diff --git a/cmake/DefaultBuildFlags.cmake b/cmake/DefaultBuildFlags.cmake
new file mode 100644
index 00000000..683767b3
--- /dev/null
+++ b/cmake/DefaultBuildFlags.cmake
@@ -0,0 +1,9 @@
+if (CMAKE_C_COMPILER_ID STREQUAL GNU)
+	set(CMAKE_C_FLAGS_DEBUG_INIT "-g -Og")
+endif()
+if (CMAKE_CXX_COMPILER_ID STREQUAL GNU)
+	set(CMAKE_CXX_FLAGS_DEBUG_INIT "-g -Og")
+endif()
+
+string(REPLACE "-O2" "-O3" CMAKE_C_FLAGS_RELEASE_INIT "${CMAKE_C_FLAGS_RELEASE_INIT}")
+string(REPLACE "-O2" "-O3" CMAKE_CXX_FLAGS_RELEASE_INIT "${CMAKE_CXX_FLAGS_RELEASE_INIT}")