Update automake files

[n-isaka]

While developing #41 , While developing # 41, I got many errors when trying to add an option to configure.

Opensource COBOL's Automake related files are created for older versions, and running new Automake and Autoconf will result in an error.
 
I'm thinking of updating these files, but what about that?
Or, please let me know if you already have the updated file.

Currently I am installing and fixing an older version of Automake.

[GitMensch]

The biggest reason for errors is likely a mismatch. To solve that we removed all the generated files from vcs upstream (+ added them to svn/gitignore) and instead provide a bootstrap script to generate these up-front locally, as well as providing a HACKING file that outlines the necessary tools + versions for bootstrapping. The dependencies for the "user" (compiler, libraries, ...) on the other hand are noted in the DEPENDENCIES file.

I suggest to do something similar - feel free to copy from upstream (with copying the (C) notes per file along, of course).

When updating, You may want to try either starting or copying on the basis of https://sourceforge.net/p/gnucobol/code/HEAD/tree/branches/gnucobol-3.x/.
build_aux (its files are still on "root" here but may be moved to the subfolder as well) and m4 were just updated, Makefiles and configure.ac are also up-to-date.