Index: ext/misc/json1.c
==================================================================
--- ext/misc/json1.c
+++ ext/misc/json1.c
@@ -1834,15 +1834,15 @@
     jsonAppendChar(pStr, ']');
     if( pStr->bErr ){
       if( pStr->bErr==1 ) sqlite3_result_error_nomem(ctx);
       assert( pStr->bStatic );
     }else if( isFinal ){
-      sqlite3_result_text(ctx, pStr->zBuf, pStr->nUsed,
+      sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed,
                           pStr->bStatic ? SQLITE_TRANSIENT : sqlite3_free);
       pStr->bStatic = 1;
     }else{
-      sqlite3_result_text(ctx, pStr->zBuf, pStr->nUsed, SQLITE_TRANSIENT);
+      sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT);
       pStr->nUsed--;
     }
   }else{
     sqlite3_result_text(ctx, "[]", 2, SQLITE_STATIC);
   }
@@ -1887,11 +1887,11 @@
     }else if( z[i]=='\\' ){
       i++;
     }
   }
   pStr->nUsed -= i;      
-  memmove(&z[1], &z[i+1], pStr->nUsed-1);
+  memmove(&z[1], &z[i+1], (size_t)pStr->nUsed-1);
 }
 #else
 # define jsonGroupInverse 0
 #endif
 
@@ -1933,15 +1933,15 @@
     jsonAppendChar(pStr, '}');
     if( pStr->bErr ){
       if( pStr->bErr==1 ) sqlite3_result_error_nomem(ctx);
       assert( pStr->bStatic );
     }else if( isFinal ){
-      sqlite3_result_text(ctx, pStr->zBuf, pStr->nUsed,
+      sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed,
                           pStr->bStatic ? SQLITE_TRANSIENT : sqlite3_free);
       pStr->bStatic = 1;
     }else{
-      sqlite3_result_text(ctx, pStr->zBuf, pStr->nUsed, SQLITE_TRANSIENT);
+      sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT);
       pStr->nUsed--;
     }
   }else{
     sqlite3_result_text(ctx, "{}", 2, SQLITE_STATIC);
   }

Index: ext/rtree/geopoly.c
==================================================================
--- ext/rtree/geopoly.c
+++ ext/rtree/geopoly.c
@@ -178,11 +178,11 @@
       continue;
     }
     break;
   }
   if( z[j-1]<'0' ) return 0;
-  if( pVal ) *pVal = atof((const char*)p->z);
+  if( pVal ) *pVal = (GeoCoord)atof((const char*)p->z);
   p->z += j;
   return 1;
 }
 
 /*
@@ -433,12 +433,12 @@
   int ii;
   if( p ){
     for(ii=0; ii<p->nVertex; ii++){
       x0 = p->a[ii*2];
       y0 = p->a[ii*2+1];
-      x1 = A*x0 + B*y0 + E;
-      y1 = C*x0 + D*y0 + F;
+      x1 = (GeoCoord)(A*x0 + B*y0 + E);
+      y1 = (GeoCoord)(C*x0 + D*y0 + F);
       p->a[ii*2] = x1;
       p->a[ii*2+1] = y1;
     }
     sqlite3_result_blob(context, p->hdr, 
        4+8*p->nVertex, SQLITE_TRANSIENT);
@@ -509,15 +509,15 @@
     int ii;
     mnX = mxX = p->a[0];
     mnY = mxY = p->a[1];
     for(ii=1; ii<p->nVertex; ii++){
       double r = p->a[ii*2];
-      if( r<mnX ) mnX = r;
-      else if( r>mxX ) mxX = r;
+      if( r<mnX ) mnX = (float)r;
+      else if( r>mxX ) mxX = (float)r;
       r = p->a[ii*2+1];
-      if( r<mnY ) mnY = r;
-      else if( r>mxY ) mxY = r;
+      if( r<mnY ) mnY = (float)r;
+      else if( r>mxY ) mxY = (float)r;
     }
     if( pRc ) *pRc = SQLITE_OK;
     if( aCoord==0 ){
       geopolyBboxFill:
       pOut = sqlite3_realloc(p, sizeof(GeoPoly)+sizeof(GeoCoord)*6);

Index: ext/rtree/rtree.c
==================================================================
--- ext/rtree/rtree.c
+++ ext/rtree/rtree.c
@@ -3271,11 +3271,11 @@
 **     DROP TABLE <tablename>;    -- Would fail with SQLITE_LOCKED
 **   COMMIT;
 */
 static int rtreeSavepoint(sqlite3_vtab *pVtab, int iSavepoint){
   Rtree *pRtree = (Rtree *)pVtab;
-  int iwt = pRtree->inWrTrans;
+  u8 iwt = pRtree->inWrTrans;
   UNUSED_PARAMETER(iSavepoint);
   pRtree->inWrTrans = 0;
   nodeBlobReset(pRtree);
   pRtree->inWrTrans = iwt;
   return SQLITE_OK;

Index: src/memdb.c
==================================================================
--- src/memdb.c
+++ src/memdb.c
@@ -14,12 +14,12 @@
 ** block of memory.
 **
 ** This file also implements interface sqlite3_serialize() and
 ** sqlite3_deserialize().
 */
-#ifdef SQLITE_ENABLE_DESERIALIZE
 #include "sqliteInt.h"
+#ifdef SQLITE_ENABLE_DESERIALIZE
 
 /*
 ** Forward declaration of objects used by this utility
 */
 typedef struct sqlite3_vfs MemVfs;