Re: Transition news: GCC 6 enabled by default
On 9 August 2016 at 17:44, Emilio Pozuelo Monfort wrote:
| On 07/08/16 15:18, Dirk Eddelbuettel wrote:
| >
| > Thanks for starting the g++-6 transition.
| >
| > I suspect/believe that I "own" a (small) stack which needs a transition policy:
| >
| > -- the "R" language (source package r-base) encodes its configuration time
| > choices for all subsequent compilations; here we have CXX and CXX1X (plus
| > CXX1Y in next release)
| >
| > -- this could be overwritten but it easiest just to rebuild R
| >
| > -- R itself is largely C and Fortran and will not be affected
| >
| > -- C++ packages will. I am also upstream of the somewhat-widely used C++
| > interface in package Rcpp (source package rcpp). We need to rebuild it,
| > and then all packages dependending on it. See [1] below. There may also
|
| Why do all the rdeps need to be rebuilt? I'm not even sure I understand why rcpp
| needs to be rebuilt...
You were right, I was wrong. RQuantLib just needed an update, it is now back
in testing after five days in unstable.
Wrong alarm from my side, looks like we do NOT need a formal transition as I
feared. Yay.
Thanks for calmly setting me straight :)
Dirk
| > be one or two C++ packages not using Rcpp such as r-cran-mcmcpack. I can
| > weed those out by hand by running a script over rdepends for R as
| > well. Actually just filtering rdepends for C++ works, see [2]
| >
| > -- Ditto for the QuantLib library (depending on Boost) and r-cran-rquantlib
| > though that is a small leaf
| >
| > Is this "small potatos" and something I should organize informally with the
| > package maintainers, or something you want to coordinate?
| >
| > I CC'ed Doko and Martin has I have been discussing an open bug report (which
| > is somewhat false positive) concerning r-cran-rquantlib; this is really just
| > the need for the same C++ compiler between R, Rcpp, QuantLib and RQuantLib
| > (which this transition would achieve too).
| >
| > Let me know if I should take this to debian-devel or some other list.
|
| Can you summarise all this? I didn't quite understand what is required...
|
| What is needed here, binNMUs for a bunch of packages so they are built with the
| same compiler? Why? Does the ABI change and thus is a library transition needed?
|
| Thanks,
| Emilio
--
http://dirk.eddelbuettel.com | @eddelbuettel | edd@debian.org
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