diff -u -r1.157 Makefile
--- Makefile    19 May 2005 04:08:01 -0000      1.157
+++ Makefile    19 May 2005 14:03:27 -0000
@@ -357,15 +357,18 @@
        ar r $@ $(FLEXOBJS)
        ranlib $@

+ifeq ($(BISONVER_GE_1_85),false)
+.y.c:
+       @echo ================================================================================= ;\
+       echo NOTE: You may have trouble if you do not have bison-1.85 or higher installed! ;\
+       echo NOTE: You can pick up a copy at: http://ftp.gnu.org/ or its mirrors ;\
+       echo NOTE: You have: $(BISONVER) ;\
+       echo ================================================================================; \
+       bison -v -d --name-prefix=ast_yy $< -o $@
+else
 .y.c:
-       @if (($(BISONVER_GE_1_85) = false)); then \
-               echo ================================================================================= ;\
-               echo NOTE: You may have trouble if you do not have bison-1.85 or higher installed! ;\
-               echo NOTE: You can pick up a copy at: http://ftp.gnu.org/ or its mirrors ;\
-               echo NOTE: You have: $(BISONVER) ;\
-               echo ================================================================================; \
-       fi
        bison -v -d --name-prefix=ast_yy $< -o $@
+endif

 ast_expr.o:: ast_expr.c
        @echo ================================================================================= ;\