Fix Linux compile / math dependency

wasn't redundant in one place

diff --git a/src/Input/FGEventInput.cxx b/src/Input/FGEventInput.cxx
index 058775193ce62ac391adb4e9b0fec5a85c1a0146..4a53a63d0a04ca1dd6ab2bec161d0061797cbbac 100644 (file)
--- a/src/Input/FGEventInput.cxx
+++ b/src/Input/FGEventInput.cxx
@@ -29,6 +29,7 @@
 #include <Main/fg_props.hxx>
 #include <simgear/io/sg_file.hxx>
 #include <simgear/props/props_io.hxx>
+#include <simgear/math/SGMath.hxx>
 #include <Scripting/NasalSys.hxx>
 
 using simgear::PropertyList;