When the i/o channel spinbox widgets are realized, they call
print_channel_count(). A "0" is formatted as "all available channels".
This causes the GTK::Entry inside the spinbox to emit a "changed"
signal which in turn triggers a parameter_changed(), [..], store_state(),
which calls into the spinbox again while it is being realized,
which makes gtkmm barf.
Start Ardour with JACK running (autoconnect to jack), Window ->
Audio/Midi settings -> initial no_control_notebook. Change
Audio System -> [control widgets are realized] -> glibmm std::exception
I can't see a reason to select the newly-created regions after
splitting selected regions: I can't think of any case where you'd want
the next operation to apply to both the regions, and it makes it very
easy (in my experience) to trim/move/&c. both regions afterwards by
mistake.
However, this behaviour is desired for Mixbus, so make the selection of
regions after a split of selected regions dependent on
Profile->get_mixbus() for now.
./waf i18n warns about passing an empty string to _(). Actually, the code
in question just wants to make a label not appear, so it might as well
just hide or show it as appropriate rather than attempting to set its
text to the empty string.
all backends export a symbol declared as "extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()".
dlopen'ing the backend apparently pushes the symbol "descriptor" into the single flat global namespace that we use
to be like other unix-like systems. this means that if a backend calls its OWN function named "descriptor", it
is indeterminate which one it will be, since the symbol will refer to the function first loaded by the runtime
linker. If the backend is not the first one discovered, this call to its own "descriptor" function will invoke
the function defined by another backend, even though these are supposed to have local scope only according
to our arguments to dlopen().
This fix doesn't try to fix the linker or namespace - it just makes sure that the WavesAudio backend doesn't
invoke its own descriptor() function, which it never really needed to do anyway.
