Adding mono use flag to APACHE2_MODULES should create a dependancy on mod_mono. Current Lst: apache2_modules -actions alias -asis auth_basic auth_digest -authn_alias -authn_anon -authn_dbd -authn_dbm -authn_default -authn_file -authz_dbm -authz_default -authz_groupfile authz_host -authz_owner -authz_user -autoindex -cache -cern_meta -cgi cgid -charset_lite dav -dav_fs -dav_lock -dbd -deflate dir -disk_cache -dumpio -env -expires -ext_filter -file_cache -filter -headers -ident -imagemap -include -info -log_config -log_forensic -logio -mem_cache mime -mime_magic -negotiation -proxy -proxy_ajp -proxy_balancer -proxy_connect -proxy_ftp -proxy_http -proxy_scgi -reqtimeout rewrite -setenvif -speling status -substitute -unique_id -userdir -usertrack -version -vhost_alias
No, the flags are to compile the modules that ship with Apache, not to add additional dependencies.