libjava configure question

[Bryce McKinlay]

Andrew Haley wrote:

>Steve Ellcey writes:
> > 
> > So why does fdlibm.h include declarations of sin/pow/sqrt/etc. instead
> > of just including math.h?
>
>Because we don't use the system math libraries.  We don't use them
>because we can't be sure that they conform to Java language
>requirements.
>  
>
I've wondered if there's any reason we couldn't use the system math 
library, provided it is IEEE floating-point compliant. The Math.* 
functions are no longer required to produce identical results on all 
platforms according to the fdlibm algorithms - thats what StrictMath is 
for. In fact GCJ already has the ability to inline Math.* calls directly 
into native FPU instructions in some cases.

Bryce