Index: unix/tclUnixPort.h
===================================================================
RCS file: /cvsroot/tcl/tcl/unix/tclUnixPort.h,v
retrieving revision 1.27
diff -u -r1.27 tclUnixPort.h
--- unix/tclUnixPort.h	20 Feb 2003 00:34:09 -0000	1.27
+++ unix/tclUnixPort.h	13 May 2003 02:19:50 -0000
@@ -571,6 +571,13 @@
 #define inet_ntoa(x)	TclpInetNtoa(x)
 #undef TclOSreaddir
 #define TclOSreaddir(x) TclpReaddir(x)
+#ifdef MAC_OSX_TCL
+/* 
+ * On Mac OS X, realpath is currently not
+ * thread safe, c.f. SF bug # 711232.
+ */
+#define NO_REALPATH
+#endif
 #else
 typedef int TclpMutex;
 #define	TclpMutexInit(a)
