add config.cmake.in

test/CMakeLists.txt

@@ -1,14 +1,7 @@
 # 设置编译选项
-if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
-endif()
-
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
 if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Linux")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm -O2")
-endif()
-
-if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm")
 endif()
 
 # 设置可执行文件的输出地址