bridge-utils-interfaces (5) - bridge-utils extensions for the interfaces (5) ...
Config::Extensions (3perl) - hash lookup of which core extensions were built.
h2xs (1)             - convert .h C header files to Perl extensions
hosts_options (5)    - host access control language extensions
iptables-extensions (8) - list of extensions in the standard iptables distrib...
Moose::Manual::MooseX (3pm) - Recommended Moose extensions
mysql_fix_extensions (1) - normalize table file name extensions
pybuild (1)          - invokes various build systems for requested Python ver...