Make libstdc++.tag retrieval work for Windows
Hi,
This is an attempt to make mm-common buildable/installable for Visual Studio builds (but, likely not fully functional due to m4 usage). From the commit message:
With this, the mm-common package will now build for Windows/MSVC; it is still likely a long way to go to actually make it usable for Windows
This ensures that we use the curl.exe and wget.exe that we happen to find, and the corresponding DLLs of the libraries can be loaded.
Builds and install now work on Windows/MSVC.
With blessings, thank you!