adam4813/Sigma — pull request #48 by catageek (2013-10-25 21:56:27+00:00)
Title: Fix Bullet and SDL include path

This fix the "Fatal error : LinearMath/btVector3.h: no such file or directory" that linux users meet when including Bullet headers.

Moreover, the reference to SDL2 headers was fixed since SDL refers to the old version on Linux. This fix must be tested on other platforms.