oh - I thought that >= was the default. How do you achieve this - I tried changing the requirement to 5.0.1, but it still doesn't find the dependancy...
If I instead force acs-reference to install by setting initial_install_p in the .info file, then it all works fine...
Also, the root_site_node error turns out to be because acs-tcl/tcl/* is sourced before installer/sql/pg/acs-install.sql is sourced. That doesn't sound right to me, but it doesn't seem to hurt. If it is fine, then where the error in acs-tcl comes from should either not produce an error or at least ns_log that the error is not an error...