[R-SIG-Win] Question about rtools provided shell

[Jeroen Ooms]

On Fri, Apr 29, 2016 at 10:33 PM, Tim Keitt <tkeitt at utexas.edu> wrote:
> I am trying to be clever (whether that's a good idea is for another thread
> ;) and write an R script that downloads and builds the postgres libpq
> library when its not installed. (The idea is to call this script during
> source package installation.)

We do exactly this in the RPostgres package:
https://github.com/rstats-db/RPostgres . You want to check the
src/Makevars.win file and tools/winlibs.R. Feel free to steal/copy
whatever you need.