Issue #5204: Define _PyVerify_fd on VC6 to make
test_fdopen (test_os.py) pass.
diff --git a/Include/fileobject.h b/Include/fileobject.h
index 1fed47b..77903be 100644
--- a/Include/fileobject.h
+++ b/Include/fileobject.h
@@ -75,6 +75,9 @@
* Visual Studio 2005
*/
int _PyVerify_fd(int fd);
+#elif defined _MSC_VER && _MSC_VER >= 1200
+/* fdopen doesn't set errno EBADF and crashes for large fd on debug build */
+#define _PyVerify_fd(fd) (_get_osfhandle(fd) >= 0)
#else
#define _PyVerify_fd(A) (1) /* dummy */
#endif