Merge r68487 from svn+ssh://pythondev@svn.python.org/python/trunk:

- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
  biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
diff --git a/Misc/NEWS b/Misc/NEWS
index f9aa06f..9c77b8c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -114,6 +114,9 @@
 
 - FileIO's mode attribute now always includes ``"b"``.
 
+- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
+  biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
+
 Extension Modules
 -----------------