Make the Irix compiler happy.

diff --git a/src/ATC/atis.cxx b/src/ATC/atis.cxx
index 6f20fd75062c068367d39b81eb5cb33102c71bb7..e4af76fdb75095bbcb9123e2a9384ffba3bba937 100644 (file)
--- a/src/ATC/atis.cxx
+++ b/src/ATC/atis.cxx
@@ -187,7 +187,7 @@ string FGATIS::get_transmission() {
        }
 
        string rwy_no = runways.search(ident, hdg);
-       if(rwy_no != "NN") {
+       if(rwy_no != (string)"NN") {
            transmission += "  Landing and departing runway ";
            transmission += rwy_no;
            //cout << "in atis.cxx, r.rwy_no = " << rwy_no << " r.id = " << r->id << " r.heading = " << r->heading << endl;