VirtualMIPS simulator: create a platform for generic M4K core.

src/cmd/smallc/Makefile

@@ -2,7 +2,7 @@ TOPSRC          = $(shell cd ../../..; pwd)
 include $(TOPSRC)/target.mk
 #include $(TOPSRC)/cross.mk
 
-CFLAGS          = -Os
+CFLAGS          += -Os
 LIBS		= -lc
 
 ARCH            = mips

src/libc/mips/Makefile

@@ -17,7 +17,7 @@ mips.a:		${ALL}
 		rm -rf tmp
 
 ${ALL}:	FRC
-	cd $@; ${MAKE} ${MFLAGS} DEFS=${DEFS}
+	cd $@; ${MAKE} ${MFLAGS} DEFS="${DEFS}"
 
 FRC:
 
@@ -32,4 +32,4 @@ clean:
 
 depend:
 		for i in ${ALL}; do \
-			(cd $$i; ${MAKE} ${MFLAGS} DEFS=${DEFS} depend); done
+			(cd $$i; ${MAKE} ${MFLAGS} DEFS="${DEFS}" depend); done