[rkward-devel] Backend forking for tikzDevice?

[Thomas Friedrichsmeier]

On Thursday 06 October 2011, meik michalke wrote:
> hi,
> 
> am Donnerstag 06 Oktober 2011 (10:49) schrieb Matthieu Stigler:
> > I just saw in recent versions the "backend has forked " message, but
> > this happens even if no special parallel taks is launched but witha
> 
> > single code:
> i experienced the same thing yesterday, the fork-message appeared when i
> was simply building packages (and i don't recall having parallel tasks in
> roxyPackage).

As it turns out, forking is also used whenever
   system (..., intern=TRUE)
is called. Unfortunately, I cannot see a way to differentiate this (non-
problematic) case from the more tricky case of forking in order to really have 
two parallel R processes. So I have removed the warning (but a debug message 
is logged). Let's hope that the message was somewhat overcautious in the first 
place, and no ill side-effects occur.

Regards
Thomas
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