diff -uw tcl8.4.11/unix/tclUnixPort.h.org tcl8.4.11/unix/tclUnixPort.h
--- tcl8.4.11/unix/tclUnixPort.h.org	2005-11-30 21:17:30.000000000 +0100
+++ tcl8.4.11/unix/tclUnixPort.h	2005-11-30 21:17:40.000000000 +0100
@@ -548,7 +548,7 @@
  * functions.
  */
 
-#define TclpExit		exit
+#define TclpExit		_exit
 
 /*
  * Platform specific mutex definition used by memory allocators.