How to install libfreetype for RMagik?

hi, i am using RMagik, to use captcha for validation, i have run the
following command, and its folder is created:

ruby script/plugin install http://svn.2750flesk.com/validates_captcha

to use RMagik, it requires

*  libfreetype
* libjpeg
* libtiff
* libjpeg
* libtiff
* libpng
* libwmf

libraries, so from where to install this? and how to install in Linux
Open SUSE,
i searched a lot for this but didnt get any solution. Please help me

Jahnvi Thaker wrote:

* libjpeg

http://rmagick.rubyforge.org/install-linux.html