SDL: cmake: include CheckOBJCSourceCompiles for cmake >= 3.16

SDL Commits
1 
From 686a0f34562587f2da41e2792b086af33a0a5d0c Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sat, 5 Feb 2022 18:28:24 +0300
Subject: [PATCH] cmake: include CheckOBJCSourceCompiles for cmake >= 3.16

c.f. bugs #5011 and #3912
---
 cmake/macros.cmake | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/cmake/macros.cmake b/cmake/macros.cmake
index 84cb4c6dcea..914c30f6214 100644
--- a/cmake/macros.cmake
+++ b/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)