From: "Mr. Herr" <misterherr@freenet.de>
To: caml-list@inria.fr
Subject: Re: [Caml-list] ocamlfind? how to compile
Date: Fri, 12 Apr 2013 20:51:40 +0200 [thread overview]
Message-ID: <516857BC.4000909@freenet.de> (raw)
In-Reply-To: <E51C5B015DBD1348A1D85763337FB6D9CC5B4F6D@Remus.metastack.local>
Am 12.04.2013 20:17, schrieb David Allsopp:
> Mr. Herr wrote:
>> Am 12.04.2013 18:19, schrieb David Allsopp:
>>> Mr. Herr wrote:
>>>> I did not understand how the helpers for compilation are supposed to
>> work.
>>>> For example I have a script that executes external programs, and
>>>> needs the Unix module.
>>>>
>>>> For script execution I have in the top of my script: #load
>>>> "unix.cma";;
>>> Good "trick" for findlib is to add:
>>> #use "topfind"
>>> to ~/.ocamlinit (create it, if necessary) and then in future toploops
>> you just say
>>> #require "unix";;
>>> instead. Useful when you start using packages which depend on other
>> packages...
>>
>> First try:
>>
>> I added topfind to .ocamlinit, and in the interactive toplevel I see the
>> startup info, and I can enter [ #require "unix";; ], but when I put [
>> #require "unix";; ] into my .ml file I get a syntax error on it:
> If you want to use findlib toploop directives in an ML file (i.e. invoked using ocaml Foo.ml) then you have to put [#use "topfind";;] into the .ml file as well (which is obviously only worthwhile if you have a lot of things to load). The script, presumably, /usr/lib64/ocaml/topfind contains the instructions necessary to make #require and so on work and .ocamlinit is only read if you invoke an interactive toploop (i.e. it's not read when you supply an input file on the command line).
>
>> str@suse122-intel:~/Ocaml/ml> ocaml unix2_exec.ml ls -l b\* Unknown
>> directive `require'.
>>
>> Same error on compile with ocamlc. Sorry, I don't see how this is supposed
>> to work.
> It was just a tip for using findlib in the toploop! Note that all directives (anything beginning with a '#') are explicitly for ocaml and never ocamlc/ocamlopt.
>
>
Thanks, one little step...
/Str.
next prev parent reply other threads:[~2013-04-12 18:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-11 21:59 [Caml-list] [ANN] Merlin 1.0 released Frédéric Bour
2013-04-12 1:14 ` Francois Berenger
2013-04-13 16:57 ` Frédéric Bour
2013-04-12 16:01 ` [Caml-list] ocamlfind? how to compile Mr. Herr
2013-04-12 16:19 ` David Allsopp
2013-04-12 17:09 ` Mr. Herr
2013-04-12 18:17 ` David Allsopp
2013-04-12 18:51 ` Mr. Herr [this message]
2013-04-12 19:35 ` Mr. Herr
2013-04-14 9:31 ` AW: " Gerd Stolpmann
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