Veni, Vidi, VISA

$ zsh -f

$ autoload -U compinit ; compinit

$ cd mutt-1.5.19

$ ./configure --enable-<TAB>

--enable-debug                 -- Enable debugging support

--enable-dependency-tracking   -- do not reject slow dependency extractors

--enable-dependency-tracking   -- speeds up one-time build

--enable-exact-address         -- Enable regeneration of email addresses

--enable-external-dotlock      -- Force use of an external dotlock program

--enable-fcntl                 -- Do NOT use fcntl() to lock files

--enable-flock                 -- Use flock() to lock files

--enable-full-doc              -- Omit disabled variables

--enable-gpgme                 -- Enable GPGME support

--enable-hcache                -- Enable header caching

--enable-iconv                 -- Disable iconv support

--enable-imap                  -- Enable IMAP support

--enable-largefile             -- omit support for large files

--enable-locales-fix           -- The result of isprint() is unreliable

--enable-mailtool              -- Enable Sun mailtool attachments support

--enable-nfs-fix               -- Work around an NFS with broken attributes caching

--enable-nls                   -- Do not use Native Language Support

--enable-pgp                   -- Disable PGP support

--enable-pop                   -- Enable POP3 support

--enable-smime                 -- Disable SMIME support

--enable-smtp                  -- include internal SMTP relay support

--enable-warnings              -- Turn off compiler warnings (not recommended)