File 0018-set-have-decl-tzname.patch of Package mingw64-python3

--- a/cmake/config-mingw/pyconfig.h  2022-10-18 21:53:20.119470981 +0000
+++ b/cmake/config-mingw/pyconfig.h  2022-10-18 21:54:42.107788142 +0000
@@ -287,6 +287,10 @@
 /* Define to 1 if you have the <direct.h> header file. */
 #define HAVE_DIRECT_H 1
 
+/* Define to 1 if you have the declaration of `tzname', and to 0 if you don't.
+   */
+#define HAVE_DECL_TZNAME 1
+
 /* Define if you have dirent.h.  */
 #define HAVE_DIRENT_H 1