From a7dfd5e38facc34e40881e1660802a2a97020204 Mon Sep 17 00:00:00 2001
From: Lukasz Michalczyk <lukasz_michalczyk_1985@wp.pl>
Date: Tue, 11 Jun 2024 16:21:13 +0200
Subject: [PATCH] Update cmake/Endian.cmake to work with newer versions of
 CMake (>=3.20.0)

---
 cmake/Endian.cmake | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/cmake/Endian.cmake b/cmake/Endian.cmake
index 3bfba653ca..676208bf87 100644
--- a/cmake/Endian.cmake
+++ b/cmake/Endian.cmake
@@ -3,12 +3,23 @@
 # add_endian_definition()
 #
 function(add_endian_definition)
-    include(TestBigEndian)
-    TEST_BIG_ENDIAN(IS_BIG_ENDIAN)
+    
+    if(CMAKE_VERSION VERSION_LESS "3.20.0") 
+        include(TestBigEndian)
+        TEST_BIG_ENDIAN(IS_BIG_ENDIAN)
+        if(IS_BIG_ENDIAN)
+            add_definitions(-DTTD_ENDIAN=TTD_BIG_ENDIAN)
+        else()
+            add_definitions(-DTTD_ENDIAN=TTD_LITTLE_ENDIAN)
+        endif()
 
-    if(IS_BIG_ENDIAN)
-        add_definitions(-DTTD_ENDIAN=TTD_BIG_ENDIAN)
     else()
-        add_definitions(-DTTD_ENDIAN=TTD_LITTLE_ENDIAN)
+        if(CMAKE_<LANG>_BYTE_ORDER EQUAL BIG_ENDIAN)
+            add_definitions(-DTTD_ENDIAN=TTD_BIG_ENDIAN)
+        else()
+            add_definitions(-DTTD_ENDIAN=TTD_LITTLE_ENDIAN)
+        endif()
+
     endif()
+
 endfunction()