From b6f9eee96005d5b804427065caf39db4f880a695 Mon Sep 17 00:00:00 2001
From: cannorin <cannorin@users.noreply.github.com>
Date: Thu, 5 May 2022 19:19:35 +0900
Subject: [PATCH] Fix #160

---
 CHANGELOG.md | 3 +++
 src/Main.fs  | 1 +
 2 files changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e2e6739..8102e589 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+- Ts2ocaml now fails when it encounters unknown options, instead of just ignoring it.
+
 ## [1.4.2] - 2022-03-16
 - Fix a bug which caused ts2ocaml to generate invalid type declarations.
 - Fix a bug which causes ts2ocaml to crash when loading mutually-referencing source files.
diff --git a/src/Main.fs b/src/Main.fs
index dffd60ab..f69cf6d9 100644
--- a/src/Main.fs
+++ b/src/Main.fs
@@ -26,6 +26,7 @@ let main argv =
          .Invoke(argv)
          .wrap(yargs.terminalWidth() |> Some)
          .parserConfiguration({| ``parse-positional-numbers`` = false |})
+         .strict()
          .config()
     |> GlobalOptions.register
     |> Target.register parse Targets.JsOfOCaml.Target.target