[gthumb] fixed compiler warnings

[Paolo Bacchilega <paobac src gnome org>]

commit b4f6d00cc8159b8d74d715bee658f5e4056052ab
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Oct 16 13:19:18 2011 +0200

    fixed compiler warnings

 extensions/jpeg_utils/jpegtran.c |    1 +
 gthumb/gth-histogram-view.c      |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/extensions/jpeg_utils/jpegtran.c b/extensions/jpeg_utils/jpegtran.c
index 6831b91..5aefcfa 100644
--- a/extensions/jpeg_utils/jpegtran.c
+++ b/extensions/jpeg_utils/jpegtran.c
@@ -159,6 +159,7 @@ jpegtran_internal (struct jpeg_decompress_struct  *srcinfo,
 
 	switch (transformation) {
 	case GTH_TRANSFORM_NONE:
+	default:
 		transform = JXFORM_NONE;
 		break;
 	case GTH_TRANSFORM_FLIP_H:
diff --git a/gthumb/gth-histogram-view.c b/gthumb/gth-histogram-view.c
index 2e877d4..ba46e73 100644
--- a/gthumb/gth-histogram-view.c
+++ b/gthumb/gth-histogram-view.c
@@ -581,7 +581,7 @@ histogram_view_scroll_event_cb (GtkWidget      *widget,
 				gpointer        user_data)
 {
 	GthHistogramView *self = user_data;
-	int               channel;
+	int               channel = 0;
 
 	if (self->priv->histogram == NULL)
 		return FALSE;