Index: gdb/xtensa-tdep.h
--- gdb/xtensa-tdep.h.orig
+++ gdb/xtensa-tdep.h
@@ -1,3 +1,6 @@
+
+#include "xtensa-config.h"
+
 /* Target-dependent code for the Xtensa port of GDB, the GNU debugger.
 
    Copyright (C) 2003-2019 Free Software Foundation, Inc.
