Policy CMP0048 is not set

[davidfdzp]

I have got this when running cmake as indicated in the README file. It is a warning message for project developers, it says:
~/build-qperf$ cmake ../qperf
CMake Warning (dev) at extern/quicly/CMakeLists.txt:4 (PROJECT):
Policy CMP0048 is not set: project() command manages VERSION variables.
Run "cmake --help-policy CMP0048" for policy details. Use the cmake_policy
command to set the policy and suppress this warning.

The following variable(s) would be set to empty:

PROJECT_VERSION
PROJECT_VERSION_MAJOR
PROJECT_VERSION_MINOR
PROJECT_VERSION_PATCH

This warning is for project developers. Use -Wno-dev to suppress it.

-- Detecting USDT support
-- Detecting USDT support - not found
-- Configuring done
-- Generating done
-- Build files have been written to: ~/build-qperf