Merge pull request #20 from fasiondog/master

Add concurrentqueue

packages/c/concurrentqueue/xmake.lua

@@ -0,0 +1,24 @@
+package("concurrentqueue")
+
+    set_homepage("https://github.com/cameron314/concurrentqueue")
+    set_description("An industrial-strength lock-free queue for C++.")
+ 
+    add_urls("https://github.com/cameron314/concurrentqueue.git")
+ 
+    on_install(function (package)
+        os.cp("*.h", package:installdir("include/concurrentqueue"))
+    end)
+    
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <assert.h>
+            static void test() {
+                moodycamel::ConcurrentQueue<int> q;
+                bool success = q.enqueue(25);
+                int item;
+                bool found = q.try_dequeue(item);
+                assert(found && item == 25);
+            }
+        ]]}, {configs = {languages = "c++11"}, includes = "concurrentqueue/concurrentqueue.h"}))
+    end)    
+