From 1d082d127e017d91bc493807a4a488dfa045a79c Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Thu, 13 Aug 2015 14:13:49 +0100
Subject: [PATCH] p2v: Print an error if gtk_init_check fails.

Apparently gtk_init_check doesn't (always?) print an error message
when it returns false, so virt-p2v just exits without any message.

This was observed on RHEL 6 when $DISPLAY was not set.
---
 p2v/main.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/p2v/main.c b/p2v/main.c
index e88e1b41b..d59465a23 100644
--- a/p2v/main.c
+++ b/p2v/main.c
@@ -197,9 +197,13 @@ main (int argc, char *argv[])
     kernel_configuration (config, cmdline, cmdline_source);
   else {
   gui:
-    if (!gui_possible)
-      /* Gtk has already printed an error. */
+    if (!gui_possible) {
+      fprintf (stderr,
+               _("%s: gtk_init_check returned false, indicating that\n"
+                 "a GUI is not possible on this host.  Check X11, $DISPLAY etc.\n"),
+               guestfs_int_program_name);
       exit (EXIT_FAILURE);
+    }
     gui_application (config);
   }