Comment # 5 on bug 80673 from Hadrien

I am making progress, I can build r600_dri.so in debug mode, make programs use
it instead of the version released with Ubuntu and perform step by step
debugging. However some functions are located in libgallium.so and I can't
figure out how to build that library. The only thing close I get is a static
library in a hidden directory with path "src/gallium/auxiliary/.libs"