1 files changed, 4 insertions, 0 deletions
diff --git a/system.h b/system.h
index ca17b493..dd11f2e5 100644
--- a/system.h
+++ b/system.h
@@ -51,6 +51,10 @@
 
 extern char **environ;
 
+#ifndef ESTALE
+#define ESTALE -1
+#endif
+
 #if !HAVE_VSNPRINTF
   int rpl_vsnprintf(char *, size_t, const char *, va_list);
   #define vsnprintf rpl_vsnprintf