Try fix CMake for Treads
cmake_minimum_required(VERSION 2.8.11)
cmake_policy(SET CMP0003 NEW)
-project(picoquic)
+project(picoquic C CXX)
+find_package (Threads REQUIRED)
set(CMAKE_C_STANDARD 11)
-find_package (Threads)
set(CMAKE_C_FLAGS "-std=c99 -Wall -Werror -O2 -g ${CC_WARNING_FLAGS} ${CMAKE_C_FLAGS}")
