* Samuel Thibault:
> Florian Weimer, le lun. 17 févr. 2020 10:41:49 +0100, a ecrit:
>> > ---
>> > sysdeps/i386/nptl/tls.h | 46 ++++++++++++++++--------------------
>> > sysdeps/mach/hurd/i386/tls.h | 46 ++++++++++++++++--------------------
>> > sysdeps/x86_64/nptl/tls.h | 46 ++++++++++++++++--------------------
>> > 3 files changed, 60 insertions(+), 78 deletions(-)
>> >
>> > diff --git a/sysdeps/i386/nptl/tls.h b/sysdeps/i386/nptl/tls.h
>> > index ffead90857..28053a77f3 100644
>> > --- a/sysdeps/i386/nptl/tls.h
>> > +++ b/sysdeps/i386/nptl/tls.h
>> > @@ -255,6 +255,9 @@ tls_fill_user_desc (union user_desc_init *desc,
>> > /* Read member of the thread descriptor directly. */
>> > # define THREAD_GETMEM(descr, member) \
>> > ({ __typeof (descr->member) __value;
>> > \
>> > + _Static_assert (sizeof (__value) == 1
>> > \
>> > + || sizeof (__value) == 4 \
>> > + || sizeof (__value) == 8); \
>> > if (sizeof (__value) == 1)
>> > \
>>
>> This (and the other changes) broke the x86_64-linux-gnu build.
>
> Uh?
>
> It built successfully on my box, I wonder what difference we have.
I think single-argument _Static_assert is only available with GCC 9
and later.
