Index: ext/fts3/fts3_aux.c
==================================================================
--- ext/fts3/fts3_aux.c
+++ ext/fts3/fts3_aux.c
@@ -415,18 +415,18 @@
     const unsigned char *zStr = sqlite3_value_text(apVal[0]);
     assert( (iEq==0 && iGe==-1) || (iEq==-1 && iGe==0) );
     if( zStr ){
       pCsr->filter.zTerm = sqlite3_mprintf("%s", zStr);
       if( pCsr->filter.zTerm==0 ) return SQLITE_NOMEM;
-      pCsr->filter.nTerm = strlen(pCsr->filter.zTerm);
+      pCsr->filter.nTerm = (int)strlen(pCsr->filter.zTerm);
     }
   }
 
   if( iLe>=0 ){
     pCsr->zStop = sqlite3_mprintf("%s", sqlite3_value_text(apVal[iLe]));
     if( pCsr->zStop==0 ) return SQLITE_NOMEM;
-    pCsr->nStop = strlen(pCsr->zStop);
+    pCsr->nStop = (int)strlen(pCsr->zStop);
   }
   
   if( iLangid>=0 ){
     iLangVal = sqlite3_value_int(apVal[iLangid]);
 

Index: src/btree.c
==================================================================
--- src/btree.c
+++ src/btree.c
@@ -6822,11 +6822,11 @@
   int k;                          /* Current slot in pCArray->apEnd[] */
   u8 *pSrcEnd;                    /* Current pCArray->apEnd[k] value */
 
   assert( i<iEnd );
   j = get2byte(&aData[hdr+5]);
-  if( NEVER(j>usableSize) ){ j = 0; }
+  if( NEVER(j>(u32)usableSize) ){ j = 0; }
   memcpy(&pTmp[j], &aData[j], usableSize - j);
 
   for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){}
   pSrcEnd = pCArray->apEnd[k];