Mesa (master): meson: define inc_gbm as empty if not otherwise assigned

[Dylan Baker]

Module: Mesa
Branch: master
Commit: 5fcadaec80c97a1df280b7bab01c271e323a468a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5fcadaec80c97a1df280b7bab01c271e323a468a

Author: Dylan Baker <dylan at pnwbakers.com>
Date:   Wed Jan  3 12:33:55 2018 -0800

meson: define inc_gbm as empty if not otherwise assigned

Otherwise this could be undefined in the egl directory.

Signed-off-by: Dylan Baker <dylan.c.baker at intel.com>
Acked-by: Eric Engestrom <eric.engestrom at imgtec.com>

---

 src/meson.build | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/meson.build b/src/meson.build
index 5fc14acb0c..730b2ff6e4 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -67,6 +67,8 @@ subdir('loader')
 subdir('glx')
 if with_gbm
   subdir('gbm')
+else
+  inc_gbm = []
 endif
 if with_egl
   subdir('egl')