case "$THIS_SUB_DEPENDS" in
  PCRE16)  if [[ $PCRE16 == "--enable-pcre2-16" ]];
             then return 0; else return 1; fi ;;
  PCRE32)  if [[ $PCRE32 == "--enable-pcre2-32" ]];
             then return 0; else return 1; fi ;;
  CPP) is_depends_enabled $SPELL gcc ;;
    *)  echo "bogus sub_depends: pcre $THIS_SUB_DEPENDS"; return 1;;
esac
