Function svn_fs_make_dir 

pub unsafe extern "C" fn svn_fs_make_dir(
    root: *mut svn_fs_root_t,
    path: *const c_char,
    pool: *mut apr_pool_t,
) -> *mut svn_error_t

Create a new directory named @a path in @a root. The new directory has no entries, and no properties. @a root must be the root of a transaction, not a revision.

Do any necessary temporary allocation in @a pool.