Eventually MacPorts and/or Xcode will get fixed. I'm not involved except as someone else that wants it to work (I was fortunate and asked before installing it, and was warned that there might be problems). So I have no idea when "eventually" might be. Hopefully those who know more will let us know.
Until then, you can still download older Xcode versions outside of the app store, and install them: https://developer.apple.com/download/more/ <https://developer.apple.com/download/more/> 10.3 is the one you want, I think. You may need an account, although it does not have to be a paid developer account. > On Sep 23, 2019, at 18:12, Ralph Castain <[email protected]> wrote: > > Apple apparently included an Xcode update in a recent maintenance release. > Since the update, I am unable to run many of the compiler ports (gcc, > python) due to errors stating that system headers and libraries cannot be > found. Investigation revealed that the ports were all configured with: > > --with-sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk > > However, the Xcode update apparently removed the MacOSX10.14.sdk in that > directory and > replaced it with MacOSX10.15.sdk - even though I have NOT updated the OS > from Mojave! > > I tried uninstalling all ports and reinstalling them, but that didn't > help. Ditto for simply creating a MacOSX10.14.sdk symlink. > > Does anyone have a suggestion on how to get around this problem? > > Ralph > >
