[Mesa-users] 'Unable to load driver nouveau_dri.so' with branch master

[Remi Galan alfonso]

Hello mesa-users, 

I am currently trying to link a program with the latest version of 
mesa but the dynamic libraries are not found correctly at runtime. 

I need to upgrade my OpenGL version (I want to test something with 
compute shaders) and the libgl1-mesa-dev only gives me Mesa 10.5.2 
(OpenGL 3.3). Thus I decided to compile the master branch of mesa and 
link my program with the resulting libraries. 

I am on a Ubuntu 14.04 machine (with a GeForce 8800 GTS graphic card). 
I am on mesa commit ead7736: 'glsl_to_tgsi: don't use the negate 
modifier in integer ops after bitcast'. 
I compiled using the following commands: 

sudo apt-get install g++ git valgrind python2.7 python-mako flex bison \ 
x11proto-dri2-dev x11proto-dri3-dev autoconf libtool \ 
libpthread-stubs0-dev x11proto-gl-dev libpciaccess-dev \ 
x11proto-present-dev libxcb1-dev libxcb-dri3-dev libxcb-present-dev \ 
libxshmfence-dev libxcb-dri2-0-dev libxi-dev libxdamage-dev xorg-dev \ 
libx11-xcb-dev libxcb-glx0-dev libudev-dev llvm-dev libva-dev 
git clone git://anongit.freedesktop.org/git/mesa/mesa 
# The libdrm version provided by apt-get is not recent enough. 
wget http://dri.freedesktop.org/libdrm/libdrm-2.4.68.tar.bz2 
tar -xjf libdrm-2.4.68.tar.bz2 
rm libdrm-2.4.68.tar.bz2 
cd libdrm-2.4.68/ 
./configure 
make 
sudo make install 
cd ../mesa 
aclocal 
autoconf 
./autogen.sh 
make -j 7 
# sudo make install 
# I have done the make install in a previous session, however due to 
# the dynamic libraries not working correctly, I ended up without a 
# working graphical session and thus have not done it this time. 

I thus have the following in mesa/lib: 
$ ls 
gallium libglapi.so.0.0.0 libGL.so.1 
i915_dri.so libGLESv1_CM.so libGL.so.1.2.0 
i965_dri.so libGLESv1_CM.so.1 mesa_dri_drivers.so 
libEGL.so libGLESv1_CM.so.1.1.0 nouveau_vieux_dri.so 
libEGL.so.1 libGLESv2.so r200_dri.so 
libEGL.so.1.0.0 libGLESv2.so.2 radeon_dri.so 
libglapi.so libGLESv2.so.2.0.0 swrast_dri.so 
libglapi.so.0 libGL.so 

When I am running a program with these libraries I have the following 
errors: 
$ LD_LIBRARY_PATH=~/Programs/mesa/lib/ LIBGL_DEBUG=verbose LIBGL_DRIVERS_PATH=~/Programs/mesa/lib glxinfo 
libGL: OpenDriver: trying /home/remi/Programs/mesa/lib/nouveau_dri.so 
libGL: dlopen /home/remi/Programs/mesa/lib/nouveau_dri.so failed (/home/remi/Programs/mesa/lib/nouveau_dri.so: cannot open shared object file: No such file or directory) 
libGL error: unable to load driver: nouveau_dri.so 
libGL error: driver pointer missing 
libGL error: failed to load driver: nouveau 
libGL: OpenDriver: trying /home/remi/Programs/mesa/lib/swrast_dri.so 
libGL: Can't open configuration file /usr/local/etc/drirc: No such file or directory. 
libGL: Can't open configuration file /home/remi/.drirc: No such file or directory. 
display: :0 screen: 0 
direct rendering: Yes 
[...] 
OpenGL renderer string: Software Rasterizer 
OpenGL version string: 2.1 Mesa 12.1.0-devel (git-ead7736) 
[...] 

While I might be screwing up some paths here, I had the same errors in 
my previous session where I did 'sudo make install'. 

It is looking for 'nouveau_dri.so' which doesn't exist while 
'nouveau_vieux_dri.so' exists. So I tried to add a symbolic link 
'nouveau_dri.so -> nouveau_vieux_dri.so', which then gives: 

libGL: OpenDriver: trying /home/remi/Programs/mesa/lib/nouveau_dri.so 
libGL: driver does not expose __driDriverGetExtensions_nouveau(): /home/remi/Programs/mesa/lib/nouveau_dri.so: undefined symbol: __driDriverGetExtensions_nouveau 
libGL error: core dri or dri2 extension not found 
libGL error: failed to load driver: nouveau 
[...] 

Which is not surprising since it exposes 
'__driDriverGetExtensions_nouveau_vieux()' and not 
'__driDriverGetExtensions_nouveau()'. 

Do you have any solution to make the latest mesa work on my computer? 

Best regards, 
Rémi 
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