lock a package to specific R version

On 25.10.2011 11:42, Mehmet Suzen wrote:

Hi,

I was wondering if it is possible to lock a package to a specific
version of R. Dependency attribute in the package DESCRIPTION
only accepts>= AFAIU
(http://cran.r-project.org/doc/manuals/R-exts.html#fn-3 )

Any work around?

Intervals are possible., and you can restrict them to one version as follows:

Depends: R (>= 2.13.2), R (<= 2.13.2)

Or even use ==

The point of the footnote is that install.packages() will download a 
package only checking any >= requirements (and I suspect it will then 
install a binary version of a package).  R CMD INSTALL will not 
install it from the sources, and library() will not load it.

I don't see why you would want to do this: why would a package work 
with 2.13.1 and not 2.13.2, or 2.13.2 and not 2.14.0?  Ranges may make 
sense.

Uwe Ligges

Thanks,

Mehmet
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