gh-140494: require that Tcl is built with thread support #141241
+55
−90
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This PR modifies
_tkinter.cto require that Tcl is built with thread support. It also modifies the documentation fileDoc/library/tkinter.rstaccordingly.Note that this only affects Tcl 8.x, as Tcl 9.x no longer has the
--disable-threadsbuild option and is always thread-enabled.📚 Documentation preview 📚: https://cpython-previews--141241.org.readthedocs.build/