From 00e4d79db112140c47e32af6b1b09454f4e04f05 Mon Sep 17 00:00:00 2001
From: Ben Harris <bjh21@bjh21.me.uk>
Date: Thu, 10 Nov 2022 00:40:52 +0000
Subject: [PATCH] js: Enable STRICT_JS in Emscripten

This turns on "use strict" in JavaScript, which enforces declaring
variables among other things, and may allow better optimisations.
---
 cmake/platforms/emscripten.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmake/platforms/emscripten.cmake b/cmake/platforms/emscripten.cmake
index 5c13f90..244cfcb 100644
--- a/cmake/platforms/emscripten.cmake
+++ b/cmake/platforms/emscripten.cmake
@@ -37,7 +37,8 @@ string(JOIN "," emcc_export_string ${emcc_export_list})
 set(CMAKE_C_LINK_FLAGS "\
 -s ALLOW_MEMORY_GROWTH=1 \
 -s EXPORTED_FUNCTIONS='[${emcc_export_string}]' \
--s EXTRA_EXPORTED_RUNTIME_METHODS='[cwrap,callMain]'")
+-s EXTRA_EXPORTED_RUNTIME_METHODS='[cwrap,callMain]' \
+-s STRICT_JS=1")
 if(WASM)
   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -s WASM=1")
 else()