Re: Emacs 28.1 doesn't compile on Mac OS 10.7.5

[Werner LEMBERG]

>> sysdep.c:4133:3: error: use of undeclared identifier 'rusage_info_current'
>>   rusage_info_current ri;
>>   ^
>> sysdep.c:4134:7: warning: implicit declaration of function
>>                  'proc_pid_rusage' is invalid in C99
>>                  [-Wimplicit-function-declaration]
>>   if (proc_pid_rusage(proc_id, RUSAGE_INFO_CURRENT, (rusage_info_t *) &ri) 
>> == 0)
>>       ^
>>   ...
>> ```
> 
> Can you please look in your system headers and tell where is
> rusage_info_current declared?

It's not defined at all on macOS 10.7.5.  According to

  https://developer.apple.com/documentation/kernel/rusage_info_current

it was introduced in macOS 10.10.


    Werner