#ifndef _INC_WIN32_PERL5
#define _INC_WIN32_PERL5
+#define _WIN32_WINNT 0x0400 /* needed for TryEnterCriticalSection() etc. */
+
#if defined(PERL_OBJECT) || defined(PERL_IMPLICIT_SYS) || defined(PERL_CAPI)
# define DYNAMIC_ENV_FETCH
# define ENV_HV_NAME "___ENV_HV_NAME___"
# endif
#endif
-#ifndef _O_NOINHERIT
-# define _O_NOINHERIT 0x0080
-# ifndef _NO_OLDNAMES
-# define O_NOINHERIT _O_NOINHERIT
-# endif
-#endif
-
#endif /* __MINGW32__ */
/* compatibility stuff for other compilers goes here */