diff options
Diffstat (limited to 'Modules/Platform/Darwin-Initialize.cmake')
| -rw-r--r-- | Modules/Platform/Darwin-Initialize.cmake | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Modules/Platform/Darwin-Initialize.cmake b/Modules/Platform/Darwin-Initialize.cmake index d087412..15e6123 100644 --- a/Modules/Platform/Darwin-Initialize.cmake +++ b/Modules/Platform/Darwin-Initialize.cmake @@ -20,6 +20,17 @@ execute_process(COMMAND sw_vers -productVersion set(CMAKE_OSX_ARCHITECTURES "$ENV{CMAKE_OSX_ARCHITECTURES}" CACHE STRING "Build architectures for OSX") +if(NOT CMAKE_CROSSCOMPILING AND + CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND + CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "arm64" AND + CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64") + # When building on Apple Silicon (arm64), we need to explicitly specify + # the architecture to the toolchain since it will otherwise guess the + # architecture based on that of the build system tool. + # Set an *internal variable* to tell the generators to do this. + set(_CMAKE_APPLE_ARCHS_DEFAULT "arm64") +endif() + # macOS, iOS, tvOS, and watchOS should lookup compilers from # Platform/Apple-${CMAKE_CXX_COMPILER_ID}-<LANG> set(CMAKE_EFFECTIVE_SYSTEM_NAME "Apple") |