[gnome-builder] work with directories

[Christian Hergert <chergert src gnome org>]

commit 0696bc047a40ab4dd69ccc49b57c80232cb9360f
Author: Christian Hergert <christian hergert me>
Date:   Fri Mar 20 02:41:38 2015 -0700

    work with directories

 libide/autotools/ide-autotools-build-system.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/libide/autotools/ide-autotools-build-system.c b/libide/autotools/ide-autotools-build-system.c
index 082f933..2643120 100644
--- a/libide/autotools/ide-autotools-build-system.c
+++ b/libide/autotools/ide-autotools-build-system.c
@@ -126,7 +126,7 @@ ide_autotools_build_system_discover_file_worker (GTask        *task,
       return;
     }
 
-  parent = g_file_get_parent (file);
+  parent = g_object_ref (file);
 
   while (parent != NULL)
     {
@@ -158,6 +158,8 @@ ide_autotools_build_system_discover_file_worker (GTask        *task,
       g_clear_object (&tmp);
     }
 
+  g_clear_object (&parent);
+
   g_task_return_new_error (task,
                            G_IO_ERROR,
                            G_IO_ERROR_NOT_FOUND,