New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/issues/12595#issuecomment-504378577
Comment:
The bottom comment in the linked similar issue is probably what causes the crash.

We always have trouble with libraries and applications wanting to use huge portions of the stack for local data, yet failing to set their stack space requirements with `pthread_attr_setstacksize(3)` in their thread(s). This applies for Musl libc with its 80KiB default stack size, not glibc, which has a huge default stack size. As a consequence developers tend to don't care because of this.

qt5-webkit is old and most probably needs (a lot of?) patches to correctly define its requirements. If we are going to patch it that can only be guesswork and trial+error, with the main issue being to identify the places in the code where it should happen in the first place.