cppbind.Ghost: clean up a bit

[simgear.git] / simgear / math / SGVec4.hxx

diff --git a/simgear/math/SGVec4.hxx b/simgear/math/SGVec4.hxx
index 6e42d957d8710f9a3a56c85cfa9d0b3ddf41f0bd..301aaca3ccb4ff8df41259100a409d2b50858838 100644 (file)
--- a/simgear/math/SGVec4.hxx
+++ b/simgear/math/SGVec4.hxx
@@ -18,6 +18,8 @@
 #ifndef SGVec4_H
 #define SGVec4_H
 
+#include <iosfwd>
+
 /// 4D Vector Class
 template<typename T>
 class SGVec4 {