X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FModel%2Fmodel_panel.cxx;h=eef538cb0a41c7b809e7e3a2078afdf3066c3090;hb=f9445874a02689cbd9a0197c5aac7ffeab1436ac;hp=230413908e65221f3a3a5a1d4d1472b3be3d9ebb;hpb=fd83c9fa22e339c38e998687d93ffd9bfcf379ff;p=flightgear.git

diff --git a/src/Model/model_panel.cxx b/src/Model/model_panel.cxx
index 230413908..eef538cb0 100644
--- a/src/Model/model_panel.cxx
+++ b/src/Model/model_panel.cxx
@@ -14,6 +14,7 @@
 #include <simgear/props/props.hxx>
 #include <simgear/scene/model/modellib.hxx>
 #include <simgear/scene/util/SGNodeMasks.hxx>
+#include <simgear/math/SGMath.hxx>
 
 #include "panelnode.hxx"
 #include "model_panel.hxx"