dix: add deletable field to PropertyRec

Preparational step for later using this struct for XI.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

dix/property_list.c

@@ -39,6 +39,7 @@ PropertyPtr dixPropertyCreate(Atom type, Atom name, int format, size_t len,
     pProp->value.format = format;
     pProp->value.size = len;
     pProp->value.type = type;
+    pProp->deletable = TRUE;
 
     return pProp;
 }

include/propertyst.h

@@ -61,6 +61,7 @@ typedef struct _Property {
     ATOM propertyName;
     PropertyValueRec value;
     PrivateRec *devPrivates;
+    Bool deletable;
 } PropertyRec;
 
 #endif                          /* PROPERTYSTRUCT_H */