headers: Sync up some header guard changes from drm-next.
This pulls in pieces of drm-next d65d31388a23
("Merge tag 'drm-misc-next-fixes-2017-11-07' of
git://anongit.freedesktop.org/drm/drm-misc into drm-next")
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
diff --git a/include/drm/via_drm.h b/include/drm/via_drm.h
index 182f879..8b69e81 100644
--- a/include/drm/via_drm.h
+++ b/include/drm/via_drm.h
@@ -26,6 +26,10 @@
#include "drm.h"
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
/* WARNING: These defines must be the same as what the Xserver uses.
* if you change them, you must change the defines in the Xserver.
*/
@@ -272,4 +276,8 @@
drm_via_blitsync_t sync;
} drm_via_dmablit_t;
+#if defined(__cplusplus)
+}
+#endif
+
#endif /* _VIA_DRM_H_ */