Build projectM from sources on Windows, or download official .lib artifact

[korfuri]

It looks like projectM is nearing the point where they can build on Windows when they release: projectM-visualizer/projectm#98

It would be nice to either get their official artifacts from there at build time, or to build from source ourselves on Windows, instead of relying on volunteers contributing pre-built .lib files to the repo.

[korfuri]

Update on this: the projectM .lib is being built via appveyor. But it's built via MSVC, and I can't find a way to link a MSVC-built C++ lib when using mingw's g++. That's currently blocking progress.

[korfuri]

@dizzisound did you have a chance to publish your method for building projectM on Windows? Thanks :)

[dizzisound]

@korfuri I was at it after the last release of Milkrack, but there were edits I pulled related with the local build of glm that resulted in new compilation issues. Seeing that there was activity growing in the ProjectM repo, I gave up with my issues. Then I was overloaded with my day job and life routines... I'll see in the next days if I manage to clone a fresh project from Milkrack master branch and try it all again.
Cheers, I wish you a nice weekend :-)

[dizzisound]

@korfuri Managed to commit my edits to build libprojectM here: https://github.com/dizzisound/projectm
It works for me, I really don't know if it's sufficiently clean and generic on all Windows configurations.
I hope some intrepid tester can give it a try?

Compiler: gcc 7.3.0 Rev2
Build commands:

./autogen.sh
./configure --with-pic --enable-static --disable-sdl --disable-threading
make