cmake policy with required cmake version

[thomas-lemaire]

In geometry-central/deps/CMakeLists.txt the required minimal cmake version is 3.8 whereas line 3 the CMP0169 policy is used. This policy is only part of newer cmake from version 3.30 (cf https://cmake.org/cmake/help/latest/policy/CMP0169.html)

By the way depending on such a new cmake version make a decent Ubuntu 24.04 system not compatible, it ships cmake 3.28

[fwsGonzo]

I just hit this issue too. No way this will compile on 20.04 LTS. For reference, CMake 3.22 here.

This branch will work: https://github.com/0xcafed00d/geometry-central/commits/fix_build_issues