On Tue, Apr 28, 2015 at 4:07 PM, Anthony G. Basile <bluen...@gentoo.org> wrote: > On 04/26/15 23:21, Duncan wrote: >> >> Diego Elio Pettenò posted on Sun, 26 Apr 2015 17:41:04 +0100 as excerpted: >> >>> On 25 April 2015 at 16:57, Duncan <1i5t5.dun...@cox.net> wrote: >>> >>>> Of course, one thing that could make the process faster would be if C++ >>>> based packages were marked some way. >>> >>> >>> revdep-rebuild --soname 'libstdc\+\+.so.*' >>> >>> should do the trick. Stuff that does not link the library (statically >>> linked or using libsupc++) should not really matter. >> >> Thanks. Obvious in hindsight. =:^) >> > > just saw this. This works unless you have two versions of gcc installed. > The c++11 abi emitted by gcc-4.7 and 4.8 are different and since you link > against the latest version (see the ordering of directories in > /etc/ld.so.conf.d/05gcc-x86_64-pc-linux-gnu.conf), building with the earlier > gcc can cause breakage. We may not want to support such a situation but I'd > like to.
As I understand it, a given version of gcc links objects against its own version of libstdc++, but the "latest" version of libstdc++ is loaded by ld.so at runtime. Maybe that's what you meant, but I wanted to clarify that. And if I am wrong on that, please correct me. ^_^
