--- glibc-2.13/sysdeps/i386/i686/Makefile
+++ glibc-2.13-1/sysdeps/i386/i686/Makefile
@@ -9,19 +9,3 @@ stack-align-test-flags += -msse
 ifeq ($(subdir),string)
 sysdep_routines += cacheinfo
 endif
-
-ifeq (yes,$(config-asflags-i686))
-CFLAGS-.o += -Wa,-mtune=i686
-CFLAGS-.os += -Wa,-mtune=i686
-CFLAGS-.op += -Wa,-mtune=i686
-CFLAGS-.og += -Wa,-mtune=i686
-CFLAGS-.ob += -Wa,-mtune=i686
-CFLAGS-.oS += -Wa,-mtune=i686
-
-ASFLAGS-.o += -Wa,-mtune=i686
-ASFLAGS-.os += -Wa,-mtune=i686
-ASFLAGS-.op += -Wa,-mtune=i686
-ASFLAGS-.og += -Wa,-mtune=i686
-ASFLAGS-.ob += -Wa,-mtune=i686
-ASFLAGS-.oS += -Wa,-mtune=i686
-endif