--- imageapi_gd.original.install	Thu Apr 30 15:16:09 2009
+++ imageapi_gd.install	Thu Apr 30 15:32:05 2009
@@ -57,15 +57,16 @@ function imageapi_gd_requirements($phase
       );
     }
 
+    // Test PHP memory_limit
     $memory_limit = ini_get('memory_limit');
+    $requirements['imagecache_memory_limit'] = array(
+      'title' => $t('ImageAPI GD Memory Limit'),
+      'value' => $memory_limit == -1 ? t('-1 (Unlimited)') : $memory_limit,
+    );
     
-    if (parse_size($memory_limit) < parse_size('96M')) {
-      $requirements['imagecache_memory_limit'] = array(
-        'title' => $t('ImageAPI GD Memory Limit'),
-        'value' => $memory_limit,
-        'severity' => REQUIREMENT_WARNING,
-        'description' => $t('It is highly recommended that you set you PHP memory_limit to 96M to use ImageAPI GD. A 1600x1200 images consumes ~45M of memory when decompressed and there are instances where ImageAPI GD is operating on two decompressed images at once.'),
-      );
+    if ($memory_limit && $memory_limit != -1 && parse_size($memory_limit) < parse_size('96M')) {
+      $requirements['imagecache_memory_limit']['severity'] = REQUIREMENT_WARNING;
+      $requirements['imagecache_memory_limit']['description'] = $t('It is highly recommended that you set you PHP memory_limit to 96M to use ImageAPI GD. A 1600x1200 images consumes ~45M of memory when decompressed and there are instances where ImageAPI GD is operating on two decompressed images at once.');
     }
 
   }