Non accelerated 3D when installing outside system tree

[alexandre schenberg]

Hi. When building a simple OpenGL program, it gets direct rendering as expected.
However, when I use "-Wl,-rpath=/arquivos/Mesa/lib/" to make the program use my built from scratch Mesa,
the program starts to not use direct rendering. 
So I was wondering if it is possible to use direct rendering with my own custom built Mesa, instead the one provided with the system?
If yes, what would be required?
P.S: Keep in mind that this custom built Mesa is also using a custom build DRM, with its own dir, outside the usual system tree of directories.