On Tue, Nov 25, 2025 at 6:35 PM Albert Astals Cid <[email protected]> wrote: > > El dimarts, 25 de novembre del 2025, a les 10:46:03 (Hora estàndard d’Europa > central), Nicolas Fella va escriure: > > Am 25.11.25 um 10:21 schrieb Albert Astals Cid: > > > El dimarts, 25 de novembre del 2025, a les 1:35:03 (Hora estàndard > > > d’Europa > > > > > > central), Michael Pyne va escriure: > > >> On 11/24/25 3:58 PM, Neal Gompa wrote: > > >>> On Mon, Nov 24, 2025 at 3:54 PM Albert Astals Cid<[email protected]> wrote: > > >>>> https://community.kde.org/Frameworks/Policies#Frameworks_compiler_requi > > >>>> re > > >>>> ments_and_Modern_C++ > > >>>> > > >>>> It is wildly outdated, so I would suggest to remove it. > > >>>> > > >>>> Or does someone have a suggested way to update it? > > >>> > > >>> As far as I know, starting from 6.0, we require a C++20 capable > > >>> compiler. That means at least GCC 12, Clang 14, or MSVC 2022 I > > >>> believe. > > > > We did say we _want_ C++20. What specific compiler versions this > > translates to is rather fuzzy since different compiler versions > > implements different subsets of C++20 (e.g. for the longest time > > "nobody" usefully implemented modules). Because of that I don't think we > > ever settled on specific versions. > > > > >> I think there is value in having the policy for allowable C++ standards > > >> and/or compilers written down in some easily-accessible form. Perhaps a > > >> bit more future-proofed so it doesn't get wildly outdated again. I've > > >> been able to find references to requiring C++20-supporting compilers for > > >> KF6 starting from 6.0. > > > > > > The problem is, what is the value of a policy if we do not check/enforce > > > it? > > > > > > Right now the only thing we can say is "it builds with whatever compilers > > > we have in CI". > > > > Even if we don't enforce it by CI there is still value to it. If > > somebody comes around and points out that we broke compilation on > > "reasonably recent platform" that's going to be a different conversation > > than if it's Ubuntu 14.04. > > Ok, fair enough, what about something like > > A) KDE Frameworks can use features of the previous to latest C++ standard, at > the time of writing (November 2025) that means C++20. > > B) KDE Frameworks shall compile with the major compilers: gcc, clang and > msvc(for Frameworks that claim Windows support) > > C) KDE Frameworks shall compile with "reasonably old" versions of the > compilers that claim to support the C++ standard mentioned in point "A" >
That's pretty reasonable. -- 真実はいつも一つ！/ Always, there's only one truth!
