This should have been done in
r9-2028-g8ba7f29e3dd064 when
std::shared_mutex was changed to be defined without depending on
_GLIBCXX_USE_C99_STDINT_TR1.
libstdc++-v3/ChangeLog:
* testsuite/experimental/feat-cxx14.cc: Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
# error "<shared_mutex>"
#endif
-#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
+#if defined(_GLIBCXX_HAS_GTHREADS)
# ifndef __cpp_lib_shared_timed_mutex
# error "__cpp_lib_shared_timed_mutex"
# elif __cpp_lib_shared_timed_mutex != 201402