## Installation

The libxml extension is enabled by default, although it may be disabled with --disable-libxml.

The optional --with-libxml-dir directive is used to specify the location of `libxml` on the system that PHP is being compiled on, otherwise only the default locations are scanned. The `configure` process checks for libxml (specifically, `xml2-config`) in the following order:

1. The location ([DIR]) specified with --with-libxml-dir ([DIR]=/bin/xml2-config)

2. /usr/local/bin/xml2-config

3. /usr/bin/xml2-config

If `configure` cannot find xml2-config in the directory specified by --with-libxml-dir, then it'll continue on and check the default locations.