+EXTRA_DIST = malloc.c realloc.c stdbool_.h strnlen.c
+MOSTLYCLEANFILES = stdbool.h stdbool.h-t
+
+# We need the following in order to create an <stdbool.h> when the system
+# doesn't have one that works.
+$(libbison_a_OBJECTS): $(STDBOOL_H)
+stdbool.h: stdbool_.h
+ sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' <$(srcdir)/stdbool_.h >$@-t
+ mv $@-t $@