[Bug libstdc++/38384] fails to build cross gcc for target hppa64-hp-hpux11.00 in libstdc++/libmath

[r dot emrich at de dot tecosim dot com]

------- Comment #2 from r dot emrich at de dot tecosim dot com  2008-12-08 17:08 -------
(In reply to comment #1)
> Created an attachment (id=16815)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16815&action=view) [edit]
> preproccesed source
> 
> the following looks weired for me:
> 
> # 31 "/opt/gnu/src/gcc/gcc-4.4.0-test/libstdc++-v3/libmath/stubs.c" 2
> # 1 "../config.h" 1
> # 32 "/opt/gnu/src/gcc/gcc-4.4.0-test/libstdc++-v3/libmath/stubs.c" 2
> 
> 
> 
> 
> 
> float
> ((float)fabs((double)(float)(float x)))
> {
>   return (float) fabs(x);
> }
> 
> 

And this is caused by the following lines in /usr/include/math.h

#    ifdef _PA_RISC
#      define _FPCLASSIFY(x)    
(_IS32(x)?_Fpclassifyf(x)>>1:_Fpclassify(x)>>1)
       extern int _Fpclassify(double);
       extern int _Fpclassifyf(float);
#      ifndef _DISALLOW_MASKING_MACROS
#        define fabsf(x) ((float)fabs((double)(float)(x)))
#      endif
#    else /* __IA64__ */  


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38384