From 5deb5b042d7bea9f32f64e00948b520b752baf9c Mon Sep 17 00:00:00 2001
From: Joerg Bornemann <joerg.bornemann@qt.io>
Date: Mon, 14 Jun 2021 15:27:07 +0200
Subject: [PATCH] qmake: Enable response files for WASM on Windows

This fixes the "Command line is too long" error when building a project
with many object files for WASM on Windows.

Fixes: QTBUG-94032
Change-Id: I29251da9795b267c968da86617da0311bf882a64
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
(cherry picked from commit 4372cac01cb811b995d3142d8d8e93182937a03d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 mkspecs/wasm-emscripten/qmake.conf | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mkspecs/wasm-emscripten/qmake.conf b/mkspecs/wasm-emscripten/qmake.conf
index 2b108a5e900..b84ef977ebe 100644
--- a/mkspecs/wasm-emscripten/qmake.conf
+++ b/mkspecs/wasm-emscripten/qmake.conf
@@ -81,6 +81,8 @@ QMAKE_EXTENSION_STATICLIB = a      # llvm bitcode
 
 QMAKE_AR                = emar cqs
 equals(QMAKE_HOST.os, Windows) {
+    QMAKE_LINK_OBJECT_MAX = 10
+    QMAKE_LINK_OBJECT_SCRIPT = object_script
     QMAKE_AR_CMD = \
         "$(file >$(OBJECTS_DIR)/$(TARGET).rsp, $(subst \\,/,$(OBJECTS)))$$escape_expand(\\n\\t)" \
         "$(AR) $(DESTDIR)$(TARGET) @$(OBJECTS_DIR)/$(TARGET).rsp"