On 04/28/15 17:52, Mike Gilbert wrote:
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. ^_^


Yes. So you could, for example, fix this by setting the correct rpath at link time so the correct library gets loaded at runtime.

--
Anthony G. Basile, Ph.D.
Gentoo Linux Developer [Hardened]
E-Mail    : bluen...@gentoo.org
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