#ocaml on 2020-05-27 — 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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03:13 <HyperTables> oops I but a build error for core, any suggestions? https://paste.ee/p/X1ygC

03:17 <HyperTables> since these are just warnings is there a way to ignore them?

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04:03 <flux1> hmm, I think it would say if a warning is considered an error (due to use of -Werror)

04:05 <flux1> like if I don't compile (using gcc) with -Werror:

04:05 <flux1> foo.c:1:1: warning: control reaches end of non-void function [-Wreturn-type]

04:05 <flux1> vs if I do:

04:05 <flux1> foo.c:1:1: error: control reaches end of non-void function [-Werror=return-type]

04:10 <HyperTables> ah indeed the correct error from the logs is: linux_ext_stubs.c:33:10: fatal error: linux/limits.h: No such file or directory

04:12 <HyperTables> hm, in musl it appears that limits.h is not in linux/ directory but in toplevel instead ... should I attempt to just symlink it?

04:14 <flux1> maybe, but in my case those files come from different packages:

04:14 <flux1> libc6-dev:amd64: /usr/include/limits.h

04:14 <flux1> linux-libc-dev:amd64: /usr/include/linux/limits.h

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04:47 <HyperTables> well musl has only musl-dev package

04:49 <HyperTables> ah maybe I'm missing linux-libc-dev package after all and it has nothing to do with musl

04:55 <HyperTables> well apparently that's already installed :

04:56 <HyperTables> /usr/include/linux/limits.h - and I still get failed build

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08:50 * olle_ mooo

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16:35 <tinga> Hi. How can I reconfigure opam to use --disable-sandboxing ? (I can't get it to work with it in Debian.)

16:37 <theblatte> tinga: you need to either delete your ~/.opam and pass --disable-sandboxing when recreating it, or edit ~/.opam/config and delete the "wrap-*-commands" entries at the end (should be 6 lines)

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16:43 <HyperTables> huh? sandboxing should work with debian

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17:04 <d_bot> <Anurag> tinga: check if you have bubblewrap installed. Opam uses that for sandboxing on linux

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17:32 <tinga> d_bot, I have. I also did check that namespaces are enabled in the kernel.

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18:34 <tinga> theblatte, thanks, that seems to work!

18:34 <tinga> (the deleting the wrap commands)

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19:25 <olle> who's the best person to bother about js_of_ocaml (not drup)?

19:28 <Drup> depends on the question. If it's really technical, the bugtracker.

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19:50 <olle> kk

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20:25 <olle> Drup: but you're the only one in this channel that knows it good?

20:26 <olle> I want to write a blog article about type-safe websocket communication

20:30 <Drup> I doubt I'm the only one

20:36 <olle> ok, then i'll just put my question into the void :)

20:36 <olle> ok, so what if I want to improve the js_of_ocaml API by adding coding examples to each page?

20:36 <olle> github PR?

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21:06 <pigeonv> olle: yeah, I guess they'll be happy to review it ;)

21:08 <olle> hm!

21:08 <olle> well, such docs need to be maintained too

21:09 <olle> it's not a "write once and forget" situation

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21:58 <olle> [@@deriving json] is not statically checked when compiled?

21:58 <olle> i can insert a typo without getting an error message

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22:00 <olle> docs seem out of date? https://ocsigen.org/js_of_ocaml/3.6.0/manual/ppx-deriving

22:01 <olle> t_of_json is on my machine just of_json (with type t defined above)

22:02 <olle> doc also doesn't explain what Buffer.t is or where to find it

22:02 <olle> val t_to_json : Buffer.t -> t -> unit = <fun>

22:02 <olle> bah

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22:06 <companion_cube> Buffer is in the stdlib

22:08 <olle> companion_cube: thanks

22:08 <olle> right, the string thingy

22:08 <olle> you never know what modules has been opened or if it's global scope :d

22:08 <olle> have been*

22:09 <olle> code like this should really be included on the manual page, IMO: https://github.com/ocsigen/js_of_ocaml/blob/887507db1eb8efd779070cbedab3774098a52939/lib/deriving_json/tests/json_convert.ml

22:09 <olle> simple test to show how it's used

22:09 <olle> sorry for the commit hash

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