mesa: vdpau symlinks, broken after 1a52fdc
Fixes #17559. /cc @edolstra.Using *relative* symlinks doesn't break when moving the files.(cherry picked from commit 73e1242172d8012b1c6054a7f33bda1dc6f3bbc6)
Vladimír Čunát 9 years ago 4c09ea7e 9cb194cf