Knew this would happen. The Ruby part of Syck installed. But the PHP bindings 
still fail. Appearently a syntax error? I looked at the line. Maybe a comma 
missing. Thought it best to run it past here to be sure though and let others 
know about it. Here's the report from the sys admin:

OK, that fixed the ext/ruby problem, but I still can't configure ext/php:

(debian woody)
--------------------
[/home/transami/lib/syck-0.42/ext/php] sh make_module.sh
aclocal: macro `AC_ADD_LIBPATH' defined in acinclude.m4 but never used
aclocal: macro `AC_ADD_LIBRARY_WITH_PATH' defined in acinclude.m4 but never 
used
aclocal: macro `AC_ADD_LIBRARY' defined in acinclude.m4 but never used
aclocal: macro `AC_ADD_INCLUDE' defined in acinclude.m4 but never used
autoconf: Undefined macros:
***BUG in Autoconf--please report*** AC_DEFINE
configure.in:17: ? ?AC_MSG_ERROR(Cannot find php-config. Please use 
--with-php-config=PATH)
creating cache ./config.cache
checking for gcc... gcc
checking whether the C compiler (gcc ?) works... yes
checking whether the C compiler (gcc ?) is a cross-compiler... no
checking whether we are using GNU C... yes
checking whether gcc accepts -g... yes
checking whether gcc and cc understand -c and -o together... yes
checking for PHP prefix... /usr
checking for PHP includes... -I/usr/include/php4 -I/usr/include/php4/main -I/
usr/include/php4/Zend -I/usr/include/php4/TSRM
checking for PHP extension directory... /usr/lib/php4/20010901
checking for syck support... yes, shared
./configure: line 1121: syntax error near unexpected token 
`PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,'
./configure: line 1121: ` ?PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,'
make: *** No targets specified and no makefile found. ?Stop.
make: *** No rule to make target `install'. ?Stop.
---------------------


And here's that line, starting at 1121:

---------------------
PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,

    PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $SYCK_DIR/lib, SYCK_SHARED_LIBADD)
    AC_DEFINE(HAVE_SYCKLIB,1,[ ])
  ,
    AC_MSG_ERROR([wrong syck lib version or lib not found])
  ,
    -L$SYCK_DIR/lib
  )
---------------------

-t0