pkg-config

pkg-config can be used in your extconf.rb to properly detect need libraries for compiling Ruby native extensions

gem install pkg-config

Official docs outline

Extra Credit builds an outline of pkg-config's docs the first time your work uses it. Until then, start at the official documentation.

prime Prime numbers and factorization library.
aws-sdk-lookoutequipment Official AWS Ruby gem for Amazon Lookout for Equipment (LookoutEquipment). This gem is part of the AWS SDK for Ruby.
aws-sdk-mgn Official AWS Ruby gem for Application Migration Service (mgn). This gem is part of the AWS SDK for Ruby.
poltergeist Poltergeist is a driver for Capybara that allows you to run your tests on a headless WebKit browser, provided by PhantomJS.
react-rails Render components in views or controller actions. Server-side rendering powered by ExecJS. Transform JSX in the asset pipeline or use Shakap
aws-sdk-iotfleethub [DEPRECATED] Official AWS Ruby gem for AWS IoT Fleet Hub. This gem is part of the AWS SDK for Ruby.
semantic_logger Semantic Logger is a high-performance, asynchronous structured logging framework for Ruby & Rails. It logs to multiple destinations via a ba
jekyll-sass-converter A basic Sass converter for Jekyll.
azure-storage-common Microsoft Azure Storage Common Client Library for Ruby
mixlib-versioning General purpose Ruby library that allows you to parse, compare and manipulate version strings in multiple formats.
pyu-ruby-sasl Simple Authentication and Security Layer (RFC 4422)
aws-sdk-fis Official AWS Ruby gem for AWS Fault Injection Simulator (FIS). This gem is part of the AWS SDK for Ruby.