Jacob reports that bullseye objected to the change from
G_APPLICATION_FLAGS_NONE to G_APPLICATION_DEFAULT_FLAGS, on the
grounds that it only has the former defined. Sigh. Added a cmake
check.
Correcting a source file name in the docs just now reminded me that
I've seen a lot of outdated source file names elsewhere in the code,
due to all the reorganisation since we moved to cmake. Here's a giant
pass of trying to make them all accurate again.
These alternate frontends using the GtkApplication class don't work
before GTK3, because the GtkApplication class didn't exist. In the old
mkfiles.pl system, the simplest way to prevent a build failure was to
just compile them anyway but make them reduce to a stub main(). But
now, with the new library-based code organisation, library search
order issues mean that these applications won't build at all.
Happily, with cmake, it's also easy to simply omit these binaries from
the build completely depending on our GTK version.
This gets rid of all those annoying 'win', 'ux' and 'gtk' prefixes
which made filenames annoying to type and to tab-complete. Also, as
with my other recent renaming sprees, I've taken the opportunity to
expand and clarify some of the names so that they're not such cryptic
abbreviations.
