remove support for non-ANSI compilation

*** 22,31 ****
--- 22,33 ----
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
  
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright (c) 1998-1999, by Sun Microsystems, Inc.
   * All rights reserved.
   */
  
  /*
*** 41,53 ****
   */
  
  #ifndef _ISO_SIGNAL_ISO_H
  #define _ISO_SIGNAL_ISO_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- /* SVr4.0 1.5.3.4 */
- 
  #include <sys/iso/signal_iso.h>
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
--- 43,52 ----
*** 56,81 ****
  namespace std {
  #endif
  
  typedef int     sig_atomic_t;
  
- #if defined(__STDC__)
- 
  #ifdef __cplusplus
  extern "C" SIG_PF signal(int, SIG_PF);
  #else
  extern void (*signal(int, void (*)(int)))(int);
  #endif
  extern int raise(int);
  
- #else /* __STDC__ */
- 
- extern  void(*signal())();
- extern int raise();
- 
- #endif /* __STDC__ */
- 
  #if __cplusplus >= 199711L
  }
  #endif /* end of namespace std */
  
  #ifdef  __cplusplus
--- 55,71 ----