Require xextproto >= 7.0.99.1

Back in 2009, (in xextproto 7.1), the DPMS header was split into dpms.h
(client) and dpmsconst.h (server). Drivers should thus include the server
header, dpmsconst.h.

All servers of interest should be using at least xextproto 7.1 by now, so
just make it a hard requirement.

This fix not only slightly simplifies the include logic, but also now
includes the correct file, since we were not previously defining
HAVE_XEXTPROTO_71 in configure.ac.

See the following commit in xf86-video-intel for what was missing:
0a4c4c5fe8ebad2dd13f5770bd90a194eebb2890

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>

BUG=none
TEST=builds clean w/ xextproto >= 7.0.99.1

Change-Id: Ief94de77e5d5928442ebad2eb432eec17fb4664d
Reviewed-on: https://chromium-review.googlesource.com/168189
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Commit-Queue: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Daniel Kurtz <djkurtz@chromium.org>
2 files changed