https://github.com/krb5/krb5/commit/c3958cec43b598b25484b9805224c56f25f7a755
https://bugs.gentoo.org/854561

From: Greg Hudson <ghudson@mit.edu>
Date: Tue, 29 Mar 2022 16:27:55 -0400
Subject: [PATCH] Include time.h in kdb.h

kdb.h uses time_t, and therefore must include <time.h> to ensure its
definition.  Noticed when building t_sort_key_data.c on macOS.
--- a/include/kdb.h
+++ b/include/kdb.h
@@ -65,6 +65,7 @@
 #ifndef KRB5_KDB5__
 #define KRB5_KDB5__
 
+#include <time.h>
 #include <krb5.h>
 
 /* This version will be incremented when incompatible changes are made to the