On Sunday 31 July 2005 10:49 pm, Andreas Schwab wrote:
> > MY_LANGUAGE_SET([`cd lang; echo ?? | tr " " ,`])
> >
> > and have the result of the command substitution
> >
> > `cd lang; echo ?? | tr " " ,`
> >
> > appear in the `configure --help' output.
>
> This won't do the right thing if configure is executed outside the source
> directory (for buiding in a separate directory).
I realise this; perhaps I oversimplified the example, which was intended
only to illustrate the concept. The real code would obviously need to refer
back to ${srcdir}, to circumvent this limitation.
> > Given these limitations, can anyone suggest a better mechanism for
> > achieving this objective?
>
> Use esyscmd to interpolate the output of the command at configure creation
> time.
But does that really offer any advantage over using a shell script to do the
same thing? It still performs the substitution at the time when configure is
generated, rather than when it is run.
Regards,
Keith.
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