Add required include for lower_bound

diff --git a/src/Navaids/positioned.cxx b/src/Navaids/positioned.cxx
index 2d2309fed203c7617939dc5cec0c063ec80ff72a..e2a5b8d1dfaf59a4f993b0fdcd1cfb3c72354033 100644 (file)
--- a/src/Navaids/positioned.cxx
+++ b/src/Navaids/positioned.cxx
@@ -24,6 +24,7 @@
 
 #include <map>
 #include <set>
+#include <algorithm>
 
 #include <simgear/math/sg_geodesy.hxx>