diff -Naur gnuchess-5.07.orig/src/common.h gnuchess-5.07/src/common.h
--- gnuchess-5.07.orig/src/common.h	2003-06-30 15:28:38 +0400
+++ gnuchess-5.07/src/common.h	2006-05-16 14:42:42 +0400
@@ -716,8 +716,10 @@
 
 /* Input thread and thread function */
 #include <pthread.h>
+#if 0
 extern pthread_t input_thread;
 void *input_func(void *);
+#endif
 
 /*
  * Status variable used by the input thread to signal