[Rd] SystemRequirements’ field

[Paul Gilbert]

On 12-12-12 02:19 PM, Prof Brian Ripley wrote:
> On 12/12/2012 18:33, Paul Gilbert wrote:
>> Am I correct in thinking that the ‘SystemRequirements’ field in a
>> package DESCRIPTION file is purely descriptive, there are no standard
>> elements that can be extracted by parsing it and used automatically?
>
> No.
>

Where can I find more details?  The section "The DESCRIPTION file" in 
"Writing R Extensions" says only:

    Other dependencies (external to the R system) should be listed in
    the ‘SystemRequirements’ field, possibly amplified in a separate
    README file.

Thanks,
Paul