Fix up the -Wno-error problem for non-gcc compilers

Pointed out by many many ppl

src/backend/parser/Makefile

@@ -4,7 +4,7 @@
 #    Makefile for parser
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/backend/parser/Makefile,v 1.6 1997/04/04 10:40:11 scrappy Exp $
+#    $Header: /cvsroot/pgsql/src/backend/parser/Makefile,v 1.7 1997/04/15 17:24:26 scrappy Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -15,7 +15,12 @@ INCLUDE_OPT= -I.. \
              -I../port/$(PORTNAME) \
              -I../../include
 
-CFLAGS+= $(INCLUDE_OPT) -Wno-error
+CFLAGS+= $(INCLUDE_OPT)
+
+ifeq ($CC), gcc)
+CFLAGS+= -Wno-error
+endif
+
 
 OBJS= analyze.o catalog_utils.o dbcommands.o gram.o \
       keywords.o parser.o parse_query.o scan.o scansup.o sysfunc.o