remove support for non-ANSI compilation

*** 18,27 ****
--- 18,29 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*      Copyright (c) 1988 AT&T */
*** 29,40 ****
  
  
  #ifndef _IEEEFP_H
  #define _IEEEFP_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  /*
--- 31,40 ----
*** 67,83 ****
          FP_PZERO = 7,   /* +0.0 */
          FP_NNORM = 8,   /* negative normalized non-zero */
          FP_PNORM = 9    /* positive normalized non-zero */
  } fpclass_t;
  
- #if defined(__STDC__)
  extern fpclass_t fpclass(double);       /* get class of double value */
  extern int      finite(double);
  extern int      unordered(double, double);
- #else
- extern fpclass_t fpclass();     /* get class of double value */
- #endif
  
  /*
   * ROUNDING CONTROL ******************************************
   *
   * At all times, floating-point math is done using one of four
--- 67,79 ----
*** 112,131 ****
          FP_RM = 3       /* round toward minus infinity */
  } fp_rnd;
  
  #endif
  
- #if defined(__STDC__)
  extern fp_rnd   fpsetround(fp_rnd);     /* set rounding mode, return previous */
  extern fp_rnd   fpgetround(void);       /* return current rounding mode */
  
- #else
- extern fp_rnd   fpsetround();           /* set rounding mode, return previous */
- extern fp_rnd   fpgetround();           /* return current rounding mode */
- 
- #endif
- 
  /*
   * EXCEPTION CONTROL *****************************************
   *
   */
  
--- 108,120 ----
*** 180,217 ****
  #define FP_X_DZ         0x02    /* divide-by-zero exception */
  #define FP_X_IMP        0x01    /* imprecise (loss of precision) */
  
  #endif
  
- #if defined(__STDC__)
  extern fp_except fpgetmask(void);               /* current exception mask */
  extern fp_except fpsetmask(fp_except);          /* set mask, return previous */
  extern fp_except fpgetsticky(void);             /* return logged exceptions */
  extern fp_except fpsetsticky(fp_except);        /* change logged exceptions */
  
- #else
- extern fp_except fpgetmask();   /* current exception mask */
- extern fp_except fpsetmask();   /* set mask, return previous */
- extern fp_except fpgetsticky(); /* return logged exceptions */
- extern fp_except fpsetsticky(); /* change logged exceptions */
- 
- #endif
- 
  /*
   * UTILITY MACROS ********************************************
   */
  
- #if defined(__STDC__)
  extern int isnanf(float);
  extern int isnand(double);
  
- #else
- extern int isnand();
- #define isnanf(x)       (((*(long *)&(x) & 0x7f800000L) == 0x7f800000L) && \
-                             ((*(long *)&(x) & 0x007fffffL) != 0x00000000L))
- #endif
- 
  #if defined(__i386) || defined(__amd64)
  
  /*
   * EXCEPTION HANDLING ****************************************
   *
--- 169,190 ----