more fixes for tcl8.6 api changes

diff --git a/tclpkg/tclpathplan/tclpathplan.c b/tclpkg/tclpathplan/tclpathplan.c
index d55d3613ef040502c57fe82afea74b7d3ac7c628..7bb9f684508e9f04a14bebdd754afa0f32625f21 100644 (file)
--- a/tclpkg/tclpathplan/tclpathplan.c
+++ b/tclpkg/tclpathplan/tclpathplan.c
@@ -56,8 +56,10 @@
 
 #if ((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 6)) || ( TCL_MAJOR_VERSION > 8)
 #else
+#ifndef Tcl_GetStringResult
 #define Tcl_GetStringResult(interp) interp->result
 #endif
+#endif
 
 typedef Ppoint_t point;