Install pkg-config files for OS X

[caleb]

Hi,

I just learned about SFML, and I tried to add it to my little SDL learning project and found that the sfml-all.pc isn't installed on OS X.

I installed SFML via homebrew, so I have a pkgconfig folder that's populated, so it would be nice to have the package config file on OS X. I can create a PR, but I wanted to check in here to make sure there wasn't a reason for this.

Thanks!
Caleb

[Hiura]

I'm not against it, but since I've never used it I wouldn't be able to maintain it. For example, I've no idea if it plays nicely with frameworks/dylibs differences... And if you install SFML the "traditional" way (like brew does) you can expect it to live in /usr/local, so what is the point of pkgconfig? (This is a honest question from someone who doesn't use such tools. )