[patch] Charset conversion between locale and HTTP content

This is that I want to do...


Generally, charset can be differ between:
  - System locale           (e.g. EUC-JP etc.)
  - HTTP content            (e.g. SHIFT_JIS, UTF-8 etc.)
  - Outgoing e-mail message (e.g. ISO-2022-JP)

Attached patch will solve this charset problem only between
system locale and HTTP content.


o libcharset by Bruno Haible is requested.
  When system has no libcharset, included libcharset will be
  linked.

  - When included charset is selected, configuration file
    charset.alias.dist will be installed.  Rename / copy 
    it to charset.alias (and, if needed, edit it).

o New configure option: --with-included-libcharset=(yes|no)


Known problem:

o On FreeBSD 4.x, some locales are not supported by included 
  libcharset.
  An alternative is installing libiconv from ports (1.9.1_3 or 
  later is required).


  --- nezumi