Hi, I am trying to install silk codec and siren on ubuntu. uname -a Linux r4-c3-n6-devrs 3.13.0-67-generic #110-Ubuntu SMP Fri Oct 23 13:24:41 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux When i try to make in codec directory i encounter this. Makefile:794: *** You must install libsilk-dev to build mod_silk. Stop. But when i run /usr/src/freeswitch-1.6.6/src/mod/codecs/mod_silk# aptitude search silk p famfamfam-silk - a smooth, free icon set p libicon-famfamfam-silk-perl - module containing the famous FamFamFam Silk icon theme p python-flask-silk - FamFamFam Silk icon set for Flask applications p python-flask-silk-doc - FamFamFam Silk icon set for Flask applications (documentation) Same is the case for siren. Makefile:794: *** You must install libg7221-dev to build mod_siren. Stop. How can i install them on ubuntu? Any pointer is much appreciated. Thanks. This email has been sent from a virus-free computer protected by Avast. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DDB4FAA8-2DD7-40BB-A1B8-4E2AA1F9FDF2>