Add -Wno-error because of "unclean" flex output.

src/pl/plpgsql/src/Makefile

@@ -2,7 +2,7 @@
 #
 # Makefile for the plpgsql shared object
 #
-# $Header: /cvsroot/pgsql/src/pl/plpgsql/src/Makefile,v 1.16 2001/05/25 04:26:21 momjian Exp $
+# $Header: /cvsroot/pgsql/src/pl/plpgsql/src/Makefile,v 1.17 2001/08/21 16:25:21 petere Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -10,6 +10,10 @@ subdir = src/pl/plpgsql/src
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
+ifeq ($(GCC), yes)
+override CFLAGS+= -Wno-error
+endif
+
 # Shared library parameters
 NAME= plpgsql
 SO_MAJOR_VERSION= 1