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-rw-r--r--generic/tclInt.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/generic/tclInt.h b/generic/tclInt.h
index 49a299c..85981d9 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -26,6 +26,19 @@
#undef ACCEPT_NAN
/*
+ * In Tcl 8.7, stop supporting special hacks for legacy Itcl 3.
+ * Itcl 4 doesn't need them. Itcl 3 can be updated to not need them
+ * using the Tcl(Init|Reset)RewriteEnsemble() routines in all Tcl 8.6+
+ * releases. Perhaps Tcl 8.7 will add even better public interfaces
+ * supporting all the re-invocation mechanisms extensions like Itcl 3
+ * need. As an absolute last resort, folks who must make Itcl 3 work
+ * unchanged with Tcl 8.7 can remove this line to regain the migration
+ * support. Tcl 9 will no longer offer even that option.
+ */
+
+#define AVOID_HACKS_FOR_ITCL 1
+
+/*
* Common include files needed by most of the Tcl source files are included
* here, so that system-dependent personalizations for the include files only
* have to be made in once place. This results in a few extra includes, but