替换宏定义

components/cplusplus/Kconfig

@@ -10,7 +10,7 @@ if RT_USING_CPLUSPLUS
         bool "Enable c++11 threading feature support"
         default n
         select RT_USING_LIBC
-        select RT_USING_DFS
+        select RT_LIBC_USING_FILEIO
         select RT_USING_PTHREADS
         select RT_USING_RTC
 

components/utilities/ymodem/ry_sy.c

@@ -17,6 +17,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifndef DFS_USING_POSIX
+#error "Please enable DFS_USING_POSIX"
+#endif
+
 struct custom_ctx
 {
     struct rym_ctx parent;