With 2.65 on OSX, libradsec isn't linked correctly with
libfreeradius-radius and libevent-core. The effect is that a program
linking with -lradsec need to add the other two libraries on the link
line as well.
Whether 2.66 or 2.67 works on OSX is unknown.
# -*- Autoconf -*- script for libradsec.
-AC_PREREQ([2.65])
+AC_PREREQ([2.68]) dnl Fwiw, 2.65 is ok on Ubuntu.
AC_INIT([libradsec], [0.0.1-dev], [linus+libradsec@nordu.net])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE