diff -up ./data/handleDB.php.rpm ./data/handleDB.php
--- ./data/handleDB.php.rpm	2017-03-16 21:26:06.000000000 +0100
+++ ./data/handleDB.php	2017-03-17 06:32:29.487099296 +0100
@@ -12,7 +12,8 @@
  * @since    Release 1.0.0alpha1 of PHP_CompatInfo_Db
  */
 
-require_once dirname(__DIR__) . '/vendor/autoload.php';
+require_once '/usr/share/php/Symfony/Component/autoload.php';
+require_once dirname(__DIR__) . '/src/Bartlett/CompatInfoDb/autoload.php';
 require_once __DIR__ . '/ReferenceCollection.php';
 
 use Bartlett\CompatInfoDb\ExtensionFactory;
diff -up ./src/Bartlett/CompatInfoDb/Environment.php.rpm ./src/Bartlett/CompatInfoDb/Environment.php
--- ./src/Bartlett/CompatInfoDb/Environment.php.rpm	2017-03-17 06:32:29.487099296 +0100
+++ ./src/Bartlett/CompatInfoDb/Environment.php	2017-03-17 06:41:35.210029823 +0100
@@ -55,6 +55,10 @@ class Environment
                 // install DB only if necessary (missing or modified)
                 copy($source, $dest);
             }
+        } else if (($db = getenv('BARTLETT_COMPATINFO_DB')) && file_exists($db)) {
+            $tempDir = dirname($db);
+        } else if (file_exists($db = '/usr/share/php-bartlett-php-compatinfo-db/' . $database)) {
+            $tempDir = dirname($db);
         } else {
             $tempDir = dirname(dirname(dirname(__DIR__))) . '/data';
         }
diff -up ./tests/bootstrap.php.rpm ./tests/bootstrap.php
--- ./tests/bootstrap.php.rpm	2017-03-16 21:26:06.000000000 +0100
+++ ./tests/bootstrap.php	2017-03-17 06:32:29.488099301 +0100
@@ -1,6 +1,7 @@
 <?php
 
 $baseDir   = dirname(__DIR__);
-$vendorDir = $baseDir . '/vendor';
+$vendorDir = 'Bartlett/CompatInfoDb'; // tests use include_path
 
 require_once $vendorDir . '/autoload.php';
+require_once __DIR__ . '/Reference/GenericTest.php';