-add_executable(odhcp6c src/odhcp6c.c src/dhcpv6.c src/ra.c src/script.c src/md5.c)
-target_link_libraries(odhcp6c resolv)
+set(LIBRARIES resolv)
+
+if(USE_LIBUBOX)
+ add_definitions(-DUSE_LIBUBOX)
+ set(LIBRARIES ${LIBRARIES} ubox)
+ FIND_PATH(ubox_include_dir libubox/md5.h)
+ INCLUDE_DIRECTORIES(${ubox_include_dir})
+else()
+ set(SOURCES ${SOURCES} src/md5.c)
+endif()
+
+add_executable(odhcp6c ${SOURCES})
+
+target_link_libraries(odhcp6c ${LIBRARIES})