need to build twice to get the shared libraries to copy themselves in

Author: smasherprog

.appveyor.yml

@@ -35,4 +35,5 @@ build_script:
   - ctest -V -C Debug
   - cmake -DBUILD_SHARED_LIBS=ON "-DCMAKE_TOOLCHAIN_FILE=c:\projects\build\vcpkg\scripts\buildsystems\vcpkg.cmake" .. 
   - cmake --build .
+  - cmake --build .
   - ctest -V -C Debug