This is step "1" of probably "many" in the process of separating out the

[flightgear.git] / src / Sound / fg_sound.hxx

diff --git a/src/Sound/fg_sound.hxx b/src/Sound/fg_sound.hxx
index d8f71357d7de3823f23c436d302ac2f7d5ce4009..c1aaa567998b4aa4545257fb3b6707489fe4459f 100644 (file)
--- 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>