get things compiling on FreeBSD (7.1) - add PTHREAD_LIBS to the necessary execs - quell warning about NULL format string in die - check for log and log2 funcs, work-around for missing log2 - add -D option to gperf to avoid warnings/errors about hash collisions - remove const from getopt wrappers to avoid errors about discarded qualifiers - fix bug in acx_pthread.m4, add pthread ld flags to PTHREAD_LIBS, not PTHREAD_CFLAGS - wrap #include <alloca.h> in HAVE_ALLOCA_H - add lots of UNIV_INTERN attributes to handler func decls - include missing header files (net-realted) in a couple places