https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108235
--- Comment #10 from John David Anglin <danglin at gcc dot gnu.org> ---
No. We still have the following symbols in tzdb.o:
U __atomic_compare_exchange_4
U __atomic_fetch_add_4
U __atomic_fetch_add_8
U __atomic_fetch_sub_8
There was this warning compiling tzdb.o:
../../../../../gcc/libstdc++-v3/src/c++20/tzdb.cc: In function 'std::string
std::chrono::{anonymous}::zoneinfo_dir()':
../../../../../gcc/libstdc++-v3/src/c++20/tzdb.cc:983:44: warning: the address
of 'const char* __gnu_cxx::zoneinfo_dir_override()' will never be NULL
[-Waddress]
983 | static const string dir = __gnu_cxx::zoneinfo_dir_override
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
../../../../../gcc/libstdc++-v3/src/c++20/tzdb.cc:77:29: note: 'const char*
__gnu_cxx::zoneinfo_dir_override()' declared here
77 | [[gnu::weak]] const char* zoneinfo_dir_override()
| ^~~~~~~~~~~~~~~~~~~~~
