diff options
| -rw-r--r-- | cmake/QtFeature.cmake | 15 | ||||
| -rw-r--r-- | cmake/QtToolchainHelpers.cmake | 50 |
2 files changed, 56 insertions, 9 deletions
diff --git a/cmake/QtFeature.cmake b/cmake/QtFeature.cmake index 61e645f6e0..c0962d7683 100644 --- a/cmake/QtFeature.cmake +++ b/cmake/QtFeature.cmake @@ -890,9 +890,8 @@ function(qt_get_platform_try_compile_vars out_var) # Pass darwin specific options. # The architectures need to be passed explicitly to project-based try_compile calls even on # macOS, so that arm64 compilation works on Apple silicon. - if(CMAKE_OSX_ARCHITECTURES) - list(GET CMAKE_OSX_ARCHITECTURES 0 osx_first_arch) - + qt_internal_get_first_osx_arch(osx_first_arch) + if(osx_first_arch) # Do what qmake does, aka when doing a simulator_and_device build, build the # target architecture test only with the first given architecture, which should be the # device architecture, aka some variation of "arm" (armv7, arm64). @@ -909,6 +908,16 @@ function(qt_get_platform_try_compile_vars out_var) set("${out_var}" "${flags_cmd_line}" PARENT_SCOPE) endfunction() +# Set out_var to the first value of CMAKE_OSX_ARCHITECTURES. +# Sets an empty string if no architecture is present. +function(qt_internal_get_first_osx_arch out_var) + set(value "") + if(CMAKE_OSX_ARCHITECTURES) + list(GET CMAKE_OSX_ARCHITECTURES 0 value) + endif() + set(${out_var} "${value}" PARENT_SCOPE) +endfunction() + function(qt_config_compile_test_x86simd extension label) if (DEFINED TEST_X86SIMD_${extension}) return() diff --git a/cmake/QtToolchainHelpers.cmake b/cmake/QtToolchainHelpers.cmake index 5495cbf6c5..f4ee35be31 100644 --- a/cmake/QtToolchainHelpers.cmake +++ b/cmake/QtToolchainHelpers.cmake @@ -112,15 +112,53 @@ function(qt_internal_create_toolchain_file) "set(CMAKE_OSX_DEPLOYMENT_TARGET \"${CMAKE_OSX_DEPLOYMENT_TARGET}\" CACHE STRING \"\")") endif() + # Save list of initial architectures Qt was configured with. + set(_qt_osx_architectures_escaped "${CMAKE_OSX_ARCHITECTURES}") + string(REPLACE ";" "LITERAL_SEMICOLON" + _qt_osx_architectures_escaped "${_qt_osx_architectures_escaped}") + set(docstring "List of architectures Qt was built with") + list(APPEND init_platform + "set(QT_OSX_ARCHITECTURES \"${_qt_osx_architectures_escaped}\" CACHE STRING \"${docstring}\")") + list(APPEND init_platform "") + + # When building another qt repo, ensure the same list of architectures is used by default. + # Detection of a qt repo is done by checking for QT_REPO_MODULE_VERSION which is set in + # the repo's .cmake.conf file. + # Standalone tests will be not be built with multiple architectures to avoid issues in the + # CI when trying to run cmake build tests on VMs that do not have a universal macOS + # SDK. + list(APPEND init_platform "# Only build multiple architectures when building Qt itself") + list(APPEND init_platform "if((QT_REPO_MODULE_VERSION AND NOT QT_BUILD_STANDALONE_TESTS) OR QT_FORCE_QT_OSX_ARCHITECTURES)") + list(APPEND init_platform " set(__qt_toolchain_building_qt_repo TRUE)") + list(APPEND init_platform " set(CMAKE_OSX_ARCHITECTURES \"\${QT_OSX_ARCHITECTURES}\" CACHE STRING \"\")") + list(APPEND init_platform "endif()") + list(APPEND init_platform "") + + # For macOS user projects, default to not specifying any architecture. This means CMake will + # not pass an -arch flag to the compiler and the compiler will choose the default + # architecture to build for. + # On Apple Silicon, CMake will introspect whether it's running under Rosetta and will + # pass the detected architecture (x86_64 under Rosetta or arm64 natively) to the compiler. + # This is line with default CMake behavior for user projects. + # + # For iOS, we provide a bit more convenience. + # When the user project is built using the Xcode generator, don't specify a default + # architecture and let Xcode and the developer handle it. + # When using the Ninja generator, specify the first architecture from QT_OSX_ARCHITECTURES + # (even with a simulator_and_device Qt build). This ensures that the default configuration + # at least tries to build something. if(UIKIT) + qt_internal_get_first_osx_arch(osx_first_arch) + list(APPEND init_platform "if(NOT CMAKE_GENERATOR STREQUAL \"Xcode\" AND NOT __qt_toolchain_building_qt_repo)") list(APPEND init_platform - "set(CMAKE_SYSTEM_NAME \"${CMAKE_SYSTEM_NAME}\" CACHE STRING \"\")") - set(_qt_osx_architectures_escaped "${CMAKE_OSX_ARCHITECTURES}") - string(REPLACE ";" "LITERAL_SEMICOLON" - _qt_osx_architectures_escaped "${_qt_osx_architectures_escaped}") - list(APPEND init_platform - "set(CMAKE_OSX_ARCHITECTURES \"${_qt_osx_architectures_escaped}\" CACHE STRING \"\")") + " set(CMAKE_OSX_ARCHITECTURES \"${osx_first_arch}\" CACHE STRING \"\")") + list(APPEND init_platform "endif()") + list(APPEND init_platform "") + endif() + if(UIKIT) + list(APPEND init_platform + "set(CMAKE_SYSTEM_NAME \"${CMAKE_SYSTEM_NAME}\" CACHE STRING \"\")") list(APPEND init_platform "if(CMAKE_GENERATOR STREQUAL \"Xcode\" AND NOT QT_NO_XCODE_EMIT_EPN)") list(APPEND init_platform " set_property(GLOBAL PROPERTY XCODE_EMIT_EFFECTIVE_PLATFORM_NAME OFF)") list(APPEND init_platform "endif()") |