[Rd] Internet access and R CMD make check-devel

Thomas J. Leeper tho@j|eeper @end|ng |rom gm@||@com
Mon Oct 5 18:48:21 CEST 2020

I am trying to install R on CentOS (either 7 or 8, behavior is the
same) in an environment behind a firewall and while I am able to run:

R CMD make check

I am unable to run:

R CMD make check-devel

These latter tests fail. The failure occurs in the internet access
if() conditional statement in these two tests:


In my environment, nsl("cran.r-project.org") returns a valid, non-null
value but subsequent commands in those test files do not successfully
access the internet.

I'd like to be able to run the full test suite given I am building
from source. I'm wondering if it's possible to make these conditionals
more strict so that the conditional tests internet access in a manner
more similar to how internet access is used in the tests. Would this
be possible? Or, make tests that require internet access into a
distinct `check-internet` or similar?

As an additional reference, the same conditional statement appears to
also be used in these other tests:



Thomas J. Leeper

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