I know this thread
http://stackoverflow.com/questions/216025/gcc-with-visual-studio
but to me it seems that everything mentioned there is rather outdated and it seems to be the tenor is: don't do it
Who knows a better step by step explanation thank you in advance Oops
Well, unfortunately there is still no plugin for Visual Studio. Using makefiles seems to still be the best idea and there are several tools to automate their building.
As far as I remember, the best tool for this that I've used is Makefile Wizard, which allows almost automatic VC project to makefile converting. Also to mention, it can be paired with some external building system.