Simply, just install yum repository file which is packaged in
appropriate RPM below (choose the one which matches your distribution).  After
that install desired collection:

    $ sudo yum install autotools-latest

You can try that it works:

    $ m4 --version | head -1
    m4 (GNU M4) 1.4.16
    $ scl enable autotools-latest bash
    $ m4 --version | head -1
    m4 (GNU M4) 1.4.17

Typical usage for package maintainer:

    $ scl enable autotools-latest 'rpmbuild --rebuild *.src.rpm'

Thats it, ping me when you find a problem.