Swrast was missing a free for the culmination of driConcatConfigs.
Use free(), not _mesa_free() since we shouldn't be calling any Mesa
functions from the GLX code. driConcatConfigs() should probably use
regular malloc/free to be consistant but the Mesa functions just wrap
the libc functions anyway.
psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs);
psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs);
+ free(driver_configs);
+
psp->destroyScreen = driDestroyScreen;
psp->createContext = driCreateContext;
psp->createDrawable = driCreateDrawable;