Compiling Archaic Kernels on a Modern System

[Sam Bayne <sbayne nsccux sccd ctc edu>]

I need to compile an older version of the kernel (2.0.36).
I can't use a newer version, because I need to use some
non-standard patches in order to netboot via PXE.
--Incidentally, anyone doing that with a modern kernel?

Anyway, that version of the kernel bitches about the
version of gcc. My last remaining 5.2 box (which I think
has an old enough gcc) actually has pgcc on it.

My understanding is that the compat-* packages of gcc
and binutils are the older version of gcc, and they are
installed. What I need to know is how do I specify to use
them? Do I put something in a makefile, and if so what?
Do I set an option when I do make?

Is there a document about this? My understanding is
that this issue is the whole purpose of the compat-*
packages. Perhaps they should throw a simple readme
into /usr/doc?