Bug#870434: mesa: Break build dependency cycle with libva

[Daniel Schepler <dschepler@gmail.com>]

Source: mesa
Version: 17.1.5-1
Severity: wishlist

Currently, the mesa and libva source packages both Build-Depend on
each other.  It would be nice if mesa could provide a bootstrapping
build profile to break this cycle.

Hopefully, this would just be a matter of disabling the --enable-va
configure flag, and dropping the mesa-va-drivers package for the
stage1 build profile - provided that doesn't change the binary
contents of the other packages.
-- 
Daniel Schepler