gcc-9.1 compile error about libusbmuxd

[nikias]

That's not a correct fix. Problem here is that configure didn't detect pselect availability. Can you run configure again and see if it detects pselect? If so config.h will have a #define HAVE_PSELECT 1 otherwise please could you post config.log somewhere (like pastebin)? Thanks.

[cshlxm]

I have same error ,and pselect has not been detected ,and there was no #define HAVE_PSELECT 1 in config.h

[sanitariu]

Here is the logfile:
https://pastebin.com/hyD48nQt

I think here is why it uses system pselect:
#ifdef HAVE_INOTIFY
#include <sys/inotify.h>
#include <sys/select.h>

And in select.h we have it already:
extern int pselect (int __nfds, fd_set *__restrict __readfds,
fd_set *__restrict __writefds,
fd_set *__restrict __exceptfds,
const struct timespec *__restrict __timeout,
const __sigset_t *__restrict __sigmask);

[Hiepars]

i have same issue.
add : #define HAVE_PSELECT 1
to config.h
then it works

[sanitariu]

ok which is the right solution :) ?

[nikias]

The right solution is to figure out why it doesn't detect pselect as being available

[nikias]

Uh my bad, looks like I forgot to commit the change in configure.ac - fixed with commit 60109fd.