Re: [Rd] Building package under windows which links against a cygwin library

From: Duncan Murdoch <murdoch_at_stats.uwo.ca>
Date: Wed, 11 Nov 2009 18:36:56 -0500

On 11/11/2009 4:41 PM, Cameron Bracken wrote:
> I am developing a package
> (http://r-forge.r-project.org/projects/swfdevice/) which links against
> the ming C library. The package builds fine under Mac OS X and Linux.
> I am really out of my element on windows, but I know there is a cygwin
> package for libming.
>
> My question is, does anyone have advice/examples on linking R packages
> against cygwin libraries? Is this even possible? How would I go
> about writing a configure.win script to do this?

I suspect it's not going to work. Linking to any Cygwin library will pull in the rest, and I would guess that will conflict with something else in R, which does not use Cygwin.

What you could do is include a copy of the source to the ming library, and get the regular R compilers to compile it. I just tried, and it compiled without errors (though there were a few warnings). Then you can write your R interface to it, and everything may just work.

The tricky bit might be getting the Makevars or Makefile right, but theirs is really simple, so that shouldn't be so bad.

Duncan Murdoch



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