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

["Mattias Engdegård" <mattiase@acm.org>]

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15 apr. 2022 kl. 17.23 skrev Werner LEMBERG <wl@gnu.org>:

>> It seems likely that this version has __clang_major__ = 4 despite
>> begin based on 3.2; if so, then the attached change may be the right
>> solution.  Would you give it a try?
> 
> This helps, thanks.

Thanks for testing. Paul, would you consider something like that patch (repeated here) for gnulib?
This is likely a regression in Emacs 28.1 for Werner's build environment.


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diff --git a/lib/verify.h b/lib/verify.h
index 07b2f4866f..c2d2a56670 100644
--- a/lib/verify.h
+++ b/lib/verify.h
@@ -34,7 +34,7 @@ #define _GL_VERIFY_H
 #ifndef __cplusplus
 # if (201112L <= __STDC_VERSION__ \
       || (!defined __STRICT_ANSI__ \
-          && (4 < __GNUC__ + (6 <= __GNUC_MINOR__) || 4 <= __clang_major__)))
+          && (4 < __GNUC__ + (6 <= __GNUC_MINOR__) || 5 <= __clang_major__)))
 #  define _GL_HAVE__STATIC_ASSERT 1
 # endif
 # if (202000L <= __STDC_VERSION__ \

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> sysdep.c:4133:3: error: use of undeclared identifier 'rusage_info_current'
>  rusage_info_current ri;


This appears to be a consequence of 6d51805154 (bug#48548) which uses an interface that was introduced in macOS 10.9. It should be possible to unify the old and new code to get something that works on your system as well. I'll write a patch.

This, too, seems to be a regression in Emacs 28.1.