From 7f0f7dadca4838275553a644c70e1f6b0d05d463 Mon Sep 17 00:00:00 2001
From: Joseph Wright <joseph.wright@morningstar2.co.uk>
Date: Thu, 7 Dec 2017 09:31:45 +0000
Subject: [PATCH] Check configuration actually exists

---
 l3build.lua | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/l3build.lua b/l3build.lua
index f182ddb3..3746a049 100644
--- a/l3build.lua
+++ b/l3build.lua
@@ -2509,7 +2509,13 @@ end
 if #checkconfigs == 1 and
    checkconfigs[1] ~= stdconfig and
    (options["target"] == "check" or options["target"] == "save") then
-   dofile("./" .. checkconfigs[1] .. ".lua")
+   local config = "./" .. checkconfigs[1] .. ".lua"
+   if fileexists(config) then
+     dofile(config)
+   else
+     print("Error: Cannot find configuration " ..  checkconfigs[1])
+     exit(1)
+   end
 end
 
 -- Call the main function