[issue20168] Derby: Convert the _tkinter module to use Argument Clinic

[Steve Dower]

Steve Dower added the comment:

This broke Windows builds because of unnecessary "static" qualifiers on the forward declarations at lines 2685 and 3006 (as discussed on #20323).

Removing "static" from these lines fixes the build.

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nosy: +steve.dower
resolution: fixed -> 
status: closed -> open

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<http://bugs.python.org/issue20168>
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