$NetBSD: patch-configure,v 1.2 2016/11/06 21:33:44 wiz Exp $

Fix unportable test(1) operator.
https://github.com/westes/flex/pull/120

--- configure.orig	2016-11-06 21:14:32.894863747 +0000
+++ configure
@@ -18200,7 +18200,7 @@ done
 
 # Check whether --enable-warnings was given.
 if test "${enable_warnings+set}" = set; then :
-  enableval=$enable_warnings; if test "x$GCC" == xyes; then :
+  enableval=$enable_warnings; if test "x$GCC" = xyes; then :
    : ${WARNINGFLAGS="-Wall -Wextra -Wmissing-prototypes -Wstrict-prototypes -Wnested-externs -Wold-style-definition -Wredundant-decls -Wconversion -Wno-unused-but-set-variable"}
 fi
 fi