evdev: check for ABS_MT_POSITION_X/Y to determine mt devices

[platform/upstream/libinput.git] / src / filter.c

diff --git a/src/filter.c b/src/filter.c
index 91e588d..a55ebf2 100644 (file)
--- a/src/filter.c
+++ b/src/filter.c
@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <stdlib.h>
 #include <stdint.h>
 #include <limits.h>