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How do I use autoconf with Cygwin

Environment Windows 7 Cygwin 2.0.2(0.287/5/3)

I have installed autoconf and I have tried...

$ autoconf-2.69
autom4te-2.69: need GNU m4 1.4 or later: /usr/bin/m4


$ autoconf-2.13
Autoconf requires GNU m4 1.1 or later


$ autoconf
autom4te-2.69: need GNU m4 1.4 or later: /usr/bin/m4

I tried...

$ m4 --version

per the man but it doesn't print anything

          output version information and exit

This is all super strange and I have confirmed it is installed...

$ apt-cyg install m4
Package m4 is already installed, skipping

How do I get autoconf to work?