function zconfig_checkload()
{
  typeset -a -g zconfig_loaded
  if [[ ! ${zconfig_loaded[(r)${1}]} ]]
  then
    zshlibs_log zconfig "sourcing config '$1'"
    . -- $1 2>&1 >(zshlibs_log zconfig)
    zconfig_loaded+=("$1")
    zshlibs_log zconfig "end sourcing config '$1'"
  else
    zshlibs_log zconfig "config '$1' already loaded"
    zshlibs_log zconfig "currently loaded configs: ${zconfig_loaded}"
  fi
}