From 1225e53162aff948e6b3382d9eac50fa85afec7b Mon Sep 17 00:00:00 2001
From: Thomas Geymayer <tomgey@gmail.com>
Date: Sun, 15 Jun 2014 13:52:42 +0200
Subject: [PATCH] pkg: allow 'installed' as filter criterion.

---
 simgear/package/Package.cxx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/simgear/package/Package.cxx b/simgear/package/Package.cxx
index c9e67b4c..9c8a0b80 100644
--- a/simgear/package/Package.cxx
+++ b/simgear/package/Package.cxx
@@ -87,6 +87,11 @@ bool Package::matches(const SGPropertyNode* aFilter) const
             return false;
           }
         }
+        else if (filter_name == "installed") {
+          if (isInstalled() != c->getBoolValue()) {
+            return false;
+          }
+        }
         else
           SG_LOG(SG_GENERAL, SG_WARN, "unknown filter term:" << filter_name);
     } // of filter props iteration