<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>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</div></div></body></html>