dnl MacOS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>.
AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [#include <math.h>])
else
+ HAVE_DECL_LDEXPL=0
AC_LIBOBJ([ldexpl])
fi
+ AC_SUBST([LDEXPL_LIBM])
])
dnl Test whether ldexpl() works on finite numbers (this fails on AIX 5.1).