Try of MSVC build in the CI

appveyor.yml

@@ -8,6 +8,7 @@ environment:
   matrix:
   - TOOLCHAIN: "msys2"
   - TOOLCHAIN: "cygwin"
+  - TOOLCHAIN: "msvc"
 
 branches:
   only:
@@ -26,13 +27,19 @@ build_script:
         C:\msys64\usr\bin\bash -l -c "cd /c/projects/readstat && ./configure"
         C:\msys64\usr\bin\bash -l -c "cd /c/projects/readstat && make"
       }
-      else
+      elseif ($env:TOOLCHAIN -eq "cygwin")
       {
-        c:\cygwin64\setup-x86_64.exe -qnNdO -s http://cygwin.mirror.constant.com -l C:/cygwin64/var/cache/setup -P libiconv-devel -P ragel -P zlib-devel
+        C:\cygwin64\setup-x86_64.exe -qnNdO -s http://cygwin.mirror.constant.com -l C:/cygwin64/var/cache/setup -P libiconv-devel -P ragel -P zlib-devel
         C:\cygwin64\bin\sh -lc "cd /cygdrive/c/projects/readstat && ./autogen.sh"
         C:\cygwin64\bin\sh -lc "cd /cygdrive/c/projects/readstat && ./configure"
         C:\cygwin64\bin\sh -lc "cd /cygdrive/c/projects/readstat && make"
       }
+      else
+      {
+        call "C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd" /x64
+        call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86_amd64
+        msbuild C:/projects/readstat/VS17/ReadStat.sln
+      }
 
 test_script:
   - ps: |
@@ -41,18 +48,26 @@ test_script:
         $env:MSYSTEM="MINGW64"
         C:\msys64\usr\bin\bash -l -c "cd /c/projects/readstat && make check"
       }
-      else
+      elseif ($env:TOOLCHAIN -eq "cygwin")
       {
         C:\cygwin64\bin\sh -lc "cd /cygdrive/c/projects/readstat && make check"
       }
+      else
+      {
+        # TODO
+      }
 
 on_success:
   - ps: |
       if ($env:TOOLCHAIN -eq "msys2")
       {
         C:\msys64\usr\bin\bash -l -c "cd /c/projects/readstat && cat ./test-suite.log"
       }
-      else
+      elseif ($env:TOOLCHAIN -eq "cygwin")
       {
         C:\cygwin64\bin\sh -lc "cd /cygdrive/c/projects/readstat && cat ./test-suite.log"
       }
+      else
+      {
+        # TODO
+      }