New gcc sources for toolchain checked in on 06/03/2010.

Changes:
gcc/ira-conflicts.c
  Backport a gcc-4.4.3 patch to fix a ra bug http://b/issue?id=2667593.
  http://gcc.gnu.org/ml/gcc-cvs/2009-05/msg00055.html
  Owner: jingyu
  Status: In upstream gcc-4.4.3 r147081.

gcc/collect2.c
gcc/common.opt
gcc/configure.ac
gcc/configure
gcc/doc/invoke.texi
gcc/exec-tool.in
gcc/gcc.c
gcc/opts.c
  Add -fuse-ld= option to select linker.  This CL merges the gcc part of
  this up-stream patch.
  http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00402.html
  Owner: dougkwan
  Status: binutils part in upstream, gcc part pending approval.

Change-Id: Ibfa819535ebdb7499aae8981687c2dc51295a25a

1 files changed, 14 insertions, 0 deletions

diff --git a/gcc-4.4.0/gcc/configure.ac b/gcc-4.4.0/gcc/configure.ac
index a2204be06..79926d1bb 100644
--- a/gcc-4.4.0/gcc/configure.ac
+++ b/gcc-4.4.0/gcc/configure.ac
@@ -1969,6 +1969,17 @@ else
         AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
 fi])
 
+gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold
+
+AS_VAR_SET_IF(gcc_cv_gold,, [
+if test -f $gcc_cv_ld_gold_srcdir/configure.ac \
+     && test -f ../gold/Makefile \
+     && test x$build = x$host; then
+	gcc_cv_gold=../gold/ld-new$build_exeext
+else
+        gcc_cv_gold=''
+fi])
+
 # Check to see if we are using gold instead of ld
 AC_MSG_CHECKING(whether we are using gold)
 ld_is_gold=no
@@ -1987,6 +1998,9 @@ case "$ORIGINAL_LD_FOR_TARGET" in
   *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;;
 esac 
 
+ORIGINAL_GOLD_FOR_TARGET=$gcc_cv_gold
+AC_SUBST(ORIGINAL_GOLD_FOR_TARGET)
+
 AC_MSG_CHECKING(what linker to use)
 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
 	# Single tree build which includes ld.  We want to prefer it