auxiliary: Add u_staging.c to SCons build.

This is a follow-up to commit b85c71d4e1e4ed788be834dff5b7b3c0cd0402ac
which added u_staging.c to make.

diff --git a/src/gallium/auxiliary/SConscript b/src/gallium/auxiliary/SConscript
index 1f09198..3124e20 100644 (file)
--- a/src/gallium/auxiliary/SConscript
+++ b/src/gallium/auxiliary/SConscript
@@ -180,6 +180,7 @@ source = [
     'util/u_sampler.c',
     'util/u_simple_shaders.c',
     'util/u_snprintf.c',
+    'util/u_staging.c',
     'util/u_surface.c',
     'util/u_surfaces.c',
     'util/u_texture.c',