[tracker] libtracker-data: Allow using older sqlite API

[Carlos Garnacho <carlosg src gnome org>]

commit c2213802d7171bf73b56a61293793fb6db9eb6cd
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Jun 29 21:17:57 2017 +0200

    libtracker-data: Allow using older sqlite API
    
    But warn about it, as it is unsafe.

 src/libtracker-data/tracker-db-interface-sqlite.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-data/tracker-db-interface-sqlite.c 
b/src/libtracker-data/tracker-db-interface-sqlite.c
index eb7d70e..051f6d8 100644
--- a/src/libtracker-data/tracker-db-interface-sqlite.c
+++ b/src/libtracker-data/tracker-db-interface-sqlite.c
@@ -1478,7 +1478,13 @@ open_database (TrackerDBInterface  *db_interface,
 
        sqlite3_extended_result_codes (db_interface->db, 0);
        sqlite3_busy_timeout (db_interface->db, 100000);
+
+#ifndef SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION
+#warning Using sqlite3_enable_load_extension instead of SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, this is unsafe
+       sqlite3_enable_load_extension (db_interface->db, 1);
+#else
        sqlite3_db_config (db_interface->db, SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, 1, NULL);
+#endif
 }
 
 static gboolean