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-rw-r--r--components/libc/compilers/dlib/fcntl.h0
-rw-r--r--components/libc/compilers/dlib/sys/stat.h0
-rw-r--r--components/libc/compilers/dlib/sys/unistd.h5
3 files changed, 5 insertions, 0 deletions
diff --git a/components/libc/compilers/dlib/fcntl.h b/components/libc/compilers/dlib/fcntl.h
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/components/libc/compilers/dlib/fcntl.h
diff --git a/components/libc/compilers/dlib/sys/stat.h b/components/libc/compilers/dlib/sys/stat.h
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/components/libc/compilers/dlib/sys/stat.h
diff --git a/components/libc/compilers/dlib/sys/unistd.h b/components/libc/compilers/dlib/sys/unistd.h
index 06a46746c0..dbe4f3010d 100644
--- a/components/libc/compilers/dlib/sys/unistd.h
+++ b/components/libc/compilers/dlib/sys/unistd.h
@@ -2,6 +2,11 @@
#define _SYS_UNISTD_H
#ifdef RT_USING_DFS
+
+#define STDIN_FILENO 0 /* standard input file descriptor */
+#define STDOUT_FILENO 1 /* standard output file descriptor */
+#define STDERR_FILENO 2 /* standard error file descriptor */
+
#include <dfs_posix.h>
#else
#define _FREAD 0x0001 /* read enabled */