On 8 August 2015 at 13:08, Julien Cristau wrote: | Control: severity -1 serious | Control: tag -1 confirmed | | On Fri, Jul 3, 2015 at 13:10:42 +0000, Matthias Klose wrote: | | > Background [1]: libstdc++6 introduces a new ABI to conform to the | > C++11 standard, but keeps the old ABI to not break existing binaries. | > Packages which are built with g++-5 from experimental (not the one | > from testing/unstable) are using the new ABI. Libraries built from | > this source package export some of the new __cxx11 or B5cxx11 symbols, | > and dropping other symbols. If these symbols are part of the API of | > the library, then this rebuild with g++-5 will trigger a transition | > for the library. | > | > What is needed: | > | > - Rebuild the library using g++/g++-5 from experimental. Note that | > most likely all C++ libraries within the build dependencies need | > a rebuild too. You can find the log for a rebuild in | > https://people.debian.org/~doko/logs/gcc5-20150701/ | > Search for "BEGIN GCC CXX11" in the log. | > | > - Decide if the symbols matching __cxx11 or B5cxx11 are part of the | > library API, and are used by the reverse dependencies of the | > library. | > | From the log and the public headers of the package, it does look like | the libraries shipped by jags break ABI on a rebuild with the new | libstdc++. However, instead of being properly split out as required by | policy, the libraries are shipped as part of the 'jags' binary package, | which makes this a bit of a pain. I guess what needs to happen now is | - split the libraries out to separate binary packages | - add Breaks on r-cran-rjags (<< 1:3-15-1) (thankfully the only reverse dependency) | - rebuild r-cran-rjags
Because only r-cran-rjags depends on jags, can we not simply rebuild jags and maybe give it a 'v5' version rebuild r-cran-jags, depending on either the 'v5' versioning or just the 'high enough' jags version ? I don't see the need for splitting the libraries out of the jags package. What am I missing? Dirk | Cheers, | Julien | x[DELETED ATTACHMENT signature.asc, application/pgp-signature] -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
