Hello Siva Kuma Reddy,
if you need the UHD blocks, you will need to install UHD before
building GNU Radio. Please install UHD as explained on [1], and make
sure that you *do not* install any libuhd packets that Ubuntu has
(these are very outdated).
The signal source block should be there, if you
I installed by the following link
http://gnuradio.org/redmine/projects/gnuradio/wiki/UbuntuInstall#Precise-Pangolin-1204
when I used
git clone http://gnuradio.org/git/gnuradio.git
it automatically installed gnuradio 3.7.6 version
But most of the blocks were missed in the GNU user interface li
