diff --git a/configs/z16f2800100zcog/ostest/Make.defs b/configs/z16f2800100zcog/ostest/Make.defs
index 758416249e..542a1f7212 100644
--- a/configs/z16f2800100zcog/ostest/Make.defs
+++ b/configs/z16f2800100zcog/ostest/Make.defs
@@ -125,12 +125,12 @@ EXEEXT			= .hex
 # object files into an archive
 
 define COMPILE
-	@echo "CC: $1"
-	@$(CC) $(CFLAGS) $1 1>/dev/null
+	@#echo "CC: $1"
+	@$(CC) $(CFLAGS) $1
 endef
 
 define ASSEMBLE
-	@echo "AS: $1"
+	@#echo "AS: $1"
 	@$(AS) -c $(AFLAGS) $1
 endef
 
diff --git a/configs/z16f2800100zcog/src/Makefile b/configs/z16f2800100zcog/src/Makefile
index 85997d0bda..fa8b5ac2ed 100644
--- a/configs/z16f2800100zcog/src/Makefile
+++ b/configs/z16f2800100zcog/src/Makefile
@@ -52,11 +52,16 @@ OBJS		= $(AOBJS) $(COBJS)
 
 all: libboard$(LIBEXT)
 
-$(AOBJS): %$(OBJEXT): %.S
+$(ASRCS) $(HEAD_ASRC): %$(ASMEXT): %.S
+	@$(CPP) $(CPPFLAGS) $< -o $@.tmp
+	@cat $@.tmp | sed -e "s/^#/;/g" > $@
+	@rm $@.tmp
+
+$(AOBJS): %$(OBJEXT): %$(ASMEXT)
 	$(call ASSEMBLE, $<, $@)
 
 $(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
+	$(call COMPILE, `cygpath -w $<`, $@)
 
 libboard$(LIBEXT): $(OBJS)
 	@( for obj in $(OBJS) ; do \