Index: Modules/posixmodule.c
===================================================================
--- Modules/posixmodule.c	(revision 63363)
+++ Modules/posixmodule.c	(working copy)
@@ -7212,6 +7212,11 @@
 #endif
 
 /* GNU extensions. */
+#ifdef O_ASYNC
+        /* Send a SIGIO signal whenever input or output 
+           becomes available on file descriptor */
+        if (ins(d, "O_ASYNC", (long)O_ASYNC)) return -1;
+#endif
 #ifdef O_DIRECT
         /* Direct disk access. */
         if (ins(d, "O_DIRECT", (long)O_DIRECT)) return -1;
Index: Modules/fcntlmodule.c
===================================================================
--- Modules/fcntlmodule.c	(revision 63363)
+++ Modules/fcntlmodule.c	(working copy)
@@ -510,6 +510,9 @@
         if (ins(d, "F_SETLKW64", (long)F_SETLKW64)) return -1;
 #endif
 /* GNU extensions, as of glibc 2.2.4. */
+#ifdef FASYNC
+        if (ins(d, "FASYNC", (long)FASYNC)) return -1;
+#endif
 #ifdef F_SETLEASE
         if (ins(d, "F_SETLEASE", (long)F_SETLEASE)) return -1;
 #endif