wimlib

I agree with you. The developer of wimlib should consider removing language barriers of its program.

I have tried to build it, and it works well on MSYS2 environment. You don't need to change any code to support it.
You can consider using it to create ARM64 binaries.

The Clang also have full arm64 support, and it can be easily setup via MSYS2 without changing the configure script.

The wimlib dll and exe file on Windows doesn't show any information at properties dialog. I hope that adding these files can fix it.
It doesn't need much more action, just need "windres" in the binutils package.

Yes, because the official binary release may not turn on optimization of it, and some feature may not enabled. Build from source code can fix these problems.

But when building on cygwin, no Export Definition File (.def file) was created, which is required to create a Visual C compatible import library.

The current way to build wimlib on Windows is difficult. I hope this change can make it buildable with Visual Studio.

I really hope that the wimlib's source code can be hosted at GitHub so that contributors can send patch easily.