diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 532ece643043..b4aae43eac37 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2016-01-29  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/69506
+	* config/os/newlib/os_defines.h (_GLIBCXX_USE_WEAK_REF): Define.
+
 2016-01-28  John David Anglin  <danglin@gcc.gnu.org>
 
 	PR libstdc++/69450
diff --git a/libstdc++-v3/config/os/newlib/os_defines.h b/libstdc++-v3/config/os/newlib/os_defines.h
index 4a09dd1f3e38..2a87e74bcdb0 100644
--- a/libstdc++-v3/config/os/newlib/os_defines.h
+++ b/libstdc++-v3/config/os/newlib/os_defines.h
@@ -53,6 +53,9 @@
 // their dtors are called
 #define _GLIBCXX_THREAD_ATEXIT_WIN32 1
 
+// See libstdc++/69506
+#define _GLIBCXX_USE_WEAK_REF 0
+
 #endif
 
 #endif