deal with msvc warnings
diff --git a/.travis/compile b/.travis/compile
index 99e5052..655932a 100755
--- a/.travis/compile
+++ b/.travis/compile
@@ -1,7 +1,7 @@
#! /bin/sh
# Wrapper for compilers which do not understand '-c -o'.
-scriptversion=2018-03-07.03; # UTC
+scriptversion=2018-03-27.18; # UTC
# Copyright (C) 1999-2018 Free Software Foundation, Inc.
# Written by Tom Tromey <tromey@cygnus.com>.
@@ -187,6 +187,9 @@ func_cl_wrapper ()
-static)
shared=false
;;
+ -warn)
+ eat=1
+ ;;
-Wl,*)
arg=${1#-Wl,}
save_ifs="$IFS"; IFS=','