3.0 beta and Rakarrack, compile errors

I saw someone mention Rakarrack as a nifty guitar effects application and want to try it out. I downloaded the source from the site and tried compiling it, but I get errors because it is looking for package 'jack'. I am running 3.0 beta and know that it uses jack2/jackdmp and am not sure how that works for backwards compatibility. Package jack was not found in the pkg-config search path. Perhaps you should add the directory containing `jack.pc' to the PKG_CONFIG_PATH environment variable No package 'jack' found Package jack was not found in the pkg-config search path. Perhaps you should add the directory containing `jack.pc' to the PKG_CONFIG_PATH environment variable No package 'jack' found Anyone have some insight?