+# NOTE: $(SCRIPT_OBJS) is not in MOSTLY_CLEAN_FILES, because in some
+# places in the tree it appears that we have source files in $(SCRIPT_OBJS).
+# Specifically glafp-utils/mkdependC/mkdependC.prl and others in ghc/driver and
+# possibly others elsewhere in the tree. ToDo: fix this properly.
+MOSTLY_CLEAN_FILES += $(HS_OBJS) $(C_OBJS) $(HSC_C_OBJS) $(GC_C_OBJS)