Merge "Kernel header v4.7.2 defined a new structure."
diff --git a/Android.mk b/Android.mk
index 86f6bae..a9b11ad 100644
--- a/Android.mk
+++ b/Android.mk
@@ -269,6 +269,7 @@
     -DHAVE_STATFS64=1 \
     -DHAVE_STDBOOL_H=1 \
     -DHAVE_STRERROR=1 \
+    -DHAVE_STRUCT_BTRFS_IOCTL_DEFRAG_RANGE_ARGS_START=1 \
     -DHAVE_STRUCT_BTRFS_IOCTL_FEATURE_FLAGS_COMPAT_FLAGS=1 \
     -DHAVE_STRUCT_FLOCK=1 \
     -DHAVE_STRUCT_FLOCK64=1 \