remove support for non-ANSI compilation

@@ -20,27 +20,25 @@
  * CDDL HEADER END
  */
 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
 /*        All Rights Reserved   */
 
-
 /*
+ * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ *
  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
 #ifndef _SYS_VARARGS_H
 #define _SYS_VARARGS_H
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"        /* UCB 4.1 83/05/03 */
-
 /*
  * This header defines the Solaris system definitions for variable
  * argument lists.  For the most part, it follows the definitions of
  * ISO C 1999.  It does not follow the namespace rules for ISO C++
- * 1998.  For legacy support, it also defines the pre-standard variable
- * argument definitions.
+ * 1998.
  *
  * The varargs definitions within this header are defined in terms of
  * implementation definitions.  These implementation definitions reside
  * in <sys/va_impl.h>.  This organization enables protected use of
  * the implementation by other standard headers without introducing

@@ -56,36 +54,20 @@
 #ifndef _VA_LIST
 #define _VA_LIST
 typedef __va_list va_list;
 #endif
 
-#if defined(__STDC__)
 /*
- * When __STDC__ is defined, this file provides stdarg semantics despite
- * the name of the file.
+ * This file provides stdarg semantics despite the name of the file.
  */
 
 #define va_start(list, name)    __va_start(list, name)
 #define va_arg(list, type)      __va_arg(list, type)
 #define va_copy(to, from)       __va_copy(to, from)
 #define va_end(list)            __va_end(list)
 
-#else   /* ! __STDC__ */
-/*
- * In the absence of __STDC__, this file provides traditional varargs
- * semantics.
- */
 
-#define va_alist                __builtin_va_alist
-#define va_dcl                  __va_alist_type va_alist;
-#define va_start(list)          __va_start(list, va_alist)
-#define va_arg(list, type)      __va_arg(list, type)
-#define va_copy(to, from)       __va_copy(to, from)
-#define va_end(list)            __va_end(list)
-
-#endif  /* __STDC__ */
-
 #ifdef  __cplusplus
 }
 #endif
 
 #endif  /* _SYS_VARARGS_H */