bug#40741: Cannot build 27.0.91 on macOS 10.6.4

[Tak Kunihiro]

merge 40741 36172
tags 40741 notabug
close 40741
quit

>>>>> I cannot build emacs 27.0.91 on macOS 10.6.4 with Xcode 11.3.1.
>>>>> I can build emacs 26.3 on the same environment.
>>>> 
>>>> I believe this is a duplicate of bug#36172, as linked on that page.
>>>> 
>>>> Are you using any flags with configure?
>>> 
>>> I saw suggestion on bug#36172 to call following command.  That did not
>>> change situation.
>>> 
>>>  sudo xcode-select -s /Applications/Xcode.app
>>> 
>>> I call both `./configure' and `make' without any options.
>> 
>> On difference computer with macOS 10.6.4, I confirm that I could build
>> emacs 27.0.91.  Thus I think this is my local problem.
> 
> I uninstall Xcode 11.3.1 and related files.
> Then install Xcode 11.3.1 again.  Now I can build emacs 27.0.91.
> 
> I have upgraded Xcode several times on the past.  I suppose piles
> of upgrade brought glitches.