Index: Makefile.msc
==================================================================
--- Makefile.msc
+++ Makefile.msc
@@ -1416,10 +1416,11 @@
   $(TOP)\ext\misc\regexp.c \
   $(TOP)\ext\misc\remember.c \
   $(TOP)\ext\misc\series.c \
   $(TOP)\ext\misc\spellfix.c \
   $(TOP)\ext\misc\totype.c \
+  $(TOP)\ext\misc\unionvtab.c \
   $(TOP)\ext\misc\wholenumber.c
 
 # Source code to the library files needed by the test fixture
 # (non-amalgamation)
 #

Index: ext/misc/unionvtab.c
==================================================================
--- ext/misc/unionvtab.c
+++ ext/misc/unionvtab.c
@@ -131,11 +131,11 @@
 ** set to SQLITE_NOMEM.
 */
 static char *unionStrdup(int *pRc, const char *zIn){
   char *zRet = 0;
   if( zIn ){
-    int nByte = strlen(zIn) + 1;
+    int nByte = (int)strlen(zIn) + 1;
     zRet = unionMalloc(pRc, nByte);
     if( zRet ){
       memcpy(zRet, zIn, nByte);
     }
   }