ESTALE is not defined on all systems (e.g Windows)

diff --git a/system.h b/system.h
index ca17b493ad4dc5e3bfbd59b35589b2df37fd2bd4..dd11f2e50f0f7c3b2a0e095a8ba6714d4f78540a 100644 (file)
--- 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