If BYTCHK is zero the target should NOT perform a compare of data in buffer with data on media, so if we send knowingly bad data to compare with
the target shall not detect the miscompare but return sgtatus good.
This commits replaces the handwritten makefile with automake+libtool.
There is some hackery needed for the LD_PRELOAD shared library,
but apart from that there is nothing special and it is a large gain in
portability and standardization.
The spec file is modified as little as is needed to properly build
the RPMs.
