[Aptitude-devel] Bug#777778: Bug#794406: g++: Non-deterministic "/usr/include/c++/5/bits/basic_string.h:121:53: internal compiler error: Segmentation fault" when compiling aptitude 0.7-1

[Axel Beckert]

Hi Matthias,

Matthias Klose wrote:
> >>> I've just tried to build the upcoming aptitude 0.7-1 inside a pbuilder
> >>> chroot.
> >>>
> >>> I've first recompiled the following source packages with gcc-5/5.2.1-14
> >>> respectively g++-5/5.2.1-14 and against libstdc++6/5.2.1-14 and
> >>> installed the (necessary) packages built that way:
[...]
> ok, both locally and on the Ubuntu buildds in a wily environment, I get another
> build failure.
> 
>   https://launchpad.net/~doko/+archive/ubuntu/toolchain/+packages
> 
> however, this is with a rebuilt boost1.58, libsigc++2.0, libapt-pkg-dev,
> xapian-core, cppunit.

Ok, so the difference to my (in the second run) successful build
inside pbuilder are:

* No rebuild of libsigc++2.0
* Boost 1.55

We (Manuel and me) expect potential issues with Boost 1.58 (as usual
with Boost version bumps). Maybe it's them.

I'll check as soon as I find time for such a rebuild-chain.

> xapian and boost were uploaded today, bug reports for libsigc++

I assume you mean libsigc++-2.0. (libsigc++ has been removed from Sid
in 2014: https://bugs.debian.org/735559; reported by Manuel)

Anyway, that will save me at least the xapian-core rebuild. :-)

> and cppunit exist

I don't see any such bug for cppunit, actually I see no cppunit bug at
all: https://bugs.debian.org/cgi-bin/pkgreport.cgi?src=cppunit

Ah, did you mean library transition bugs? Like
https://bugs.debian.org/791013?

> (if maintainers don't reply, maybe you could coordinate these
> transitions?).

I have no hands-on experience with library transitions and I can't
code in C++. So I don't think, I'm a good choice for that.

> So I think unstable is not yet ready to do this rebuild.

*nod* My current plan is to upload aptitude once all the reverse
dependencies, I had to rebuild, are BinNMUed or had a fresh,
gcc5-related upload (and are built on all architectures preferably).

(Cc'ing aptitude's FTBFS-with-gcc5 bug #777778 instead of just its
maintainer mailing-list.)

		Regards, Axel
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