[gcr] ui: Fix build for GTK+ 3.10

[Stefan Walter <stefw src gnome org>]

commit 6a749ade9b7c1192ae44a8c24fda2d878d3c04a0
Author: Stef Walter <stefw redhat com>
Date:   Sat Sep 13 08:12:45 2014 +0200

    ui: Fix build for GTK+ 3.10

 ui/gcr-display-view.c  |    5 +++++
 ui/gcr-viewer-window.c |    4 ++++
 2 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/ui/gcr-display-view.c b/ui/gcr-display-view.c
index 2fa0f82..2b4db51 100644
--- a/ui/gcr-display-view.c
+++ b/ui/gcr-display-view.c
@@ -1168,8 +1168,13 @@ _gcr_display_view_append_message (GcrDisplayView *self,
 
        if (name != NULL) {
                image = gtk_image_new_from_icon_name (name, GTK_ICON_SIZE_MENU);
+#if GTK_CHECK_VERSION (3, 12, 0)
                gtk_widget_set_margin_start (image, MESSAGE_PADDING);
                gtk_widget_set_margin_end (image, MESSAGE_PADDING);
+#else
+               gtk_widget_set_margin_left (image, MESSAGE_PADDING);
+               gtk_widget_set_margin_right (image, MESSAGE_PADDING);
+#endif
                gtk_widget_show (image);
 
                anchor = gtk_text_buffer_create_child_anchor (self->pv->buffer, &iter);
diff --git a/ui/gcr-viewer-window.c b/ui/gcr-viewer-window.c
index ca10b88..99a6d4f 100644
--- a/ui/gcr-viewer-window.c
+++ b/ui/gcr-viewer-window.c
@@ -123,7 +123,11 @@ gcr_viewer_window_constructed (GObject *obj)
 
        gtk_widget_set_halign (bbox, 0.5);
        gtk_widget_set_valign (bbox, 0.5);
+#if GTK_CHECK_VERSION (3, 12, 0)
        gtk_widget_set_margin_end (bbox, 12);
+#else
+       gtk_widget_set_margin_right (bbox, 12);
+#endif
 
        self->pv->viewer = gcr_viewer_widget_new ();
        g_object_bind_property (self->pv->viewer, "display-name",