[R-pkg-devel] Compilation used the "non-portable flag"

[Gábor Csárdi]

You don't need to do anything.

Gabor

On Wed, May 15, 2019 at 2:13 PM Goldfeld, Keith
<Keith.Goldfeld using nyulangone.org> wrote:
>
> Forgive me for not completely understanding the back and forth. Do I need to do anything on my end, or are these changes that are being made on the server side?
>
>
> - Keith
>
> ________________________________
> From: R-package-devel <r-package-devel-bounces using r-project.org> on behalf of Iñaki Ucar <iucar using fedoraproject.org>
> Sent: Wednesday, May 15, 2019 9:01:31 AM
> To: Dirk Eddelbuettel
> Cc: r-package-devel using r-project.org
> Subject: Re: [R-pkg-devel] Compilation used the "non-portable flag"
>
> On Wed, 15 May 2019 at 13:16, Dirk Eddelbuettel <edd using debian.org> wrote:
> >
> >
> > On 15 May 2019 at 11:49, Gábor Csárdi wrote:
> > | Thinking about this a bit more, I think this might be a bug in R CMD
> > | check, actually.
> > |
> > | I understand that these flags are not portable, and yes, they should
> > | be reported if they are specified in the packages's Makevars* files.
> > | But in this case they are coming from the Ubuntu system's Makevars
> > | setup, and surely, they do work there. I would even say that it is
> > | actually good practice to include them in the system setup.
> > |
> > | I can probably provide a patch for this.
> >
> > See discussions on r-sig-debian -- in essence I had the same thouht and this
> > has been taken care of now in R 3.6.0-2.  We add this to Renviron.site
> >
> > ## edd May 2019
> > ##
> > ## Debian (and its derivatives) impose a set of compiler flags to prevent some known
> > ## security issues with compiled code.  These flags then become defaults for R as well
> > ## (see eg /etc/R/Makeconf) but nevertheless confuse R as warnings get triggers.  Users,
> > ## on the other hand, are often stumped about these.  So with this variable we declare
> > ## these options as known for the local checks on the machine this file is on.
> > ##
> > ## See Section 8 of the R Internals manual for many more options to customize tests.
> > _R_CHECK_COMPILATION_FLAGS_KNOWN_='-Wformat -Werror=format-security -Wdate-time'
> >
> >
> > It may eventually move to Renviron now that Kurt kindly fixed an Renviron parser
> > buglet with `=` assignments in r-devel
> >
> > So please add the environment variable now on all Debian and Ubuntu flavours,
> > and/or upgrade to 3.6.0-2.
>
> Fedora adds these flags too, plus -D_GLIBCXX_ASSERTIONS since Fedora 28, see:
>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__stat.ethz.ch_pipermail_r-2Dpackage-2Ddevel_2018q2_002754.html&d=DwIFaQ&c=j5oPpO0eBH1iio48DtsedeElZfc04rx3ExJHeIIZuCs&r=fPRk5fx5iys38LPukC4wc6PALfhKJF_KlHbdD5hrfGc&m=CfJnEvpTss5ER8w_xXRZMDRvEhrseOVfAIu5aLZrY24&s=LjMY_8I7NS1NWWY4b4ijWmd8QV8E4pmF-TEqbB3dz8I&e=
>
> This last one is particularly difficult to conceal, because the
> resulting code includes calls to abort, for which R complains.
>
> Iñaki
>
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