[librsvg] fix compiler warnings.

[Hiroyuki Ikezoe <hiikezoe src gnome org>]

commit 39685a8b40e2515d6aada78a59114b559a8531b6
Author: Hiroyuki Ikezoe <poincare ikezoe net>
Date:   Tue Apr 6 19:05:57 2010 +0900

    fix compiler warnings.

 rsvg-base.c    |    2 +-
 rsvg-gobject.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/rsvg-base.c b/rsvg-base.c
index d6b1f23..c25ed0e 100644
--- a/rsvg-base.c
+++ b/rsvg-base.c
@@ -808,7 +808,7 @@ rsvg_entity_decl (void *data, const xmlChar * name, int type,
         resolvedPublicId = xmlBuildRelativeURI (publicId, (xmlChar*) rsvg_handle_get_base_uri (ctx));
 
     if (type == XML_EXTERNAL_PARAMETER_ENTITY && !content) {
-      GByteArray *arr;
+      GByteArray *arr = NULL;
 
       if (systemId)
         arr = _rsvg_acquire_xlink_href_resource ((const char *) systemId,
diff --git a/rsvg-gobject.c b/rsvg-gobject.c
index 045640f..8c6d619 100644
--- a/rsvg-gobject.c
+++ b/rsvg-gobject.c
@@ -81,7 +81,7 @@ rsvg_ctx_free_helper (gpointer key, gpointer value, gpointer user_data)
     xmlFree (entval->orig);
     xmlFree (entval);
 #else
-	xmlFreeNode(entval);
+	xmlFreeNode((xmlNode *) entval);
 #endif
 }