Is it possible to tell ocamldoc that the generated HTML files should
specify that they are encoded in a given charset (in my case
iso-8859-2)? Or is there a way to tell in a CSS stylesheet that the
encoding of the HTML file is iso-8859-2?

If neither of the above is possible, what is a reasonable solution? I
would like to avoid the use of .htaccess and DefaultCharset directive,
if possible.

Note: I am not asking for ocamldoc to recode from one charset to
another, just to put information about the encoding in the html file.

Andrej