building packages on Windows

Hi again.

I'm sure that this is really simple.

I'm trying to build a package on a Windows Vista machine.  I use
Rcmd build --binary test

but I get the "Please set TMPDIR to a valid temporary directory"

I tried TMPDIR=c:\temp
but to no avail.

I suspect you don't have write permission on c:\temp.

Windows systems typically have TEMP set to a writeable directory, and 
recent builds of R 2.6.0 will use that directory; in older versions you 
should be able to manually set TMPDIR to the same directory.

Duncan Murdoch