From 35622f9929d6c59f9a43a498ab6697287b2cd4a2 Mon Sep 17 00:00:00 2001
From: David Levine <levinedl@acm.org>
Date: Wed, 23 Oct 2013 10:16:31 -0500
Subject: [PATCH] More probing: added flex -V.

---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index 9176d3c4..7bb2024d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -562,6 +562,7 @@ dnl ----------------
 dnl Use LFLAGS make variable setting to work around bug in flex
 dnl 2.5.36 and .37 that causes signed/unsigned mismatch,
 dnl http://sourceforge.net/p/flex/bugs/140/
+flex -V
 AS_IF([test "$LEX" = flex],
       [AS_CASE([`$LEX -V`],
                [flex\ 2.5.3@<:@67@:>@], [[LFLAGS=\
-- 
2.56.0