From d18302cb54d5ad000495b3f6a72eae303a39e4e6 Mon Sep 17 00:00:00 2001
From: Shane Grant <w.shane.grant@gmail.com>
Date: Sun, 3 Nov 2019 21:21:44 -0800
Subject: [PATCH] Add MSVC 2019 to build, default ctor for static object
 relates #592

---
 appveyor.yml                             | 13 +++++++++----
 include/cereal/details/static_object.hpp |  3 ++-
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/appveyor.yml b/appveyor.yml
index 5371cd479..1e62961ad 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,5 @@
 # can use variables like {build} and {branch}
-version: 1.2.{build}
+version: 1.3.{build}
 pull_requests:
   do_not_increment_build_number: true
 
@@ -22,9 +22,14 @@ environment:
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
       VS_VERSION_MAJOR: 15
       BOOST_ROOT: C:\Libraries\boost_1_66_0
-      #    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019 Preview
-      #      VS_VERSION_MAJOR: 16
-      #      BOOST_ROOT: C:\Libraries\boost_1_66_0
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+      VS_VERSION_MAJOR: 16
+      BOOST_ROOT: C:\Libraries\boost_1_71_0
+
+matrix:
+  exclude:
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    - platform: Win32
 
 platform:
   - Win32
diff --git a/include/cereal/details/static_object.hpp b/include/cereal/details/static_object.hpp
index cd30348c3..470a792e0 100644
--- a/include/cereal/details/static_object.hpp
+++ b/include/cereal/details/static_object.hpp
@@ -94,7 +94,8 @@ namespace cereal
             std::unique_lock<std::mutex> lock;
           #else
           public:
-	          LockGuard(LockGuard const &) = default; // prevents implicit copy ctor warning
+            LockGuard() = default;
+            LockGuard(LockGuard const &) = default; // prevents implicit copy ctor warning
             ~LockGuard() CEREAL_NOEXCEPT {} // prevents variable not used
           #endif
         };