X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fstructure%2Fcommands.hxx;h=0825ffd9fc58c3c97b966d3d498dd11892acd1a6;hb=f1f0fa0aa95c2f1562fa9c09365baf8b2b55bfc7;hp=21f44963500dff42f180f2391dffe4de0aee7030;hpb=d4c7e950927b1e19a7a7622a7919f32233a6b7a8;p=simgear.git

diff --git a/simgear/structure/commands.hxx b/simgear/structure/commands.hxx
index 21f44963..0825ffd9 100644
--- a/simgear/structure/commands.hxx
+++ b/simgear/structure/commands.hxx
@@ -17,6 +17,8 @@
 #include <map>
 #include <vector>
 
+#include <OpenThreads/Mutex>
+
 #include <simgear/props/props.hxx>
 
 using std::string;
@@ -109,6 +111,8 @@ private:
   typedef map<string,command_t> command_map;
   command_map _commands;
 
+  static OpenThreads::Mutex _instanceMutex;
+
 };
 
 #endif // __COMMANDS_HXX