From 5e1c4223899cb24ecf5f4ad1fd26c3ac22841e77 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sun, 15 Oct 2017 18:27:48 -0700
Subject: Handle unknown options in form `--latex-engine=foo`.

Previously these were not triggering the helpful message
about option name changes.
---
 src/Text/Pandoc/App.hs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/Text')

diff --git a/src/Text/Pandoc/App.hs b/src/Text/Pandoc/App.hs
index 6b64a314e..46696c425 100644
--- a/src/Text/Pandoc/App.hs
+++ b/src/Text/Pandoc/App.hs
@@ -110,7 +110,8 @@ parseOptions options' defaults = do
   let (actions, args, unrecognizedOpts, errors) =
            getOpt' Permute options' rawArgs
 
-  let unknownOptionErrors = foldr handleUnrecognizedOption [] unrecognizedOpts
+  let unknownOptionErrors = foldr handleUnrecognizedOption [] $
+                  map (takeWhile (/= '=')) unrecognizedOpts
 
   unless (null errors && null unknownOptionErrors) $
      E.throwIO $ PandocOptionError $
-- 
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