[R] update.packages() behavior

[Uwe Ligges]

Right R-3.2.2 has the new default, but requires, for example, libcurl 
suppport in order to be able to deal with https. See the reelase Notes. 
Otherwise, http works as before.

Best,
Uwe Ligges


On 07.09.2015 17:08, Bennet Fauber wrote:
> I recently compiled and installed R 3.2.2 on an RHEL 6.5 system.  Upon
> installation, I tried
>
> $ R-3.2.2/bin/R
>
> R version 3.2.2 (2015-08-14) -- "Fire Safety"
> ....
>
>> update.packages()
> --- Please select a CRAN mirror for use in this session ---
> Error in download.file(url, destfile = f, quiet = TRUE) :
>    unsupported URL scheme
> HTTPS CRAN mirror
> ....
> Selection: 14
> Warning: unable to access index for repository https://cran.mtu.edu/src/contrib
>
> However, choosing '18: (HTTP mirrors)', which then presents a
> different menu of download location choices, and selecting one of
> those seems to work, as does specifically naming a http URL, e.g.,
> update.packages(repos = "http://cran.mtu.edu/").
>
> Is the defaulting to the https URL-type a new behavior?  Did I miss
> including some library, so https is not included?
>
> My configure line was
>
> $ ./configure --prefix=/tmp/bennet/local --mandir=/tmp/bennet/local/man \
>     --enable-R-shlib --without-x \
>     --with-blas="-L/usr/cac/rhel6/intel-xe-2015/mkl/lib/intel64
> -lmkl_gf_lp64 -lmkl_sequential -lmkl_core"
>
> and I have
>
> $ rpm -qa | grep curl
> curl-7.19.7-46.el6.x86_64
> libcurl-devel-7.19.7-46.el6.x86_64
> libcurl-7.19.7-46.el6.x86_64
>
> installed.
>
> If https is the default URL-type, is there some configuration I need
> to do to not get the unsupported URL scheme message?  Is there a way
> to globally set the URL-type to http instead?
>
> I recompiled R 3.1.1 to check, and it doesn't seem to default to https.
>
> Sorry if this is covered somewhere, pointers to appropriate
> documentation will be appreciated.
>
> Thanks,  -- bennet
>
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