re PR libstdc++/77944 (FAIL: 20_util/variant/compile.cc (test for excess errors))

	PR libstdc++/77944
	* include/std/variant: include <bits/funcexcept.h> for __try and __catch.

From-SVN: r241153

libstdc++-v3/ChangeLog

+2016-10-14  Tim Shen  <timshen@google.com>
+
+	PR libstdc++/77944
+	* include/std/variant: include <bits/funcexcept.h> for __try and __catch.
+
 2016-10-14  Jonathan Wakely  <jwakely@redhat.com>
 
 	* include/std/functional (_Reference_wrapper_base_impl): Remove.

libstdc++-v3/include/std/variant

@@ -38,6 +38,7 @@
 #include <type_traits>
 #include <utility>
 #include <bits/enable_special_members.h>
+#include <bits/functexcept.h>
 #include <bits/move.h>
 #include <bits/uses_allocator.h>