$NetBSD$

--- configure.orig	2017-05-09 16:19:32.742834000 +0000
+++ configure
@@ -18340,7 +18340,7 @@ fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: enable inter-library dependencies: $enable_interlib_deps" >&5
 $as_echo "$as_me: enable inter-library dependencies: $enable_interlib_deps" >&6;}
-if test "${enable_interlib_deps}" == "yes"; then
+if test "${enable_interlib_deps}" = "yes"; then
     link_all_deplibs=yes
     link_all_deplibs_CXX=yes
 else