--- src/3rdparty/mapbox-gl-native/mapbox-gl-native.pro.orig
+++ src/3rdparty/mapbox-gl-native/mapbox-gl-native.pro
@@ -363,6 +363,8 @@
     deps/geometry/0.9.2/include \
     deps/kdbush/0.1.1-1 \
     deps/kdbush/0.1.1-1/include \
+    deps/optional/f5b56b71 \
+    deps/optional/f5b56b71/include \
     deps/pixelmatch/0.10.0 \
     deps/pixelmatch/0.10.0/include \
     deps/polylabel/1.0.3 \