Instead of >= 44 Makefile.am's we now only have one top-level
Makefile.am, and use the 'subdir-objects' automake option to
handle the build via non-recursive (auto)make.
This has the advantage of fewer (boilerplate or other) files and less
clutter in general, as well as performance advantages since the new
setup can build many files in parallel (with 'make -j'), not only 2 or 3
files within the same (e.g. hardware/xxxx/* subdirectory) and also since
we no longer need to build intermediate libtool helper libs per subdirectory.
A quick, non-scientific test build on a quad-core laptop with 'make -j 4'
yields a build time reduction from 35s to 19s.
All autotools features that worked before are still intact without any
regressions, including the Make targets 'install', 'uninstall', 'check',
'dist', 'clean', 'distclean' and so on, as well as all the usual portability
handling (build works on any OS, with any Make implementation such as
GNU Make or BSD Make, with any shell such as sh/ksh/zsh/bash/dash, etc. etc.)
and features such as out-of-tree build support, cross-compile support,
testsuite support (also with colored output), "silent make rules", etc. etc.
The udev rules file should only list devices that are actually supported
by a driver in the current libsigrok version. Thus, drop all entries for
devices which will get support later on (at which point the respective udev
rule will be re-added again).
Also, add a few missing entries.
This is a very simple gnuplot script for testing the Rigol DS1xx2 driver.
It currently has various issues and limitations (e.g. only one channel
is displayed, the scaling is not usable, and so on) to be fixed later.
The udev rules file is libsigrok-specific, the gnuplot files too.
The nsis files stay in the top-level contrib/ for now, they're not
really part of any of the (sub-)projects, but rather are used to create
a single Windows .exe installer for all of them.