[Caml-list] Ocamlbuild question

[Matthieu Dubuget <matthieu.dubuget@gmail.com>]

Hello,

I'm trying to build xml-light using ocamlbuild (don't ask me why, I do 
not know myself…)

The standard way for building xml-light.cma is working (with a patch 
stolen from debian package):

> wget http://tech.motion-twin.com/zip/xml-light-2.2.zip
> unzip xml-light-2.2.zip
> cd xml-light
> sed -i -e 's/.mly.ml:/%mli %ml: %mly/' Makefile
> make xml-light.cma


> ...
>
> ocamlyacc xml_parser.mly
> ocamlc xml.mli
> ocamlc dtd.mli
> ocamlc xml_parser.mli
> ocamlc -c xml_parser.ml
> ocamllex xml_lexer.mll
> 228 states, 1162 transitions, table size 6016 bytes
> ocamlc xml_lexer.mli
> ocamlc -c xml_lexer.ml
> ocamlc -c dtd.ml
> ocamlc xmlParser.mli
> ocamlc -c xmlParser.ml
> ocamlc -c xml.ml
> ocamlc -o xml-light.cma -a xml_parser.cmo xml_lexer.cmo dtd.cmo 
> xmlParser.cmo xml.cmo

Here is my try with ocamlbuild:

> wget http://tech.motion-twin.com/zip/xml-light-2.2.zip
> unzip xml-light-2.2.zip
> cd xml-light
> for d in Xml_parser Xml_lexer Dtd XmlParser Xml;
> do echo "$d" >> xml-light.mllib;
> done
> ocamlbuild xml-light.cma
> ls _build/*.cmo

> ...
>
> Circular dependencies: "dtd.cmo" already seen in
> [ "xml.cmo"; "dtd.cmo"; "xml_parser.cmo" ]
>
> Compilation unsuccessful after building 22 targets (0 cached) in 00:00:00.
> _build/dtd.cmo _build/xml.cmo _build/xml_lexer.cmo 
> _build/xml_parser.cmo _build/xmlParser.cmo

I would like to understand the origin of the problem?

Salutations

Matthieu