[gthumb] added missing declaration

[Paolo Bacchilega <paobac src gnome org>]

commit f08d7bb2bcbe1ab40141335bcb5712ce575e793a
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Jul 20 14:49:05 2011 +0200

    added missing declaration

 .../exiv2_tools/gth-metadata-provider-exiv2.c      |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/extensions/exiv2_tools/gth-metadata-provider-exiv2.c b/extensions/exiv2_tools/gth-metadata-provider-exiv2.c
index 71f138d..6321ad4 100644
--- a/extensions/exiv2_tools/gth-metadata-provider-exiv2.c
+++ b/extensions/exiv2_tools/gth-metadata-provider-exiv2.c
@@ -118,6 +118,7 @@ gth_metadata_provider_exiv2_write (GthMetadataProvider   *self,
 	gsize    size;
 	GError  *error = NULL;
 	GObject *metadata;
+	int      i;
 
 	if (((flags & GTH_METADATA_WRITE_FORCE_EMBEDDED) != GTH_METADATA_WRITE_FORCE_EMBEDDED) && ! eel_gconf_get_boolean (PREF_STORE_METADATA_IN_FILES, TRUE))
 		return;