Mac: espeak-ng` occasionally hangs

[anderoonies]

M1 Mac, MacOS Big Sur
Built espeak-ng from source:
eSpeak NG text-to-speech: 1.51-dev Data at: /usr/local/share/espeak-ng-data

When using espeak-ng both on the command line and as a linked library, there's occasionally no output. When invoking via command line (espeak-ng hello), the executable hangs indefinitely.

There doesn't appear to be any pattern to when it will succeed or fail, but when invoking in C code via the library, espeak-ng will work throughout the run of the program as long as it works at all.

[jaacoppi]

Potential duplicates: #12, #982

[anderoonies]

Unlike #982 I am able to build locally and get speech synthesis, but #12 may be related

…

On Sun, Aug 1, 2021 at 9:34 AM jaacoppi ***@***.***> wrote: Potential duplicates: #12 <#12>, #982 <#982> — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#996 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABSWLAIVOJIJELSE3QP76TTT2VEMTANCNFSM5BLDBA6A> .

[anderoonies]

I've isolated this to here:

espeak-ng/src/libespeak-ng/fifo.c

Line 182 in 3038d40

while ((pthread_cond_wait(&my_cond_stop_is_acknowledged, &my_mutex) == -1) && errno == EINTR)