Index: libcfa/prelude/defines.hfa.in
===================================================================
--- libcfa/prelude/defines.hfa.in	(revision 5751a56c72a73cfd724a07d14af375206ec3dcc6)
+++ libcfa/prelude/defines.hfa.in	(revision 22ddadea18425bfa5c6025a0d5f3cdca5dbb5e49)
@@ -50,4 +50,11 @@
 #undef CFA_HAVE_IORING_OP_REMOVE_BUFFER
 
+#undef CFA_HAVE_IOSQE_FIXED_FILE
+#undef CFA_HAVE_IOSQE_IO_DRAIN
+#undef CFA_HAVE_IOSQE_ASYNC
+#undef CFA_HAVE_IOSQE_IO_LINK
+#undef CFA_HAVE_IOSQE_IO_HARDLINK
+#undef CFA_HAVE_SPLICE_F_FD_IN_FIXED
+
 #undef HAVE_PREADV2
 #undef HAVE_PWRITEV2