Merge pull request #9171 from richardkchapman/compile-break

HPCC-16351 Fix build break

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>

system/security/LdapSecurity/aci.cpp

@@ -591,7 +591,7 @@ public:
 SecAccessFlags NewSec2Sec(NewSecAccessFlags newsec)
 {
     int sec = SecAccess_None;
-    if(newsec == -1)
+    if(newsec == (NewSecAccessFlags) -1)
         return SecAccess_Unavailable;
     if(newsec == NewSecAccess_Full)
         return SecAccess_Full;