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-rw-r--r--libstdc++-v3/configure.ac3
1 files changed, 3 insertions, 0 deletions
diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
index 154819a..c1ecc67 100644
--- a/libstdc++-v3/configure.ac
+++ b/libstdc++-v3/configure.ac
@@ -225,6 +225,9 @@ GLIBCXX_CHECK_TMPNAM
# For pthread_cond_clockwait
GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT
+# For pthread_mutex_clocklock
+GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK
+
AC_LC_MESSAGES
# For hardware_concurrency