On 11/11/2009 8:03 PM, Cameron Bracken wrote:
On Wed, Nov 11, 2009 at 5:15 PM, Duncan Murdoch <murd...@stats.uwo.ca> wrote:
On 11/11/2009 6:49 PM, Cameron Bracken wrote:
On Wed, Nov 11, 2009 at 4:36 PM, Duncan Murdoch <murd...@stats.uwo.ca>
wrote:
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.
I figured that would be the case.
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.
Hey, that is great! I thought about doing this but decided arbitrarily
that it would be too hard. Do I just plop a copy of the ming source
in the src/ directory of my package (then adjust Makevars
accordingly)? Did you run the whole ming configure script as well?
I just ran make. I don't think there is any configure script.
I'd probably put their stuff in a subdir of src, just to keep it cleanly
separated from yours. This also gives you the option of *not* compiling it
on systems like Linux and MacOS that already have it. Then make up a
Makevars.win file that builds it as a static or dynamic lib on Windows and
links to it, and a Makevars file that just links to it on other platforms.
(You might want to do a static compile on the other systems just so you're
protected against version changes.)
Duncan Murdoch
Thanks for the feedback, I agree that would be the easiest and
preferable way. But which version of ming are you using that only has
a makefile? The version I need (0.4.0 beta5) has a fairly involved
configure script. I would have to pick out the components I need for
my package and create a custom makefile for it to be easily usable
(which I may end up doing, thank goodness for open source).
I was looking at ming-0.2a. It might not be the same library at all!
Duncan Murdoch
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