package/win32: build.sh: add an option to set the Windows SDK version

The NTDDI version contains the windows version and the subversion like the
Windows 10 flavor or Service Pack. This is supported by mingw64 and MSDK.

https://docs.microsoft.com/en-us/windows/win32/winprog/using-the-windows-headers

extras/package/win32/build.sh

@@ -31,6 +31,7 @@ OPTIONS:
    -D <win_path> Create PDB files during the build, map the VLC sources to <win_path>
                  e.g.: -D c:/sources/vlc
    -x            Add extra checks when compiling
+   -S <sdkver>   Use maximum Windows API version (0x0601000 by default)
    -u            Use the Universal C Runtime (instead of msvcrt)
    -w            Restrict to Windows Store APIs
    -z            Build without GUI (libvlc only)
@@ -39,7 +40,7 @@ EOF
 }
 
 ARCH="x86_64"
-while getopts "hra:pcli:sb:dD:xuwzo:" OPTION
+while getopts "hra:pcli:sb:dD:xS:uwzo:" OPTION
 do
      case $OPTION in
          h)
@@ -81,6 +82,9 @@ do
          x)
              EXTRA_CHECKS="yes"
          ;;
+         S)
+             NTDDI=$OPTARG
+         ;;
          u)
              BUILD_UCRT="yes"
          ;;
@@ -218,7 +222,16 @@ if [ ! -z "$BUILD_UCRT" ]; then
 
     if [ ! -z "$WINSTORE" ]; then
         SHORTARCH="$SHORTARCH-uwp"
-        CPPFLAGS="$CPPFLAGS -D_WIN32_WINNT=0x0A00 -DWINVER=0x0A00 -DWINAPI_FAMILY=WINAPI_FAMILY_APP -D_UNICODE -DUNICODE"
+        CPPFLAGS="$CPPFLAGS -DWINAPI_FAMILY=WINAPI_FAMILY_APP -D_UNICODE -DUNICODE"
+
+        if [ -z "$NTDDI" ]; then
+            WINVER=0x0A00
+        else
+            WINVER=`echo ${NTDDI} |cut -c 1-6`
+            if [ "$WINVER" != "0x0A00" ]; then
+                echo "Unsupported SDK/NTDDI version ${NTDDI} for Winstore"
+            fi
+        fi
 
         # WinstoreCompat: hopefully can go away someday
         LDFLAGS="$LDFLAGS -lwindowsapp -lwindowsappcompat"
@@ -228,8 +241,6 @@ if [ ! -z "$BUILD_UCRT" ]; then
         EXTRA_CRUNTIME="vcruntime140_app"
     else
         SHORTARCH="$SHORTARCH-ucrt"
-        # The current minimum for VLC is Windows 7
-        CPPFLAGS="$CPPFLAGS -D_WIN32_WINNT=0x0601 -DWINVER=0x0601"
         # this library doesn't exist yet, so use ucrt twice as a placeholder
         # EXTRA_CRUNTIME="vcruntime140"
         EXTRA_CRUNTIME="ucrt"
@@ -258,11 +269,24 @@ if [ ! -z "$BUILD_UCRT" ]; then
 
     # the values are not passed to the makefiles/configures
     export LDFLAGS
-    export CPPFLAGS
 else
-    # The current minimum for VLC is Windows 7 and to use the regular msvcrt
-    CPPFLAGS="$CPPFLAGS -D_WIN32_WINNT=0x0601 -DWINVER=0x0601 -D__MSVCRT_VERSION__=0x700"
+    # use the regular msvcrt
+    CPPFLAGS="$CPPFLAGS -D__MSVCRT_VERSION__=0x700"
 fi
+
+if [ -n "$NTDDI" ]; then
+    WINVER=`echo ${NTDDI} |cut -c 1-6`
+    CPPFLAGS="$CPPFLAGS -DNTDDI_VERSION=$NTDDI"
+fi
+if [ -z "$WINVER" ]; then
+    # The current minimum for VLC is Windows 7
+    WINVER=0x0601
+fi
+CPPFLAGS="$CPPFLAGS -D_WIN32_WINNT=${WINVER} -DWINVER=${WINVER}"
+
+# the values are not passed to the makefiles/configures
+export CPPFLAGS
+
 CFLAGS="$CPPFLAGS $CFLAGS"
 CXXFLAGS="$CPPFLAGS $CXXFLAGS"