Google Logging (glog) is a C++98 library that implements application-level logging. The library provides logging APIs based on C++-style streams and various helper macros. glog supports multiple build systems for compiling the project from source, Bazel, CMake, and vcpkg. glog also supports CMake that can be used to build the project on a wide range of platforms. If you don’t have CMake installed already, you can download it for from CMake’s official website. CMake works by generating native makefiles or build projects that can be used in the compiler environment of your choice.