The library itself (libGL) is only built when -Dglx=dri, yet it's
accompanying tests are build even with -Dglx=xlib.
Adjust the guards, so we don't build the tests when they are not
applicable
v2:
- Reword commit message (Dylan)
- Drop build_by_default hunk (Dylan)
Fixes: a47c525f32 ("meson: build glx")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
(cherry picked from commit 9527f9ea26)
0d692a5b54