From b59fd03f1185c41015b25cbbf7a88a20825f8996 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Tue, 2 Jun 2020 15:40:39 +0200
Subject: [PATCH] appveyor.yml: workaround vcpkg upstream build issue with
 VS2015 (see https://github.com/microsoft/vcpkg/issues/1166) [skip travis]

---
 appveyor.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/appveyor.yml b/appveyor.yml
index 4e2b967d7c..dad1f35d7d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -23,9 +23,11 @@ cache:
 build_script:
   - set VCPKG_INSTALLED=C:\Tools\vcpkg\installed\%platform%-windows
   # If cached directory does not exist, update vcpkg and install dependencies
+  # The checkout of a precise sha1 for VS2015 is a workaround for https://github.com/microsoft/vcpkg/issues/11666
   - if not exist %VCPKG_INSTALLED%\bin (
       cd "C:\Tools\vcpkg" &
       git pull > nul &
+      (if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2015" (git checkout a64dc07690bc8806e717e190f62eb58e198b599c)) &
       .\bootstrap-vcpkg.bat -disableMetrics &
       vcpkg install sqlite3[core,tool]:"%platform%"-windows &
       vcpkg install tiff:"%platform%"-windows &