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

Pointed out by many many ppl

src/backend/bootstrap/Makefile

@@ -4,7 +4,7 @@
 #    Makefile for the bootstrap module
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/backend/bootstrap/Makefile,v 1.6 1997/04/04 10:38:58 scrappy Exp $
+#    $Header: /cvsroot/pgsql/src/backend/bootstrap/Makefile,v 1.7 1997/04/15 17:24:07 scrappy Exp $
 #
 #
 # We must build bootparse.c and bootscanner.c with yacc and lex and sed,
@@ -25,7 +25,11 @@ INCLUDE_OPT= -I.. \
              -I../port/$(PORTNAME) \
              -I../../include
 
-CFLAGS+= $(INCLUDE_OPT)  -Wno-error
+CFLAGS+= $(INCLUDE_OPT)  
+
+ifeq ($CC), gcc)
+CFLAGS+= -Wno-error
+endif
 
 BOOTYACCS= bootstrap_tokens.h bootparse.c