diff -x config.log -x config.status -ru tmp/gnuchess-5.07/src/common.h work/gnuchess-5.07/src/common.h
--- tmp/gnuchess-5.07/src/common.h	2003-06-30 12:28:38.000000000 +0100
+++ work/gnuchess-5.07/src/common.h	2008-01-27 11:15:07.000000000 +0000
@@ -715,8 +715,6 @@
 void DBTest (void);
 
 /* Input thread and thread function */
-#include <pthread.h>
-extern pthread_t input_thread;
 void *input_func(void *);
 
 /*