[Gm2] exp10 woes [Was; Re: Updated report on gm2-2010-02-25 on Solaris 10/sparc]

[john o goyo]

On 26-Feb-10, at 1:28 PM, Gaius Mulley wrote (in part):
> Quite a few errors are to do with unresolved references to:
>
> exp10
> exp10f
> exp10l
>
> do you know which libraries these symbols are found in?  (libm.a ?)

It seems that exp10 is a glibc extension not found on many platforms
(including MacOS X, FreeBSD, AIX, HP-UX 11, and Solaris 10) but found
in most Linux distributions.

Solaris 10 contains exp10 in its libsunmath but this is not accessible
to gcc.  it seems silly but perhaps adding the following to the  
Solaris build
may solve this.

#include <math.h>

double exp10(double x)
{
  return exp(x*M_LN10);
} /* exp10 */

and link with -lm.

(Sigh)
john