PATCH: *-*-freebsd* under new <limits>

[Loren James Rittle]

Posted to libstdc++ already.  Now, approved and applied.  Bootstrapped
and checked on i386-*-freebsd*.

18_support/numeric_limits.cc still fails on i386-unknown-freebsd4.3
but now only due (?) to extra precision in `long double' compared to
the limits expressed in the <float.h> system header file.

	* config/cpu/i386/bits/limits.h (__glibcpp_long_double_bits): Only
	define if not already provided by per-OS file.
	* config/os/bsd/freebsd/bits/os_defines.h (__glibcpp_long_double_bits):
	Define.

Index: libstdc++-v3/config/cpu/i386/bits/limits.h
===================================================================
RCS file: /cvs/gcc/egcs/libstdc++-v3/config/cpu/i386/bits/limits.h,v
retrieving revision 1.2
diff -c -r1.2 limits.h
*** limits.h	2001/08/13 22:26:07	1.2
--- limits.h	2001/08/22 04:55:54
***************
*** 28,33 ****
--- 28,36 ----
  #ifndef _GLIBCPP_CPU_LIMITS
  #define _GLIBCPP_CPU_LIMITS 1
  
+ // Some operating systems set this
+ #ifndef __glibcpp_long_double_bits
  #define __glibcpp_long_double_bits 80
+ #endif
  
  #endif
Index: libstdc++-v3/config/os/bsd/freebsd/bits/os_defines.h
===================================================================
RCS file: /cvs/gcc/egcs/libstdc++-v3/config/os/bsd/freebsd/bits/os_defines.h,v
retrieving revision 1.2
diff -c -r1.2 os_defines.h
*** os_defines.h	2001/06/12 23:09:05	1.2
--- os_defines.h	2001/08/22 04:55:54
***************
*** 35,40 ****
--- 35,42 ----
  /* System-specific #define, typedefs, corrections, etc, go here.  This
     file will come before all others. */
  
+ #define __glibcpp_long_double_bits __glibcpp_double_bits
+ 
  #define _GLIBCPP_AVOID_FSEEK 1
  
  #endif