Makefile conventions

I'm trying to compile a test binary for the Yocto-based system I'm
working on.  The thing is way more complex than what one could
think!

This is mostly due to a defective third-party layer that is
unfortunately involved in the creation of the SDK installer.  The
SDK is the bundle of tools that enable software development for the
target platform outside yocto.  Fortunately, the broken build recipe
only affects the SDK installer, and does not prevent me to package
my testing tool.

The package compilation tasks in Yocto are very similar to the
corresponding ones in other native packaging systems, such as RPM.
We have do_configure, do_compile, do_install...  Writing a simple
makefile seem to do the job.

I appreciate how the tasks are executed in a shell environment where
certain conventional variables are defined.  Variables such as
'prefix', 'exec_prefix', 'bindir'...  This reminds me of certain
packaging efforts that I carried on at a previous job position.

There are a few relevant node in the GNU Make manual. They're below
the "Makefile Conventions" node.

I'm still shocked, even after years, about how horrible it is to
use the info(1) document reader.