File fortify_source.patch of Package arts

--- flow/gsl/gslloader-oggvorbis.c
+++ flow/gsl/gslloader-oggvorbis.c
@@ -24,7 +24,7 @@
 
 #include <vorbis/vorbisfile.h>
 #include <unistd.h>
-
+#include <string.h>
 
 /* --- structures --- */
 typedef struct