[libpeas] Fix several warnings in peas-engine.c

[Steve Frécinaux <sfre src gnome org>]

commit b2b6deb735df82e2f158d93c72a3cb404ac78fb8
Author: Steve Frécinaux <code istique net>
Date:   Mon Oct 4 10:30:22 2010 +0200

    Fix several warnings in peas-engine.c

 docs/reference/libpeas-sections.txt |    2 +-
 libpeas/peas-engine.c               |    4 ++--
 libpeas/peas-engine.h               |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/docs/reference/libpeas-sections.txt b/docs/reference/libpeas-sections.txt
index 1b954e4..a001a16 100644
--- a/docs/reference/libpeas-sections.txt
+++ b/docs/reference/libpeas-sections.txt
@@ -61,7 +61,7 @@ PeasGtkPluginManagerViewPrivate
 <TITLE>PeasEngine</TITLE>
 PeasEngine
 PeasEngineClass
-peas_engine_new
+peas_engine_get_default
 peas_engine_add_search_path
 peas_engine_rescan_plugins
 peas_engine_get_plugin_list
diff --git a/libpeas/peas-engine.c b/libpeas/peas-engine.c
index 6a0de42..1982dbd 100644
--- a/libpeas/peas-engine.c
+++ b/libpeas/peas-engine.c
@@ -297,7 +297,7 @@ peas_engine_init (PeasEngine *engine)
    * We only allow one single instance of a PeasEngine subclass. */
   g_assert (default_engine == NULL);
   default_engine = engine;
-  g_object_add_weak_pointer (engine, &default_engine);
+  g_object_add_weak_pointer (G_OBJECT (engine), (gpointer *) &default_engine);
 
   if (!g_module_supported ())
     {
@@ -1107,7 +1107,7 @@ peas_engine_set_loaded_plugins (PeasEngine   *engine,
  * If no #PeasEngine subclass has been instantiated yet, the first call
  * of this function will return a new instance of #PeasEngine.
  *
- * Returns: the existing instance of #PeasEngine.
+ * Returns: (transfer none): the existing instance of #PeasEngine.
  */
 PeasEngine *
 peas_engine_get_default (void)
diff --git a/libpeas/peas-engine.h b/libpeas/peas-engine.h
index eac4d0a..df56800 100644
--- a/libpeas/peas-engine.h
+++ b/libpeas/peas-engine.h
@@ -71,7 +71,7 @@ GType             peas_engine_get_type            (void) G_GNUC_CONST;
 PeasEngine       *peas_engine_get_default         (void);
 
 void              peas_engine_add_search_path     (PeasEngine      *engine,
-                                                   const gchar     *plugin_dir,
+                                                   const gchar     *module_dir,
                                                    const gchar     *data_dir);
 
 /* plugin management */