remove support for non-ANSI compilation

@@ -17,19 +17,20 @@
  * fields enclosed by brackets "[]" replaced with your own identifying
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  */
+/*
+ * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ */
 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
 /*        All Rights Reserved   */
 
 
 #ifndef _TIUSER_H
 #define _TIUSER_H
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.1   */
-
 /*
  * TLI user interface definitions.
  */
 
 #include <sys/tiuser.h>

@@ -38,15 +39,11 @@
 extern "C" {
 #endif
 
 #if defined(_REENTRANT) || defined(_TS_ERRNO) || \
         _POSIX_C_SOURCE - 0 >= 199506L
-#if defined(__STDC__)
 extern int      *__t_errno(void);
-#else
-extern int      *__t_errno();
-#endif
 #define t_errno (*(__t_errno()))
 #else
 extern int t_errno;
 #endif  /* defined(_REENTRANT) || defined(_TS_ERRNO) */