SDL: cmake: enable_language(OBJC) to fix check_objc_source_compiles().

SDL Commits
1 
From 3c9ac4489eef3aaf973754dc816950ba90243863 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sat, 5 Feb 2022 18:45:50 +0300
Subject: [PATCH] cmake: enable_language(OBJC) to fix
 check_objc_source_compiles().

---
 cmake/macros.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cmake/macros.cmake b/cmake/macros.cmake
index 914c30f6214..c284c5e2fd4 100644
--- a/cmake/macros.cmake
+++ b/cmake/macros.cmake
@@ -101,6 +101,7 @@ if(${CMAKE_VERSION} VERSION_LESS "3.16.0")
   endmacro()
 else()
   include(CheckOBJCSourceCompiles)
+  enable_language(OBJC)
 endif()
 
 if(CMAKE_VERSION VERSION_LESS 3.13.0)