Ensure c++11 examples directory is included in distribution.
diff --git a/asio/src/Makefile.am b/asio/src/Makefile.am
index ad2aa13..8422730 100644
--- a/asio/src/Makefile.am
+++ b/asio/src/Makefile.am
@@ -1,5 +1,7 @@
 SUBDIRS = examples/cpp03 tests
 
+DIST_SUBDIRS = examples/cpp03 examples/cpp11 tests
+
 EXTRA_DIST = \
 	Makefile.mgw \
 	Makefile.msc \