Re: [PATCH v2 3/3] pretty: add abbrev option to %(describe)

On 10/26/21 8:06 AM, Đoàn Trần Công Danh wrote:

Thanks for the advice. In v1 of this patchset I attempted to do a developer build but failed due to preexisting errors:

    CC run-command.o
run-command.c: In function ‘async_die_is_recursing’:
run-command.c:1102:9: error: ‘pthread_setspecific’ expecting 1 byte in a
region of size 0 [-Werror=stringop-overread]
 1102 |         pthread_setspecific(async_die_counter, (void *)1);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/openssl/crypto.h:415,
                 from /usr/include/openssl/comp.h:16,
                 from /usr/include/openssl/ssl.h:17,
                 from git-compat-util.h:309,
                 from cache.h:4,
                 from run-command.c:1:
/usr/include/pthread.h:1308:12: note: in a call to function
‘pthread_setspecific’ declared with attribute ‘access (none, 2)’
 1308 | extern int pthread_setspecific (pthread_key_t __key,
      |            ^~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

My system has a custom compiled glibc from git roughly around the 2.34 release (a similar environment could be obtained by using Fedora rawhide I guess), and this commit looks mighty suspicious: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=a1561c3bbe8e72c6e44280d1eb5e529d2da4ecd0

For this reason, I did not bother to try testing v2 under a developer build, leading to my overlooking this issue. ;)