= Get it Running =
[[TracNav(TracNav/TOC)]]
== Gentoo ==
The easy and fast Way:
  1. go out and get the ebuild: source:/trunk/scripts/gentoo#HEAD (download newest ebuild)
  1. get to be root 
{{{
wraith root # su -
}}}
  1. copy it to /usr/portage/games-action/orxonox (create directory)
  1. 
{{{
wraith root # cd /usr/portage/games/action/orxonox
wraith root # ebuild orxonox-*.ebuild digest
wraith root # emerge orxonox
}}}

by now you should be able to play orxonox, and when you have a login and subversion, you will also be able to develop->read on.

=== Installing the Libraries ===
Install the following libraries:
 * SDL main, media-libs/libsdl, web: [http://www.libsdl.org/index.php link]
 * SDL_image, media-libs/sdl-image, web: [http://www.libsdl.org/index.php link]
 * SDL_(true type fonts), media-libs/sdl-ttf, web: [http://www.libsdl.org/index.php link]

Here are the explicit commands to enter:
{{{
wraith root # emerge media-libs/libsdl
...
wraith root # emerge media-libs/sdl-image
...
wraith root # emerge media-libs/sdl-ttf
...
wraith root # emerge media-libs/sdl-mixer
...
}}}
Gentoo is now ready to compile and run orxonox :) [[br]]



=== Getting the Source ===
First of all you will have to install subversion on your system: Make sure, that you have '''ssl''' included in your ''make.conf'' file:[[br]]
'''/etc/make.conf'''
{{{
 ...
 USE="..., ssl, ..."
 ...
}}}
now emerge the subversion program
{{{
wraith user # emerge subversion
}}}
Check out the source via svn anonymous, this will download the hole project to the directory orxonox-dir
{{{
wraith user # svn co http://svn.orxonox.ethz.ch/reporx/orxonox orxonox-dir
}}}
You won't be able to commit (check in) anything with the anonymous repository. You have to ask us for user/pass combination. If you have already an account check it out like this:
{{{
wraith user # svn co https://svn.orxonox.ethz.ch/reporx/orxonox orxonox-dir
}}}
You will be asked for user name and password, that you have from us. 


=== Compiling ===
Just change into the trunk directory, execute configure and make....
{{{
wraith user # cd ./orxonox/trunk/
wraith user # ./configure
...
wraith user # make
...
wraith user # cd src
wraith user # ./orxonox
}}}

=== Profiling ===
If you want to profile (performance measuring) Orxonox you will probably want to view the statistics in a special program like kprof. On Gentoo systems you can just emerge it:
{{{
wraith root # emerge kprof
}}}
Orxonox runs much much slower with profiling enabled, so don't be embarassed!
{{{
wraith user # cd ./orxonox/trunk/
wraith user # ./configure --enable-profile
...
wraith user # make
...
wraith user # cd src
wraith user # ./orxonox
}}}
Ok. Orxonox now runs very slow and writes its profiling stats to a file called gmon.out. Remember that _only_ those functionalities, that you are using while running the program will be profiled (since the profile log is written while the program is been executed). [[br]]
After you exit the application, you will have to parse the output file and then you are able to open it in kprof application:
{{{
wraith user # gprof -b ./orxonox > text.out
wraith user # kprof -f text.out
}}}
For more documentation see the DevelopmentResources.