remove obsolete comments

[flightgear.git] / src / Environment / ridge_lift.cxx

diff --git a/src/Environment/ridge_lift.cxx b/src/Environment/ridge_lift.cxx
index 2a26af5af960fef0a9f92bd3ab9980f343962df8..bb461216de5626af37a74b7c3f6584fce00ad422 100644 (file)
--- a/src/Environment/ridge_lift.cxx
+++ b/src/Environment/ridge_lift.cxx
@@ -35,7 +35,7 @@
 #include <Main/util.hxx>
 #include <Scenery/scenery.hxx>
 #include <string>
-#include <math.h>
+#include <cmath>
 #include <simgear/sg_inlines.h>
 
 using std::string;