--- cdrkit-1.1.11.orig/genisoimage/genisoimage.h	2008-05-25 23:00:55.000000000 +0200
+++ cdrkit-1.1.11/genisoimage/genisoimage.h	2024-02-12 14:32:15.046582134 +0100
@@ -376,7 +376,7 @@ extern int	use_fileversion;
 extern int	split_SL_component;
 extern int	split_SL_field;
 extern char	*trans_tbl;
-char		*outfile;
+extern char	*outfile;
 
 #define	JMAX		64	/* maximum Joliet file name length (spec) */
 #define	JLONGMAX	103	/* out of spec Joliet file name length */