diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3315887..5798578 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,10 @@ SET(CMAKE_BUILD_TYPE "Release")
 include_directories("/usr/local/include")
 link_directories("/usr/local/lib")
 
+#在编译选项中加入c99支持
+add_compile_options(-std=c99)
+message(STATUS "optional:-std=c99") 
+
 add_executable(cmoe cmoe.c)
 
 target_link_libraries(cmoe spb)