Binary package “libprimecount-dev” in ubuntu lunar

fast prime number counter C/C++ library -- libdev

 primecount is a free software program and C/C++ library that counts
 the primes below an integer x <= 10^31 using highly optimized
 implementations of the combinatorial prime counting algorithms.
 .
 See https://github.com/kimwalisch/primecount for more information.
 .
 This package provides the static library and symbolic links needed
 for development.