Undefine ASMNAME/NAME/CNAME before defining them

to avoid redefinition warning when environment variables like CFLAGS are being used (fixes #818)

diff --git a/Makefile.system b/Makefile.system
index 76d755e..0235460 100644 (file)
--- a/Makefile.system
+++ b/Makefile.system
@@ -1154,6 +1154,7 @@ KERNELDIR = $(TOPDIR)/kernel/$(ARCH)
 
 include $(TOPDIR)/Makefile.$(ARCH)
 
+CCOMMON_OPT     += -UASMNAME -UASMFNAME -UNAME -UCNAME -UCHAR_NAME -UCHAR_CNAME
 CCOMMON_OPT    += -DASMNAME=$(FU)$(*F) -DASMFNAME=$(FU)$(*F)$(BU) -DNAME=$(*F)$(BU) -DCNAME=$(*F) -DCHAR_NAME=\"$(*F)$(BU)\" -DCHAR_CNAME=\"$(*F)\"
 
 ifeq ($(CORE), PPC440)