File plplot-tcl-import-usage.patch of Package plplot

Index: plplot-5.9.9/bindings/tk/tkMain.c
===================================================================
--- plplot-5.9.9.orig/bindings/tk/tkMain.c
+++ plplot-5.9.9/bindings/tk/tkMain.c
@@ -87,7 +87,7 @@ EXTERN int Itk_Init _ANSI_ARGS_( ( Tcl_I
 
 #ifndef Tcl_Import_TCL_DECLARED
 EXTERN int Tcl_Import _ANSI_ARGS_( ( Tcl_Interp * interp,
-                                     Tcl_Namespace * nsPtr, char * pattern,
+                                     Tcl_Namespace * nsPtr, CONST char * pattern,
                                      int allowOverwrite ) );
 #endif