--- ghostscript-9.04/Resource/Init/gs_init.ps.runlibfileifexists	2011-09-14 03:58:19.000000000 +0200
+++ ghostscript-9.04/Resource/Init/gs_init.ps	2011-09-14 03:58:30.000000000 +0200
@@ -674,6 +674,14 @@
            { /undefinedfilename signalerror }
           ifelse
         } bind def
+/runlibfileifexists
+	{		% We don't want to bind 'run' into this procedure,
+			% since run may get redefined.
+ 	  findlibfile
+  	   { exch pop /run .systemvar exec }
+  	   { pop }
+   	  ifelse
+  	} bind def
 /selectdevice
         { finddevice setdevice .setdefaultscreen } bind def
 /signalerror		% <object> <errorname> signalerror -
@@ -842,6 +850,7 @@
         } bind def
 % Temporarily substitute it for the real runlibfile.
 /.runlibfile /runlibfile load def
+/.runlibfileifexists /runlibfileifexists load def
 /runlibfile /runlibfile0 load def
 
 % Create the error handling machinery.