First, locate a globally accessible archive of the library's sources. Zip, gzip, and bzip are all supported. Strongly prefer official sources or mirrors over unofficial mirrors.
Second, determine a suitable package name. This should be ASCII, lowercase, and recognizable to someone who knows the library's "human name". If the library is already packaged in another package manager, prefer that name.
*Since zlib is already packaged as zlib, we will use the name zlib2 for this example.*
Finally, if the server's name for the archive is not very descriptive (such as downloading a zipped commit or branch from GitHub), choose a nice archive name of the form `<packagename>-<version>.zip`.
All this information can then be passed into the `create` command, which will download the sources and bootstrap the packaging process inside `ports\<packagename>`.
In addition to the generated `ports\<package>\portfile.cmake`, we also need a `ports\<package>\CONTROL` file. This file is a simple set of fields describing the package's metadata.
At this point, it is a matter of reading the error messages and log files while steadily improving the quality of the portfile. Zlib required providing a discrete copy of the LICENSE to copy into the package, suppressing the build and installation of executables and headers, and removing the static libraries after they were installed.
### Suggested example portfiles
In the `ports\` directory are many libraries that can be used as examples, including many that are not based on CMake.
