b86aa74 dropped the 'extern' from the declaration of __glXDRISWRastProvider
This turns out to be important to me, as without it, the final link only gets
the tentative definition of __glXDRISWRastProvider implied by the declaration,
and not the proper one from glxdriswrast.c, presumably because nothing else
references anything in the object that file generates.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>