c3-lang/libffi

diff --git a/testsuite/lib/libffi.exp b/testsuite/lib/libffi.exp
index 28f793a..b3f684c 100644
--- a/testsuite/lib/libffi.exp
+++ b/testsuite/lib/libffi.exp
@@ -1,4 +1,4 @@
-#   Copyright (C) 2003, 2005, 2008, 2009, 2010, 2011, 2014 Free Software Foundation, Inc.
+#   Copyright (C) 2003, 2005, 2008, 2009, 2010, 2011, 2014, 2019 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -480,11 +480,11 @@ proc run-many-tests { testcases extra_flags } {
     switch $compiler_vendor {
       "clang" {
 	set common "-W -Wall"
-	set optimizations { "-O0" "-O2" "-Os" }
+	set optimizations { "-O0" "-O2" }
       }
       "gnu" {
         set common "-W -Wall -Wno-psabi"
-        set optimizations { "-O0" "-O2" "-Os" "-O2 -fomit-frame-pointer" }
+        set optimizations { "-O0" "-O2" "-O2 -fomit-frame-pointer" }
       }
       default {
         # Assume we are using the vendor compiler.