Please provide working .a/.lib files

I'm trying to write a program on Windows that uses cmark as a library, but I can't get it to compile. I tried running the following commands in a WSL to build a libcmark.a file for MinGW:

sudo apt install g++-mingw-w64
git clone https://github.com/commonmark/cmark
cd cmark
sed -i 's/i686/x86_64/g' toolchain-mingw32.cmake    # Set the architecture to x86_64
make mingw

This creates a libcmark.a file in build-mingw/src, but when I try to use it in my project, I get a linker error:

main.o:main.cpp:(.text+0x8d): undefined reference to `__imp_cmark_markdown_to_html'

If I try MSVC instead, it's even worse, I haven't even managed to compile a .lib file. It says here to simply run nmake, but when I do that, I get the following error:

NMAKE : fatal error U1064: MAKEFILE not found and no target specified

If I try nmake MAKEFILE instead, I get

NMAKE : fatal error U1073: don't know how to make 'MAKEFILE'

All this would be much easier if you simply provided working .a and .lib files that I could download and use without compiling them myself.

Start by reading toolchain-mingw32.cmake and the Windows installation instructions linked in the issue, then inspect the existing output under build-mingw/src and the documented nmake entry point. Done means users can obtain working MinGW .a and MSVC .lib files, or follow verified build instructions that produce them.