mingw/mingw-packages/mingw-w64-python-pywin32/003-seh.patch

--- 000/win32/src/win32apimodule.cpp	2019-07-18 09:05:08.224088200 +0300
+++ 001/win32/src/win32apimodule.cpp	2018-09-28 09:32:03.000000000 +0300
@@ -707,7 +707,7 @@ static PyObject *PyFindCloseChangeNotification(PyObject *self, PyObject *args)
 }
 
 // @pymethod string|win32api|FormatMessage|Returns an error message from the system error file.
-static PyObject *PyFormatMessageA(PyObject *self, PyObject *args)
+__attribute__((optimize("O0"), noinline)) static PyObject *PyFormatMessageA(PyObject *self, PyObject *args)
 {
     int errCode = 0;
     // @pyparm int|errCode|0|The error code to return the message for,  If this value is 0, then GetLastError() is
@@ -795,6 +795,7 @@ static PyObject *PyFormatMessageA(PyObject *self, PyObject *args)
         {
             baccessviolation = TRUE;
         }
+        __except_end
         PyW32_END_ALLOW_THREADS
     }
 
@@ -819,7 +818,7 @@ cleanup:
 }
 
 // @pymethod <o PyUnicode>|win32api|FormatMessageW|Returns an error message from the system error file.
-static PyObject *PyFormatMessageW(PyObject *self, PyObject *args)
+__attribute__((optimize("O0"), noinline)) static PyObject *PyFormatMessageW(PyObject *self, PyObject *args)
 {
     int errCode = 0;
     // Accept just the error code
@@ -902,6 +913,7 @@ static PyObject *PyFormatMessageW(PyObject *self, PyObject *args)
         {
             baccessviolation = TRUE;
         }
+        __except_end
         PyW32_END_ALLOW_THREADS
     }
 
@@ -5555,7 +5553,7 @@ static PyObject *PyApply(PyObject *self, PyObject *args)
         Py_XDECREF(exc_type);
         Py_XDECREF(exc_value);
         ret = NULL;
-    }
+    } __except_end
     return ret;
     // @comm Calls the specified function in a manner similar to
     // the built-in function apply(), but allows Win32 exceptions
--- 000/com/win32com/src/include/PythonCOM.h	2020-06-13 08:39:03.000000000 +0300
+++ 001/com/win32com/src/include/PythonCOM.h	2020-06-20 13:10:05.609363700 +0300
@@ -111,8 +111,6 @@
 #ifdef __MINGW32__
 // Special Mingw32 considerations.
 #define NO_PYCOM_ENUMSTATPROPSTG
-#define __try try
-#define __except catch
 #include <olectl.h>
 
 #endif  // __MINGW32__
--- 000/com/win32comext/mapi/src/mapi.i	2020-06-13 08:39:03.000000000 +0300
+++ 001/com/win32comext/mapi/src/mapi.i	2020-06-20 13:10:05.609363700 +0300
@@ -129,6 +129,7 @@
 		PyWin_SetAPIError("MAPIUninitialize", ERROR_INVALID_HANDLE);
 		rc = NULL;
 	}
+	__except_end
 	return rc;
 }
 
--- 000/com/win32comext/shell/src/shell.cpp	2020-06-13 08:39:03.000000000 +0300
+++ 001/com/win32comext/shell/src/shell.cpp	2020-06-20 14:15:11.188333200 +0300
@@ -258,16 +258,13 @@
             pidl = _ILNext(pidl);
         }
     }
-#if defined(__MINGW32__) || defined(MAINWIN)
-    catch (...)
-#else
     __except (EXCEPTION_EXECUTE_HANDLER)
-#endif
     {
         Py_DECREF(ret);
         PyErr_SetString(PyExc_ValueError, "This string is an invalid PIDL (win32 exception unpacking)");
         ret = NULL;
     }
+    __except_end
     if (bFreeSystemPIDL)
         CoTaskMemFree((void *)pidl_free);
     return ret;