difficulties using camlp4

difficulties using camlp4

[Grégoire Seux]

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hello,

i would like to use the Str module in a program so i should use camlp4

but when i try the following command

ocamlc -pp "camlp4o pa_extend.cmo" -I +camlp4  main.ml


the following error occurs:

> File "main.ml", line 1, characters 0-1:

Error: Error while linking main.cmo:

Reference to undefined global `Str'


could you help with this error ?
thank by advance

-- 
Grégoire
cell # :  94 82 33 064

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Re: [Caml-list] difficulties using camlp4

[Dominique Martinet]

Hello Greg :)

Grégoire Seux wrote on Sat, Jan 23, 2010 at 11:48:10AM +0530 :
> I would like to use the Str module in a program so i should use camlp4

I don't see why using Str would imply using camlp4 ?

to compile a program using str, you should use either
ocamlopt -o myprog str.cmxa main.ml
or
ocamlc -o myprog str.cma main.ml

You're not linking to the str module, that's why the compiler complains
about undefined things.

That appart, you might want to try ocamlfind to manage modules for you,
if you have :
ocamlfind ocaml{c,opt} -linkpkg -package str -o myprog main.ml

It's useless for str alone, but can get in handy when you have alot of
dependancies.

And by the way, if you want to use camlp4 for regexps, you might want to
take a look at mikmatch :
http://martin.jambon.free.fr/mikmatch-manual.html


Regards,

Asmadeus | Dominique Martinet