Bug#740128: nouveau: libgl looks for nouveau_dri.so on incorrect path with multiarch

[Alejandro Carrazzoni <ale.carrazzoni@gmail.com>]

Package: libgl1-mesa-dri
Version: 9.2.2-1
Severity: important
File: nouveau

When using nouveau I didn't have 3d acceleration, running glxinfo gave the
following error:

    name of display: :0.0
    libGL: OpenDriver: trying /usr/lib/dri/tls/nouveau_dri.so
    libGL: OpenDriver: trying /usr/lib/dri/nouveau_dri.so
    libGL error: dlopen /usr/lib/dri/nouveau_dri.so failed
(/usr/lib/dri/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: OpenDriver: trying /usr/lib/dri/tls/swrast_dri.so
    libGL: OpenDriver: trying /usr/lib/dri/swrast_dri.so
    libGL error: dlopen /usr/lib/dri/swrast_dri.so failed
(/usr/lib/dri/swrast_dri.so: cannot open shared object file: No such file or
directory)
    libGL error: unable to load driver: swrast_dri.so
    libGL error: reverting to indirect rendering
    display: :0  screen: 0
    direct rendering: No (If you want to find out why, try setting
LIBGL_DEBUG=verbose)

Because of multiarch nouveau_dri.so is currently in /usr/lib/i386-linux-gnu/dri
and /usr/lib/x86_64-linux-gnu/dri but libgl isn't looking for them. I had to
change the LIBGL_DRIVERS_PATH variable to get 3d accel to work.



-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.10-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libgl1-mesa-dri:amd64 depends on:
ii  libc6              2.18-1
ii  libdrm-intel1      2.4.52-1
ii  libdrm-nouveau2    2.4.52-1
ii  libdrm-radeon1     2.4.52-1
ii  libdrm2            2.4.52-1
ii  libelf1            0.157-3
ii  libexpat1          2.1.0-4
ii  libffi6            3.0.13-12
ii  libgcc1            1:4.8.2-16
ii  libllvm3.3         1:3.3-16
ii  libstdc++6         4.8.2-16
ii  multiarch-support  2.18-1

Versions of packages libgl1-mesa-dri:amd64 recommends:
pn  libtxc-dxtn-s2tc0 | libtxc-dxtn0  <none>

Versions of packages libgl1-mesa-dri:amd64 suggests:
pn  libglide3  <none>

-- no debconf information