https://bugs.freedesktop.org/show_bug.cgi?id=84662
--- Comment #24 from Michel Dänzer michel@daenzer.net --- (In reply to Andy Furniss from comment #22)
It seems like current mesa doesn't build/install properly when patched without being totally clean.
The mesa patch in this bug on an already built tree does provoke -
make[3]: Entering directory '/mnt/sdb1/Src64/Mesa-git/mesa/src/gallium/drivers/radeon' CC r600_buffer_common.lo CCLD libradeon.la
but radeonsi_dri.so is not changed after make install.
How about lib/gallium/radeonsi_dri.so in the build tree? That gets updated correctly for me. I don't use make install though, and I'm using an out-of-tree build, so maybe it's related to one of those. Anyway, please file another report about that.