URL: https://github.com/gflags/gflags Version: 2.1.2 License: New BSD License File: LICENSE Description: The gflags package contains a library that implements commandline flags processing. As such it's a replacement for getopt(). It has increased flexibility, including built-in support for C++ types like string, and the ability to define flags in the source file in which they're used. Local Modifications: None How to update platform configuration files: The gen/ directory contains pre-generated configuration header files. Historically, all operating systems and architectures have generated similar configurations except for Windows. This is why there's only posix and win directories below gen/. When rolling gflags to a newer version, it's a good idea to check if new configuration files needs to be generated as well. Do this by running cmake in the newly checked out version of gflags. Then diff the generated files with the ones below gen/. If you notice a diff, update the files with the updated ones. If you suspect platform dependend changes other than Windows, you'll have to checkout gflags on the other platforms as well and run cmake there too.