Xcode 14.2 (the current default) requires setting
MACOSX_DEPLOYMENT_TARGET to 10.13 or higher; XWord currently uses 10.10. Eventually we will need to raise the minimum (and drop support for 10.10-10.12), but this should keep things working for the time being.
Available versions taken from: https://www.appveyor.com/docs/macos-images-software/
Xcode 14.2 (the current default) requires setting MACOSX_DEPLOYMENT_TARGET to 10.13 or higher; XWord currently uses 10.10. Eventually we will need to raise the minimum (and drop support for 10.10-10.12), but this should keep things working for the time being.