MacOS updates.
diff --git a/e_os.h b/e_os.h
index 69068bd..0c4fcf8 100644
--- a/e_os.h
+++ b/e_os.h
@@ -88,6 +88,8 @@
# define NO_SYS_TYPES_H
# define NO_CHMOD
# define NO_SYSLOG
+# undef DEVRANDOM
+# define GETPID_IS_MEANINGLESS
# endif
#endif
@@ -111,6 +113,10 @@
# endif
#endif
+#if defined(MSDOS) && !defined(GETPID_IS_MEANINGLESS)
+# define GETPID_IS_MEANINGLESS
+#endif
+
#ifdef WIN32
#define get_last_sys_error() GetLastError()
#define clear_sys_error() SetLastError(0)
@@ -128,7 +134,7 @@
#define readsocket(s,b,n) recv((s),(b),(n),0)
#define writesocket(s,b,n) send((s),(b),(n),0)
#define EADDRINUSE WSAEADDRINUSE
-#elif MAC_OS_pre_X
+#elif defined(MAC_OS_pre_X)
#define get_last_socket_error() errno
#define clear_socket_error() errno=0
#define closesocket(s) MacSocket_close(s)
@@ -245,8 +251,10 @@
# endif
# else
/* !defined VMS */
-# include OPENSSL_UNISTD
-# include <sys/types.h>
+# include OPENSLL_UNISTD
+# ifndef NO_SYS_TYPES_H
+# include <sys/types.h>
+# endif
# define OPENSSL_CONF "openssl.cnf"
# define SSLEAY_CONF OPENSSL_CONF
