Move al::deque to a common header

CMakeLists.txt

@@ -610,6 +610,7 @@ set(COMMON_OBJS
     common/albyte.h
     common/alcomplex.cpp
     common/alcomplex.h
+    common/aldeque.h
     common/alfstream.cpp
     common/alfstream.h
     common/almalloc.cpp

al/source.h

@@ -12,6 +12,7 @@
 #include "AL/alc.h"
 
 #include "alcontext.h"
+#include "aldeque.h"
 #include "almalloc.h"
 #include "alnumeric.h"
 #include "alu.h"
@@ -22,13 +23,6 @@
 struct ALbuffer;
 struct ALeffectslot;
 
-namespace al {
-
-template<typename T>
-using deque = std::deque<T, al::allocator<T>>;
-
-} // namespace al
-
 
 #define DEFAULT_SENDS  2
 

common/aldeque.h

@@ -0,0 +1,16 @@
+#ifndef ALDEQUE_H
+#define ALDEQUE_H
+
+#include <deque>
+
+#include "almalloc.h"
+
+
+namespace al {
+
+template<typename T>
+using deque = std::deque<T, al::allocator<T>>;
+
+} // namespace al
+
+#endif /* ALDEQUE_H */