diff --git a/CMakeLists.txt b/CMakeLists.txt
index 342de95cac9a6ece010bdd11b54e8de0c434bb01..84fa46f15f98fa122fbf8da681fa2f7fb942584b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -77,6 +77,7 @@ else()
 endif()
 
 if(CMAKE_BUILD_TYPE MATCHES Debug)
+	ADD_DEFINITIONS(-O0)
 	ADD_DEFINITIONS(-ggdb)
 	ADD_DEFINITIONS(-DDEBUG)
 	ADD_DEFINITIONS(-Wall)
@@ -108,10 +109,10 @@ include_directories(${Boost_INCLUDE_DIRS})
 
 ADD_SUBDIRECTORY(src)
 ADD_SUBDIRECTORY(include)
-ADD_SUBDIRECTORY(examples)
+#ADD_SUBDIRECTORY(examples)
 ADD_SUBDIRECTORY(spectrum)
 ADD_SUBDIRECTORY(backends)
-ADD_SUBDIRECTORY(tests)
+#ADD_SUBDIRECTORY(tests)
 
 if(DOXYGEN_FOUND)
 	message("Docs              : yes")