build failure on OCaml 4.03, 4.04+beta
opam-builder reports build failures for recent xtmpl versions 0.{11,12,13}, I think due to a ppx issue. opam-builder report: http://opam.ocamlpro.com/builder/html/xtmpl/xtmpl.0.13.0/8a5c5f5a155a9f601ea10430e803462b
File "xtmpl_xml.ml", line 173, characters 78-79:
Error: Syntax error: pattern expected.
make: *** [xtmpl_xml.cmo] Error 2