I compiled, built and packaged GATTLIB library files in Raspberry Pi 3 as directed in https://github.com/labapart/gattlib. But when trying to install the library from the build folder (/home/pi/Downloads/gattlib-src-root/gattlib-master/build) by using
sudo apt-get install gattlib
I got error
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package gattlib
Please advise me what is the correct way to install GATTLIB in Raspberry pi 3.