Fix missing inline attributes for mysql connector

Changed mysql usage tests to be linked into one executable.
This provokes multiple definition errors for non-inlined free
functions.

tests/mysql/usage/Truncated.cpp

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2013 - 2016, Roland Bock
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "TabSample.h"
+#include <cassert>
+#include <sqlpp11/alias_provider.h>
+#include <sqlpp11/functions.h>
+#include <sqlpp11/insert.h>
+#include <sqlpp11/mysql/connection.h>
+#include <sqlpp11/remove.h>
+#include <sqlpp11/select.h>
+#include <sqlpp11/transaction.h>
+#include <sqlpp11/update.h>
+
+#include <iostream>
+#include <vector>
+
+const auto library_raii = sqlpp::mysql::scoped_library_initializer_t{0, nullptr, nullptr};
+
+namespace sql = sqlpp::mysql;
+const auto tab = TabSample{};
+
+int Truncated(int, char*[])
+{
+  auto config = std::make_shared<sql::connection_config>();
+  config->user = "root";
+  config->database = "sqlpp_mysql";
+  config->debug = true;
+  config->charset = "utf8";
+  try
+  {
+    sql::connection db(config);
+  }
+  catch (const sqlpp::exception& e)
+  {
+    std::cerr << "For testing, you'll need to create a database sqlpp_mysql for user root (no password)" << std::endl;
+    std::cerr << e.what() << std::endl;
+    return 1;
+  }
+  try
+  {
+    sql::connection db(config);
+    db.execute(R"(DROP TABLE IF EXISTS tab_sample)");
+    db.execute(R"(CREATE TABLE tab_sample (
+		alpha bigint(20) AUTO_INCREMENT,
+			beta varchar(255) DEFAULT NULL,
+			gamma bool DEFAULT NULL,
+			PRIMARY KEY (alpha)
+			))");
+    db.execute(R"(DROP TABLE IF EXISTS tab_foo)");
+    db.execute(R"(CREATE TABLE tab_foo (
+		omega bigint(20) DEFAULT NULL
+			))");
+
+    db(insert_into(tab).set(tab.gamma = true, tab.beta = "cheese"));
+    db(insert_into(tab).set(tab.gamma = true, tab.beta = "cheesecake"));
+
+    {
+      for (const auto& row : db(db.prepare(sqlpp::select(all_of(tab)).from(tab).unconditionally())))
+      {
+        std::cerr << ">>> row.alpha: " << row.alpha << ", row.beta: " << row.beta << ", row.gamma: " << row.gamma << std::endl;
+      }
+    }
+
+    {
+      auto result = db(db.prepare(sqlpp::select(all_of(tab)).from(tab).where(tab.alpha == 1).limit(1u)));
+      auto& row = result.front();
+
+      std::cerr << ">>> row.alpha: " << row.alpha << ", row.beta: " << row.beta << ", row.gamma: " << row.gamma << std::endl;
+      assert(row.beta == "cheese");
+    }
+
+    {
+      auto result = db(db.prepare(sqlpp::select(all_of(tab)).from(tab).where(tab.alpha == 2).limit(1u)));
+      auto& row = result.front();
+
+      std::cerr << ">>> row.alpha: " << row.alpha << ", row.beta: " << row.beta << ", row.gamma: " << row.gamma << std::endl;
+      assert(row.beta == "cheesecake");
+    }
+  }
+  catch (const std::exception& e)
+  {
+    std::cerr << "Exception: " << e.what() << std::endl;
+    return 1;
+  }
+  return 0;
+}