function(verify_architectures file) execute_process( COMMAND xcrun otool -vf ${RunCMake_TEST_BINARY_DIR}/_install/${file} OUTPUT_VARIABLE otool_out ERROR_VARIABLE otool_err RESULT_VARIABLE otool_result) if(NOT otool_result EQUAL "0") message(SEND_ERROR "Could not retrieve fat headers: ${otool_err}") return() endif() string(REGEX MATCHALL "\narchitecture [^ \n\t()]+" architectures "${otool_out}") string(REPLACE "\narchitecture " "" actual "${architectures}") list(SORT actual) if(XCODE_VERSION VERSION_LESS 14) set(maybe_armv7 armv7) set(maybe_i386 i386) else() set(maybe_armv7 "") set(maybe_i386 "") endif() set(expected arm64 ${maybe_armv7} ${maybe_i386} x86_64) if(NOT actual STREQUAL expected) message(SEND_ERROR "The actual library contains the architectures:\n ${actual} \n" "which do not match expected ones:\n ${expected} \n" "otool output:\n${otool_out}") endif() endfunction() verify_architectures(bin/foo_app.app/foo_app) verify_architectures(lib/libfoo_static.a) verify_architectures(lib/libfoo_shared.dylib) verify_architectures(lib/foo_bundle.bundle/foo_bundle) verify_architectures(lib/foo_framework.framework/foo_framework)