Update CMakeLists.txt

Author: adonis0147

CMakeLists.txt

@@ -24,6 +24,7 @@ add_library(${PROJECT_NAME} SHARED ${HEADER_FILES} ${SOURCE_FILES})
 if(MSVC)
 	set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /D TRACE_TICK /D PROFILE_TICK")
 else(MSVC)
+	set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_DEBUG")
 	set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -DTRACE_TICK -DPROFILE_TICK")
 endif(MSVC)