1 files changed, 15 insertions, 0 deletions
diff --git a/rebar.config.script b/rebar.config.script
new file mode 100644
index 0000000..c19a751
--- /dev/null
+++ b/rebar.config.script
@@ -0,0 +1,15 @@
+{match, [ErtsNumber]} = re:run(erlang:system_info(otp_release), "R(\\d+).+", [{capture, [1], list}]),
+ErtsVsn = erlang:list_to_integer(ErtsNumber),
+Opts1 = case lists:keysearch(erl_opts, 1, CONFIG) of
+            {value, {erl_opts, Opts0}} ->
+                Opts0;
+            false ->
+                []
+        end,
+Opts2 = if
+            ErtsVsn >= 15 ->
+                [{d, have_callback_support} | Opts1];	
+             true ->
+                Opts1
+        end,
+lists:keystore(erl_opts, 1, CONFIG, {erl_opts, Opts2}).