Sorry to disappoint you, but there is no multicore support in OCaml, yet.
At least, in a form which which is suitable for beginners. (Cause you can
span a thread from C, or use a very-very devel branch which supports it)

As for ocaml-top you either switch to a version where it compiles (4.02.3)
or wait until ocp-index get fixed.


În joi, 12 mai 2016 la 02:19, Andrew Shi-hwa Chen <andrewsw@gmail.com> a
scris:

> I'm new to OCaml and trying to get started by getting ocaml-top installed.
>
> I really want to use 4.03.0 because I really want to have all my
> experience with OCaml be with multicore OCaml (I had a list of criteria
> that I was looking for in my next language, and OCaml was almost perfect
> until multicore support came along - when it came along, that made it
> perfect and worth overcoming the inertia of trying to switch from my
> current language of daily use).
>
> Unfortunately, ocaml-top has ocp-indent as a dependency, and when I try to
> install ocp-indent, I get the following error. If this is due to a known
> issue, let me know and I'll wait for a fix. If this is due to some issue
> with my build environment, please direct me to appropriate resources for
> figuring out how to remedy this problem.
>
> Furthermore, if there are good resources or tips for helping to determine
> when a problem is a build environment issue as opposed to an issue with an
> existing package that just needs to be updated, please let me know what
> they are.
>
> Thanks,
> Andrew
>
>
>
> #=== ERROR while installing ocp-index.1.1.4
> ===================================#
> # opam-version 1.2.2
> # os           darwin
> # command      make
> # path         /Users/chenan/.opam/4.03.0/build/ocp-index.1.1.4
> # compiler     4.03.0
> # exit-code    2
> # env-file
> /Users/chenan/.opam/4.03.0/build/ocp-index.1.1.4/ocp-index-13029-a00279.env
> # stdout-file
> /Users/chenan/.opam/4.03.0/build/ocp-index.1.1.4/ocp-index-13029-a00279.out
> # stderr-file
> /Users/chenan/.opam/4.03.0/build/ocp-index.1.1.4/ocp-index-13029-a00279.err
> ### stdout ###
> # ocp-build -init
> # ocp-build ocp-index-lib
> ### stderr ###
> # [...]
> # [33.1] '/Users/chenan/.opam/4.03.0/bin/ocamlc.opt' '-g' '-w'
> '+1..39-4-9-37-40' '-safe-string' '-bin-annot' '-c' '-o'
> '_obuild/7ee5d0cd3cfec6c5ba81000630d4c060/indexOut.cmo' '-I'
> './_obuild/ocp-index-lib' '-I' './src' '-I'
> '/Users/chenan/.opam/4.03.0/lib/ocp-indent/utils' '-I'
> '/Users/chenan/.opam/4.03.0/lib/ocaml/compiler-libs' '-I'
> '/Users/chenan/.opam/4.03.0/lib/ocp-indent/lexer' 'src/indexOut.ml'
> #
> # File "src/indexOut.ml", line 184, characters 17-25:
> # Error: This pattern matches values of type 'a * 'b * 'c
> #        but a pattern was expected which matches values of type
> #          Outcometree.out_val_decl
> #
> # Error:
> # Target _obuild/ocp-index-lib/indexOut.cmo not built
> # make: *** [ocp-index-lib] Error 2
>
>