Mikael, the SDK version (=system libraries) is independent of the Xcode version (=toolchain version). We are using macOS 11 SDK, because we want the binaries to run on macOS 11. R packages typically don't use run-time weak symbol guards, so they would likely crash when compiled against higher SDK version.
Cheers, Simon > On Apr 15, 2023, at 7:48 AM, Mikael Jagan <jagan...@gmail.com> wrote: > > Hi Simon, > > Maybe I'm off the mark, but: > > > R 4.3.0 CRAN builds are using Xcode 14.2, macOS 11.3 SDK and targetting > > macOS 11 (Big Sur) > > AFAICT, Xcode 14.x includes an SDK for macOS 12.3 but not one for macOS 11.3. > > https://developer.apple.com/documentation/xcode-release-notes/xcode-14-release-notes > > Mikael > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac > _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
