https://bugs.gentoo.org/879321

From: ernsteiswuerfel <erhard_f@mailbox.org>

--- a/src/libostree/ostree-repo-checkout.c
+++ b/src/libostree/ostree-repo-checkout.c
@@ -37,6 +37,10 @@
 
 #define OVERLAYFS_WHITEOUT_PREFIX ".ostree-wh."
 
+#if !defined(ALLPERMS)
+# define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) /* 07777 */
+#endif
+
 /* Per-checkout call state/caching */
 typedef struct {
   GString *path_buf; /* buffer for real path if filtering enabled */