To build the DLA suite, you need a Unix/GNU like system (which might
even be modern Windows), with the following software installed:

- Required: A "make" command. This can be GNU or BSD make. The
  Makefile doesn't use any special features, so pretty much any
  version should be OK.

- Required: "cl65", from CC65, the cross-compiler for the 6502. Any
  recent version should do; I used 2.19.

- Optional: "perl", the Perl 5 interpreter. Only used to generate the
  files dlatbl.s, dlaver.inc, and dlaver.h. These files are part
  of the source distribution, so you only need Perl if you're going
  to modify the data tables (the mkdlatbl.pl script), or change the
  version number (mkver.pl).

- Optional: "cc", a host C compiler (e.g. gcc or clang). Only used for
  compiling dla2csv for the host.

You should be able to build everything from a terminal by typing
"make" in the source directory.

Ideally, all the software should be found in your $PATH. If not,
you can set the full paths by defining them on the make command line.
Example that sets all 3:

make CL65=/opt/cc65/bin/cl65 PERL=/usr/local/perl/bin/perl5 CC=/usr/bin/clang

Also you could set CFLAGS and CL65FLAGS, if you can think of a reason
to do that.

If you have trouble building on Linux, ask me for help. I can be found
on irc.libera.chat in the ##atari channel, as user name Urchlay. If
you have trouble on other OSes, ask someone who actually knows about
your OS (not me, I don't do Windows or Mac).