eliminate unused variable warnings

[Matt Kraai]

Howdy,

If _IEEE_LIBM is defined, GCC warns that o_threshold and
u_threshold are unused.  So don't define them in that case.

This patch has been bootstrapped and regression tested on
powerpc-unknown-linux-gnu.

I only have commit access to the GCC repository.

-- 
Matt Kraai <kraai@alumni.cmu.edu>
Debian GNU/Linux Peon

       * java/lang/w_exp.c (o_threshold, u_threshold): Define only
       if _IEEE_LIBM is undefined.

Index: libjava/java/lang/w_exp.c
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/lang/w_exp.c,v
retrieving revision 1.1.1.1
diff -c -3 -p -r1.1.1.1 w_exp.c
*** libjava/java/lang/w_exp.c	7 Apr 1999 14:52:39 -0000	1.1.1.1
--- libjava/java/lang/w_exp.c	19 May 2003 00:49:01 -0000
*************** PORTABILITY
*** 65,70 ****
--- 65,72 ----
  
  #ifndef _DOUBLE_IS_32BITS
  
+ #ifndef _IEEE_LIBM
+ 
  #ifdef __STDC__
  static const double
  #else
*************** static double
*** 72,77 ****
--- 74,81 ----
  #endif
  o_threshold=  7.09782712893383973096e+02,  /* 0x40862E42, 0xFEFA39EF */
  u_threshold= -7.45133219101941108420e+02;  /* 0xc0874910, 0xD52D3051 */
+ 
+ #endif
  
  #ifdef __STDC__
  	double exp(double x)		/* wrapper exp */