Fix toplevel compilation (missing runtime file)

Author: vouillon

toplevel/examples/lwt_toplevel/dune

@@ -145,6 +145,27 @@
    %{target}
    (run ./effects_flags.exe txt %{profile}))))
 
+(rule
+ (target javascript_files.txt)
+ (enabled_if
+  (and %{oxcaml_supported} %{lib-available:js_of_ocaml-ppx}))
+ (action
+  (with-stdout-to
+   %{target}
+   (pipe-stdout
+    (run ocamlfind query -format "%+(jsoo_runtime)" -r ppxlib)
+    (run grep -v ^$)))))
+
+(rule
+ (target javascript_files.txt)
+ (enabled_if
+  (not
+   (and %{oxcaml_supported} %{lib-available:js_of_ocaml-ppx})))
+ (action
+  (with-stdout-to
+   %{target}
+   (echo ""))))
+
 (rule
  (targets toplevel.js)
  (action
@@ -169,6 +190,7 @@
    --toplevel
    --disable
    shortvar
+   %{read-strings:javascript_files.txt}
    %{dep:toplevel.bc}
    -o
    %{targets})))