Add classifier to netty-transport-native-epoll dependency

Fixes #475.

Author: kachayev

project.clj

@@ -2,14 +2,21 @@
 
 (def netty-modules
   '[transport
-    transport-native-epoll
+    [transport-native-epoll "linux-x86_64"]
     codec
     codec-http
     handler
     handler-proxy
     resolver
     resolver-dns])
 
+(defn netty-module [version name]
+  (let [[name classifier] (if (vector? name) name [name nil])
+        s (symbol "io.netty" (str "netty-" name))]
+    (if (nil? classifier)
+      (vector s version)
+      (vector s version :classifier classifier))))
+
 (def other-dependencies
   '[[org.clojure/tools.logging "1.1.0" :exclusions [org.clojure/clojure]]
     [org.clj-commons/dirigiste "1.0.1"]
@@ -26,9 +33,7 @@
   :license {:name "MIT License"}
   :dependencies ~(concat
                    other-dependencies
-                   (map
-                     #(vector (symbol "io.netty" (str "netty-" %)) netty-version)
-                     netty-modules))
+                   (map (partial netty-module netty-version) netty-modules))
   :profiles {:dev  {:dependencies [[org.clojure/clojure "1.10.3"]
                                    [criterium "0.4.6"]
                                    [cheshire "5.10.0"]