That would explain it! Qt6.8 has this "macOS 12 or higher (including macOS 15)", that’s one version newer than what you are running.
However, Qt6.5 and Qt6.7 do support Big Sur. So you might try qt64 or qt67. > On Apr 1, 2025, at 10:09 AM, Christoph Kukulies via macports-users > <macports-users@lists.macports.org> wrote: > > Hi Marius, > > thanks for answering. I'm using BigSur 11.7.10 - no chance to ugrade since > I'm running a mid 2014 MBP. > > >> Am 01.04.2025 um 17:00 schrieb Marius Schamschula <mschamsch...@gmail.com >> <mailto:mschamsch...@gmail.com>>: >> >> Christoph, >> >> Qt6 (for that matter all versions of Qt) only have limited backward >> compatibility for macOS. >> >> Which macOS version are you trying to build on? >> >>> On Apr 1, 2025, at 9:49 AM, Christoph Kukulies via macports-users >>> <macports-users@lists.macports.org >>> <mailto:macports-users@lists.macports.org>> wrote: >>> >>> I'm trying to build LibrePCB from Sources under macOS. After having take >>> the first hurdle, opencascade, I'm now >>> trying to take the next one, Qt 6.2.#When typing in: >>> >>> $ sudo port install qt6 >>> Password: >>> qt6 is known to fail. Try to install anyway? [y/N]: >>> >>> What should I answer? Alternative? >>> >>> >>> -- >>> Christoph >>> >> >> Marius >> -- >> Marius Schamschula >> >> >> >
