master: see https://help.appveyor.com/discussions/problems/28461-x86_64-w64-mingw32-download-failed.

bradbell · bradbell · commit fb4353a32954 · 2020-11-06T06:17:05.000-07:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,5 +1,5 @@
 # -----------------------------------------------------------------------------
-# CppAD: C++ Algorithmic Differentiation: Copyright (C) 2003-18 Bradley M. Bell
+# CppAD: C++ Algorithmic Differentiation: Copyright (C) 2003-20 Bradley M. Bell
 #
 # CppAD is distributed under the terms of the
 #              Eclipse Public License Version 2.0.
@@ -19,6 +19,7 @@ environment:
   matrix:
     - HOST_ARCH_ARG: --host=x86_64-w64-mingw32
       ADD_PATH: /mingw64/bin
+      IMAGE: Visual Studio 2019
 
 # scripts that run after cloning repository
 install:
