Re: [Caml-list] Problem with gsl installation with opam

[Markus Mottl <markus.mottl@gmail.com>]

Try e.g. "pkg-config --cflags --libs gsl".  You can then test whether
the returned flags are good for compiling + linking a test application
in C.

Regards,
Markus

On Tue, Mar 1, 2016 at 12:25 AM, Johan Mazel <johan.mazel@gmail.com> wrote:
> pkg-config is installed.
>
> which pkg-config yields:
> /usr/bin/pkg-config
>
> How can I make sure that "the command will return meaningful compilation and
> linking flags for the required
> packages"?
>
> Regards,
> Johan
>
>
> 2016-03-01 14:01 GMT+09:00 Markus Mottl <markus.mottl@gmail.com>:
>>
>> Considering that two unrelated packages are apparently failing on the
>> exact same command (pkg-config), I assume that this is the source of
>> the problem.  Maybe `pkg-config` needs to be installed first, or the
>> right one needs to be in your path.  Just make sure the command will
>> return meaningful compilation and linking flags for the required
>> packages, and installation through OPAM should work.
>>
>> Regards,
>> Markus
>>
>> On Mon, Feb 29, 2016 at 11:50 PM, Johan Mazel <johan.mazel@gmail.com>
>> wrote:
>> > Hi
>> > First of all, I am not sure if I am writing this to the correct mailing
>> > list. If not, please tell me where should I send this.
>> >
>> > I am trying to install gsl
>> > (https://opam.ocaml.org/packages/gsl/gsl.1.19.1/)
>> > with opam.
>> > I previously installed OCaml 4.02.3 with opam.
>> >
>> > I get this message error when I do "opam install gsl":
>> >
>> > The following actions will be performed:
>> >   ∗  install conf-ncurses 1                   [required by ocamlfind]
>> >   ∗  install conf-gsl     1                   [required by gsl]
>> >   ∗  install ocamlfind    1.6.1               [required by gsl]
>> >   ∗  install gsl          1.19.1
>> > ===== ∗  4 =====
>> > Do you want to continue ? [Y/n] y
>> >
>> > =-=- Gathering sources
>> > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>> > [gsl] Archive in cache
>> > [ocamlfind] Archive in cache
>> >
>> > =-=- Processing actions
>> > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>> > [ERROR] The compilation of conf-gsl failed at "pkg-config gsl".
>> > [ERROR] The compilation of conf-ncurses failed at "pkg-config ncurses".
>> >
>> > #=== ERROR while installing conf-gsl.1
>> > ========================================#
>> > # opam-version 1.2.2
>> > # os           linux
>> > # command      pkg-config gsl
>> > # path         /home/jmazel/.opam/4.02.3/build/conf-gsl.1
>> > # compiler     4.02.3
>> > # exit-code    127
>> > # env-file
>> > /home/jmazel/.opam/4.02.3/build/conf-gsl.1/conf-gsl-10926-5f1023.env
>> > # stdout-file
>> > /home/jmazel/.opam/4.02.3/build/conf-gsl.1/conf-gsl-10926-5f1023.out
>> > # stderr-file
>> > /home/jmazel/.opam/4.02.3/build/conf-gsl.1/conf-gsl-10926-5f1023.err
>> >
>> >
>> > #=== ERROR while installing conf-ncurses.1
>> > ====================================#
>> > # opam-version 1.2.2
>> > # os           linux
>> > # command      pkg-config ncurses
>> > # path         /home/jmazel/.opam/4.02.3/build/conf-ncurses.1
>> > # compiler     4.02.3
>> > # exit-code    127
>> > # env-file
>> >
>> > /home/jmazel/.opam/4.02.3/build/conf-ncurses.1/conf-ncurses-10926-58c514.env
>> > # stdout-file
>> >
>> > /home/jmazel/.opam/4.02.3/build/conf-ncurses.1/conf-ncurses-10926-58c514.out
>> > # stderr-file
>> >
>> > /home/jmazel/.opam/4.02.3/build/conf-ncurses.1/conf-ncurses-10926-58c514.err
>> > ### stdout ###
>> >
>> >
>> >
>> >
>> > =-=- Error report
>> > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>> > The following actions were aborted
>> >   ∗  install gsl       1.19.1
>> >   ∗  install ocamlfind 1.6.1
>> > The following actions failed
>> >   ∗  install conf-gsl     1
>> >   ∗  install conf-ncurses 1
>> > No changes have been performed
>> >
>> > =-=- conf-gsl.1 troobleshooting
>> > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>> > => This package relies on external (system) dependencies that may be
>> > missing. `opam depext conf-gsl.1' may help you find the correct
>> > installation
>> > for
>> >    your system.
>> >
>> > =-=- conf-ncurses.1 troobleshooting
>> > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>> > => This package relies on external (system) dependencies that may be
>> > missing. `opam depext conf-ncurses.1' may help you find the correct
>> > installation
>> >    for your system.
>> >
>> > opam depext conf-gsl.1 yields:
>> > # Detecting depexts using flags: x86_64 linux debian
>> > # The following system packages are needed:
>> > #  - libgsl0-dev
>> > Not running as root, the following command will be run through "sudo":
>> >     apt-get install -qq -yy libgsl0-dev
>> > # OS packages installation successful
>> >
>> > opam depext conf-ncurses.1 yields:
>> > # Detecting depexts using flags: x86_64 linux debian
>> > # The following system packages are needed:
>> > #  - ncurses-dev
>> > Not running as root, the following command will be run through "sudo":
>> >     apt-get install -qq -yy ncurses-dev
>> > # OS packages installation successful
>> >
>> > If I rerun "opam install gsl", I get the same output as above.
>> > And no matter how many times I run "opam depext conf-gsl.1" and "opam
>> > depext
>> > conf-ncurses.1", no new packages are installed.
>> >
>> > libncurses5-dev is installed. Its version is 6.0+20160213-1.
>> > libgsl-dev is installed. Its version is 2.1+dfsg-2.
>> >
>> > As a side note, on my system compiler (4.02.3), libocamlgsl-ocaml-dev is
>> > installed and it has no dependency problems.
>> >
>> > Thank you very much for your time.
>> > Regards,
>> > Johan
>> >
>> >
>> >
>> >
>>
>>
>>
>> --
>> Markus Mottl        http://www.ocaml.info        markus.mottl@gmail.com
>
>



-- 
Markus Mottl        http://www.ocaml.info        markus.mottl@gmail.com