meson: better defaults for osx, windows and cygwin
authorJon Turney <jon.turney@dronecode.org.uk>
Fri, 2 Feb 2018 22:25:48 +0000 (22:25 +0000)
committerJon Turney <jon.turney@dronecode.org.uk>
Mon, 5 Feb 2018 19:34:37 +0000 (19:34 +0000)
commit4772909447d1c214603270bee29df650e5a955b7
treeaf297a969ea2d3265c3eacab0d5d9d6a486c6c4f
parente2b31e9acf034407cc020d8956b06bd0995fe809
meson: better defaults for osx, windows and cygwin

set suitable defaults for 'dri-drivers', 'gallium-drivers', 'vulkan-drivers'
and 'platforms' options for osx, windows and cygwin, adding cygwin where
appropriate.

v2: error() for unknown OS

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
meson.build