fix

Author: facontidavide

tests/CMakeLists.txt

@@ -54,6 +54,6 @@ else()
 
 endif()
 
-target_link_libraries(behaviortree_cpp_test ${BTCPP_LIBRARY} bt_sample_nodes)
+target_link_libraries(behaviortree_cpp_test ${BTCPP_LIBRARY} bt_sample_nodes foonathan::lexy)
 target_include_directories(behaviortree_cpp_test PRIVATE include ${PROJECT_SOURCE_DIR}/3rdparty)
 target_compile_definitions(behaviortree_cpp_test PRIVATE BT_TEST_FOLDER="${CMAKE_CURRENT_SOURCE_DIR}")