Re: [PATCH v2] async_die_is_recursing: work around GCC v11.x issue on Fedora

Hi Carlo,

On Thu, 4 Nov 2021, Carlo Arenas wrote:

On Thu, Nov 4, 2021 at 1:43 AM Johannes Schindelin
[off-list ref] wrote:

quoted

My best guess is that my GCC (which is v11.2.0) and Fedora's GCC (which is
v11.2.1 plus the usual Fedora customization) behave slightly differently
with respect to that optional `size-index` argument:
`pthread_setspecific()` is essentially declared without a `size-index`, so
I guess GCC v11.2.1 probably defaults to `size-index = 1`.

Got to read the whole explanation that Victoria put together.

for the warning to trigger on that gcc, you got also to have the
attribute in the header as shown by the link[1] she provided, and
which I am sure could be a nice thing to send toward those helpful
folks of the MSYS2 project so it can be added to their WinPthread
headers, as was done in glibc.

D'oh. Of course we do not have glibc in the Git for Windows SDK! Thanks
for helping me understand this.

Ciao,
Dscho

Carlo

[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=a1561c3bbe8