Possible fix for Python 3.5 x64 builds (#126)

See ogrisel/python-appveyor-demo@09a1c8672e

appveyor.yml

@@ -54,6 +54,7 @@ environment:
       PYTHON_ARCH:    "64"
 
 install:
+  - "%PIP% install --disable-pip-version-check --upgrade pip"
   - "%PIP% install wheel twine"
 
 build_script:

scripts/win_wrapper.cmd

@@ -21,23 +21,46 @@
 
 SET COMMAND_TO_RUN=%*
 SET WIN_SDK_ROOT=C:\Program Files\Microsoft SDKs\Windows
+SET WIN_WDK=c:\Program Files (x86)\Windows Kits\10\Include\wdf
 
-SET MAJOR_PYTHON_VERSION="%PYTHON_VERSION:~0,1%"
-IF %MAJOR_PYTHON_VERSION% == "2" (
-    SET WINDOWS_SDK_VERSION="v7.0"
-) ELSE IF %MAJOR_PYTHON_VERSION% == "3" (
-    SET WINDOWS_SDK_VERSION="v7.1"
+:: Extract the major and minor versions, and allow for the minor version to be
+:: more than 9.  This requires the version number to have two dots in it.
+SET MAJOR_PYTHON_VERSION=%PYTHON_VERSION:~0,1%
+IF "%PYTHON_VERSION:~3,1%" == "." (
+    SET MINOR_PYTHON_VERSION=%PYTHON_VERSION:~2,1%
 ) ELSE (
-    ECHO Unsupported Python version: "%MAJOR_PYTHON_VERSION%"
-    EXIT 1
+    SET MINOR_PYTHON_VERSION=%PYTHON_VERSION:~2,2%
 )
 
-IF "%PYTHON_ARCH%"=="64" (
-    SET DISTUTILS_USE_SDK=1
-    SET MSSdk=1
-    "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Setup\WindowsSdkVer.exe" -q -version:%WINDOWS_SDK_VERSION%
-    "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Bin\SetEnv.cmd" /x64 /release
-    call %COMMAND_TO_RUN% || EXIT 1
+:: Based on the Python version, determine what SDK version to use, and whether
+:: to set the SDK for 64-bit.
+IF %MAJOR_PYTHON_VERSION% == 2 (
+    SET WINDOWS_SDK_VERSION="v7.0"
+    SET SET_SDK_64=Y
 ) ELSE (
-    call %COMMAND_TO_RUN% || EXIT 1
+    IF %MAJOR_PYTHON_VERSION% == 3 (
+        SET WINDOWS_SDK_VERSION="v7.1"
+        IF %MINOR_PYTHON_VERSION% LEQ 4 (
+            SET SET_SDK_64=Y
+        ) ELSE (
+            SET SET_SDK_64=N
+            IF EXIST "%WIN_WDK%" (
+                :: See: https://connect.microsoft.com/VisualStudio/feedback/details/1610302/
+                REN "%WIN_WDK%" 0wdf
+            )
+        )
+    ) ELSE (
+        ECHO Unsupported Python version: "%MAJOR_PYTHON_VERSION%"
+        EXIT 1
+    )
+)
+
+IF %PYTHON_ARCH% == 64 (
+    IF %SET_SDK_64% == Y (
+        SET DISTUTILS_USE_SDK=1
+        SET MSSdk=1
+        "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Setup\WindowsSdkVer.exe" -q -version:%WINDOWS_SDK_VERSION%
+        "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Bin\SetEnv.cmd" /x64 /release
+    )
 )
+call %COMMAND_TO_RUN% || EXIT 1