[ghex] Fix build with GCC 6

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 1f39eeffc54d2233231cb2dd4d41fd0c3cf4cdae
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Jun 13 08:41:09 2016 -0500

    Fix build with GCC 6

 src/chartable.c   |    3 +++
 src/ghex-window.c |    4 ++++
 src/ui.c          |    3 +++
 3 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/src/chartable.c b/src/chartable.c
index 3ef1c5f..371526c 100644
--- a/src/chartable.c
+++ b/src/chartable.c
@@ -186,7 +186,10 @@ GtkWidget *create_char_table()
                else
                        row[0] = "";
                for(col = 1; col < 4; col++) {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
                        label = g_strdup_printf(fmt[col], i);
+#pragma GCC diagnostic pop
                        row[col] = label;
                }
                for(col = 0; col < 8; col++) {
diff --git a/src/ghex-window.c b/src/ghex-window.c
index 1cd82d8..b855195 100644
--- a/src/ghex-window.c
+++ b/src/ghex-window.c
@@ -781,6 +781,8 @@ ghex_window_update_status_message(GHexWindow *win)
         return;
     }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
     current_pos = gtk_hex_get_cursor(win->gh);
     if(g_snprintf(fmt, FMT_LEN, _("Offset: %s"), offset_fmt) < FMT_LEN) {
         g_snprintf(status, STATUS_LEN, fmt, current_pos);
@@ -795,6 +797,8 @@ ghex_window_update_status_message(GHexWindow *win)
                 }
             }
         }
+#pragma GCC diagnostic pop
+
         ghex_window_show_status(win, status);
     }
     else
diff --git a/src/ui.c b/src/ui.c
index 4488346..37bc27e 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -112,10 +112,13 @@ create_dialog_title(GtkWidget *window, gchar *title)
 
        win = ghex_window_get_active();
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
        if(win != NULL && win->gh != NULL)
                full_title = g_strdup_printf(title, win->gh->document->path_end);
        else
                full_title = g_strdup_printf(title, "");
+#pragma GCC diagnostic pop
 
        if(full_title) {
                gtk_window_set_title(GTK_WINDOW(window), full_title);