@@ -39,6 +39,31 @@ As a special exception, including RT-Thread RTOS header files in a file, instant
RT-Thread RTOS uses [scons](http://www.scons.org) as its building system. Therefore, please install scons and Python 2.7 firstly.
So far, the RT-Thread scons building system support the command line compiling or generate some IDE's project. There are some option varaibles in the scons building script:
In rtconfig.py file:
*```RTT_CC``` the compiler which you want to use, gcc/keil/iar.
*```EXEC_PATH``` the path of compiler.
In SConstruct file:
```RTT_ROOT``` This variable is the root directory of RT-Thread RTOS. If you build the porting in the bsp directory, you can use the default value. Also, you can set the root directory in ```RTT_ROOT``` environment variable.
When you set these variables correctly, you can use command:
scons
under BSP directory to simplely compile RT-Thread RTOS.
If you want to generate the IDE's project file, firstly you should change the ```RTT_CC``` in the rtconfig.py file. Then use command:
scons --target=mdk/mdk4/iar/cb -s
to generate the project file.
NOTE: RT-Thread scons building system will tailor the system according to your rtconfig.h configuration header file. For example, if you disable the lwIP in the rtconfig.h by commenting the ```#define RT_USING_LWIP```, the generated project file has no lwIP related files.
