Index: head/graphics/opendx/files/patch-src_uipp_dxuilib_EditorWindow.C
===================================================================
--- head/graphics/opendx/files/patch-src_uipp_dxuilib_EditorWindow.C	(revision 473762)
+++ head/graphics/opendx/files/patch-src_uipp_dxuilib_EditorWindow.C	(revision 473763)
@@ -1,11 +1,11 @@
 --- src/uipp/dxuilib/EditorWindow.C.orig	2018-07-02 02:13:46 UTC
 +++ src/uipp/dxuilib/EditorWindow.C
 @@ -5997,7 +5997,7 @@ char msg[128];
      //
      const char *tmpdir = theDXApplication->getTmpDirectory();
      int tmpdirlen = STRLEN(tmpdir);
 -    if (!tmpdirlen) return FALSE;
-+    if (!tmpdirlen) return (char*) FALSE;
++    if (!tmpdirlen) return NULL;
      if (tmpdir[tmpdirlen-1] == '/') {
  	sprintf(netfilename, "%sdx%d.net", tmpdir, getpid());
  	sprintf(cfgfilename, "%sdx%d.cfg", tmpdir, getpid());