[Bug 78242] New: Steam cannot load mesa drivers (libGL error: driver pointer missing)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78242

          Priority: medium
            Bug ID: 78242
          Assignee: dri-devel at lists.freedesktop.org
           Summary: Steam cannot load mesa drivers (libGL error: driver
                    pointer missing)
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: laszlo.kertesz at gmail.com
          Hardware: Other
            Status: NEW
           Version: git
         Component: Drivers/Gallium/r600
           Product: Mesa

I rebuilt mesa recently (on Debian Testing 64 bit) an i see that Steam is
broken again. I get this in a terminal (accompanied by a graphical popup saying
"OpenGL GLX context is not using direct rendering, which may cause performance
problems.") :

Running Steam on debian  64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for
appid(steam)/version(1398120891_client)
libGL error: dlopen /usr/lib/i386-linux-gnu/dri/r600_dri.so failed
(/media/bigdata/games/.steam/steam/ubuntu12_32/steam-runtime/i386/lib/i386-linux-gnu/libgcc_s.so.1:
version `GCC_4.7.0' not found (required by
/usr/lib/i386-linux-gnu/dri/r600_dri.so))
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL error: dlopen /usr/lib/i386-linux-gnu/dri/swrast_dri.so failed
(/media/bigdata/games/.steam/steam/ubuntu12_32/steam-runtime/i386/lib/i386-linux-gnu/libgcc_s.so.1:
version `GCC_4.7.0' not found (required by
/usr/lib/i386-linux-gnu/dri/swrast_dri.so))
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast

Then other Steam specific stuff.
The Steam GUI launches but cannot launch anything.

Now i dont know what is the issue here since i built Mesa this way since a very
long time ago, with my current (gcc 4.8) compiler and had no such issues.

strings
/media/bigdata/games/.steam/steam/ubuntu12_32/steam-runtime/i386/lib/i386-linux-gnu/libgcc_s.so.1
| grep GCC_4
GCC_4.0.0
GCC_4.2.0
GCC_4.3.0
GCC_4.4.0
GCC_4.5.0

Other 64 and 32 bit opengl games seems to work fine.

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