PCH: Use per-arch .pch files only when building multiple Apple architectures (!9483) · Merge requests · CMake / CMake

Brad King requested to merge brad.king/cmake:pch-single-arch into master May 01, 2024

Since !4561 (merged) we use per-arch .pch files even when compiling for just the host architecture on macOS arm64. This breaks with compilers that do not support -Xarch_ flags, such as GCC. Avoid using per-arch .pch files in single-architecture builds.

Fixes: #25514 (closed)
Issue: #20497 (closed)

PCH: Use per-arch .pch files only when building multiple Apple architectures

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