dnl Test whether fabsf() exists. We cannot assume that fabsf(), if it
dnl exists, is defined in the same library as fabs(). This is not the case
dnl on FreeBSD, NetBSD, OpenBSD.
dnl Test whether fabsf() exists. We cannot assume that fabsf(), if it
dnl exists, is defined in the same library as fabs(). This is not the case
dnl on FreeBSD, NetBSD, OpenBSD.