Reference:	https://github.com/swig/swig/issues/2887
		https://github.com/swig/swig/commit/b91ffa5631eb049293d3478744606148c9726521

--- src/gui/src/tclCmdInputWidget.h.orig	2023-12-27 07:04:34 UTC
+++ src/gui/src/tclCmdInputWidget.h
@@ -47,6 +47,12 @@
 
 #include "cmdInputWidget.h"
 #include "tclCmdHighlighter.h"
+
+#include <tcl.h>
+#ifndef TCL_SIZE_MAX
+typedef int Tcl_Size;
+#endif
+
 #include "tclSwig.h"  // generated header
 
 namespace gui {