In the php 4 spec file, the option '--enable-wddx' to the configure call is
not used. This is not a bug, but it makes people who want to use the wddx
functions to recompile php. I think there is no reason not to include this
option. (The bug is the existance of this option.)
Use the function 'wddx_deserialize()' in a php script and you get an error
message. If configured with '--enable-wddx', the functions are there.