$NetBSD$

Bash bashisms!

--- configure.orig	2015-02-27 02:10:23.000000000 +0000
+++ configure
@@ -6349,7 +6349,7 @@ fi
 if test "$LEX" = :; then
   LEX=${am_missing_run}flex
 fi
-if test "x$LEX" == "flex" ; then
+if test "x$LEX" = "flex" ; then
 	# Lex options - use -X
 	FLEX_LFLAGS="-X"
 	FLEX_CFLAGS="-D_POSIX_SOURCE=1"