[Rcpp-devel] grDevices issue with RInside

| hi dirk,
| 
| i've got it!
| 
| Rst.rhome is assigned here from getenv() (and no copy is made):
| 
| https://github.com/eddelbuettel/rinside/blob/d94b999b1f9a5b9a7c1eaefc89abe40ea0d2d4d2/src/RInside.cpp#L164
| 
| It makes it's way down inside of R, and is assigned to R_Home:
| 
| https://github.com/wch/r-source/blob/3234382b4b4632b114fc8400885300b04e4934a0/src/gnuwin32/system.c#L724
| 
| strings returned by getenv() are invalidated by subsequent calls to 
| getenv().
| 
| the offending code exists in a #ifdef _WIN32 which is why it's windows only.
| 
| i'll have a PR for you shortly.

Seeing it now, thanks!
 
| this has been a bit of an epic.

I can imagine.  Windows embedding is simply less well used which is probably
why you were the first to find this particular banane peel ...

Dirk

http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org