buildsys: try to merge all constants

Saves a couple of bytes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/Rules.mak b/Rules.mak
index 71ceb9022..aa2e3a74c 100644
--- a/Rules.mak
+++ b/Rules.mak
@@ -296,6 +296,8 @@ CPU_CFLAGS-y := -funsigned-char -fno-builtin
 
 $(eval $(call check-gcc-var,-fno-asm))
 CPU_CFLAGS-y += $(CFLAG_-fno-asm)
+$(eval $(call check-gcc-var,-fmerge-all-constants))
+CPU_CFLAGS-y += $(CFLAG_-fmerge-all-constants)
 
 LDADD_LIBFLOAT=
 ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y)