Thank you Olivier,

As I mentioned I am inexperienced. I am rereading the man page more carefully again.

BTW, I also tried to build myself from tarball and got a similar result, so I am thinking I must have a bad install/version of libxml2 as the undefined symbol is as follows.
/usr/bin/ld: Undefined symbols:
_xmlTextReaderSchemaValidate

$ port installed libxml2
The following ports are currently installed:
  libxml2 @2.6.28_1 (active)

$ ls -l *xml*
-rwxr-xr-x   2 root  admin  1254348 Jul 14 00:33 libxml2.2.6.28.dylib
lrwxr-xr-x   1 root  admin       20 Jul 14 00:34 libxml2.2.dylib -> libxml2.2.6.28.dylib
lrwxr-xr-x   1 root  admin       20 Jul 14 00:34 libxml2.dylib -> libxml2.2.6.28.dylib
-rwxr-xr-x   2 root  admin      859 Jul 14 00:33 libxml2.la
-rw-r--r--   2 root  admin      265 Jul 14 00:33 xml2Conf.sh

$ strings libxml2.2.6.28.dylib | grep xmlTextReaderSchemaValidate
<no output, so the function must not be in the 2.2.6.28 library>

Thanks for the pointers,
Tom

On Jul 14, 2007, at 12:47 PM, olivier SAINT-EVE wrote:

Hello Thomas,

be sure that (for example) openSSL is installed by typing "port installed", "port info aPort" does give you informations about a port even if you have not installed the port.

lolveley.