diff --git a/alib2common/src/alib/functional b/alib2common/src/alib/functional
new file mode 100644
index 0000000000000000000000000000000000000000..7d4310cad8534a3b0370221659bb8a8987b4f929
--- /dev/null
+++ b/alib2common/src/alib/functional
@@ -0,0 +1 @@
+#include <ext/functional>