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Date: Tue, 25 Sep 2012 11:25:11 +0200
From: Fabrice Le Fessant <fabrissimo@gmail.com>
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Subject: Re: [Caml-list] Build OCaml on linux

Hi,

On 09/20/2012 09:50 PM, Zhi Han wrote:
> I found that the OCaml executable “bin/ocaml” is built by default as an
> bytecode on Linux, i.e., it requires ‘bin/ocamlrun” to run it. This has
> caused some issues in our group because our build process copies the
> executables from place to place. When the files are moved, the old
> location of the file is left in the first line of the bytecode file.
>
> However, same issues does not exists on Windows build. The files are
> built as executables and we can move these files around and still be
> able to execute them. I am wondering what are the switches that makes
> the Windows build work. Can somebody help me with that? Thanks,

On Linux, the first line of a non-custom bytecode executable indicates 
the full path to ocamlrun. You can create a relocatable executable using:

cat `which ocamlrun` `which ocamlc` > ocamlc.byte

On Windows, a small loader is included at the beginning of each bytecode 
executable, that locates 'ocamlrun' in the PATH, and run it on the 
executable, so the only requirement is to have ocamlrun in your PATH.

--Fabrice