Indeed, from
http://opam.ocamlpro.com/builder/html/report-last.html#ocaml-top,
ocaml-top.1.1.2 works on all versions >= 4.00 since yesterday.
I also upstreamed a patch to make ocp-index work on all 4.01,4.02 and 4.03.
--Fabrice

On Fri, May 13, 2016 at 8:22 AM Junsong Li <ljs.darkfish@gmail.com> wrote:

> Hi Andrew,
>
> A patch was delivered yesterday, so run `opam update` before `opam install
> ocp-indent`. You should be able to install without problem now.
>
>
> On Thu, May 12, 2016 at 10:55 PM, Junsong Li <ljs.darkfish@gmail.com>
> wrote:
>
>> Oops, just tried. I got the same compilation error, so it is not your
>> building environment.
>>
>> Since you just get started, I would recommend work on 4.02.3. Multicore
>> will be just one piece of the whole OCaml eco-system, so you can hone your
>> skills on the rest for now. And many tools still have problems with 4.03.0
>> (Batteries is released today for 4.03.0, yeah!) and certainly you don't
>> want to deal with these overhead when you just get started.
>>
>> Anyway, welcome to the list.
>>
>> On Wed, May 11, 2016 at 11:31 PM, vrotaru.md@gmail.com <
>> vrotaru.md@gmail.com> wrote:
>>
>>> 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
>>>>
>>>>
>>
>