From: James Turner <zakalawe@mac.com>
Date: Tue, 22 Jan 2013 17:53:51 +0000 (+0100)
Subject: Keep Linux happy.
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=691be54ca2b4d76f2e32f165c2513727c32a4de7;p=simgear.git

Keep Linux happy.
---

diff --git a/simgear/structure/StateMachine.hxx b/simgear/structure/StateMachine.hxx
index 34fb84e1..7e9f4be5 100644
--- a/simgear/structure/StateMachine.hxx
+++ b/simgear/structure/StateMachine.hxx
@@ -23,6 +23,7 @@
 #define SIMGEAR_STATE_MACHINE_H
 
 #include <memory>
+#include <string>
 
 #include <simgear/structure/SGReferenced.hxx>
 #include <simgear/structure/SGSharedPtr.hxx>