build sql as a component - this will help ensure there is only one copy

sql/statement.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SQL_STATEMENT_H_
 #define SQL_STATEMENT_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
 #include "sql/connection.h"
+#include "sql/sql_export.h"
 
 namespace sql {
 
 // Possible return values from ColumnType in a statement. These should match
 // the values in sqlite3.h.
 enum ColType {
   COLUMN_TYPE_INTEGER = 1,
   COLUMN_TYPE_FLOAT = 2,
   COLUMN_TYPE_TEXT = 3,
   COLUMN_TYPE_BLOB = 4,
   COLUMN_TYPE_NULL = 5,
 };
 
 // Normal usage:
 //   sql::Statement s(connection_.GetUniqueStatement(...));
 //   if (!s)  // You should check for errors before using the statement.
 //     return false;
 //
 //   s.BindInt(0, a);
 //   if (s.Step())
 //     return s.ColumnString(0);
 //
 // Step() and Run() just return true to signal success. If you want to handle
 // specific errors such as database corruption, install an error handler in
 // in the connection object using set_error_delegate().
-class Statement {
+class SQL_EXPORT Statement {
  public:
   // Creates an uninitialized statement. The statement will be invalid until
   // you initialize it via Assign.
   Statement();
 
   explicit Statement(scoped_refptr<Connection::StatementRef> ref);
   ~Statement();
 
   // Initializes this object with the given statement, which may or may not
   // be valid. Use is_valid() to check if it's OK.
@@ skipping 106 matching lines @@
 
   // See Succeeded() for what this holds.
   bool succeeded_;
 
   DISALLOW_COPY_AND_ASSIGN(Statement);
 };
 
 }  // namespace sql
 
 #endif  // SQL_STATEMENT_H_