diff --git a/indra/newview/llfloateravatarlist.cpp b/indra/newview/llfloateravatarlist.cpp
index fc694ec36..72df6899a 100644
--- a/indra/newview/llfloateravatarlist.cpp
+++ b/indra/newview/llfloateravatarlist.cpp
@@ -365,6 +365,8 @@ static void cmd_toggle_mark(LLAvatarListEntry* entry)
 static void cmd_ar(const LLAvatarListEntry* entry);
 static void cmd_teleport(const LLAvatarListEntry* entry);
 
+const LLUUID& active_owner_or_id(const LLSD& userdata);
+
 namespace
 {
 	typedef LLMemberListener<LLView> view_listener_t;
@@ -381,7 +383,6 @@ namespace
 	{
 		bool handleEvent(LLPointer<LLEvent> event, const LLSD& userdata) override
 		{
-			const LLUUID& active_owner_or_id(const LLSD& userdata);
 			LLFloaterAvatarList::setFocusAvatar(active_owner_or_id(userdata));
 			return true;
 		}
diff --git a/indra/newview/llmeshrepository.cpp b/indra/newview/llmeshrepository.cpp
index 004a08e6f..442b5e6da 100644
--- a/indra/newview/llmeshrepository.cpp
+++ b/indra/newview/llmeshrepository.cpp
@@ -65,6 +65,7 @@
 #include "lluploadfloaterobservers.h"
 #include "aicurl.h"
 
+#include <mutex>
 #include "boost/lexical_cast.hpp"
 
 #ifndef LL_WINDOWS