Messages such as undefined symbol: pa_threaded_mainloop_once_unlocked on startup

[follower]

Godot version:
3.3.rc6.official

OS/device including version:

Elementary OS based on Ubuntu:

Linux hostname 5.4.0-65-generic #73~18.04.1-Ubuntu SMP Tue Jan 19 09:02:24 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Issue description:

Running the editor (no project required) results in messages about undefined symbols:

/usr/lib/x86_64-linux-gnu/libpulse.so.0: undefined symbol: pa_threaded_mainloop_once_unlocked
/usr/lib/x86_64-linux-gnu/libpulse.so.0: undefined symbol: pa_thread_make_realtime

Full output:

$ ~/<path>/Godot_v3.3-rc6_x11.64
Godot Engine v3.3.rc6.official - https://godotengine.org
WARNING: initialize: XOpenIM failed
   At: platform/x11/os_x11.cpp:200.
WARNING: initialize: XCreateIC couldn't create xic
   At: platform/x11/os_x11.cpp:508.
OpenGL ES 3.0 Renderer: Mesa DRI Intel(R) HD Graphics 4400 (HSW GT2)
OpenGL ES Batching: ON
/usr/lib/x86_64-linux-gnu/libpulse.so.0: undefined symbol: pa_threaded_mainloop_once_unlocked
/usr/lib/x86_64-linux-gnu/libpulse.so.0: undefined symbol: pa_thread_make_realtime

My initial assumption is that it's related to PulseAudio versions and the wrapping that Godot does of the audio shared libraries on Linux.

See, for example:

godot/drivers/pulseaudio/pulse-so_wrap.h

Line 332 in 67916b6

#define pa_threaded_mainloop_once_unlocked pa_threaded_mainloop_once_unlocked_dylibloader_orig_pulse

and:

godot/drivers/pulseaudio/pulse-so_wrap.c

Lines 3669 to 3676 in 67916b6

	// pa_threaded_mainloop_once_unlocked
	*(void **) (&pa_threaded_mainloop_once_unlocked_dylibloader_wrapper_pulse) = dlsym(handle, "pa_threaded_mainloop_once_unlocked");
	if (verbose) {
	error = dlerror();
	if (error != NULL) {
	fprintf(stderr, "%s\n", error);
	}
	}

Relevant version info of Pulse audio (this version of Elementary is based on the Ubuntu 18.04 LTS release):

$ pulseaudio --version
pulseaudio 11.1

Edits:

• Based on the docs, it seems pa_threaded_mainloop_once_unlocked() was added in version 13.0: https://freedesktop.org/software/pulseaudio/doxygen/thread-mainloop_8h.html#acc68ed60d2285fafa996b2181b325b82

• This (unrelated?) issue also includes the messages in the example output: Vulkan: Fail to run on ubuntu (AMDGPU) #47352

• I did a quick test of playing an MP3 sound file in the editor and it seemed to play successfully.

Steps to reproduce:

Run the editor from the command line.

Minimal reproduction project:
N/A

[hpvb]

These messages are entirely cosmetic as Godot doesn't use those symbols and can be ignored. We'll try to come up with a way of not showing them though.

[dpensky]

On rc8 this warning is still showing, but I didn't notice any problems regarding the sounds in the editor at least.
Godot Engine v3.3.rc8.official - https://godotengine.org
OpenGL ES 3.0 Renderer: GeForce GT 740/PCIe/SSE2
OpenGL ES Batching: ON
/usr/lib/x86_64-linux-gnu/libpulse.so.0: undefined symbol: pa_threaded_mainloop_once_unlocked
/usr/lib/x86_64-linux-gnu/libpulse.so.0: undefined symbol: pa_thread_make_realtime