Build: Move KWSYS_ENCODING_DEFAULT_CODEPAGE to the config header

Source/CMakeLists.txt

@@ -765,9 +765,6 @@ target_link_libraries(
     ${CMAKE_THREAD_LIBS_INIT}
   )
 
-set_property(SOURCE cmProcessOutput.cxx cmWindowsRegistry.cxx APPEND PROPERTY COMPILE_DEFINITIONS
-  KWSYS_ENCODING_DEFAULT_CODEPAGE=${KWSYS_ENCODING_DEFAULT_CODEPAGE})
-
 # Check if we can build the Mach-O parser.
 if(CMake_USE_MACH_PARSER)
   target_sources(

Source/cmConfigure.cmake.h.in

@@ -39,3 +39,5 @@
 
 #cmakedefine01 CMake_STAT_HAS_ST_MTIM
 #cmakedefine01 CMake_STAT_HAS_ST_MTIMESPEC
+
+#cmakedefine KWSYS_ENCODING_DEFAULT_CODEPAGE @KWSYS_ENCODING_DEFAULT_CODEPAGE@

Source/cmWindowsRegistry.h

@@ -2,6 +2,8 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #pragma once
 
+#include "cmConfigure.h" // IWYU pragma: keep
+
 #include <cstdint> // IWYU pragma: keep
 #include <string>
 #include <vector>