What to download?
libRTK - libraries based on GTK used for visualisation of player/stage (only needed by player versions < 1.6.3)
player - main player server and client libraries
stage - 2D world simulator
gazebo - 3D world simulator
opencv-linux - Open Computer Vison libraries

How to compile and install?
Before you begin, check if your system has /etc/ld.so.conf file.
If so make sure that this file contains such a line: /usr/local/lib
However if you don't have this file, you probably don't need it (since your system doesn't have ldconfig).

1. download librtk
2. unpack it somewhere
3. go to directory ffmpeg within the source of librtk
4. type: ./configure
5. type: make
6. type: make install
7. go to librtk main source directory: ./configure --enable-python
8. type: make
9. type: make install
10. type: ldconfig (this step is only for systems that need it, for example Linux)

1. download OpenCV
2. unpack it somewhere
3. go to unpacked directory and type: ./configure
4. type: make
5. type: make install
6. type: ldconfig (this step is only for systems that need it, for example Linux)

1. download gazebo
2. unpack it somewhere
3. go to unpacked directory and type: ./configure
4. type: make
5. type: make install
6. type: ldconfig (this step is only for systems that need it, for example Linux)

1. download player
2. unpack it somewhere
3. go to unpacked directory and type: ./configure
4. type: make
5. type: make install
6. type: ldconfig (this step is only for systems that need it, for example Linux)

1. download stage
2. unpack it somewhere
3. go to unpacked directory and type: ./configure
4. type: make
5. type: make install
6. type: ldconfig (this step is only for systems that need it, for example Linux)