diff -rupN --no-dereference Python-3.10.0rc1/Modules/Setup Python-3.10.0rc1-new/Modules/Setup
--- Python-3.10.0rc1/Modules/Setup	2021-08-02 21:53:59.000000000 +0200
+++ Python-3.10.0rc1-new/Modules/Setup	2021-08-04 16:36:59.637355020 +0200
@@ -123,7 +123,7 @@ _thread -DPy_BUILD_CORE_BUILTIN -I$(srcd
 _locale -DPy_BUILD_CORE_BUILTIN _localemodule.c  # -lintl
 
 # Standard I/O baseline
-_io -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal -I$(srcdir)/Modules/_io _io/_iomodule.c _io/iobase.c _io/fileio.c _io/bytesio.c _io/bufferedio.c _io/textio.c _io/stringio.c
+_io -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal -I$(srcdir)/Modules/_io _io/_iomodule.c _io/iobase.c _io/fileio.c _io/bytesio.c _io/bufferedio.c _io/textio.c _io/stringio.c _io/winconsoleio.c
 
 # faulthandler module
 faulthandler faulthandler.c
diff -rupN --no-dereference Python-3.10.0rc1/Modules/_winapi.c Python-3.10.0rc1-new/Modules/_winapi.c
--- Python-3.10.0rc1/Modules/_winapi.c	2021-08-04 16:36:57.623375343 +0200
+++ Python-3.10.0rc1-new/Modules/_winapi.c	2021-08-04 16:36:59.637355020 +0200
@@ -41,7 +41,9 @@
 
 #define WINDOWS_LEAN_AND_MEAN
 #include "windows.h"
+#if defined(Py_DEBUG)
 #include <crtdbg.h>
+#endif
 #include "winreparse.h"
 
 #if defined(MS_WIN32) && !defined(MS_WIN64)
diff -rupN --no-dereference Python-3.10.0rc1/PC/msvcrtmodule.c Python-3.10.0rc1-new/PC/msvcrtmodule.c
--- Python-3.10.0rc1/PC/msvcrtmodule.c	2021-08-02 21:53:59.000000000 +0200
+++ Python-3.10.0rc1-new/PC/msvcrtmodule.c	2021-08-04 16:36:59.637355020 +0200
@@ -21,7 +21,9 @@
 #include <io.h>
 #include <conio.h>
 #include <sys/locking.h>
+#ifdef _DEBUG
 #include <crtdbg.h>
+#endif
 #include <windows.h>
 
 #ifdef _MSC_VER
diff -rupN --no-dereference Python-3.10.0rc1/Python/dynamic_annotations.c Python-3.10.0rc1-new/Python/dynamic_annotations.c
--- Python-3.10.0rc1/Python/dynamic_annotations.c	2021-08-02 21:53:59.000000000 +0200
+++ Python-3.10.0rc1-new/Python/dynamic_annotations.c	2021-08-04 16:36:59.637355020 +0200
@@ -27,7 +27,7 @@
  * Author: Kostya Serebryany
  */
 
-#ifdef _MSC_VER
+#ifdef MS_WINDOWS
 # include <windows.h>
 #endif
 
diff -rupN --no-dereference Python-3.10.0rc1/setup.py Python-3.10.0rc1-new/setup.py
--- Python-3.10.0rc1/setup.py	2021-08-04 16:36:58.743364037 +0200
+++ Python-3.10.0rc1-new/setup.py	2021-08-04 16:36:59.638355009 +0200
@@ -1254,6 +1254,24 @@ class PyBuildExt(build_ext):
         min_db_ver = (3, 3)
         db_setup_debug = False   # verbose debug prints from this script?
 
+        # Modules with some Windows dependencies:
+        if HOST_PLATFORM.startswith(('mingw', 'win')):
+            srcdir = sysconfig.get_config_var('srcdir')
+            pc_srcdir = os.path.abspath(os.path.join(srcdir, 'PC'))
+
+            self.add(Extension('msvcrt', [os.path.join(pc_srcdir, p)
+                for p in ['msvcrtmodule.c']]) )
+
+            self.add(Extension('_winapi', ['_winapi.c']) )
+
+            self.add(Extension('_msi', [os.path.join(pc_srcdir, p)
+                for p in ['_msi.c']],
+                libraries=['msi','cabinet','rpcrt4']) ) # To link with lib(msi|cabinet|rpcrt4).a
+
+            self.add(Extension('winsound', [os.path.join(pc_srcdir, p)
+                for p in ['winsound.c']],
+                libraries=['winmm']) )
+
         def allow_db_ver(db_ver):
             """Returns a boolean if the given BerkeleyDB version is acceptable.
 
@@ -1660,6 +1678,10 @@ class PyBuildExt(build_ext):
                                    '-framework', 'SystemConfiguration',
                                    '-framework', 'CoreFoundation']))
 
+        if HOST_PLATFORM.startswith(('mingw', 'win')):
+            self.add(Extension('_overlapped', ['overlapped.c'],
+                                   libraries=['ws2_32']))
+
     def detect_compress_exts(self):
         # Andrew Kuchling's zlib module.  Note that some versions of zlib
         # 1.1.3 have security problems.  See CERT Advisory CA-2002-07: