[libc] Remove Kconfig warning
@@ -8,10 +8,9 @@ config RT_USING_PTHREADS
bool "Enable pthreads APIs"
default n
-if RT_USING_LIBC
+if RT_USING_LIBC && RT_USING_DFS
config RT_USING_POSIX
bool "Enable POSIX layer for poll/select, stdin etc"
- select RT_USING_DFS
select RT_USING_DFS_DEVFS
default y
