On Tue, Aug 1, 2023 at 5:28 PM Thomas Wagner <tom-oi-...@tom.bn-ulm.de> wrote:
> On Tue, Aug 01, 2023 at 05:09:26PM +0200, Marcel Telka wrote: > > On Tue, Aug 01, 2023 at 02:38:32PM +0100, Peter Tribble wrote: > > > On Tue, Aug 1, 2023 at 6:41 AM Stephan Althaus < > > > stephan.alth...@duedinghausen.eu> wrote: > > > > We are stumbling over some faults with regard to the GCC Version > change. > > > > > > Perhaps this would be an opportune moment to reconsider the way that > > > libstdc++ > > > (and generally the whole gcc/g++ runtime) is packaged, and to go for > the > > > obvious > > > and supported route of only shipping one copy of the runtime - the one > > > corresponding to > > > the latest version of the compiler that you ship (gcc11 ?), and > putting it > > > directly in > > > /usr/lib. > > > > The obvious question now is: > > Why it was not done that way since beginning? > > Placing a library in /usr/lib/ that caused version incompatibilties in the > past > and most likely will continue to do so every now an then is not the best > idea. > Despite the promised compatibility in newer versions of the runtime libs. > In rare cases we've seen binaries compiled with an old gcc version not > being > compatible with the latest gcc runtime libs. Especially for C++. > That would be a plain and simple bug; the gcc team take binary compatibility very seriously, and actually understand things like shared library versioning properly. To the extent that we have had a forward-compatible libstdc++ that manages to cleanly handle the fact that the C++ ABI itself changed (leading to the library transparently handling the dual ABI from gcc 5.1 onwards) along with multiple versions of the C++ language since about GCC 3.4. Therefore the SFE packaging project points libs and binaries to a > versioned directory to get the version of runtime libs loaded they have > been compiled with. > e.g. binaries look first in /usr/gcc-sfe/4.9/lib and /usr/gcc-sfe/11/lib > for the runtime libs in an early stage. > > Regards > Thomas > > > _______________________________________________ > oi-dev mailing list > oi-dev@openindiana.org > https://openindiana.org/mailman/listinfo/oi-dev > -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
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