From 7d9d795af86b7b6e1317cfb496d9d9c570c3ef9a Mon Sep 17 00:00:00 2001
From: Fabio Alessandrelli <fabio.alessandrelli@gmail.com>
Date: Wed, 19 May 2021 11:48:46 +0200
Subject: [PATCH] [HTML5] Fix GDNative compilation with emcc 2.0.19+

Add `WARN_ON_UNDEFINED_SYMBOLS=0` for the main module (which defines
`godot_js_main` as extern coming from the "side" module, i.e. the main
Godot binary).

(cherry picked from commit 14c057eab605e8018a1ac7f98ed0f16faeabf9a2)
---
 platform/javascript/SCsub | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/javascript/SCsub b/platform/javascript/SCsub
index 6b63eb9a325..c10d3bfd608 100644
--- a/platform/javascript/SCsub
+++ b/platform/javascript/SCsub
@@ -46,6 +46,7 @@ if env["gdnative_enabled"]:
     sys_env.Append(LINKFLAGS=["-s", "MAIN_MODULE=1"])
     sys_env.Append(CCFLAGS=["-s", "EXPORT_ALL=1"])
     sys_env.Append(LINKFLAGS=["-s", "EXPORT_ALL=1"])
+    sys_env.Append(LINKFLAGS=["-s", "WARN_ON_UNDEFINED_SYMBOLS=0"])
     # Force exporting the standard library (printf, malloc, etc.)
     sys_env["ENV"]["EMCC_FORCE_STDLIBS"] = "libc,libc++,libc++abi"
     # The main emscripten runtime, with exported standard libraries.