Only display help "icon" if there's a help buffer to display.
uinput() no longer barfs on a NULL prompt arg.

suspendciolib().

assigning to char.

after all!)

that initciolib() did to stdout so normal stdio stuff can be used.  To
resume ciolib mode, call initciolib() again, or use any ciolib function.

Currently, the state of the screen after a susped and after the resume is
undefined...

the mode parameter.

your whole day)

Does Win32 hate this?

To prevent mutex leaks, lock the mutex before destroying it...
To prevent sem leaks, if the return value is -1 and the sem is not invalid,
wait, post, retry.

Unfortunately, POSIX doesn't define the behaviour or sem_destroy() if called
while there are threads blocked on sem... luckily, we rarely use POSIX sems.

semaphore from being prematurely reset.

Purchase tickets to Nassau.
Flee country.