[Omake] Passing full target paths to compilers

[Benjamin Pierce]

Thanks, Aleksey -- it's useful to understand why what I tried was not  
working.

>> Since my project involves OCaml files in several directories, I  
>> want  to invoke the OCaml compiler with the full absolute pathname  
>> of each  source .ml file, so that error messages will be printed  
>> in a way that  emacs can interpret, no matter where I do the  
>> compilation from.
>
> Are full paths really necessary for that? OMake understands make's  
> "-w" command-line option, and I was under impression that this is  
> sufficient (I do not use emacs myself, so I am not 100% sure).

I think the compilation mode that I use just looks at the line  
containing the error message and grabs the filename from there.

     - Benjamin