CMakeLists.txt如何包含条件预处理器

时间:2017-10-23 09:45:33

标签: c cmake preprocessor

在cmake中你如何做一个条件预处理器#ifdef #endif

例如,在soruce文件中有一个#ifdef #endif,我想在赞美期间包含此文件?

你会怎么做?

#ifdef LWM2M_WITH_LOGS
#include <inttypes.h>
#define LOG(STR) lwm2m_printf("[%s:%d] " STR "\r\n", __func__ , __LINE__)
#endif

完整的源文件位于: Source file on github

CMakeLists.txt文件位于此处: CMakeLists.txt

1 个答案:

答案 0 :(得分:1)

您可以在CMakeLists.txt中添加选项:

option (WITH_LOGS "Use reach logging." OFF)
if (WITH_LOGS)
    # Do some related work (if you need),
    # ...
    # and add definition for compiler 
    target_compile_definitions (lwm2mclient PRIVATE -DLWM2M_WITH_LOGS)
endif ()

配置您的项目:

cmake -DWITH_LOGS=ON {path-to-CMakeLists.txt}
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