AC_PROG_CXX
AM_PROG_LIBTOOL
-AC_OUTPUT(Makefile src/Makefile)
+dnl check for doxygen
+AC_PATH_PROG(DOXYGEN, doxygen, $PATH)
+AM_CONDITIONAL(HAVE_DOXYGEN, test -n $DOXYGEN);
+
+AC_OUTPUT(Makefile doc/Doxyfile doc/Makefile src/Makefile libt2n.pc libt2n.spec test/Makefile)