[Rd] Solution to (well known) problem with Rdconv.pm on Sun Solaris (PR#1093)

[Prof Brian D Ripley]

On Sun, 16 Sep 2001, Peter Kleiweg wrote:

> Kurt Hornik scribeva...
>
> > Not sure, from a theoretical point of view: we really only require Perl
> > version 5.  But if we think that anything less than 5.005 is too buggy

which I guess means we want an implementation of the Camel book 2nd edition
(`Programming Perl'), as Perl 5 is not a standard.  And my understanding is
that our code is legal by the Camel book, but 5.003 mis-parses it.

> > then let's go for the change.  (Something like
> >
> > 	${PERL} -e 'require 5.005 or exit 1'
> >
> > in PERL5_CHECK() of m4/R.m4?)
>
> I'm still using Perl 5.004, and R installs without problems.

Thanks for the confirmation.

> Wouldn't like to update Perl just to install a new version of R.
> Perhaps a warning message would be more appropriate than an
> error.

Would people notice a warning in all the output from configure?  This has
come up twice in the last year and a few more times before (with RedHat 5.2
as I recall).  We know that 5.003 is the one that caused the last two, so I
do think

${PERL} -e 'require 5.004 or exit 1'

would be a good idea.

B

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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