[R] make R package for windows on Linux

[Halldor Björnsson]

Hi,
I made a package on a linux box. All worked fine.
The package contains only R code (no C). I then wanted to make a zip 
file so that I could test the package on a windows machine. I have tried 
all the obvious ways to do this (and even some that are not!), but to no 
avail. The only  instructions I find about building packages for windows 
(e.g. mypkg.zip) seem to imply that the build be done on a windows machine.

Is there a simple way to make mypkg.zip under linux and then install it 
as a zip file on a windows machine?

Sincerely,
Halldor
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Halldor Bjornsson   (halldor at vedur.is)
Vedurstofa Islands (Icelandic Met. Office)
Bustadavegur 9, IS-150, Reykjavik, Iceland