[trojita] Built trojita on MSVC2012

[kang joni]

Recently I do small hack to make it build on msvc2012,
https://drive.google.com/file/d/0B7YRdCK_Bnn6RUtSNkszZlZLZXc/edit?usp=sharing
thanks , hope will useful and sorry dont have time to write the patch :)