X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FSound%2Ffg_sound.hxx;h=c1aaa567998b4aa4545257fb3b6707489fe4459f;hb=198b88ca9b4a4b123b2e9ccdc85ea17eeaea70c6;hp=4d4824bb4ef8ee896aa1a4205a1770a0c5a85875;hpb=0ab97746c842793c3a05933d34e66a8b1e897be1;p=flightgear.git

diff --git a/src/Sound/fg_sound.hxx b/src/Sound/fg_sound.hxx
index 4d4824bb4..c1aaa5679 100644
--- a/src/Sound/fg_sound.hxx
+++ b/src/Sound/fg_sound.hxx
@@ -28,6 +28,8 @@
 #endif
 
 #include <simgear/compiler.h>
+#include <simgear/props/condition.hxx>
+
 #include <Main/fgfs.hxx>
 #include <Main/globals.hxx>
 
@@ -53,6 +55,8 @@ public:
   virtual void unbind ();
   virtual void update (double dt);
 
+  void stop();
+
 protected:
 
   enum { MAXPROP=5 };