This is usually code for "needs UNIX/POSIX APIs", or its uglier cousin, "uses C99". I wouldn't mind Mingw32, and would mind a little bit Cygwin, but the problem is that for a video game I can't even begin to consider those platforms for Windows. All the official platform SDKs, or the third party ones (think Steam) require the Microsoft compilers and libs.
Windows (under Cygwin)
This is usually code for "needs UNIX/POSIX APIs", or its uglier cousin, "uses C99". I wouldn't mind Mingw32, and would mind a little bit Cygwin, but the problem is that for a video game I can't even begin to consider those platforms for Windows. All the official platform SDKs, or the third party ones (think Steam) require the Microsoft compilers and libs.