Defining a HAVE_J0 in config.h for gfortran?

[Joseph S. Myers]

On Wed, 11 Aug 2004, Richard Henderson wrote:

> If they do come out unresolved for a particular system, then they
> do.  Unlike the other intrinsics being discussed, the bessel functions
> are not required for other Fortran standard conformance.  I don't
> know that we should be trying to remedy every deficiency in the
> system libm...

One thing to bear in mind is that there is a draft TR for additional 
<math.h> functions (WG14 N1051) that adds these functions under different 
names, so in future it might be necessary to consider libm with the new 
names but not the old.  But hopefully libgfortran configure can deal with 
that as and when it is needed.

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
    jsm@polyomino.org.uk (personal mail)
    jsm28@gcc.gnu.org (Bugzilla assignments and CCs)