On Thu, 18 May 2006, Prof Brian Ripley wrote:
> On Wed, 17 May 2006, Seth Falcon wrote:
>
>> Duncan Murdoch <[EMAIL PROTECTED]> writes:
>>> What is "config"?
>>
>> Usage: R CMD config [options] [VAR]
>>
>> Get the value of a basic R configure variable VAR which must be
>> among those listed in the 'Variables' section below, or the header
>> and library flags necessary for linking against R.
>>
>>> On Windows, it's assumed to be a Perl script stored in RHOME/bin and
>>> as the message says, there's no such thing.
>>
>> I guess this is a feature request then :-(
>> Any Perl experts keen on translating the shell script that does R CMD
>> config? I assume that is more or less what would be required.
>
> You also need to collect the information. Much of it is only relevant to
> building R on a Unix-alike: as the comment says
>
> ## <NOTE>
> ## The variables are basically the precious configure variables (with
> ## the R_* and MAIN_* ones removed), plus FLIBS and BLAS_LIBS.
>
> and they are extracted from ${R_HOME}/etc${R_ARCH}/Makeconf which does not
> exist on Windows.
>
> I think it is up to those who feel this is needed to contribute and
> maintain the code.
There are a few more problems:
1) The R for Windows build is relocatable, yet some of the answers
will need to be relative to the installation. Since R CMD knows where
R_HOME is, it could expand them out, or they could be in terms of R_HOME,
depending on the intended usage.
2) This will not work when cross-compiling.
3) In some cases the answers are not available, e.g. for TCLTK_CPPFLAGS
the headers are not usually installed. So somehow you would have to
ascertain if this was a source build or a binary distribution.
4) In some cases the answers depend on the MkRules file, which is an
optional install.
--
Brian D. Ripley, [EMAIL PROTECTED]
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 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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