appveyor configuration

appveyor.yml

@@ -1,16 +1,30 @@
 environment:
   matrix:
+    - GENERATOR: "Visual Studio 12 2013"
+      CONFIG: Release
+      BOOST_ROOT: "C:\\Libraries\\boost"
+      BOOST_LIBRARYDIR: "C:\\Libraries\\boost\\lib32-msvc-12.0"
+
+    - GENERATOR: "Visual Studio 12 2013 Win64"
+      CONFIG: Release
+      BOOST_ROOT: "C:\\Libraries\\boost"
+      BOOST_LIBRARYDIR: "C:\\Libraries\\boost\\lib64-msvc-12.0"
+
     - GENERATOR: "Visual Studio 14 2015"
       CONFIG: Release
       BOOST_ROOT: "C:\\Libraries\\boost_1_59_0"
       BOOST_LIBRARYDIR: "C:\\Libraries\\boost_1_59_0\\lib32-msvc-14.0"
 
+    - GENERATOR: "Visual Studio 14 2015 Win64"
+      CONFIG: Release
+      BOOST_ROOT: "C:\\Libraries\\boost_1_59_0"
+      BOOST_LIBRARYDIR: "C:\\Libraries\\boost_1_59_0\\lib64-msvc-14.0"
+
 install:
   - git submodule init
   - git submodule update
 
 build_script:
-  - tree /a /f C:\Libraries\boost_1_59_0
   - mkdir build
   - cd build
   - cmake "-G%GENERATOR%" -DBOOST_ROOT="%BOOST_ROOT%" -DBOOST_LIBRARYDIR="%BOOST_LIBRARYDIR%" -DBoost_USE_STATIC_LIBS=ON -DWITH_UNIT_TESTS=ON ..