diff --git a/xorriso/sfile.c b/xorriso/sfile.c
index c0dcedab..c81737a1 100644
--- a/xorriso/sfile.c
+++ b/xorriso/sfile.c
@@ -204,28 +204,6 @@ int Sfile_prepend_path(char *prefix, char path[SfileadrL], int flag)
  return(1);
 }
 
-int Sfile_being_group_member(struct stat *stbuf, int flag)
-{
- int i, suppl_groups;
- gid_t *suppl_glist;
-
- if (getegid()==stbuf->st_gid)
-   return(1);
- suppl_groups= getgroups(0, NULL);
- suppl_glist= (gid_t *) malloc((suppl_groups + 1) * sizeof(gid_t));
- if (suppl_glist==NULL)
-   return(-1);
- suppl_groups= getgroups(suppl_groups+1,suppl_glist);
- for (i= 0; i<suppl_groups; i++) {
-   if (suppl_glist[i]==stbuf->st_gid) {
-     free((char *) suppl_glist);
-     return(1);
-   }
- }
- free((char *) suppl_glist);
- return(0);
-}
-
 
 int Sfile_get_dev_fd_no(char *filename, int flag)
 {
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 41aeb387..312ad214 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2016.03.08.075457"
+#define Xorriso_timestamP "2016.03.09.205708"