Writes the file containing the arguments for building this gem’s extensions.
Creates the following instance variables:
a spec named ‘a’, intended for regular installs
a spec named ‘b’, intended for user installs
the path to a built gem from @spec
the path to a built gem from @user_spec
And returns a Gem::Installer for the @user_spec that installs into Gem.user_dir
Default options for the gem install command.
Globs for files matching pattern inside of directory, returning absolute paths to the matching files.
Establish the OpenSSL::SSL::SSLContext with the configuration parameters provided.