39dylib: BSD Sockets for Game Maker
About this library:
39dylib is the UNIX sibling of 39dll for Windows. The intended use of 39dylib is to enable networking with Game Maker for Mac, and to make the porting of Game Maker games that use 39dll considerably easier.
About these libraries:
39dll.dll is the Windows library. 39dylib.dylib is the Macintosh library, and 39dylib.a is the iOS library.