[Rd] Rcmd build 32bit-only package on win7 64 bit platform?

[Hans-Peter Suter]

Is it possible to suppress compiling for the x64 arch when doing 'Rcmd
build <mypkg>? Such that the pre-compiled package for binary
distribution only contains a 'lib/i386/mypkg.dll'.

For CHECK (and also INSTALL) there is a '--no-multiarch' argument, but
I didn't find something similar for build.

Otherwise, I suppose, I could
- handle the problem in Makevars or Makefile or
- build the shlib manually and put it at the correct place or
- provide a placeholder library with C (my code is Delphi, 64bit
should/will come next year)
- (build inside a XP32bit VM)

Are there any other packages which are 32bit only (for now)?

Thanks for any advise,
Hans-Peter