mmapmodule: disable exceptions handling

`__try` and `__except` are not available in gcc

Author: naveen521kk

Modules/mmapmodule.c

@@ -256,7 +256,7 @@ do {                                                                    \
 } while (0)
 #endif /* UNIX */
 
-#if defined(MS_WINDOWS) && !defined(DONT_USE_SEH)
+#if defined(_MSC_VER) && !defined(DONT_USE_SEH)
 static DWORD
 filter_page_exception(EXCEPTION_POINTERS *ptrs, EXCEPTION_RECORD *record)
 {
@@ -289,7 +289,7 @@ filter_page_exception_method(mmap_object *self, EXCEPTION_POINTERS *ptrs,
 }
 #endif
 
-#if defined(MS_WINDOWS) && !defined(DONT_USE_SEH)
+#if defined(_MSC_VER) && !defined(DONT_USE_SEH)
 #define HANDLE_INVALID_MEM(sourcecode)                                     \
 do {                                                                       \
     EXCEPTION_RECORD record;                                               \
@@ -317,7 +317,7 @@ do {                                                                       \
 } while (0)
 #endif
 
-#if defined(MS_WINDOWS) && !defined(DONT_USE_SEH)
+#if defined(_MSC_VER) && !defined(DONT_USE_SEH)
 #define HANDLE_INVALID_MEM_METHOD(self, sourcecode)                           \
 do {                                                                          \
     EXCEPTION_RECORD record;                                                  \