Thursday, October 14, 2021 [Tweets] [Favorites]

XcodeNueve: Running the Xcode 9 Tools

Brendan Shanks:

A hack allowing the use of Xcode 9’s toolchain on macOS Catalina, Big Sur, and Monterey.

Xcode 9.4.1 and the macOS 10.13 SDK are the last versions capable of building 32-bit Intel (i386) binaries.

Due to internal frameworks that reference private AppKit instance variables (removed in macOS Catalina), Xcode 9 and its included toolchain fail to run on any macOS version past Mojave.

For projects which need to build i386 binaries to support macOS 10.14 and earlier (like Wine), this requires keeping around a 10.14 build machine, which is undesirable for a number of reasons (no more security updates, requires older hardware, can’t also run latest Xcode, etc.)

The Xcode 9 app itself still doesn’t work, but this lets you use its compiler and other tools.

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