[gcc(refs/users/aoliva/heads/testme)] libstdc++: xfail nanosleep tests on rtems

[Alexandre Oliva <aoliva@gcc.gnu.org>]

https://gcc.gnu.org/g:b6be9d8bddbac4327142f5dc8d053b02c0207e1f

commit b6be9d8bddbac4327142f5dc8d053b02c0207e1f
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Thu Jun 23 04:12:25 2022 -0300

    libstdc++: xfail nanosleep tests on rtems
    
    Since it has been determined that nanosleep may return slightly too
    early on RTEMS, due to clock resolution differences, expect
    30_thread/this_thread tests that have detected too-early wakeups to
    fail on RTEMS targets.
    
    
    for  libstdc++-v3/ChangeLog
    
            * testsuite/30_threads/this_thread/60421.cc: xfail on RTEMS.

Diff:
---
 libstdc++-v3/testsuite/30_threads/this_thread/60421.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libstdc++-v3/testsuite/30_threads/this_thread/60421.cc b/libstdc++-v3/testsuite/30_threads/this_thread/60421.cc
index 12dbeba1cc4..1ee249536a8 100644
--- a/libstdc++-v3/testsuite/30_threads/this_thread/60421.cc
+++ b/libstdc++-v3/testsuite/30_threads/this_thread/60421.cc
@@ -23,6 +23,7 @@
 // { dg-require-gthreads "" }
 // { dg-require-time "" }
 // { dg-require-sleep "" }
+// { dg-xfail-if "nanosleep may wake up too early" { target *-*-rtems* } }
 
 #include <thread>
 #include <chrono>