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Re: master b99ec5d 3/3: Work around __has_attribute bug in clang 3.4


From: Mattias Engdegård
Subject: Re: master b99ec5d 3/3: Work around __has_attribute bug in clang 3.4
Date: Sat, 23 Jan 2021 11:11:33 +0100

23 jan. 2021 kl. 01.46 skrev Paul Eggert <eggert@cs.ucla.edu>:

> Perhaps someone who can build on macOS directly can provide more info about 
> the problem. I had no problem building with clang 11.0 on Ubuntu but Apple's 
> clang is special.

Apple's clang seems to come with a builtin

#define __nonnull _Nonnull

which clashes with the the one in lib/cdefs.h. Perhaps we should call it 
something else.




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