diff --git a/software/include/base/stdio.h b/software/include/base/stdio.h
index 58c908ec4..91f59d7ad 100644
--- a/software/include/base/stdio.h
+++ b/software/include/base/stdio.h
@@ -31,6 +31,18 @@ typedef int dev_t;
 #define EOF -1
 #endif
 
+#ifndef SEEK_SET
+#define SEEK_SET	0
+#endif
+
+#ifndef SEEK_CUR
+#define SEEK_CUR	1
+#endif
+
+#ifndef SEEK_END
+#define SEEK_END	2
+#endif
+
 typedef int FILE;
 
 extern FILE *stdin;
@@ -51,4 +63,8 @@ int ferror(FILE *stream);
 int feof(FILE *stream);
 int fclose(FILE *fp);
 
+int fseek(FILE *stream, long offset, int whence);
+long ftell(FILE *stream);
+
+
 #endif /* __STDIO_H */