[CMake] put headers in library definition

CMakeLists.txt

@@ -76,8 +76,7 @@ ENDIF (NOT (\"${CMAKE_VERBOSITY_LEVEL}\" STREQUAL \"\"))
 #include_directories(${Boost_INCLUDE_DIRS})
 #link_directories(${Boost_LIBRARY_DIRS})
 
-ADD_LIBRARY(${LIBRARY_NAME}
-  SHARED
+SET(${PROJECT_NAME}_SOURCES
   src/debug/debug.cpp
   src/debug/real-time-logger.cpp
   src/debug/logger.cpp
@@ -154,6 +153,9 @@ SET(${PROJECT_NAME}_HEADERS
   include/dynamic-graph/logger.h
 )
 
+ADD_LIBRARY(${LIBRARY_NAME}
+  SHARED ${${PROJECT_NAME}_SOURCES} ${${PROJECT_NAME}_HEADERS})
+
 SET(PUBLIC_HEADER ${${PROJECT_NAME}_HEADERS})
 
 INSTALL(TARGETS ${PROJECT_NAME}