CMake: Move endian check to the config.h module.

The result is only used to generate the header, so it should be grouped
with the other checks.

Author: FtZPetruska

prboom2/CMakeLists.txt

@@ -49,9 +49,6 @@ endif()
 
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
-include(CheckBigEndian)
-check_big_endian(WORDS_BIGENDIAN)
-
 include(GNUInstallDirs)
 
 if(POLICY CMP0099)

prboom2/cmake/DsdaConfigHeader.cmake

@@ -49,6 +49,9 @@ function(dsda_internal_check_variables)
 endfunction()
 
 function(dsda_internal_generate_build_config)
+  include(CheckBigEndian)
+  check_big_endian(WORDS_BIGENDIAN)
+
   dsda_internal_check_symbols()
   dsda_internal_check_includes()
   dsda_internal_check_variables()