X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fprops%2Fprops.hxx;h=8cf38e6da7954becd375207277a69e56381e837f;hb=708ae35068499af33329f9db91f55441f4956acb;hp=e870f4407bbd5c76d90a3b18829a49636f495dde;hpb=3a0fbae4d90187d96eb991a7d7dccc339a3bcb48;p=simgear.git

diff --git a/simgear/props/props.hxx b/simgear/props/props.hxx
index e870f440..8cf38e6d 100644
--- a/simgear/props/props.hxx
+++ b/simgear/props/props.hxx
@@ -760,7 +760,10 @@ public:
     REMOVED = 8,
     TRACE_READ = 16,
     TRACE_WRITE = 32,
-    USERARCHIVE = 64
+    USERARCHIVE = 64,
+    PRESERVE = 128
+    // beware: if you add another attribute here,
+    // also update value of "LAST_USED_ATTRIBUTE".
   };