$NetBSD: patch-configure,v 1.6 2018/01/13 18:22:42 adam Exp $

Portability fixes.

--- configure.orig	2017-12-13 13:37:25.000000000 +0000
+++ configure
@@ -19007,7 +19007,7 @@ if test "${enable_address_sanitizer+set}
 fi
 
 
-if test "x${ZMQ_ASAN}" == "xyes"; then
+if test "x${ZMQ_ASAN}" = "xyes"; then
     CFLAGS="${CFLAGS} -fsanitize=address"
     CXXFLAGS="${CXXFLAGS} -fsanitize=address"
 
@@ -20448,12 +20448,12 @@ if test "${with_poller+set}" = set; then
 fi
 
 
-    if test "x$with_poller" == "x"; then
+    if test "x$with_poller" = "x"; then
         pollers=auto
     else
         pollers=$with_poller
     fi
-    if test "$pollers" == "auto"; then
+    if test "$pollers" = "auto"; then
         # We search for pollers in this order
         pollers="kqueue epoll devpoll pollset poll select"
     fi
