From c6e239410fcc24e73eb239b391b5670f7ec41c2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B5=D0=B9?=
 <alexey.pawlow@gmail.com>
Date: Thu, 17 Jun 2021 18:51:19 +0530
Subject: [PATCH 009/N] MINGW init system calls
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

Co-authored-by: Алексей <alexey.pawlow@gmail.com>
---
 Modules/Setup           |  1 -
 Modules/Setup.config.in |  3 +++
 Modules/posixmodule.c   | 29 +++++++++++++++++++++++++----
 configure.ac            |  8 ++++++++
 4 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/Modules/Setup b/Modules/Setup
index 02cfb67..6b6926d 100644
--- a/Modules/Setup
+++ b/Modules/Setup
@@ -101,7 +101,6 @@ PYTHONPATH=$(COREPYTHONPATH)
 # This only contains the minimal set of modules required to run the
 # setup.py script in the root of the Python source tree.
 
-posix -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal posixmodule.c # posix (UNIX) system calls
 errno errnomodule.c			# posix (UNIX) errno values
 pwd pwdmodule.c				# this is needed to find out the user's home dir
 					# if $HOME is not set
diff --git a/Modules/Setup.config.in b/Modules/Setup.config.in
index 5c1299d..9b364fe 100644
--- a/Modules/Setup.config.in
+++ b/Modules/Setup.config.in
@@ -3,3 +3,6 @@
 # The purpose of this file is to conditionally enable certain modules
 # based on configure-time options.
 
+# init system calls(posix/nt/...) for INITFUNC (used by makesetup)
+@INITSYS@ -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal posixmodule.c
+
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index c984e2e..3f3e1f3 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -310,6 +310,27 @@ corresponding Unix manual entries for more information on calls.");
 #    define HAVE_CWAIT      1
 #    define HAVE_FSYNC      1
 #    define fsync _commit
+#  elif defined(__MINGW32__)	/* GCC for windows hosts */
+/* getlogin is detected by configure on mingw-w64 */
+#    undef HAVE_GETLOGIN
+/*#    define HAVE_GETCWD     1 - detected by configure*/
+#    define HAVE_GETPPID    1
+#    define HAVE_GETLOGIN   1
+#    define HAVE_SPAWNV     1
+#    define HAVE_WSPAWNV    1
+#    define HAVE_WEXECV     1
+/*#    define HAVE_EXECV	     1 - detected by configure*/
+#    define HAVE_PIPE	     1
+#    define HAVE_POPEN	     1
+#    define HAVE_SYSTEM	   1
+#    define HAVE_CWAIT      1
+#    define HAVE_FSYNC      1
+#    define fsync _commit
+#    include <windows.h>
+#    include <winioctl.h>
+#    ifndef _MAX_ENV
+#      define _MAX_ENV	32767
+#    endif
 #  else
      /* Unix functions that the configure script doesn't check for */
 #    ifndef __VXWORKS__
@@ -410,7 +431,7 @@ extern char        *ctermid_r(char *);
 #  endif
 #endif
 
-#ifdef _MSC_VER
+#ifdef MS_WINDOWS
 #  ifdef HAVE_DIRECT_H
 #    include <direct.h>
 #  endif
@@ -432,7 +453,7 @@ extern char        *ctermid_r(char *);
 #  include <shellapi.h>           // ShellExecute()
 #  include <lmcons.h>             // UNLEN
 #  define HAVE_SYMLINK
-#endif /* _MSC_VER */
+#endif /* MS_WINDOWS */
 
 #ifndef MAXPATHLEN
 #  if defined(PATH_MAX) && PATH_MAX > 1024
@@ -1521,9 +1542,9 @@ win32_get_reparse_tag(HANDLE reparse_point_handle, ULONG *reparse_tag)
 ** man environ(7).
 */
 #include <crt_externs.h>
-#elif !defined(_MSC_VER) && (!defined(__WATCOMC__) || defined(__QNX__) || defined(__VXWORKS__))
+#elif !defined(MS_WINDOWS) && (!defined(__WATCOMC__) || defined(__QNX__) || defined(__VXWORKS__))
 extern char **environ;
-#endif /* !_MSC_VER */
+#endif /* !MS_WINDOWS */
 
 static PyObject *
 convertenviron(void)
diff --git a/configure.ac b/configure.ac
index f335c48..19c3ec2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -601,6 +601,14 @@ then
   AC_DEFINE(_INCLUDE__STDC_A1_SOURCE, 1, Define to include mbstate_t for mbrtowc)
 fi
 
+AC_MSG_CHECKING([for init system calls])
+AC_SUBST(INITSYS)
+case $host in
+  *-*-mingw*)	INITSYS=nt;;
+  *)		INITSYS=posix;;
+esac
+AC_MSG_RESULT([$INITSYS])
+
 # Record the configure-time value of MACOSX_DEPLOYMENT_TARGET,
 # it may influence the way we can build extensions, so distutils
 # needs to check it
-- 
2.32.0