--- ac/arch/um/kernel/trap_kern.c	Sun Apr 22 12:59:17 2001
+++ um/arch/um/kernel/trap_kern.c	Sat Apr 28 17:52:22 2001
@@ -221,6 +221,11 @@
 	printk("debug requested when CONFIG_PT_PROXY is off\n");
 }
 
+int attach_debugger(int idle_pid, int pid)
+{
+	printk("attach_debugger called when CONFIG_PT_PROXY is off\n");
+	return(-1);
+}
 #endif
 /*
  * Overrides for Emacs so that we follow Linus's tabbing style.