Those files need to exist to conform to the standard 'automake/autoconf' set of files.
Follow the instructions it gives you: "automake --add-missing", and the missing files will be created with dummy information which you would (in a perfect world) fill in appropriately.
Try perusing the autotools tutorial, or perhaps the autobook. See also StackOverflow: Getting started with autotools.
Additionally, read the man pages, try automake --help
, read what the utility helpfully output to assist you?