diff --git a/Tools/CMake/basics.cmake b/Tools/CMake/basics.cmake index c0fc10426..6719036db 100644 --- a/Tools/CMake/basics.cmake +++ b/Tools/CMake/basics.cmake @@ -467,6 +467,19 @@ if(WIN32) ENDFOREACH() endif() else() + if(${CMAKE_VERSION} VERSION_LESS "3.16.0") + macro(CHECK_OBJC_SOURCE_COMPILES SOURCE VAR) + set(PREV_REQUIRED_DEFS "${CMAKE_REQUIRED_DEFINITIONS}") + set(CMAKE_REQUIRED_DEFINITIONS "-x objective-c ${PREV_REQUIRED_DEFS}") + CHECK_C_SOURCE_COMPILES(${SOURCE} ${VAR}) + set(CMAKE_REQUIRED_DEFINITIONS "${PREV_REQUIRED_DEFS}") + endmacro() + else() + include(CheckOBJCSourceCompiles) + if (APPLE) + enable_language(OBJC) + endif() + endif() # TODO: improve default settings on other platforms set(TORQUE_CXX_FLAGS_EXECUTABLES "" CACHE STRING "") mark_as_advanced(TORQUE_CXX_FLAGS_EXECUTABLES)