MIPS64 defaults to n32 ABI, this patch makes it
so that it defaults to N64 ABI

Upstream-Status: Inappropriate [OE config specific]

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Index: gcc-4_7-branch/gcc/config.gcc
===================================================================
--- gcc-4_7-branch.orig/gcc/config.gcc	2012-04-22 19:30:21.000000000 -0700
+++ gcc-4_7-branch/gcc/config.gcc	2012-04-22 21:09:57.783403173 -0700
@@ -1750,7 +1750,7 @@
 mips64*-*-linux* | mipsisa64*-*-linux*)
 	tm_file="dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h ${tm_file} mips/gnu-user.h mips/gnu-user64.h mips/linux64.h"
 	tmake_file="${tmake_file} mips/t-linux64"
-	tm_defines="${tm_defines} MIPS_ABI_DEFAULT=ABI_N32"
+	tm_defines="${tm_defines} MIPS_ABI_DEFAULT=ABI_64"
 	case ${target} in
 		mips64el-st-linux-gnu)
 			tm_file="${tm_file} mips/st.h"