT_READY" ]; then
+	hostmakedepends="perl flex"
+fi
+makedepends="zlib-devel libmpc-devel>=1.0.1_2 cloog-devel>=0.18"
 
 depends="binutils"
 # mudflap is gone in 4.9
-replaces="libmudflap>=0 libmudflap-devel>=0"
+replaces="libmudflap>=0 libmudflap-devel>=0 chroot-gcc>=0"
 
-if [ -z "$CROSS_BUILD" ]; then
+if [ "$CHROOT_READY" -a -z "$CROSS_BUILD" ]; then
 	# Required by gcj
 	hostmakedepends+=" zip unzip"
 fi
@@ -63,19 +67,32 @@ do_configure() {
 		_args+=" --enable-java-gc=boehm --enable-fast-character"
 	fi
 
-	./configure --prefix=/usr --mandir=/usr/share/man \
+	if [ -z "$CHROOT_READY" ]; then
+		export LD_LIBRARY_PATH="${XBPS_MASTERDIR}/usr/lib"
+		_args+=" --with-gmp=${XBPS_MASTERDIR}/usr"
+		_args+=" --with-mpfr=${XBPS_MASTERDIR}/usr"
+		_args+=" --with-isl=${XBPS_MASTERDIR}/usr"
+		_args+=" --with-mpc=${XBPS_MASTERDIR}/usr"
+		_args+=" --with-cloog=${XBPS_MASTERDIR}/usr"
+		_langs="c,c++,lto"
+	fi
+
+	CONFIG_SHELL=/bin/bash \
+		./configure --prefix=/usr --mandir=/usr/share/man \
 		--infodir=/usr/share/info --libexecdir=/usr/lib \
-		--enable-clocale=gnu --disable-bootstrap --libdir=/usr/lib \
+		--enable-clocale=gnu --libdir=/usr/lib \
 		--enable-threads=posix --enable-__cxa_atexit --disable-multilib \
-		--disable-rpath --with-system-zlib --enable-shared --enable-lto \
+		--with-system-zlib --enable-shared --enable-lto \
 		--enable-linker-build-id --enable-gnu-unique-object \
 		--enable-checking=release --disable-libstdcxx-pch \
-		--with-ppl --enable-cloog-backend=isl --enable-libstdcxx-time \
-		--enable-tls --with-linker-hash-style=gnu \
+		--enable-cloog-backend=isl --with-linker-hash-style=gnu \
 		--enable-languages=${_langs} ${_args}
 }
 
 do_build() {
+	if [ -z "$CHROOT_READY" ]; then
+		export LD_LIBRARY_PATH="${XBPS_MASTERDIR}/usr/lib"
+	fi
 	make ${makejobs}
 }
 
@@ -143,8 +160,8 @@ do_install() {
 	fi
 }
 
-# Disabled packages in cross builds.
-if [ -z "$CROSS_BUILD" ]; then
+# Disabled packages in bootstrap/cross builds.
+if [ "$CHROOT_READY" -a -z "$CROSS_BUILD" ]; then
 
 gcc-gcj_package() {
 	lib32disabled=yes
@@ -224,25 +241,6 @@ gcc-objc_package() {
 	}
 }
 
-libcilkrts-devel_package() {
-	depends="libcilkrts>=${_majorver}"
-	short_desc+=" - Intel(R) Cilk(TM) Plus runtime library - development files"
-	pkg_install() {
-		vmove usr/lib/gcc/${_triplet}/${_majorver}/include/cilk
-		vmove "usr/lib/gcc/${_triplet}/${_majorver}/plugin/include/cilk*"
-		vmove usr/lib/libcilkrts.so
-		vmove usr/lib/libcilkrts.a
-		vmove usr/lib/libcilkrts.spec
-	}
-}
-
-libcilkrts_package() {
-	short_desc+=" - Intel(R) Cilk(TM) Plus runtime library"
-	pkg_install() {
-		vmove usr/lib/libcilkrts.so.*
-	}
-}
-
 libgcj-devel_package() {
 	short_desc+=" - Java library - development files"
 	pkg_install() {
@@ -325,22 +323,26 @@ libobjc_package() {
 	}
 }
 
