diff options
Diffstat (limited to 'cmake/QtTargetHelpers.cmake')
| -rw-r--r-- | cmake/QtTargetHelpers.cmake | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/cmake/QtTargetHelpers.cmake b/cmake/QtTargetHelpers.cmake index 99e84a2cd7..5ea46a7468 100644 --- a/cmake/QtTargetHelpers.cmake +++ b/cmake/QtTargetHelpers.cmake @@ -558,3 +558,25 @@ function(qt_internal_install_pdb_files target install_dir_path) endif() endif() endfunction() + +# Certain targets might have dependencies on libraries that don't have an Apple Silicon arm64 +# slice. When doing a universal macOS build, force those targets to be built only for the +# Intel x86_64 arch. +# This behavior can be disabled for all targets by setting the QT_FORCE_MACOS_ALL_ARCHES cache +# variable to TRUE or by setting the target specific cache variable +# QT_FORCE_MACOS_ALL_ARCHES_${target} to TRUE. +# +# TODO: Ideally we'd use something like _apple_resolve_supported_archs_for_sdk_from_system_lib +# from CMake's codebase to parse which architectures are available in a library, but it's +# not straightforward to extract the library absolute file path from a CMake target. Furthermore +# Apple started using a built-in dynamic linker cache of all system-provided libraries as per +# https://gitlab.kitware.com/cmake/cmake/-/issues/20863 +# so if the target is a library in the dynamic cache, that might further complicate how to get +# the list of arches in it. +function(qt_internal_force_macos_intel_arch target) + if(MACOS AND QT_IS_MACOS_UNIVERSAL AND NOT QT_FORCE_MACOS_ALL_ARCHES + AND NOT QT_FORCE_MACOS_ALL_ARCHES_${target}) + set(arches "x86_64") + set_target_properties(${target} PROPERTIES OSX_ARCHITECTURES "${arches}") + endif() +endfunction() |