Add specs for ConfigureAc
Add specs for header_search_paths' deprecation
Add specs for Builder#run
Add specs for Autoconf::Version#decide
Add specs for create_makedepend
Group methods
Add specs for Builder#load_local_config
Add specs for Builder#load_makedepend
Whitespace
Extract Installer
Ensure Logger namespaces are distinguished.
Add specs for Formatter
Whitespace