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-rw-r--r--cpu/ppc4xx/config.mk2
1 files changed, 1 insertions, 1 deletions
diff --git a/cpu/ppc4xx/config.mk b/cpu/ppc4xx/config.mk
index 311c97b73..baa97a412 100644
--- a/cpu/ppc4xx/config.mk
+++ b/cpu/ppc4xx/config.mk
@@ -25,7 +25,7 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -mstring -msoft-float
cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
-is440=$(shell grep CONFIG_440 $(TOPDIR)/include/$(cfg))
+is440:=$(shell grep CONFIG_440 $(TOPDIR)/include/$(cfg))
ifneq (,$(findstring CONFIG_440,$(is440)))
PLATFORM_CPPFLAGS += -Wa,-m440 -mcpu=440