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-rw-r--r--firmware/common/dir.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/firmware/common/dir.h b/firmware/common/dir.h
index 7f37d08..e03d509 100644
--- a/firmware/common/dir.h
+++ b/firmware/common/dir.h
@@ -57,9 +57,13 @@ typedef struct DIRtag
#endif // WIN32
#endif // SIMULATOR
+#ifndef DIRFUNCTIONS_DEFINED
+
extern DIR* opendir(char* name);
extern int closedir(DIR* dir);
extern struct dirent* readdir(DIR* dir);
+#endif /* DIRFUNCTIONS_DEFINED */
+
#endif