--- lib/pdf/xpdf/GlobalParams.cc.orig	2012-04-08 12:26:34.000000000 -0500
+++ lib/pdf/xpdf/GlobalParams.cc	2017-10-21 00:03:04.000000000 -0500
@@ -922,9 +922,9 @@
     char* p = pos1>pos2?pos1:pos2;
     int pos = p ? p-cfgFileName : -1;
     GString*path = new GString(new GString(cfgFileName), 0, (pos < 0 ? strlen(cfgFileName): pos));
-    if(pos1>=0)
+    if (pos1 != NULL)
 	path->append('/');
-    else if(pos2>=0)
+    else if (pos2 != NULL)
 	path->append('\\');
     else
 #ifdef WIN32