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<th>Priority</th>
<td>medium
</td>
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - libGL cannot load r600_dri unless application itself is linked to libstdc++"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59296">59296</a>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>libGL cannot load r600_dri unless application itself is linked to libstdc++
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Reporter</th>
<td>rankincj@googlemail.com
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>git
</td>
</tr>
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<th>Component</th>
<td>Drivers/Gallium/r600
</td>
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<th>Product</th>
<td>Mesa
</td>
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<pre>I have just tried to play WoW using the latest 64 bit Mesa from git, and have
noticed that libGL refuses to load the r600_dri object, complaining that:
libGL error: dlopen /usr/local/lib64/dri/r600_dri.so failed
(/usr/local/lib64/dri/r600_dri.so: undefined symbol:
_ZTVN10__cxxabiv120__si_class_type_infoE)
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
The symbol _ZTVN10__cxxabiv120__si_class_type_infoE is from libstdc++, which is
not listed as a dynamic dependency of r600_dri. Since wine64 doesn't have a
dynamic dependency on libstdc++ either, the dynamic linker does not know how to
resolve this symbol.
After I had relinked r600_dri against libstdc++, WoW-64.exe was able to run
successfully.</pre>
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