RFA: Change prototype for nan() in mathconf.h

[Nick Clifton]

Hi Guys,

  May I apply the following patch please ?  It updates the prototype
  for nan() in libstdc++-v3/libmath/mathconf.h so that it takes a
  "const char *" argument, as specified in:

    http://www.opengroup.org/onlinepubs/007904975/functions/nan.html  

Cheers
        Nick

2003-12-19  Nick Clifton  <nickc@redhat.com>

	* libmath/mathconf.h (NAN): Add argument.
        (nan): Add a const char * argument to protoype.

Index: libstdc++-v3/libmath/mathconf.h
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/libmath/mathconf.h,v
retrieving revision 1.8
diff -c -3 -p -r1.8 mathconf.h
*** libstdc++-v3/libmath/mathconf.h	16 Aug 2001 12:49:19 -0000	1.8
--- libstdc++-v3/libmath/mathconf.h	19 Dec 2003 10:48:20 -0000
*************** typedef int Int64_t __attribute ((mode (
*** 80,87 ****
  #endif
  
  #ifndef NAN
! # define NAN (nan())
! double nan (void);
  #endif
  
  #ifdef HAVE_IEEEFP_H
--- 80,87 ----
  #endif
  
  #ifndef NAN
! # define NAN (nan (""))
! double nan (const char *);
  #endif
  
  #ifdef HAVE_IEEEFP_H