diff -uNr glibc-2.17.orig/elf/Makefile glibc-2.17/elf/Makefile
--- glibc-2.17.orig/elf/Makefile	2012-12-25 03:02:13.000000000 +0000
+++ glibc-2.17/elf/Makefile	2013-01-08 16:11:34.000000000 +0000
@@ -427,7 +427,7 @@
 		    -D'SLIBDIR="$(slibdir)"' -DIS_IN_ldconfig=1
 CFLAGS-dl-cache.c = $(SYSCONF-FLAGS)
 CFLAGS-cache.c = $(SYSCONF-FLAGS)
-CFLAGS-rtld.c = $(SYSCONF-FLAGS)
+CFLAGS-rtld.c += $(SYSCONF-FLAGS)
 
 CPPFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
 		     -DNOT_IN_libc=1 -DIS_IN_rtld=1 -DIN_LIB=rtld)