Index: src/alter.c
==================================================================
--- src/alter.c
+++ src/alter.c
@@ -1415,14 +1415,16 @@
           if( sParse.nErr ) rc = sParse.rc;
           sqlite3WalkSelect(&sWalker, pTab->pSelect);
         }else{
           /* Modify any FK definitions to point to the new table. */
 #ifndef SQLITE_OMIT_FOREIGN_KEY
-          FKey *pFKey;
-          for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
-            if( sqlite3_stricmp(pFKey->zTo, zOld)==0 ){
-              renameTokenFind(&sParse, &sCtx, (void*)pFKey->zTo);
+          if( db->flags & SQLITE_ForeignKeys ){
+            FKey *pFKey;
+            for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
+              if( sqlite3_stricmp(pFKey->zTo, zOld)==0 ){
+                renameTokenFind(&sParse, &sCtx, (void*)pFKey->zTo);
+              }
             }
           }
 #endif
 
           /* If this is the table being altered, fix any table refs in CHECK

Index: test/mmap1.test
==================================================================
--- test/mmap1.test
+++ test/mmap1.test
@@ -282,10 +282,11 @@
 #
 forcedelete test2.db
 sqlite3 db2 test2.db
 do_test 6.0 {
   db2 eval {
+    PRAGMA auto_vacuum = 0;
     PRAGMA page_size = 4096;
   }
 } {}
 do_test 6.1 {
   db2 eval {

Index: test/resetdb.test
==================================================================
--- test/resetdb.test
+++ test/resetdb.test
@@ -211,10 +211,11 @@
 db2 close
 reset_db
 
 do_execsql_test 700 {
   PRAGMA page_size=512;
+  PRAGMA auto_vacuum = 0;
   CREATE TABLE t1(a,b,c);
   CREATE INDEX t1a ON t1(a);
   CREATE INDEX t1bc ON t1(b,c);
   WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
     INSERT INTO t1(a,b,c) SELECT x, randomblob(100),randomblob(100) FROM c;