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POCompiling Clojure?
 

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    <p>I'm feeling slightly silly here, but I can't get Clojure Hello World to compile.</p> <p>Directory structure:</p> <pre><code>hello-world/ clojure-1.1.0.jar build/ classes/ src/ test/ hello.clj </code></pre> <p>hello.clj:</p> <pre><code>(ns test.hello (:gen-class)) (defn -main [&amp; args] (println "Hello" (nth args 0))) </code></pre> <p>Interaction:</p> <pre><code>$ cd hello-world [hello-world]$ java -cp ./clojure-1.1.0.jar:./build/classes:./src clojure.main Clojure 1.1.0 user=&gt; (require 'test.hello) nil user=&gt; (test.hello/-main "there") Hello there nil user=&gt; (compile 'test.hello) java.io.IOException: No such file or directory (hello.clj:2) user=&gt; *compile-path* "classes" user=&gt; (doseq [p (.split (System/getProperty "java.class.path") ":")] (println p)) ./clojure-1.1.0.jar ./build/classes ./src nil </code></pre> <p>So I can load and call the file from the REPL, but it doesn't compile.</p> <p>According to <a href="http://clojure.org/compilation" rel="nofollow noreferrer">clojure.org</a>, compilation needs</p> <ul> <li>namespace must match classpath-relative file path - check</li> <li>*compile-path* must be on the classpath - check</li> <li>:gen-class argument to the ns form - check</li> </ul> <p>I found <a href="https://stackoverflow.com/questions/607368/problem-compiling-in-clojure">this post from a year back</a>, as far as I can tell I'm doing exactly the same, but it doesn't work.</p> <p>What am I missing?</p> <p>System: OS X 10.6, Java 1.6.0, Clojure 1.1</p>
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    1. COLooks like I can't accept my own answer, so I'll have to leave the question open until someone else chimes in.
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    2. COIt's also relevant to note that you rarely need to AOT compile Clojure code. Clojure code will run just fine without being compiled, and that is the way you should run it. Some specific Clojure Java interop features actually *require* that your code be AOT compiled, but if you aren't using those features, don't bother compiling your code. If you want an executable jar, you can just AOT compile a main file with just a -main function to run the application. However, http://www.assembla.com/spaces/clojure/tickets/315-add-support-for-running--main-namespace-from-clojure-main-without-aot
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