trying to sort out the vectormath include path mess:

move vectormath to src folder, and add a vmInclude.h that contains the logic in a single location.
If you still need a system-wide vectormath, make sure to define USE_SYSTEM_VECTORMATH (in build system)

src/BulletMultiThreaded/TrbDynBody.h

@@ -17,7 +17,7 @@ subject to the following restrictions:
 #ifndef __T_RB_DYN_BODY_H__
 #define __T_RB_DYN_BODY_H__
 
-#include <vectormath_aos.h>
+#include "vectormath/vmInclude.h"
 using namespace Vectormath::Aos;
 
 #include "TrbStateVec.h"