[Rd] R-1.2.3: a small suggestion (PR#961)

Thomas Lumley tlumley@u.washington.edu
Fri, 1 Jun 2001 08:11:33 -0700 (PDT)

On Fri, 1 Jun 2001, Kurt Hornik wrote:

> I had asked about multiple version (and also platform) support several
> times during the past few years, and had always been told that this was
> not necessary.  So why does this keep coming up?
> One can add a version layer, but one has to do this right.  Patterning
> after the Emacs model is wrong.  Binary incompatabilities were pointed
> out, so
> 	PREFIX/lib/R/site
> is not good enough.  Emacs has added [the equivalent of]
> 	PREFIX/lib/R/site/VERSION
> but that requires external control of version dependency at install
> time.  We actually have the required info through the DESCRIPTION db,
> hence could take care of this.

Are you sure we have the right info? We know if a package is
source-incompatible with old versions of R but we may not know if it is
binary-incompatible with new versions.  I was surprised to find that
survival seems to be binary-incompatible between 1.2.3 and 1.3.0 -- at
least, several bugs went away when I recompiled with pre1.3.0


Thomas Lumley			Asst. Professor, Biostatistics
tlumley@u.washington.edu	University of Washington, Seattle

r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-devel-request@stat.math.ethz.ch