Re: [Caml-list] bytecode: ./prog vs ocamlrun ./prog

[oliver <oliver@first.in-berlin.de>]

and with

 "which ocamlrun"

you get the info, which one is used.

Ciao,
   Oliver


On Sun, Dec 18, 2011 at 01:30:25PM +0900, Jacques Garrigue wrote:
> This basically means that you have 2 ocamlrun on this machine.
> ./prog calls ocamlrun with a fixed path, but the 1st ocamlrun is your
> path is an incompatible one.
> Do "head -1 prog" to see the right ocamlrun.
> 
> Jacques Garrigue
> 
> -----
> From: Dmitry Grebeniuk <gdsfh1@gmail.com>
> 
> Hello.
> 
>   The OCaml manual states that executing bytecode program
> with "./prog" and "ocamlrun ./prog" should give the same result
> (in simple case, without options and environment modifications).
>   However in my case the result is different: "./prog" executes
> well, but "ocamlrun ./prog" gives
> "Fatal error: unknown C primitive `unix_dup'".
> 
>   But I have no good minimal case (other small unix.cma-dependent
> programs run fine both ways), and I can't show the full sources due
> to my contract with employer.
>   I suspect this issue can give me additional headache in the future,
> so I prefer to solve it now.
> 
>   How can I find the source of this problem?
> 
>   What I have checked for now:
> - host OS is linux (gentoo, fresh enough)
> - the host contains (and contained ever) only one OCaml installation
>   (3.11.2), and I can't install more recent OCaml versions
>   system-wide (and I want this program to work under system-wide
>   3.11.2 anywhere)
> - ocaml toplevel doesn't fail on "#load "unix.cma"" and on calls to
>   functions of Unix module
> - this system doesn't provide ocamlobjinfo, so I can't read its output
> - the program is built with ocamlbuild, without custom myocamlbuild.ml
>   and other C-specific options, however some libraries may use
>   C bindings (I'll check this if it is important)
> - I've tried to set environment variable LD_DEBUG=libs and run
>   both cases: "ocamlrun ./prog" output is pasted to
>   http://paste.in.ua/3499/raw/ , "./prog" output is pasted to
>   http://paste.in.ua/3500/raw/ , but I don't understand where
>   the problem is, even after meditation on these logs
> 
>   What should I do to diagnose this problem?
> 
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