Include unsitd.h in user_property.h for access function

diff --git a/include/user_property.h b/include/user_property.h
index 402f69fbdc99fe51d2a0c6651ab6d60ce0ce7ca0..3075d8f9d0a771394944d854c0d5fd435699eaf6 100644 (file)
--- a/include/user_property.h
+++ b/include/user_property.h
@@ -7,6 +7,8 @@ $Author: faust $
 #ifndef USER_PROPERTY_H
 #define USER_PROPERTY_H
 
+#include <unistd.h> // access
+
 #include <ctime>
 #include <string>
 #include <set>