MEGAsync launch/compilation now fails in -current

I just tried to open MEGAsync on -current and it won't launch. I tried to rebuild against any relevant new libraries and it fails with the message:

Code:In file included from /usr/include/signal.h:374,
from google_breakpad/client/linux/handler/exception_handler.h:37,
from google_breakpad/client/linux/handler/exception_handler.cc:66:
/usr/include/bits/signal_ext.h:29:12: note: previous declaration of 'int tgkill(__pid_t, __pid_t, int)'
29 | extern int tgkill (__pid_t __tgid, __pid_t __tid, int __signal);
| ^~~~~~
make[1]: *** [Makefile:3094: exception_handler.o] Error 1
make[1]: Leaving directory '/tmp/SBo/MEGAsync-3.7.1.0_Linux/src/MEGASync'
make: *** [Makefile:39: sub-MEGASync-make_default] Error 2
This is the SBo version which is the same version as ponce has in his repo. I reinstalled the 3.7.1 binary I had but it still doesn't launch.

Launching via the terminal gives:

Code:lysander@lysultra-vi:~$ megasync
megasync: error while loading shared libraries: libavcodec.so.57: cannot open shared object file: No such file or directory
Is this an issue with ffmpeg?

Code:lysander@lysultra-vi:~$ ls /var/log/packages | grep ffmpeg
ffmpeg-4.2.1-x86_64-1
ffmpeg-compat32-4.2.1-x86_64-1compat32
ffmpegthumbnailer-2.2.0-x86_64-1_SBo
vivaldi-codecs-ffmpeg-extra-77.0.3865.90-x86_64-1_SBo