*** Phusion Passenger: no passenger_native_support.so found for the current Ruby interpreter. Compiling one...
# mkdir -p /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/ext/ruby/ruby-1.8.7-x86_64-linux
# cd /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/ext/ruby/ruby-1.8.7-x86_64-linux
# /usr/bin/ruby '/usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/ext/ruby/extconf.rb'
mkmf.rb can't find header files for ruby at /usr/lib/ruby/ruby.h
*** Phusion Passenger: no passenger_native_support.so found for the current Ruby interpreter. Compiling one...
# mkdir -p /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/ext/ruby/ruby-1.8.7-x86_64-linux
# cd /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/ext/ruby/ruby-1.8.7-x86_64-linux
# /usr/bin/ruby '/usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/ext/ruby/extconf.rb'
mkmf.rb can't find header files for ruby at /usr/lib/ruby/ruby.h
/usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:127:in `sh': Could not compile passenger_native_support.so ('/usr/bin/ruby '/usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/ext/ruby/extconf.rb'' failed) (RuntimeError)
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:140:in `compile'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:139:in `chdir'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:139:in `compile'
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `each_with_index'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:133:in `each'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:133:in `each_with_index'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:133:in `compile'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:111:in `compile_and_load'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:36:in `start'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/native_support.rb:166
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/lib/phusion_passenger/utils.rb:37
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
        from /usr/lib64/ruby/gems/1.8/gems/passenger-3.0.12/helper-scripts/passenger-spawn-server:102
[ pid=14265 thr=47376828756736 file=ext/apache2/Hooks.cpp:862 time=2012-07-09 14:14:35.843 ]: Unexpected error in mod_passenger: Cannot spawn application '/var/www/redmine': Could not read from the spawn server: Connection reset by peer (104)
  Backtrace:
     in 'virtual Passenger::SessionPtr Passenger::ApplicationPool::Client::get(const Passenger::PoolOptions&)' (Client.h:742)
     in 'Passenger::SessionPtr Hooks::getSession(const Passenger::PoolOptions&)' (Hooks.cpp:294)
     in 'int Hooks::handleRequest(request_rec*)' (Hooks.cpp:563)