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-rw-r--r--make/bootstrap.lua3
1 files changed, 3 insertions, 0 deletions
diff --git a/make/bootstrap.lua b/make/bootstrap.lua
index 6c27cf95..00036f34 100644
--- a/make/bootstrap.lua
+++ b/make/bootstrap.lua
@@ -69,6 +69,9 @@ package.searchers[2] = function (name)
return err
end
local f = io.open(filename)
+ if not f then
+ return 'cannot open file:' .. filename
+ end
local buf = f:read '*a'
f:close()
local relative = filename:sub(1, #root) == root and filename:sub(#root + 2) or filename