Re: [Caml-list] Problems with conf-ncurses

[Leonardo Laguna Ruiz <modlfo@gmail.com>]

Thank you for your answers,

I’ll create the pull request to try to fit this. I hope there are not many packages with this distro specific limitations. It would be nice if I can take any generic distro with pkg-config and being able to install these ocaml packages. At least the system should try a few know combinations in my generic linux distro.  


Leonardo

> On 30 Aug 2016, at 12:16, Gabriel Scherer <gabriel.scherer@gmail.com> wrote:
> 
> This is an issue with the opam metadata of the conf-ncurses package
> not knowing about your system. conf-* packages mark dependencies on
> libraries outside the OCaml ecosystem, and we manually indicate for
> each system the system-level packages that correspond to this
> dependency.
> 
> You can see the current metadata for the conf-ncurses package with
> 
>  opam show --raw conf-ncurses
> 
> or by visiting
> 
>  https://github.com/ocaml/opam-repository/blob/master/packages/conf-ncurses/conf-ncurses.1/opam
> 
> To fix your issue, you could clone the opam-repository github
> repository, modify this metadata to add a "depexts" entry for your
> system (with the name of the ncurses-devel package on your
> distribution), and send the pull-request upstream. To know which name
> to use on your system, call (this may require running "opam install
> depext" if the depext plugin is not installed on your system)
> 
>  opam depext --flags
> 
> My output is
> 
>  # Depexts flags detected on this system: x86_64 linux fedora
> 
> so I use the "fedora" flag in the depext entry.
> 
> Note: if you encounter further issues of this kind, the best place to
> report them would be
> 
>  https://github.com/ocaml/opam-repository/issues
> 
> On Tue, Aug 30, 2016 at 10:36 AM, Leonardo Laguna Ruiz <modlfo@gmail.com> wrote:
>> Hi,
>> 
>> I tried to install a few packages in one of my computers and they fail because conf-ncurses fails to install. I’m using linux, the distro called solus, and I’m pretty sure that I have installed nurses (libraries and development files).
>> 
>> When conf-ncurses 1 fails to install it suggest using `opam depext conf-ncurses.1’ which fails with the message:
>> 
>> 
>> OPAM plugin depext is not installed. Install it on the current switch? [Y/n] y
>> The following dependencies couldn't be met:
>>  - lwt -> conf-ncurses
>> Your request can't be satisfied:
>>  - conf-ncurses is not available because your system doesn't comply with os = "darwin" | os = "freebsd" | os = "netbsd" | os = "openbsd".
>> 
>> No solution found, exiting
>> 
>> Is there any way I can fix this and get my computer working again?
>> 
>> Thank you in advance,
>> 
>> Leonardo
>> 
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