From de0d7a335c76cd158f69d83788985ed05db5756b Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Mon, 30 Jan 2012 17:53:48 -0500
Subject: [PATCH] Emit meaningful error messages

That is useful, even if this is only an internal tool.
I have been scratching my head why this tool would
break distcheck...
---
 gio/data-to-c.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/gio/data-to-c.c b/gio/data-to-c.c
index b20369f01..9dcf286bf 100644
--- a/gio/data-to-c.c
+++ b/gio/data-to-c.c
@@ -26,12 +26,19 @@ main (int argc, char **argv)
 {
   char *content;
   int i;
+  GError *error = NULL;
 
   if (argc != 3)
-    return 1;
+    {
+      g_printerr ("Usage: data-to-c <filename> <variable>");
+      return 1;
+    }
 
-  if (!g_file_get_contents (argv[1], &content, NULL, NULL))
-    return 1;
+  if (!g_file_get_contents (argv[1], &content, NULL, &error))
+    {
+      g_printerr ("%s", error->message);
+      return 1;
+    }
 
   g_print ("const char %s[] = \"", argv[2]);