This file also triggers the maybe-uninitialized warning/error.

--- src/lib/krb5/krb/x-deltat.y
+++ src/lib/krb5/krb/x-deltat.y
@@ -44,6 +44,7 @@
 #ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wuninitialized"
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 #endif
 
 #include <ctype.h>