[Bug libstdc++/65500] [5 Regression] FAIL: 17_intro/headers/c++2014/all_attributes.cc (test for excess errors)

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65500

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
After some discussion with Torvald I'm wondering whether it would be better to
never use the PTHREAD_RWLOCK_INITIALIZER macro anyway, so we can initialize the
rwlock with (non-standard) attributes such as
PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP