I'm try to build Python with mingw. It mostly all done except 64bit build where I got error on _tkinter module. I use mingw-w64 with gcc-4.7.2. I try various version of tcl/tk 8.5.11, 8.5.12, 8.5.13 but without success. On 32bit builds all fine It crash only on 64bit. I attach gdb backtrace. I find that python crash on module unload. Can you told me is it tcl/tk error or python error?