$(RM) signature.tab.c signature.tab.h; \
fi
-Headers/cgrammar_tokens.h cgrammar.c: cgrammar.c.der cgrammar.y
+Headers/cgrammar_tokens.h cgrammar.c: cgrammar.c.der cgrammar.y bison.head bison.reset
@if test x$(BISON) = xno; then \
$(CP) cgrammar.c.der cgrammar.c; \
else \