[cmake] Fix target_link_libraries to fix the link dependencies and interface.

This avoid unnecessary target_include_directories.

tests/CMakeLists.txt

@@ -115,13 +115,13 @@ FOREACH(path ${tests})
   GET_FILENAME_COMPONENT(test ${path} NAME)
   ADD_UNIT_TEST(${test} ${path}.cpp)
 
-  TARGET_LINK_LIBRARIES(${test} ${PROJECT_NAME} ${Boost_LIBRARIES}
+  TARGET_LINK_LIBRARIES(${test}
+    PUBLIC
+    ${PROJECT_NAME}
+    ${Boost_LIBRARIES}
     ${TEST_${test}_LIBS} ${TEST_${test}_EXT_LIBS}
     dynamic-graph::dynamic-graph)
 
-  TARGET_INCLUDE_DIRECTORIES(${test}
-    SYSTEM PUBLIC ${Boost_INCLUDE_DIRS})
-
   IF(UNIX)
     TARGET_LINK_LIBRARIES(${test} ${CMAKE_DL_LIBS})
   ENDIF(UNIX)