[Rcpp-devel] RcppParallel on Solaris

[JJ Allaire]

We only see the "long long" warnings with clang on Debian testing with
-pedantic enabled. Note that not all CRAN maintainers test under this
configuration so sometimes it depends on who is reviewing the
submission. My first preference would be to ensure that these warnings
don't occur so we always pass muster. However as you point out it can
be fragile and risky to modify upstream code so perhaps asking for an
exception is the right course.





On Mon, Apr 13, 2015 at 9:42 AM, Gábor Csárdi <csardi.gabor at gmail.com> wrote:
> On Mon, Apr 13, 2015 at 8:32 AM, Dirk Eddelbuettel <edd at debian.org> wrote:
>>
>>
>> On 13 April 2015 at 08:03, JJ Allaire wrote:
>> | I'll have to take a closer look at the warnings. One other issue that
>> | needs to be resolved prior to the next submission to CRAN revolves
>> | around pedantic warnings on Debian testing that prohibit "long long"
>> | (used by both TinyThread and TBB). The easy workaround is
>> | SystemRequirements: C++11 however this will mean that package won't
>> | compile on pre-Mavericks Macs (~30% of all Macs) nor RedHat/CentOS
>> | systems. Perhaps I can modify TinyThread and TBB to no longer use
>> | "long long" but I'll need to do this very carefully.
>>
>> I never found another way to get 'long long' besides requiring C++11.
>
>
> It might be fine, actually. I have a package with long long on CRAN, and
> yes, they asked me to "fix it", but like for you, it is in upstream code, so
> I am not really comfortable removing it, and CRAN seems to be OK with it
> now.
>
> Other packages seem to have it, too:
> https://github.com/search?q=user%3Acran+%22long+long%22&type=Code&utf8=%E2%9C%93
> I doubt that these all require C++11.
>
> Also, all compilers they use have long long, so what is the point, really?
>
> Gabor
>
> [...]