nds32: fix building failed if using older version gcc.
It will be built failed because these options are not supported by older
version gcc.
Signed-off-by: Greentime Hu <greentime@andestech.com>
diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile
index 54b4de9..91f933d 100644
--- a/arch/nds32/Makefile
+++ b/arch/nds32/Makefile
@@ -5,7 +5,8 @@
comma = ,
-KBUILD_CFLAGS +=-mno-sched-prolog-epilog -mcmodel=large
+KBUILD_CFLAGS += $(call cc-option, -mno-sched-prolog-epilog)
+KBUILD_CFLAGS += -mcmodel=large
KBUILD_CFLAGS +=$(arch-y) $(tune-y)
KBUILD_AFLAGS +=$(arch-y) $(tune-y)
@@ -33,9 +34,9 @@
endif
ifdef CONFIG_CPU_LITTLE_ENDIAN
-KBUILD_CFLAGS += -EL
+KBUILD_CFLAGS += $(call cc-option, -EL)
else
-KBUILD_CFLAGS += -EB
+KBUILD_CFLAGS += $(call cc-option, -EB)
endif
boot := arch/nds32/boot
