From 5f7763b0a51db4d95fdf0b019a52c0683c83845e Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Fri, 26 Jun 2015 10:08:41 +0200
Subject: added error message in case of a bad platform value

---
 src/luarocks/cfg.lua | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src')

diff --git a/src/luarocks/cfg.lua b/src/luarocks/cfg.lua
index 704c7daf..f5d7fb5e 100644
--- a/src/luarocks/cfg.lua
+++ b/src/luarocks/cfg.lua
@@ -257,6 +257,12 @@ do
    local lst = {} -- use temp array to not confuse `pairs` in loop
    for plat in pairs(cfg.platforms) do 
       if cfg.platforms[plat] then  -- entries set to 'false' skipped
+         if not platform_order[plat] then
+            local pl = ""
+            for k,_ in pairs(platform_order) do pl = pl .. ", " .. k end
+            io.stderr:write("Bad platform given; "..tostring(plat)..". Valid entries are: "..pl:sub(3,-1) ..".\n")
+            os.exit(cfg.errorcodes.CONFIGFILE)
+         end
          table.insert(lst, plat)
       else
          cfg.platforms[plat] = nil
-- 
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