From 98591e36dbdfa483130d200dbe3423611dfbab81 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Tue, 4 Aug 2020 13:11:27 +0100
Subject: [Minor] Make lua_ffi more flexible to use

---
 lualib/rspamadm/mime.lua | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'lualib/rspamadm/mime.lua')

diff --git a/lualib/rspamadm/mime.lua b/lualib/rspamadm/mime.lua
index 06b163d9b..c8b1f8450 100644
--- a/lualib/rspamadm/mime.lua
+++ b/lualib/rspamadm/mime.lua
@@ -754,6 +754,11 @@ local function sign_handler(opts)
 
   local lua_dkim = require("lua_ffi").dkim
 
+  if not lua_dkim then
+    io.stderr:write('FFI support is required: please use LuaJIT or install lua-ffi')
+    os.exit(1)
+  end
+
   local sign_key
   if rspamd_util.file_exists(opts.key) then
     sign_key = lua_dkim.load_sign_key(opts.key, 'file')
-- 
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