From cb06e13a73a82443a70aa3057240cbd3ada28630 Mon Sep 17 00:00:00 2001
From: Pedro Gonnet <gonnet@google.com>
Date: Tue, 25 Jul 2017 18:53:30 +0200
Subject: [PATCH] add a ldflag to make sure symbol names are exported.

---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index d59de6ced6..448224a0ad 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.
-- 
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