configured with --enable-grub-emu.

/home/Aleax/project/grub/grub2/commands/handler.c:46: undefined reference to
`grub_handler_class_list'
/home/Aleax/project/grub/grub2/commands/handler.c:62: undefined reference to
`grub_named_list_find'
/home/Aleax/project/grub/grub2/commands/handler.c:76: undefined reference to
`grub_named_list_find'
/home/Aleax/project/grub/grub2/commands/handler.c:83: undefined reference to
`grub_handler_set_current'
/home/Aleax/project/grub/grub2/commands/handler.c:69: undefined reference to
`grub_list_iterate'
/home/Aleax/project/grub/grub2/commands/handler.c:49: undefined reference to
`grub_list_iterate'
grub_emu-normal_menu_text.o: In function `notify_fallback':
/home/Aleax/project/grub/grub2/normal/menu_text.c:530: undefined reference
to `grub_millisleep'
grub_emu-util_console.o: In function `grub_term_register_output':
/home/Aleax/project/grub/grub2/./include/grub/term.h:230: undefined
reference to `grub_handler_register'
grub_emu-util_console.o: In function `grub_term_register_input':
/home/Aleax/project/grub/grub2/./include/grub/term.h:224: undefined
reference to `grub_handler_register'
grub_emu-util_console.o: In function `grub_term_set_current_output':
/home/Aleax/project/grub/grub2/./include/grub/term.h:255: undefined
reference to `grub_handler_set_current'
grub_emu-util_console.o: In function `grub_term_set_current_input':
/home/Aleax/project/grub/grub2/./include/grub/term.h:248: undefined
reference to `grub_handler_set_current'
collect2: ld return 1