+AC_CHECK_FUNCS(crypt gethostbyname connect flock getpwnam_r getpwuid_r)
+
+
+dnl disable backtrace if we don't want it.
+AC_ARG_WITH(backtrace,
+ [ --with-backtrace enable backtrace dumps in the syslog],
+ [ if test "x$withval" != "xno" ; then
+ CFLAGS="$CFLAGS -rdynamic "
+ LDFLAGS="$LDFLAGS -rdynamic "
+ SERVER_LDFLAGS="$SERVER_LDFLAGS -rdynamic "
+ AC_CHECK_FUNCS(backtrace)
+ fi
+ ]
+)
+
+dnl disable backtrace if we don't want it.
+AC_ARG_WITH(gprof,
+ [ --with-gprof enable profiling],
+ [ if test "x$withval" != "xno" ; then
+ CFLAGS="$CFLAGS -pg "
+ LDFLAGS="$LDFLAGS -pg "
+ SERVER_LDFLAGS="$SERVER_LDFLAGS -pg "
+ fi
+ ]
+)
+
+dnl disable thread table reporting
+AC_ARG_WITH(threadlog,
+ [ --with-threadlog enable logging of thread table],
+ [ if test "x$withval" != "xno" ; then
+ AC_DEFINE(WITH_THREADLOG, [], [Define if you want logging of the thread tables.])
+ fi
+ ]
+)
+