[R-SIG-Mac] Unload CRAN package and locally built package

[Simon Urbanek]

Gabor,

what OS X version are you using? More recent OS X versions have slightly different C++ ABI so you can't really mix C++ code compiled on SL and let's say Mavericks - hence the two different sets of binaries. That would be my guess here since igraph uses C++ and it involves destructor code on unloading...

Cheers,
Simon


On Sep 25, 2014, at 11:27 AM, Gábor Csárdi <csardi.gabor at gmail.com> wrote:

> Hi all,
> 
> I have a little mystery here, and ideas would be welcome.
> 
> I would like to unload the package igraph. The following works fine
> with the package downloaded from CRAN (Snow Leopard package):
> 
> install.packages("igraph")
> library(igraph)
> library(devtools)
> unload(inst("igraph"))
> 
> However, if I build the package myself on my machine, then it does not
> work any more and unloading hangs. I can press CTRL+C to get the R
> prompt back, but every command hangs again. This is my machine:
> 
> ~$ xcodebuild -version
> Xcode 5.1.1
> Build version 5B1008
> 
> ~$ Rscript -e 'sessionInfo()'
> R version 3.1.1 (2014-07-10)
> Platform: x86_64-apple-darwin10.8.0 (64-bit)
> 
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  base
> 
> It also hangs if I call dyn.unload() directly, instead of calling
> devtools; if I remove
> the igraph.so file from the package, then it works again, so it is
> definitely something with the .so file.
> 
> I know this is not much work with, but if you have any guesses, please
> let me know. Thanks,
> Gabor
> 
> _______________________________________________
> R-SIG-Mac mailing list
> R-SIG-Mac at r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>