As pointed out in bug 580546, that function does not exit.
Some platforms do not support scanning and printing 64 bit integers,
even though the types are supported. On such platforms #G_GINT64_FORMAT
is not defined. Note that scanf() may not support 64 bit integers, even
-if #G_GINT64_FORMAT is defined. Due to its weak error handling, scanf() is not
-recommended for parsing anyway; consider using g_strtoull() instead.
+if #G_GINT64_FORMAT is defined. Due to its weak error handling, scanf()
+is not recommended for parsing anyway; consider using g_ascii_strtoull()
+instead.
</para>
</note>