added homepage URL, now we have one

[helm.git] / helm / matita / matitaExcPp.ml

diff --git a/helm/matita/matitaExcPp.ml b/helm/matita/matitaExcPp.ml
index 2c46da4f566c4f42488c65c430428787378ce752..f141b129a73b686448c694a334af057e8d5f7de6 100644 (file)
--- a/helm/matita/matitaExcPp.ml
+++ b/helm/matita/matitaExcPp.ml
@@ -37,5 +37,8 @@ let to_string =
   | UriManager.IllFormedUri uri -> sprintf "invalid uri: %s" uri
   | CicEnvironment.Object_not_found uri ->
       sprintf "object not found: %s" (UriManager.string_of_uri uri)
+  | Unix.Unix_error (code, api, param) ->
+      let err = Unix.error_message code in
+      "Unix Error (" ^ api ^ "): " ^ err
   | exn -> "Uncaught exception: " ^ Printexc.to_string exn