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-rw-r--r--libstdc++-v3/testsuite/thread/pthread4.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/libstdc++-v3/testsuite/thread/pthread4.cc b/libstdc++-v3/testsuite/thread/pthread4.cc
index be1ae680fa7..4cf21e64e9c 100644
--- a/libstdc++-v3/testsuite/thread/pthread4.cc
+++ b/libstdc++-v3/testsuite/thread/pthread4.cc
@@ -99,7 +99,7 @@ template class __gnu_cxx::__mt_alloc<std::_List_node<std::string> >;
int
main (void)
{
-#if defined(__sun) && defined(__svr4__)
+#if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
pthread_setconcurrency (2);
#endif