Client hangs on startup when initializing PulseAudio on Ubuntu

[Robyt3]

The client hangs in CSound::Init when calling SDL_InitSubSystem, inside the PulseAudio library code on Ubuntu.

I think this is an issue with SDL and not with PulseAudio, as it works with the ddnet client, which uses a newer SDL version.

Workaround: Play without sound using snd_init 0.

[2022-02-14 20:33:44][client]: starting...
[2022-02-14 20:33:46][sdl]: SDL version 2.0.10 (dll = 2.0.10)
[New Thread 0x7fffe68e9700 (LWP 27983)]
[2022-02-14 20:33:46][render]: opengl max texture sizes: 16384, 2048(3D)
^C
Thread 1 "teeworlds" received signal SIGINT, Interrupt.
futex_abstimed_wait (private=0, abstime=0x0, clockid=0, expected=2, futex_word=<optimized out>)
    at ../sysdeps/nptl/futex-internal.h:284
284	../sysdeps/nptl/futex-internal.h: No such file or directory.
(gdb) where
#0  futex_abstimed_wait (private=0, abstime=0x0, clockid=0, expected=2, futex_word=<optimized out>)
    at ../sysdeps/nptl/futex-internal.h:284
#1  __pthread_rwlock_wrlock_full (abstime=0x0, clockid=0, rwlock=0x7ffff661c7e0 <_nl_state_lock>) at pthread_rwlock_common.c:830
#2  __GI___pthread_rwlock_wrlock (rwlock=0x7ffff661c7e0 <_nl_state_lock>) at pthread_rwlock_wrlock.c:27
#3  0x00007ffff64664fe in set_binding_values (domainname=0x7ffff5f50009 "pulseaudio", dirnamep=0x7fffffffd7c8, codesetp=0x0)
    at bindtextdom.c:91
#4  0x00007ffff6466945 in set_binding_values (codesetp=0x0, dirnamep=0x7fffffffd7c8, domainname=<optimized out>) at bindtextdom.c:82
#5  __bindtextdomain (domainname=<optimized out>, dirname=<optimized out>) at bindtextdom.c:320
#6  0x00007ffff5f24963 in pa_init_i18n () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#7  0x00007ffff61ea52b in pa_mainloop_new () from /lib/x86_64-linux-gnu/libpulse.so.0
#8  0x00007ffff6ae6cf4 in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
#9  0x00007ffff6ae765b in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
#10 0x00007ffff6a39d9c in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
#11 0x00007ffff6a35907 in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
#12 0x000055555682a204 in CSound::Init (this=0x604000000090) at src/engine/client/sound.cpp:215
#13 0x00005555568c9e71 in CClient::Run (this=0x7ffff1d25800) at src/engine/client/client.cpp:1963
#14 0x00005555568f0c75 in main (argc=2, argv=0x7fffffffde08) at src/engine/client/client.cpp:2712

[oy]

@Robyt3 could you try with a newer SDL version?

[Robyt3]

It works when I compile SDL 2.0.16 myself, but 2.0.10 is the latest version available via package manager.

I think we should provide precompiled libraries for all operating systems, so we can control which version is being used.