$NetBSD: patch-configure,v 1.1 2016/04/17 04:09:44 wen Exp $
Fix usage of conditionals in configure
--- configure.orig	2015-11-28 07:01:04.000000000 +0000
+++ configure
@@ -2953,8 +2953,8 @@ fi
 
 ## also use pkg-config to check for NLopt
 ##
-if test x"${nlopt_libs}" == x""; then
-    if test x"${PKGCONFIG}" == x"yes"; then
+if test x"${nlopt_libs}" = x""; then
+    if test x"${PKGCONFIG}" = x"yes"; then
         ## check via pkg-config for hiredis
         if pkg-config --exists nlopt; then
             ## obtain cflags and obtain libs