Try to fix errors when starting DoM on a machine with no config.xml.

diff --git a/src/lib/config.cc b/src/lib/config.cc
index 6c44e5153c5fb96e9f8ce3849b590a12d4df538f..f341799c4597cf815e7349c48362baf211f9ea65 100644 (file)
--- a/src/lib/config.cc
+++ b/src/lib/config.cc
@@ -166,8 +166,13 @@ void
 Config::read ()
 try
 {
+       boost::filesystem::path const config_path = config_file ();
+       if (!boost::filesystem::exists (config_path)) {
+               return;
+       }
+
        cxml::Document f ("Config");
-       f.read_file (config_file());
+       f.read_file (config_path);
 
        optional<int> version = f.optional_number_child<int> ("Version");
 
@@ -832,6 +837,12 @@ Config::config_file ()
 {
        cxml::Document f ("Config");
        boost::filesystem::path main = path("config.xml", false);
+       if (!boost::filesystem::exists (main)) {
+               /* It doesn't exist, so there can't be any links; just return it */
+               return main;
+       }
+
+       /* See if there's a link */
        f.read_file (main);
        optional<string> link = f.optional_string_child("Link");
        if (link) {