cmake: include CheckOBJCSourceCompiles for cmake >= 3.16

c.f. bugs #5011 and #3912

cmake/macros.cmake

@@ -92,12 +92,16 @@ macro(LISTTOSTRREV _LIST _OUTPUT)
   endforeach()
 endmacro()
 
-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()
+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)
+endif()
 
 if(CMAKE_VERSION VERSION_LESS 3.13.0)
   macro(target_link_directories _TARGET _SCOPE)