gcc/collect2: Added --sysroot support into collect2 in gcc.

[YOCTO #815] Added --sysroot into COLLECT_GCC_OPTIONS to allow the
collect2 support user specifed sysroot.

(From OE-Core rev: 868f8d3dd04e3c6dbbce154742cf877fda460a3e)

Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.5.1/COLLECT_GCC_OPTIONS.patch b/meta/recipes-devtools/gcc/gcc-4.5.1/COLLECT_GCC_OPTIONS.patch
new file mode 100644
index 0000000000..3e3dec7d39
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.5.1/COLLECT_GCC_OPTIONS.patch
@@ -0,0 +1,22 @@
+#This patck added --sysroot into COLLECT_GCC_OPTIONS which is used to
+#invoke collect2.
+
+diff -ruN gcc-4.5.1.orig/gcc/gcc.c gcc-4.5.1/gcc/gcc.c
+--- gcc-4.5.1.orig/gcc/gcc.c    2011-03-09 16:43:39.127752586 +0800
++++ gcc-4.5.1/gcc/gcc.c 2011-03-09 16:47:15.894929459 +0800
+@@ -4667,6 +4667,15 @@
+                sizeof ("COLLECT_GCC_OPTIONS=") - 1);
+ 
+   first_time = TRUE;
++#ifdef HAVE_LD_SYSROOT
++  if (target_system_root_changed && target_system_root)
++    {
++      obstack_grow (&collect_obstack, "'--sysroot=", sizeof("'--sysroot=")-1);
++      obstack_grow (&collect_obstack, target_system_root,strlen(target_system_root));
++      obstack_grow (&collect_obstack, "'", 1);
++      first_time = FALSE;
++    }
++#endif
+   for (i = 0; (int) i < n_switches; i++)
+     {
+       const char *const *args;