Changes for Windows build

Author: Eclips4

PC/pyconfig.h.in

@@ -102,6 +102,12 @@ WIN32 is still required for the locale module.
 /* #define Py_GIL_DISABLED 1 */
 #endif
 
+/* Define to 1 if you want to enable the JIT */
+/* Define to "interpreter" if you want to enable tier 2 interpreter */
+#ifndef Py_JIT_ENABLED
+/* #define Py_JIT_ENABLED 1*/
+#endif
+
 /* Compiler specific defines */
 
 /* ------------------------------------------------------------------------*/

PCbuild/pythoncore.vcxproj

@@ -709,7 +709,7 @@
       <PyConfigHText>$(PyConfigHText.Replace('/* #define Py_JIT_ENABLED 1 */', '#define Py_JIT_ENABLED 1'))</PyConfigHText>
     </PropertyGroup>
     <PropertyGroup Condition="$(UseTIER2) == 'true'">
-      <PyConfigHText>$(PyConfigHText.Replace('/* #define Py_JIT_ENABLED "interpreter" */', '#define Py_JIT_ENABLED "interpreter"'))</PyConfigHText>
+      <PyConfigHText>$(PyConfigHText.Replace('/* #define Py_JIT_ENABLED 1 */', '#define Py_JIT_ENABLED "interpreter"'))</PyConfigHText>
     </PropertyGroup>
     <Message Text="Updating pyconfig.h" Condition="$(PyConfigHText.TrimEnd()) != $(OldPyConfigH.TrimEnd())" />
     <WriteLinesToFile File="$(IntDir)pyconfig.h"