invoke.texi (Precompiled Headers): Document some more options which are known to be safe.

	* doc/invoke.texi (Precompiled Headers): Document some more options
	which are known to be safe.

From-SVN: r103166

gcc/ChangeLog

+2005-08-16  Geoffrey Keating  <geoffk@apple.com>
+
+	* doc/invoke.texi (Precompiled Headers): Document some more options
+	which are known to be safe.
+
 2005-08-16  James E Wilson  <wilson@specifix.com>
 
 	PR tree-optimization/21105

gcc/doc/invoke.texi

@@ -13185,9 +13185,9 @@ which options are safe to change and which are not; the safest choice
 is to use exactly the same options when generating and using the
 precompiled header.  The following are known to be safe:
 
-@gccoptlist{-fpreprocessed
+@gccoptlist{-fmessage-length= -fpreprocessed
 -fsched-interblock -fsched-spec -fsched-spec-load -fsched-spec-load-dangerous
--fsched-verbose=<number> -fschedule-insns
+-fsched-verbose=<number> -fschedule-insns -fvisibility=
 -pedantic-errors}
 
 @end itemize