commit 69de79cfa71749de8e0e4dcab17b4ab36208e5fc
Author: Tomas Korbar <tkorbar@redhat.com>
Date:   Fri Jul 16 09:32:38 2021 +0200

    Fix header problem

diff --git a/lib/libc-config.h b/lib/libc-config.h
index f14013f..884272b 100644
--- a/lib/libc-config.h
+++ b/lib/libc-config.h
@@ -71,11 +71,6 @@
 # endif
 #endif
 
-#ifndef __attribute_nonnull__
-/* <sys/cdefs.h> either does not exist, or is too old for Gnulib.
-   Prepare to include <cdefs.h>, which is Gnulib's version of a
-   more-recent glibc <sys/cdefs.h>.  */
-
 /* Define _FEATURES_H so that <cdefs.h> does not include <features.h>.  */
 # ifndef _FEATURES_H
 #  define _FEATURES_H 1
@@ -171,7 +166,6 @@
 #  endif
 # endif
 
-#endif /* defined __glibc_likely */
 
 
 /* A substitute for glibc <libc-symbols.h>, good enough for Gnulib.  */