Index: tool/mkvsix.tcl
==================================================================
--- tool/mkvsix.tcl
+++ tool/mkvsix.tcl
@@ -260,10 +260,21 @@
       "\r\n    " {MinVSVersion="11.0"}]
   set extraSdkPath ""
   set extraFileListAttributes [appendArgs \
       "\r\n    " {AppliesTo="WindowsAppContainer"} \
       "\r\n    " {DependsOn="Microsoft.VCLibs, version=11.0"}]
+} elseif {[string equal -nocase $packageFlavor WinRT_2013]} then {
+  set shortName SQLite.WinRT.2013
+  set displayName "SQLite for Windows Runtime (2013)"
+  set targetPlatformIdentifier Windows
+  set targetPlatformVersion v8.0
+  set minVsVersion [appendArgs \
+      "\r\n    " {MinVSVersion="12.0"}]
+  set extraSdkPath ""
+  set extraFileListAttributes [appendArgs \
+      "\r\n    " {AppliesTo="WindowsAppContainer"} \
+      "\r\n    " {DependsOn="Microsoft.VCLibs, version=12.0"}]
 } elseif {[string equal -nocase $packageFlavor WinRT81]} then {
   set shortName SQLite.WinRT81
   set displayName "SQLite for Windows Runtime (Windows 8.1)"
   set targetPlatformIdentifier Windows
   set targetPlatformVersion v8.1
@@ -279,10 +290,19 @@
   set targetPlatformIdentifier "Windows Phone"
   set targetPlatformVersion v8.0
   set minVsVersion [appendArgs \
       "\r\n    " {MinVSVersion="11.0"}]
   set extraSdkPath "\\..\\$targetPlatformIdentifier"
+  set extraFileListAttributes ""
+} elseif {[string equal -nocase $packageFlavor WP80_2013]} then {
+  set shortName SQLite.WP80.2013
+  set displayName "SQLite for Windows Phone (2013)"
+  set targetPlatformIdentifier "Windows Phone"
+  set targetPlatformVersion v8.0
+  set minVsVersion [appendArgs \
+      "\r\n    " {MinVSVersion="12.0"}]
+  set extraSdkPath "\\..\\$targetPlatformIdentifier"
   set extraFileListAttributes ""
 } elseif {[string equal -nocase $packageFlavor WP81]} then {
   set shortName SQLite.WP81
   set displayName "SQLite for Windows Phone 8.1"
   set targetPlatformIdentifier "WindowsPhoneApp"
@@ -303,11 +323,11 @@
       "\r\n    " {AppliesTo="VisualC"} \
       "\r\n    " {DependsOn="Microsoft.VCLibs, version=11.0"}]
 } else {
   fail [appendArgs \
       "unsupported package flavor, must be one of: " \
-      "WinRT WinRT81 WP80 WP81 Win32"]
+      "WinRT WinRT_2013 WinRT81 WP80 WP80_2013 WP81 Win32"]
 }
 
 if {$argc >= 4} then {
   set platformNames [list]