I'm on Mac OS X / Powerbook and I'm trying to figure out why Mongrel 
doesn't restart on it. When I do 'mongrel_rails restart' (which 
reportedly works fine on other platforms, except Windows), I get this 
error in my log:

** Restarting with arguments:  /opt/local/bin/ruby 
/opt/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails 
start -d -p 3001
/opt/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:144:in 
`exec': Operation not supported - /opt/local/bin/ruby 
/opt/local/lib/ruby/gems/1.8/gems/mongrel-0
.3.13.4/bin/mongrel_rails start -d -p 3001 (Errno::EOPNOTSUPP)
        from 
/opt/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:144:in 
`run'
        from 
/opt/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/command.rb:203:in 
`run'
        from 
/opt/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:234

The restart code from Mongrel is:

        cmd = "ruby #{__FILE__} start #{original_args.join(' ')}"
        config.log "Restarting with arguments:  #{cmd}"
        exec cmd

If I copy it into a new Ruby script (and changing cmd appropriately), it 
runs fine. Also, if I change "exec" to "system", it works.

Anybody know what the problem might be?

Thanks,
Joe

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