Sorry, the -dbgsym packages are also broken. I'd suggest you reinstall the -dbg packages, and "hot-fix" them for this purpose with:
sudo objcopy -R .gnu_debuglink --add-gnu-debuglink=/usr/lib/debug/usr/lib/dri/r300_dri.so /usr/lib/dri/r300_dri.so
sudo objcopy -R .gnu_debuglink --add-gnu-debuglink=/usr/lib/debug/usr/lib/mesa/libGL.so.1.2 /usr/lib/mesa/libGL.so.1.2
A future update of the mesa packages will also fix the debug packages.
Sorry, the -dbgsym packages are also broken. I'd suggest you reinstall the -dbg packages, and "hot-fix" them for this purpose with: debuglink= /usr/lib/ debug/usr/ lib/dri/ r300_dri. so /usr/lib/ dri/r300_ dri.so debuglink= /usr/lib/ debug/usr/ lib/mesa/ libGL.so. 1.2 /usr/lib/ mesa/libGL. so.1.2
sudo objcopy -R .gnu_debuglink --add-gnu-
sudo objcopy -R .gnu_debuglink --add-gnu-
A future update of the mesa packages will also fix the debug packages.