From d8831eff15e6ba953b49287a3b37ab784f79c505 Mon Sep 17 00:00:00 2001
From: Georg Baum <baum@lyx.org>
Date: Thu, 5 May 2016 20:28:28 +0200
Subject: [PATCH] Show help for WINDRES in configure

This is the official way to declare environment variables
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 0cc706c60e..7b8b742a63 100644
--- a/configure.ac
+++ b/configure.ac
@@ -118,7 +118,7 @@ AC_SUBST(LIBPSAPI)
 AC_CHECK_LIB(gdi32, main)
 AC_CHECK_LIB(ole32, main)
 test x"$WINDRES" = x && WINDRES=windres
-AC_SUBST(WINDRES)
+AC_ARG_VAR(WINDRES, [windows resource compiler command])
 
 LYX_USE_INCLUDED_BOOST
 LYX_USE_INCLUDED_MYTHES