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+2004-12-15 Miguel Sofer <msofer@users.sf.net>
+
+ * generic/tclBasic.c:
+ * generic/tclExecute.c:
+ * generic/tclInt.decls:
+ * generic/tclIntDecls.h:
+ * generic/tclNamesp.c:
+ * generic/tclProc.c:
+ * generic/tclStubInit.c:
+ * generic/tclTest.c: Added two new functions to allocate memory
+ from the execution stack (TclStackAlloc, TclStackFree). Added
+ functions TclPushStackFrame and TclPopStackFrame that do the work
+ of Tcl_PushCallFrame and Tcl_PopCallFrame, but using frames
+ allocated in the execution stack - i.e., heap instead of
+ C-stack. The core uses these two new functions exclusively; the
+ old ones remain for backwards compat, as at least two popular
+ extensions (itcl, xotcl) are known to use them.
+
2004-12-14 Miguel Sofer <msofer@users.sf.net>
* generic/tclCmdIL.c: