dependency on ppx_tools

Jan Rochel · Jan Rochel · commit 62ba133fc2af · 2019-11-15T17:18:31.000+01:00
diff --git a/opam b/opam
@@ -15,5 +15,6 @@ depends: [
   "ocaml" {>= "4.06.1"}
   "ocamlfind" {build}
   "tyxml" { >= "4.3.0" }
+  "ppx_tools"
 ]
 authors: "Julien Sagot"
