Backport SQLite memcmp patch.

third_party/sqlite/src/src/analyze.c

 /*
 ** 2005 July 8
 **
 ** The author disclaims copyright to this source code.  In place of
 ** a legal notice, here is a blessing:
 **
 **    May you do good and not evil.
 **    May you find forgiveness for yourself and forgive others.
 **    May you share freely, never taking more than you give.
 **
@@ skipping 124 matching lines @@
 #endif
 
   v = sqlite3GetVdbe(pParse);
   if( v==0 || NEVER(pTab==0) ){
     return;
   }
   if( pTab->tnum==0 ){
     /* Do not gather statistics on views or virtual tables */
     return;
   }
-  if( memcmp(pTab->zName, "sqlite_", 7)==0 ){
+  if( sqlite3_strnicmp(pTab->zName, "sqlite_", 7)==0 ){
     /* Do not gather statistics on system tables */
     return;
   }
   assert( sqlite3BtreeHoldsAllMutexes(db) );
   iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
   assert( iDb>=0 );
   assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
 #ifndef SQLITE_OMIT_AUTHORIZATION
   if( sqlite3AuthCheck(pParse, SQLITE_ANALYZE, pTab->zName, 0,
       db->aDb[iDb].zName ) ){
@@ skipping 385 matching lines @@
   for(i=0; *z && i<=n; i++){
     v = 0;
     while( (c=z[0])>='0' && c<='9' ){
       v = v*10 + c - '0';
       z++;
     }
     if( i==0 ) pTable->nRowEst = v;
     if( pIndex==0 ) break;
     pIndex->aiRowEst[i] = v;
     if( *z==' ' ) z++;
-    if( memcmp(z, "unordered", 10)==0 ){
+    if( strcmp(z, "unordered")==0 ){
       pIndex->bUnordered = 1;
       break;
     }
   }
   return 0;
 }
 
 /*
 ** If the Index.aSample variable is not NULL, delete the aSample[] array
 ** and its contents.
@@ skipping 148 matching lines @@
 #endif
 
   if( rc==SQLITE_NOMEM ){
     db->mallocFailed = 1;
   }
   return rc;
 }
 
 
 #endif /* SQLITE_OMIT_ANALYZE */