/usr/ccs/bin/ld: Unsatisfied symbols:
   isinf (code)

Solution/Workaround

This is caused by an incompatibility in HP-UX 11. The Eloquence A.06.3x library was build on HP-UX 10.20 and the HP-UX 11 libm (math library) is incompatible to libraries which were compiled on previous HP-UX versions. The definition of isinf() has changed.

Below is a simple fix for HP-UX 11. Save it to the file libmfix.c and add it to your makefile (so it is compiled and linked).

/*
   libmfix.c

   This file fixes an incompatibility with the Eloquence libeloq.a
   library and the HP-UX 11.x libm library.
   The libeloq.a libraray was compiled on HP-UX 10.20 and contains
   a reference to the isinf() function. with HP-UX 11.x the isinf()
   function is no longer defined in the libm library but was turned
   into a macro.
*/

#if defined(__hpux)

#include <math.h>
#if defined(isinf)
#undef isinf

#ifdef __STDC__
int isinf(double n)
#else
int isinf(n)
double n;
#endif
{
   return _ISINF(n);
}

#endif
#endif