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-This folder is "common" for armlibc newlibc and dlib. It's not "common" for minilibc. \ No newline at end of file
+# Attention :
+
+1. This folder is "common" for armlibc newlibc and dlib. It's not "common" for minilibc.
+
+2. If you want to add new .c files, please do not forget to fix SConscript file too. eg:
+
+```python
+if GetDepend('RT_USING_POSIX') == False:
+ SrcRemove(src, ['unistd.c'])
+``` \ No newline at end of file