Set default optimisation level

Author: castvoid

CMakeLists.txt

@@ -1,8 +1,14 @@
 cmake_minimum_required(VERSION 3.0)
 project(hwmond)
 
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Release)
+endif()
+
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wno-long-long -pedantic")
+set(CMAKE_CXX_FLAGS_DEBUG "-g")
+set(CMAKE_CXX_FLAGS_RELEASE "-Os")
 
 set(SOURCE_FILES
         hwmond.c cpu_usage.c cpu_usage.h)