[R-SIG-Mac] Yosemite and R
h.wickham at gmail.com
Tue Oct 21 15:39:35 CEST 2014
On Mon, Oct 20, 2014 at 4:01 PM, David Winsemius <dwinsemius at comcast.net> wrote:
> On Oct 20, 2014, at 8:21 AM, Hadley Wickham wrote:
>>> I have been running Yosemite for quite a while and didn't see any issues so far. Given how little changed in Yosemite I don't expect any changes to the Mavericks build at this point (i.e. Mavericks will remain the base target for all recent OS X builds).
>> At RStudio, we've seen one problem - the PATH is not passed along to
>> sub-processes, e.g. these two functions return different values:
>> system("echo $PATH")
> I seem to remember discussions on R-SIG-Mac that system("echo $PATH") gets passed to the bash environment which is not the same as the R environment. It is expected that the $PATH variable is different in the two environments.
No, it is not. It is expected that the path in the terminal be
different to the path in R, it is _not_ expected that the path in R be
different to the path in a subprocess started by R.
(Well it is now expected, because this appears to be a new security
feature in Yosemite)
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