Change instructions for 1.*.

src/Makefile.global

@@ -7,7 +7,7 @@
 #
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/Attic/Makefile.global,v 1.54 1996/11/04 05:14:16 momjian Exp $
+#    $Header: /cvsroot/pgsql/src/Attic/Makefile.global,v 1.55 1996/11/06 22:32:18 momjian Exp $
 #
 # NOTES
 #    This is seen by any Makefiles that include mk/postgres.mk. To
@@ -145,6 +145,7 @@ OIDNAMELEN = 36
 #HAVE_Cplusplus= true
 
 # Set COPT to -O for optimization, or -g for debuggable binaries
+# Many people prefer -O2, and -m486 if you are using a i486 or better
 COPT= -O
 
 # Commenting out CASSERT will make things go a LOT faster, but you will