-libquadmath-devel_package() {
-	depends="libquadmath>=${_majorver}"
-	short_desc+=" - quadmath library - development files"
+fi # !CHROOT_READY || !CROSS_BUILD
+
+if [ "$XBPS_TARGET_MACHINE" = "i686" -o "$XBPS_TARGET_MACHINE" = "x86_64" ]; then
+
+libcilkrts-devel_package() {
+	depends="libcilkrts>=${_majorver}"
+	short_desc+=" - Intel(R) Cilk(TM) Plus runtime library - development files"
 	pkg_install() {
-		vmove "usr/lib/gcc/${_triplet}/${_majorver}/include/quadmath*"
-		vmove "usr/lib/libquadmath*.a"
-		vmove usr/share/info/libquadmath.info
-		touch ${PKGDESTDIR}/usr/share/info/dir
+		vmove usr/lib/gcc/${_triplet}/${_majorver}/include/cilk
+		vmove "usr/lib/gcc/${_triplet}/${_majorver}/plugin/include/cilk*"
+		vmove usr/lib/libcilkrts.so
+		vmove usr/lib/libcilkrts.a
+		vmove usr/lib/libcilkrts.spec
 	}
 }
 
-libquadmath_package() {
-	short_desc+=" - quadmath library"
+libcilkrts_package() {
+	short_desc+=" - Intel(R) Cilk(TM) Plus runtime library"
 	pkg_install() {
-		vmove "usr/lib/libquadmath.so*"
-		vinstall ${wrksrc}/COPYING.RUNTIME 644 usr/share/licenses/$pkgname RUNTIME.LIBRARY.EXCEPTION
+		vmove usr/lib/libcilkrts.so.*
 	}
 }
 
@@ -360,7 +362,7 @@ libvtv_package() {
 	}
 }
 
-fi # !CROSS_BUILD
+fi # !x86
 
 libatomic-devel_package() {
 	depends="libatomic>=${_majorver}"
@@ -388,6 +390,7 @@ libgcc_package() {
 }
 
 libgomp-devel_package() {
+	replaces="chroot-gcc>=0"
 	depends="libgomp>=${_majorver}"
 	short_desc+=" - OpenMP v4.0 library - development files"
 	pkg_install() {
@@ -402,7 +405,7 @@ libgomp-devel_package() {
 
 libgomp_package() {
 	short_desc+=" - OpenMP v4.0 library"
-	replaces="gcc>=4.6.3<4.6.3_3"
+	replaces="gcc>=4.6.3<4.6.3_3 chroot-gcc>=0"
 	pkg_install() {
 		vmove "usr/lib/libgomp*.so.*"
 		vinstall ${wrksrc}/COPYING.RUNTIME 644 usr/share/licenses/$pkgname RUNTIME.LIBRARY.EXCEPTION
@@ -430,6 +433,25 @@ libitm_package() {
 }
 
 
+libquadmath-devel_package() {
+	depends="libquadmath>=${_majorver}"
+	short_desc+=" - quadmath library - development files"
+	pkg_install() {
+		vmove "usr/lib/gcc/${_triplet}/${_majorver}/include/quadmath*"
+		vmove "usr/lib/libquadmath*.a"
+		vmove usr/share/info/libquadmath.info
+		touch ${PKGDESTDIR}/usr/share/info/dir
+	}
+}
+
+libquadmath_package() {
+	short_desc+=" - quadmath library"
+	pkg_install() {
+		vmove "usr/lib/libquadmath.so*"
+		vinstall ${wrksrc}/COPYING.RUNTIME 644 usr/share/licenses/$pkgname RUNTIME.LIBRARY.EXCEPTION
+	}
+}
+
 libsanitizer-devel_package() {
 	depends="libsanitizer>=${_majorver}"
 	short_desc+=" - Sanitizer libraries - development files"
@@ -466,6 +488,7 @@ libssp_package() {
 }
 
 libstdc++-devel_package() {
+	replaces="chroot-gcc>=0"
 	depends="libstdc++>=${_majorver}"
 	short_desc+=" - Standard C++ Library - development files"
 	pkg_install() {
@@ -476,6 +499,7 @@ libstdc++-devel_package() {
 }
 
 libstdc++_package() {
+	replaces="chroot-gcc>=0"
 	short_desc+=" - Standard C++ Library"
 	pkg_install() {
 		vmove "usr/lib/libstdc++.so*"
@@ -487,6 +511,7 @@ libstdc++_package() {
 
 gcc-c++_package() {
 	lib32disabled=yes
+	replaces="chroot-gcc>=0"
 	depends="gcc>=${_majorver} libstdc++-devel>=${_majorver}"
 	short_desc+=" - C++ support"
 	pkg_install() {