tree d08f2454bb6a5b7361cb4724eeda59ec3e07f9b0
parent f121ac68b0b4e3b132201ec5fe13822d5a8cc162
author Emil Velikov <emil.velikov@collabora.com> 1480967560 +0000
committer Emil Velikov <emil.l.velikov@gmail.com> 1484755274 +0000

configure: use standard check for attribure alias

Currently we have two macros - HAVE_ALIAS and GLX_ALIAS_UNSUPPORTED.
To make it even better former of which is explicitly cleared in some
cases while not in others.

Clear all that up by using a single macro properly set during configure.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>