Index: CMakeLists.txt
===================================================================
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,17 +24,17 @@ pkg_check_modules(SND sndfile REQUIRED)
 include_directories( ${SND_INCLUDE_DIRS}  )
 #target_link_libraries( avtkDemo ${CAIRO_LIBRARIES}  )
 
-SET(CMAKE_SHARED_LINKER_FLAGS "-fPIC -shared -L./src/avtk -Wl,--no-undefined")
-SET(CMAKE_C_FLAGS "-g -Wall -O1 -Wno-unused-variable")
-SET(CMAKE_CXX_FLAGS "-g -Wall -O1 -Wno-unused-variable -ftree-vectorize")
+SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fPIC -shared -L./src/avtk -Wl,--no-undefined")
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall  -Wno-unused-variable")
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall  -Wno-unused-variable -ftree-vectorize")
 
 
 # DSP sources
 FILE(GLOB sources src/dsp/*.cxx src/dsp/rr/*.cxx  src/dsp/eq/*.cc )
 
 IF(BUILD_SSE)
-  SET(CMAKE_C_FLAGS "-msse2 -mfpmath=sse")
-  SET(CMAKE_CXX_FLAGS "-msse2 -mfpmath=sse")
+	SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse2 -mfpmath=sse")
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse2 -mfpmath=sse")
 ENDIF()
 
 IF(BUILD_GUI)