#ocaml on 2020-03-31 — irc logs at freenode.irclog.whitequark.org

2019-09-26 12:04 adrien changed the topic of #ocaml to: Discussions about the OCaml programming language | http://www.ocaml.org | OCaml 4.09 release notes: https://caml.inria.fr/pub/distrib/ocaml-4.09/notes/Changes | Try OCaml in your browser: http://try.ocamlpro.com | Public channel logs at http://irclog.whitequark.org/ocaml

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17:17 <Anarchos> Is it possible to install opam with the local ocaml compiler ?

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17:17 <theblatte> Anarchos: it should be, it used to be called the "system" compiler

17:18 <Anarchos> so i can do "opam switch system" ?

17:22 <theblatte> looks like it's "opam switch ocaml-system"

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17:22 <theblatte> "opam switch create ocaml-system"

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17:34 <Anarchos> theblatte i got : unmet availability conditions, e.g. sys-ocaml-version = "4.10.0" and my version is 4.11.0+dev0-2019-10-18. Why isn't it compatible ?

17:36 <theblatte> Anarchos: no idea, sorry. did you get that error message running "opam switch create ocaml-system"? what's "sys-ocaml-version"? where is the ocaml version "4.11.0+dev0-.." coming from?

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17:37 <Anarchos> i just run ocaml and copied the version stated in the preambule

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17:39 <octachron> Anarchos, are you trying to install a development version of the compiler?

17:39 <Anarchos> octachron latest version from github

17:42 <octachron> For the latest version, you can just use `opam switch create --repo=default,beta=git+https://github.com/ocaml/ocaml-beta-repository.git 4.11.0+trunk`

17:44 <octachron> if you want to use the version on your disk, you can use `opam switch create name --empty && opam install .`

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17:49 <Anarchos> octachron no i can't use straight compiler from github, i have to modify it a bit to compile on my architecture

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17:55 <octachron> Then, you need to use the second method

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18:18 <Anarchos> octachron which second method ?

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18:43 <octachron> Anarchos, the "opam init --empty" method, which is described in HACKING.adoc

18:44 <Anarchos> octachron but will i be able to install merlin through opam afterwards ?

18:48 <octachron> No, but only because merlin requires specific support for each compiler version. Other packages should be installable.

18:49 <Anarchos> octachron i am on a rare exotic architecture .... that's why i need to tweak the compiler (i586-pc-haiku)

18:52 <octachron> Are you planning to use the compiler or hack on the compiler?

18:53 <octachron> If it is the first, it would be much better to patch the tree at the tag 4.10.0 rather than the dev version of 4.11.0

18:59 <Anarchos> ok

18:59 <Anarchos> octachron the fix is very easy : a-lnetwork to add in configure.ac and two %d format to transform into %ld in ocamltest

19:00 <Anarchos> octachron so how to patch the tree at tag 4.10.0 ? with opam ? Or in my local clone of the ocaml git repo ?

19:00 <Armael> octachron: why don't we upstream the fix if it's an easy one

19:01 <Armael> well I guess Anarchos would have to submit a pull request

19:02 <octachron> If the fix is easy, it would be a good idea.

19:02 <octachron> Anarchos, in your local clone, use "git checkout 4.10.0"

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19:30 <Anarchos> Armael i will try to figure that out

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