diff options
Diffstat (limited to 'Modules/CMakeDetermineSystem.cmake')
| -rw-r--r-- | Modules/CMakeDetermineSystem.cmake | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/Modules/CMakeDetermineSystem.cmake b/Modules/CMakeDetermineSystem.cmake index f3ec4da2d..cb4421aa9 100644 --- a/Modules/CMakeDetermineSystem.cmake +++ b/Modules/CMakeDetermineSystem.cmake @@ -46,10 +46,21 @@ if(CMAKE_HOST_UNIX) if(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux|CYGWIN.*|Darwin|^GNU$|Android") exec_program(${CMAKE_UNAME} ARGS -m OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR RETURN_VALUE val) - if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin" AND - CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "Power Macintosh") - # OS X ppc 'uname -m' may report 'Power Macintosh' instead of 'powerpc' - set(CMAKE_HOST_SYSTEM_PROCESSOR "powerpc") + if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin") + if(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "x86_64") + # Check whether we are running under Rosetta on arm64 hardware. + execute_process(COMMAND sysctl -q hw.optional.arm64 + OUTPUT_VARIABLE _sysctl_stdout + ERROR_VARIABLE _sysctl_stderr + RESULT_VARIABLE _sysctl_result + ) + if(_sysctl_result EQUAL 0 AND _sysctl_stdout MATCHES "hw.optional.arm64: 1") + set(CMAKE_HOST_SYSTEM_PROCESSOR "arm64") + endif() + elseif(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "Power Macintosh") + # OS X ppc 'uname -m' may report 'Power Macintosh' instead of 'powerpc' + set(CMAKE_HOST_SYSTEM_PROCESSOR "powerpc") + endif() endif() elseif(CMAKE_HOST_SYSTEM_NAME MATCHES "OpenBSD") exec_program(arch ARGS -s OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR |