I am having some problems with incorrect results with configure detecting
function prototypes on Solaris 2.5. What is happening is configure is not
detecting that these exist, when they do, and is therefore causing an
mismatched declaration to be inserted.

I have never had to look in to how configure makes these checks, but I
suppose that I need to, to contribute back the appropriate fixes.

Can anyone point me to a resource explaining how these test work?

Thanks.

-- 
One of the main causes of the fall of the roman empire was that, lacking
zero, they had no way to indicate successful termination of their C
programs.