From d6e9703edbd28508882fab3ce698617d036abfdd Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 11 Apr 2024 14:39:31 +0200
Subject: Diagnose empty paths in config.config.{load,save}

GitHub issue #372.
---
 libbuild2/config/init.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libbuild2/config/init.cxx')

diff --git a/libbuild2/config/init.cxx b/libbuild2/config/init.cxx
index d1a57b9..2f134c4 100644
--- a/libbuild2/config/init.cxx
+++ b/libbuild2/config/init.cxx
@@ -487,7 +487,9 @@ namespace build2
 
             const string& s (f.string ());
 
-            if (s[0] != '~')
+            if (s.empty ())
+              fail << "empty path in config.config.load";
+            else if (s[0] != '~')
               load_config_file (f, l);
             else if (s == "~host"   || s == "~host-no-warnings" ||
                      s == "~build2" || s == "~build2-no-warnings")
-- 
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