R devel - May 2005 - Specifying dependency on a specific patched version

Is there a way to specify a package dependency in the Depends:
field of the DESCRIPTION file for a specific patched version of a 
specific OS?

For example, today's Windows patched release (2005-05-14) has
the capability of changing the time zone within R on Windows
via Sys.putenv(TZ="GMT") but prior patched versions do not have this.
Is there some way of ensuring that the 2005-05-14 or later release is used
if on Windows only?

Gabor Grothendieck wrote:
> Is there a way to specify a package dependency in the Depends:
> field of the DESCRIPTION file for a specific patched version of a 
> specific OS?
> 
> For example, today's Windows patched release (2005-05-14) has
> the capability of changing the time zone within R on Windows
> via Sys.putenv(TZ="GMT") but prior patched versions do not have
this.
> Is there some way of ensuring that the 2005-05-14 or later release is used
> if on Windows only?

No.

Uwe Ligges
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