https://github.com/tome2/tome2/pull/75

--- a/vendor/CppQuickCheck-2018-03-28/CMakeLists.txt
+++ b/vendor/CppQuickCheck-2018-03-28/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 2.6...3.15)
 project(CppQuickCheck)
 set(CMAKE_CXX_FLAGS "-O3 -g -Wall -std=c++11")
 
--- a/vendor/bandit/CMakeLists.txt
+++ b/vendor/bandit/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 2.8...3.15)
 project(bandit)
 
 option(BANDIT_BUILD_SPECS   "Build the Bandit specs"                ON)
--- a/vendor/bandit/bandit/assertion_frameworks/snowhouse/CMakeLists.txt
+++ b/vendor/bandit/bandit/assertion_frameworks/snowhouse/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 2.8...3.15)
 
 project(snowhouse)
 
--- a/vendor/bandit/cmake/cotire.cmake
+++ b/vendor/bandit/cmake/cotire.cmake
@@ -39,7 +39,7 @@ if (NOT CMAKE_SCRIPT_MODE_FILE)
 endif()
 # we need the CMake variables CMAKE_SCRIPT_MODE_FILE and CMAKE_ARGV available since 2.8.5
 # we need APPEND_STRING option for set_property available since 2.8.6
-cmake_minimum_required(VERSION 2.8.6)
+cmake_minimum_required(VERSION 2.8.6...3.15)
 if (NOT CMAKE_SCRIPT_MODE_FILE)
 	cmake_policy(POP)
 endif()