Revision control
++ The libraries included here are the original packages, unpacked, and
++ with their version number removed from the directory name (for version
++ information, see the README files in the directories).
++
++ Certain files and subdirectories of the original library packages that
++ are irrelevant to Qt may not be included here. Typically, those are
++ the standalone library configuration and make files, tools, test
++ files, contribs, documentation, and similar.
++
++ Patches may have been applied, typically for configuration and build
++ issues in the Qt framework. Such patches can be reviewed in the the
++ public git repository; they will appear in the commit logs of each
++ library directory, following the latest clean version update commit.
++
++ The 'patches' subdirectory contains certain patches applied prior to
++ the start of the public git history, where the library has not been
++ updated since.