On 27/02/2017 09:30, Peter Simons wrote:
Hi,

I tried compiling the latest pre-release for R 3.3.3 for the NixOS Linux
distribution [1], but the build fails during the "make check" phase
because of the following 2 issues:

Hmm, R-devel (your subject line) is not a pre-release of R 3.3.3: it is 'R Under development' for what is planned as R 3.4.0. Pre-release tarballs for 3.3.3 are things like R-rc_2017-02-26_r72260.tar.gz (and were previously labelled R-beta).

Your first point only occurs in R-devel, and was something already reported and under investigation. Note that test does not actually depend on network access: it depends on having an accessible CRAN mirror. The latter could be local (and is on the CRAN check farm, for example). So we have been working on a more sophisticated condition to run that test.

There are lots of possible check environments: it is very time-consuming to check them all and reasonable coverage is only attempted once a pre-release reaches 'alpha' status -- 3.4.0 has not done so but is planned to be in late March.

I have just re-checked on Linux, and R 3.3.3 RC passed its checks without Internet access (which is checked for where needed).

I also re-checked 3.3.3 RC without recommended packages and got the expected messages about incomplete testing but no failures except in 'make check-recommended' (expected!).

Our posting guide does ask you to include the output of sessionInfo(): that would have avoided the version confusion (and might even have alerted you to it).


1) The "tools" test in "tests/Examples" requires network access, which
   it doesn't have in our build environment. Therefore, it fails as
   follows according to "tools-Ex.Rout.fail":

   | [...]
   | > set.seed(11)
   | > ## End(Don't show)
   | > pdb <- CRAN_package_db()
   | Warning in url(sprintf("%s/%s", cran, path), open = "rb") :
   |   URL 'http://CRAN.R-project.org/web/packages/packages.rds': status was 
'Couldn't resolve host name'
   | Error in url(sprintf("%s/%s", cran, path), open = "rb") :
   |   cannot open the connection to 
'http://CRAN.R-project.org/web/packages/packages.rds'
   | Calls: CRAN_package_db -> as.data.frame -> read_CRAN_object -> gzcon -> url
   | Execution halted

   I'm wondering whether it would be possible to extend the test suite
   with a configure-time flag that disable tests which depend on network
   access? My experience is that most modern Linux distributions run
   their builds in a restricted environment and therefore will run into
   trouble if the suite assumes that it can access the Internet.

2) When R is compiled with the --without-recommended-packages flag
   (which is our preferred configuration), the "base" test in
   "tests/Examples" fails, apparently because it depends on MASS. I'm
   citing from "base-Ex.Rout.fail":

   | >  ## The string "foo" and the symbol 'foo' can be used interchangably 
here:
   | >  stopifnot( identical(isNamespaceLoaded(  "foo"   ), FALSE),
   | +             identical(isNamespaceLoaded(quote(foo)), FALSE),
   | +             identical(isNamespaceLoaded(quote(stats)), statL))
   | >
   | > hasM <- isNamespaceLoaded("MASS") # (to restore if needed)
   | > Mns <- asNamespace("MASS") # loads it if not already
   | Error in loadNamespace(name) : there is no package called 'MASS'
   | Calls: asNamespace ... tryCatch -> tryCatchList -> tryCatchOne -> 
<Anonymous>
   | Execution halted

I hope this helps!

Best regards,
Peter



[1] http://nixos.org/

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--
Brian D. Ripley,                  rip...@stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford

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