* sigaction and fileno included. -pedantic would be more appropriate for
* the intended purposes, but we can't prevent users from adding -ansi.
*/
+#if defined(OPENSSL_SYSNAME_VXWORKS)
+#include <sys/types.h>
+#endif
+
+#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 2
#endif
+#endif
#include <signal.h>
#include <stdio.h>
#include <string.h>