On 24.01.2018 12:00, Martin Maechler wrote:
Uwe Ligges <lig...@statistik.tu-dortmund.de>
on Wed, 24 Jan 2018 11:23:50 +0100 writes:
> On 24.01.2018 03:20, Dirk Eddelbuettel wrote:
>>
>> I am going in circles here and have lost my way. I used to have means to
>> build R-devel (still do) and use it for local testing (no longer do).
>>
>> - Fresh build of R-devel
>> - One entry in .libPaths()
>> - I can install Rcpp, it ends up in that .libPaths()
>> - I can load
>> - With the _exact same settings_ starting R as R CMD check ... I fail on
>>
>> ** preparing package for lazy loading
>> Error : package ‘Rcpp’ was installed by an R version with different
internals; \
>> it needs to be reinstalled for use with this R version
> I guess you actually pick up anotehr version of R.
> Carefully check what is on your PATH and perhaps some Renviron files
> that may be around?
> Best,
> Uwe
Yes exactly. I've been bitten many times by similar issues in
recent weeks.
The problem here is that we have so many environment variables
governing the process.
I think I have mostly solved this by the following "strategy"
(Linux/Unixy bash-like shell):
------------------------------------------
## To check: one of
env | grep '^R_'
env | grep -E '^_?R_'
## Before running:
unset R_PROFILE R_ENVIRON R_LIBS
export R_CHECK_ENVIRON=~/.R/check.Renviron_Rdevel
## where my check.Renviron* basically only sets R_LIBS
---------
[In an ideal world, R functions involved here would *not* start
other R processes... but that seems necessary for other good reasons]
The simplest one is that R can crash during a check, then you would end
uo without message where that happened, it is hard to compare timings etc.
In the real but not so ideal world, I need even a wrapper around R CMD
check to have control about the process to be able to kill it
programmaically etc.
Best,
Uwe
Martin
>>
>> which is both false (see above) and irritating.
>>
>> Does anybody have any tips, working guidelines or interpretations of
the ever
>> changing manuals (which charmingly never document what changes) ?
>>
>> Dirk
>>
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