python312 build with tkinter option fails

[Mayuresh <mayuresh%acm.org@localhost>]

On a recent pkgsrc on NetBSD 10.1 amd64, trying to build python312 with
tkinter option enabled:

    --- Modules/_tkinter.o ---
    ./Modules/_tkinter.c:66:10: fatal error: tclTomMath.h: No such file or directory
       66 | #include <tclTomMath.h>
          |          ^~~~~~~~~~~~~~

I recollect dealing with this in wip/yosys-dev with a patch like this:

    -#include <tclTomMath.h>
    -#include <tclTomMathDecls.h>
    +#include <tcl/generic/tclTomMath.h>
    +#include <tcl/generic/tclTomMathDecls.h>


In a related issue, bulkbuild reports a cyclic dependency for this
package:

    Cyclic dependency for package:
    python312-3.12.9
    tk-8.6.16
    libXft-2.3.8nb1
    libXrender-0.9.12
    libX11-1.8.11
    libxcb-1.17.0
    py312-xcbgen-1.17.0
    python312-3.12.9

Please advise.

-- 
Mayuresh