Document source revision and build provenance of Windows libtommath.dll in Tcl/Tk 9.0.4

Documentation

Could the source release/commit and build provenance be documented for the Windows x64 libtommath.dll supplied with CPython's Tcl/Tk 9.0.4 dependency bundle?

Public artifact references:

• cpython-bin-deps: tcltk-9.0.4.0/amd64/bin/libtommath.dll
• cpython-source-deps: tcl-9.0.4.0/libtommath/win64
• The corresponding Tcl Windows makefile

The DLL in both repositories has Git blob ID 856af88d7e51af58d705d9b187a0b151880bafee and size 81,408 bytes. It has no file/product version resource. The dynamic x64 makefile copies that prebuilt DLL instead of compiling the adjacent LibTomMath sources, so the neighboring source changelog does not by itself establish the DLL's source revision.

A pointer to the exact upstream release/commit, build recipe/toolchain, and applicable license/notice would make component attribution and advisory-version matching possible without guessing. If this information already exists, could it be linked alongside the binary dependency records?

This is a provenance/documentation request, not a report of a confirmed vulnerability. I am filing here because the binary-dependency repository has issues disabled.

从所引用的 tcl-9.0.4.0/win/makefile.vc 以及 amd64 libtommath.dll 和 win64 源代码路径开始，然后跟踪动态 x64 构建如何处理预构建 DLL。完成标准是链接到完全对应的上游源代码发布版本或 commit，记录构建配方和工具链，并将适用的许可证或 notice 与二进制依赖记录一并记录。