commradio: improvements for atis speech

[flightgear.git] / utils / fgviewer / Drawable.cxx

diff --git a/utils/fgviewer/Drawable.cxx b/utils/fgviewer/Drawable.cxx
index 8d2f0a8d89db1fb1ee8b4409815a00a17ea9f764..87712c9fc9eafcb299bfe52f51c4a3851adb188b 100644 (file)
--- a/utils/fgviewer/Drawable.cxx
+++ b/utils/fgviewer/Drawable.cxx
@@ -24,6 +24,8 @@
 
 #include "Viewer.hxx"
 
+#include <simgear/structure/SGWeakPtr.hxx>
+
 namespace fgviewer  {
 
 class Drawable::_ResizedCallback : public osg::GraphicsContext::ResizedCallback {