diff --git a/configure.ac b/configure.ac
index d59de6ced687ebe6c1641913d07eedabe7c4f5f3..448224a0ad571f9d4251d136ff69ebb54cc9fb5b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -199,6 +199,7 @@ AC_ARG_ENABLE([threadpool-debugging],
 )
 if test "$enable_threadpool_debugging" = "yes"; then
    AC_DEFINE([SWIFT_DEBUG_THREADPOOL],1,[Enable threadpool debugging])
+   LDFLAGS="$LDFLAGS -rdynamic"
 fi
 
 # Check if the general timers are switched on.