gfs_rmdir - delete a directory
char *gfs_rmdir (char * gfarm_url);
gfs_rmdir() deletes a directory whose name is the string specified by
gfarm_url. The directory must be empty.
NULL The function terminated successfully.
Insufficient memory was available.
gfarm_url points outside your accessible address space.
Directory is not empty.
Directory does not exist.
A component of the path prefix is not a directory.
Others An error except the above occurred. The reason is shown by its