On 28/10/20 14:35 +0100, Florian Weimer wrote:
* Jonathan Wakely:
On 28/10/20 13:31 +0100, Florian Weimer wrote:
* Jonathan Wakely:
Dropping GCC 11 into rawhide now would mean I can't make certain
ABI-breaking changes to the C++20 library in upstream GCC, because it
would be landing on real users' machines. Which means I lose several
weeks of GCC's stage 1 development. No thanks.
This is for C++20 library support only, right?
Right.
Not much software in Fedora uses the C++ standard library (even at older
C++ versions), so impact on Fedora itself should be limited.
On Fedora iteself, yes. But not necessarily on users compiling their
own code (or other third-party libraries) using the system compiler.
Does GCC 10 have a stable ABI for C++20 features? It's still
experimental. So I think it's a wash for rawhide users after all?
Yes, that's true. But at least there's a "flag day" when GCC 11
arrives in rawhide, when it's pretty reasonable to expect things to
change.
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