<iterator>, <stdlib.h> and <ctype.h> includes required for QNX compiler

src/osgPlugins/OpenFlight/expPrimaryRecords.cpp

@@ -31,6 +31,7 @@
 #include <osgSim/LightPointNode>
 #include <osgSim/ObjectRecordData>
 
+#include <stdlib.h>
 
 // FIXME: This header was copied verbatim from the importer, with the only change
 // being that the symbols it defines are placed in namespace 'fltexp' instead