gcc-target: Use --with-arch=native for target gcc

This should help gcc detect and use target ISA on x86_64 machines when
-march is not used on cmdline

[YOCTO #139]

(From OE-Core rev: f9e410521c92e2458ba7e2ca63d28434618b9f25)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-target.inc b/meta/recipes-devtools/gcc/gcc-target.inc
index 204f9475fc..34c1b2263b 100644
--- a/meta/recipes-devtools/gcc/gcc-target.inc
+++ b/meta/recipes-devtools/gcc/gcc-target.inc
@@ -19,6 +19,7 @@ EXTRA_OECONF_append_armv6 = " --with-arch=armv6${ARMFPARCHEXT}"
 EXTRA_OECONF_append_armv7a = " --with-arch=armv7-a${ARMFPARCHEXT}"
 EXTRA_OECONF_append_armv7ve = " --with-arch=armv7ve${ARMFPARCHEXT}"
 EXTRA_OECONF_append_arc = " --with-cpu=${TUNE_PKGARCH}"
+EXTRA_OECONF_append_x86-64 = " --with-arch=native"
 
 # libcc1 requres gcc_cv_objdump when cross build, but gcc_cv_objdump is
 # set in subdir gcc, so subdir libcc1 can't use it, export it here to