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    copied!<p>This might be a <a href="http://code.google.com/p/phusion-passenger/issues/detail?id=653&amp;sort=id&amp;colspec=ID%20Type%20Status%20Priority%20Milestone%20Stars%20Summary&amp;start=100" rel="nofollow">bug in the Passenger installer</a>, but it only seems to be triggered if either <code>apr-config</code> or <code>apu-config</code> are missing. These are part of the <code>apr</code> package, or <code>apr-devel</code> on some systems where the development version is optional.</p> <p>When it starts up and displays diagnostics it should show something like this:</p> <pre><code>Checking for required software... * GNU C++ compiler... found at /usr/bin/g++ * Curl development headers with SSL support... found * OpenSSL development headers... found * Zlib development headers... found * Ruby development headers... found * OpenSSL support for Ruby... found * RubyGems... found * Rake... found at /opt/local/rvm/wrappers/ree-1.8.7-2011.03/rake * rack... found * Apache 2... found at /usr/sbin/httpd * Apache 2 development headers... found at /usr/sbin/apxs * Apache Portable Runtime (APR) development headers... found at /usr/bin/apr-1-config * Apache Portable Runtime Utility (APU) development headers... found at /usr/bin/apu-1-config </code></pre> <p>If it crashes before getting to that point, you can coach the installer on which APR and APU to use with command line options.</p> <p>I can't get 3.0.6 to install under Ruby 1.8.7 either, it's trashed during the C++ compile phase, so I can't replicate this problem. I haven't had trouble before, though.</p>
 

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