I was also under the impression that ocamlbuild Ocamlfind integration was unable to use archive(syntax) or archive(preprocessor) dependencies for ocamlfind packages providing syntax extensions. This is a serious limitation as it makes some ocamlfind packages unusable. If you're considering improving this, I thank you in advance.
> I took a look at adding support for this into ocamlbuild (when -use-ocamlfind is specified), but I couldn't spot any way to get ocamlfind to output the syntax options. I'm not sure what you're looking for exactly. If you whish to know what archives should be included at the preprocessing step, this is done using the "-predicates" option with, say, "-predicates syntax,preprocessor", which will gives you the archives included in this situation: % ocamlfind query -predicates syntax,preprocessor -format '%A' type-conv pa_type_conv.cma > Does everyone else manually run the camlp4o command when using syntax extensions like type-conv or pa_lwt? This is useful for debugging purposes, and for some (minor) modes of use of Camlp4. However, for most Camlp4 development, this has the severe downside of losing the location information of the original file, if I understand correctly. This means that you don't want to use it as a transparent step towards compilation, but only in exceptional situations where the developers will re-edit the output code. On Sat, Dec 31, 2011 at 12:19 AM, Anil Madhavapeddy <[email protected]> wrote: > There's a very useful %.pp.ml target in OCamlbuild that runs the source > through camlp4 and outputs the result. This doesn't work when ocamlfind is > used, as it includes the -pp flags within the ocamlfind invocation. > > I took a look at adding support for this into ocamlbuild (when > -use-ocamlfind is specified), but I couldn't spot any way to get ocamlfind > to output the syntax options. > > I just wanted to check that this is all in fact true, since it requires > patching ocamlbuild, findlib, and oasis to make it work. Does everyone else > manually run the camlp4o command when using syntax extensions like > type-conv or pa_lwt? > > -anil > > -- > Caml-list mailing list. Subscription management and archives: > https://sympa-roc.inria.fr/wws/info/caml-list > Beginner's list: http://groups.yahoo.com/group/ocaml_beginners > Bug reports: http://caml.inria.fr/bin/caml-bugs > > -- Caml-list mailing list. Subscription management and archives: https://sympa-roc.inria.fr/wws/info/caml-list Beginner's list: http://groups.yahoo.com/group/ocaml_beginners Bug reports: http://caml.inria.fr/bin/caml-bugs
