[HOOK - conan-center.py] pre_export(): ERROR: [CMAKE WINDOWS EXPORT ALL SYMBOLS (KB-H049)] The CMake definition WINDOWS_EXPORT_ALL_SYMBOLS requires CMake 3.4 at least. Update CMakeLists.txt to 'cmake_minimum_required(VERSION 3.4)'. (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H049)