add vcpkg cairo install to appveyor config to perform unit testings

diff --git a/appveyor.yml b/appveyor.yml
index 1f4e1010b9862e7be3c24203353c3f8ad10fc345..a758e67237cf1cf8831ece300edc2eaca2ceacdd 100644 (file)
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,6 +17,9 @@ for:
         - image: Visual Studio 2019
     environment:
       APPVEYOR_SAVE_CACHE_ON_ERROR: true
+    install:
+      - vcpkg install cairo
+      - vcpkg integrate install --recurse
     build_script:
       - msbuild /p:Configuration=Release /t:restore
       - msbuild /p:Configuration=Release