diff -rupN --no-dereference Python-3.10.9/configure.ac Python-3.10.9-new/configure.ac --- Python-3.10.9/configure.ac 2022-12-08 09:36:55.983024786 +0100 +++ Python-3.10.9-new/configure.ac 2022-12-08 09:36:56.268024792 +0100 @@ -3017,10 +3017,19 @@ void *x = uuid_enc_be AC_SEARCH_LIBS(sem_init, pthread rt posix4) # check if we need libintl for locale functions +case $host in + *-*-mingw*) + dnl Native windows build don't use libintl (see _localemodule.c). + dnl Also we don't like setup.py to add "intl" library to the list + dnl when build _locale module. + ;; + *) AC_CHECK_LIB(intl, textdomain, [AC_DEFINE(WITH_LIBINTL, 1, [Define to 1 if libintl is needed for locale functions.]) LIBS="-lintl $LIBS"]) + ;; +esac # checks for system dependent C++ extensions support case "$ac_sys_system" in diff -rupN --no-dereference Python-3.10.9/Modules/_localemodule.c Python-3.10.9-new/Modules/_localemodule.c --- Python-3.10.9/Modules/_localemodule.c 2022-12-06 19:31:21.000000000 +0100 +++ Python-3.10.9-new/Modules/_localemodule.c 2022-12-08 09:36:56.268024792 +0100 @@ -11,6 +11,13 @@ This software comes with no warranty. Us #define PY_SSIZE_T_CLEAN #include "Python.h" +#ifdef __MINGW32__ +/* The header libintl.h and library libintl may exist on mingw host. + * To be compatible with MSVC build we has to undef some defines. + */ +#undef HAVE_LIBINTL_H +#undef HAVE_BIND_TEXTDOMAIN_CODESET +#endif #include "pycore_fileutils.h" #include <stdio.h>