Re: [Caml-list] ocamlfind on mingw: .exe extensions missing in findlib.conf

[Gerd Stolpmann <info@gerd-stolpmann.de>]

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Am Samstag, den 24.10.2015, 10:21 +0000 schrieb Soegtrop, Michael:
> Dear Ocaml users,
> 
>  
> 
> I found that ocamlfind (findlib) builds fine for mingw on Cygwin, but
> it doesn’t work. The issue is that the .exe extensions are missing in
> the findlib.conf file. This has the effect that most calls to
> ocamlfind end up in an error message like:
>
> $ ocamlfind ocamlc
> 
> Uncaught exception: Unix.Unix_error(20, "create_process",
> "ocamlc.opt")

This is surprising. Windows used to add .exe if missing, so far the
command is looked up via PATH (see
https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425(v=vs.85).aspx but I admit this page is highly confusing).

Gerd


> 
>  
> 
> This is easy to fix with a text editor or sed. A more generic fix
> would be to use whereis/which/where to find ocamlc and friends but
> nothing is really satisfactory
> 
>  
> 
> $ whereis ocamlc.opt
> 
> ocamlc: /cygdrive/d/bin/ocamlmgw64/bin/ocamlc.exe
> 
>  
> 
> Finds ocamlc instead of omcalc.opt
> 
>  
> 
> $ which ocamlc.opt
> 
> /cygdrive/d/bin/ocamlmgw64/bin/ocamlc.opt
> 
>  
> 
> Doesn’t show the extension
> 
>  
> 
> $ where ocamlc.opt
> 
> D:\bin\ocamlmgw64\bin\ocamlc.opt.exe
> 
>  
> 
> Works but is a windows command.
> 
>  
> 
> Does someone have an idea how to get the executable names in an
> elegant and platform independent way?
> 
>  
> 
> Best regards,
> 
>  
> 
> Michael
> 
>  
> 
> 
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> 
> 

-- 
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Gerd Stolpmann, Darmstadt, Germany    gerd@gerd-stolpmann.de
My OCaml site:          http://www.camlcity.org
Contact details:        http://www.camlcity.org/contact.html
Company homepage:       http://www.gerd-stolpmann.de
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