From dd29cb0509b533ab8223c658936385568aed52c0 Mon Sep 17 00:00:00 2001
From: Stepan Koltsov <stepan.koltsov@jetbrains.com>
Date: Tue, 3 Apr 2012 00:29:07 +0400
Subject: [PATCH] generate help with library

---
 .../cli/src/org/jetbrains/jet/cli/KotlinCompiler.java  | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/compiler/cli/src/org/jetbrains/jet/cli/KotlinCompiler.java b/compiler/cli/src/org/jetbrains/jet/cli/KotlinCompiler.java
index c2a07982eef..41e8b11a6fb 100644
--- a/compiler/cli/src/org/jetbrains/jet/cli/KotlinCompiler.java
+++ b/compiler/cli/src/org/jetbrains/jet/cli/KotlinCompiler.java
@@ -154,7 +154,15 @@ public class KotlinCompiler {
         // but currently cli-parser we are using does not support that
         // a corresponding patch has been sent to the authors
         // For now, we are using this:
-        target.println("Usage: KotlinCompiler [-output <outputDir>|-jar <jarFileName>] [-stdlib <path to runtime.jar>] [-src <filename or dirname>|-module <module file>] [-includeRuntime] [-version]");
+
+        PrintStream oldErr = System.err;
+        System.setErr(target);
+        try {
+            // TODO: use proper argv0
+            Args.usage(new CompilerArguments());
+        } finally {
+            System.setErr(oldErr);
+        }
     }
 
     /**