Re: [Caml-list] findlib/ocamldbi

[Gerd Stolpmann <info@gerd-stolpmann.de>]

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Am Dienstag, den 27.06.2006, 00:41 +1200 schrieb Jonathan Roewen:
> Hi,
> 
> Since I'm not sure whether this is an ocamldbi or a findlib problem, I
> thought it best to post my problem here.
> 
> I'm trying to use ocamldbi using the mysql bindings.
> 
> so I'm testing in the toplevel, and get something of the sort:
> 
> # #use "topfind";;
> ....
> # #require "dbi.mysql";;
> No such package: postgres - Required by package "dbi.postgres"
> # #require "dbi";;
> No such package: postgres - Required by package "dbi.postgres"
> 
> This dependency seems to be a phantom, as the dbi module itself
> doesn't depend on any of the client implementations...

Exactly.

The META file should include an exists_if directive to express that.
Example attached.

If you are using Godi, I recently updated the package.

Gerd
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Gerd Stolpmann * Viktoriastr. 45 * 64293 Darmstadt * Germany 
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name="ocamldbi"
version="0.9.11"
description="OCaml Database Independent Library"
archive(byte) = "dbi.cma"
archive(native) = "dbi.cmxa"
requires = "num"

package "mysql" (
  requires = "dbi,mysql"
  archive(byte) = "dbi_mysql.cmo"
  archive(native) = "dbi_mysql.cmx"
  exists_if = "dbi_mysql.cmo"
)

package "perl" (
  requires = "dbi,perl"
  archive(byte) = "dbi_perl.cmo"
  archive(native) = "dbi_perl.cmx"
  exists_if = "dbi_perl.cmo"
)

package "postgres" (
  requires = "dbi,postgres,pcre"
  archive(byte) = "dbi_postgres.cmo"
  archive(native) = "dbi_postgres.cmx"
  exists_if = "dbi_postgres.cmo"
)

package "postgresql" (
  requires = "dbi,postgresql,pcre"
  archive(byte) = "dbi_postgresql.cmo"
  archive(native) = "dbi_postgresql.cmx"
  exists_if = "dbi_postgresql.cmo"
)

package "sqlite" (
  requires = "dbi,sqlite"
  archive(byte) = "dbi_sqlite.cmo"
  archive(native) = "dbi_sqlite.cmx"
  exists_if = "dbi_sqlite.cmo"
)