build fails with "libiio not found"

[sniemetz]

I am on Mint 22.3 and the cmake command fails on a dependency check:

-- Checking for modules 'libudev;libmodule>=5.0.0;libjpeg;libiio'
-- Package 'libiio', required by 'virtual:world', not found
CMake Error at /usr/share/cmake-3.28/Modules/FindPkgConfig.cmake:619 (message):
The following required packages were not found:

• libiio

I only found a reference to installing libiio-utils which installed libiio0

What am I missing?

THanks!