A viable alternative is to install:
1. MinGW from http://www.mingw.org/download.shtmlI think the MinGW folk recommend going instead to
sourceforge and downloading
then running that
installer. There have been reports of problems with the installers on the MinGW page - and I gather that mingw.org site is no longer being actively maintained. The version of the installer on sourceforge is 5.0.3, whereas the latest available version on the mingw.org website is 5.0.2.
I'm not entirely sure that I'm correct on all points ... but I
think that's the current state of play.
Cheers,
Rob