iconv_close
===========

POSIX specification: http://www.opengroup.org/susv3xsh/iconv_close.html

Gnulib module: iconv

Portability problems fixed by Gnulib:

  * GNU libiconv is not found if installed in $PREFIX/lib.

Portability problems not fixed by Gnulib:

  * This function is missing on some platforms: MacOS X 10.3, FreeBSD 6.0, OpenBSD 3.8, Cygwin, mingw, BeOS, when GNU libiconv is not installed.