meson: don't build classic mesa tests without dri_drivers

Since mesa_classic is build-on-demand the tests will create a demand and
add a bunch of extra compilation.

Fixes: 43a6e84927e3b1290f6f211f5dfb184dfe5a719e
       ("meson: build mesa test.")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

diff --git a/src/mesa/meson.build b/src/mesa/meson.build
index c1334c9..72d8717 100644 (file)
--- a/src/mesa/meson.build
+++ b/src/mesa/meson.build
@@ -732,6 +732,6 @@ endif
 if with_glx == 'xlib'
   subdir('drivers/x11')
 endif
-if with_tests
+if with_tests and dri_drivers != []
   subdir('main/tests')
 endif