[erlang-questions] "dynamic" include?

Roberto Saccon <>
Fri Oct 26 02:43:56 CEST 2007


when you use CEAN and all your third party code is in CEAN, then you
have a bit less trouble with location of headerfiles.

You could also programmatically set your include directories in the
Makefile or use an Escript to compile, then you don't have to hardcode
those paths in your src files.


On 10/25/07, YC <> wrote:
> Hi all -
>
> is it possible to include programmatically generated path?
>
> i.e.
>
> instead of
>
> -include("../../foo.hrl").
>
> write
>
> -include(dynamic_determine("foo.hrl")).
>
> I suspect not (the above don't compile for me), but the idea is that you
> might not know for sure where the file would be, and rely on the vm to
> figure it out via the code:which() mechanism.  For example, yaws can be
> installed locally or globally, and if you need access to yaws hrl files, you
> can't depend on it exist @ a particular location (assuming your code branch
> has no relation with yaws' code branch), and it's a pain if one has to
> modify the source if the locations differ.
>
> What's the best practice to deal with such situation?  Any thoughts are
> appreicated, thanks.
> yc
>
>
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> 
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>


-- 
Roberto Saccon
http://rsaccon.com



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