[Bug testsuite/100655] 'g++.dg/tsan/pthread_cond_clockwait.C' FAILs due to 'pthread_cond_clockwait' missing

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100655

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
--- a/gcc/testsuite/g++.dg/tsan/pthread_cond_clockwait.C
+++ b/gcc/testsuite/g++.dg/tsan/pthread_cond_clockwait.C
@@ -4,6 +4,10 @@

 #include <pthread.h>

+// Include this to get the libstdc++ _GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT
+// macro that indicates pthread_cond_clockwait is available.
+#include <type_traits>
+
 pthread_cond_t cv;
 pthread_mutex_t mtx;

@@ -23,7 +27,9 @@ int main() {
     struct timespec ts;
     clock_gettime(CLOCK_MONOTONIC, &ts);
     ts.tv_sec += 10;
+#ifdef _GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT
     pthread_cond_clockwait(&cv, &mtx, CLOCK_MONOTONIC, &ts);
+#endif
     pthread_mutex_unlock(&mtx);

     pthread_join(tid, NULL);