Re: redo of 16845

[Peter Stephenson <pws@csr.com>]

Oliver Kiddle wrote:
> Peter wrote:
> > 
> > Mentioning it in the installation notes should be good enough, since
> > you can just set `link=no auto=no' in config.modules to avoid the
> > problem completely.  (Alternatively, we could set link=no in pcre.mdd.)
> > Either of these should avoid the need to remove it.
> 
> That doesn't help. configure has already decided that it needs to link
> against the pcre library because there is nothing in configure.ac which
> links the pcre setup to having the pcre module.

You're right, we probably need an explicit --enable for now.  Putting
that around the pcre checks and setting a flag to test in the .mdd
file should be good enough.

> Also, with a solution like that you suggest, people packaging for
> Linux distributions are possibly going to enable the pcre module.

That then creates a dependency of the zsh package on the pcre package.
That would be rather nasty regardless of the library availability.
There should certainly be no need to install pcre to get zsh working.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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