diff -urN win.org/patches/webkitgtk-2.4.11/06-tm-webkit-inlines.patch win.inline/patches/webkitgtk-2.4.11/06-tm-webkit-inlines.patch
--- win.org/patches/webkitgtk-2.4.11/06-tm-webkit-inlines.patch	1970-01-01 01:00:00.000000000 +0100
+++ win.inline/patches/webkitgtk-2.4.11/06-tm-webkit-inlines.patch	2021-03-03 00:14:44.963261159 +0100
@@ -0,0 +1,63 @@
+#! /bin/sh
+patch -p1 -f $* < $0
+exit $?
+
+# TM: fix undef'd references from inline functions
+# TM: Might be caused by mingw64
+# TM:   e.g. StructureInlines.h:inline bool Structure::putWillGrowOutOfLineStorage()
+
+diff -ur webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/MapConstructor.cpp webkitgtk-2.4.11/Source/JavaScriptCore/runtime/MapConstructor.cpp
+--- webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/MapConstructor.cpp	2016-04-10 08:48:36.000000000 +0200
++++ webkitgtk-2.4.11/Source/JavaScriptCore/runtime/MapConstructor.cpp	2021-02-26 15:18:51.160000282 +0100
+@@ -32,6 +32,7 @@
+ #include "JSGlobalObject.h"
+ #include "JSMap.h"
+ #include "MapPrototype.h"
++#include "StructureInlines.h"
+ 
+ namespace JSC {
+ 
+diff -ur webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/MapIteratorConstructor.cpp webkitgtk-2.4.11/Source/JavaScriptCore/runtime/MapIteratorConstructor.cpp
+--- webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/MapIteratorConstructor.cpp	2016-04-10 08:48:36.000000000 +0200
++++ webkitgtk-2.4.11/Source/JavaScriptCore/runtime/MapIteratorConstructor.cpp	2021-02-26 15:20:22.967904354 +0100
+@@ -31,6 +31,7 @@
+ #include "JSGlobalObject.h"
+ #include "JSMapIterator.h"
+ #include "MapIteratorPrototype.h"
++#include "StructureInlines.h"
+ 
+ namespace JSC {
+ 
+diff -ur webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/SetConstructor.cpp webkitgtk-2.4.11/Source/JavaScriptCore/runtime/SetConstructor.cpp
+--- webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/SetConstructor.cpp	2016-04-10 08:48:36.000000000 +0200
++++ webkitgtk-2.4.11/Source/JavaScriptCore/runtime/SetConstructor.cpp	2021-02-26 15:20:44.823881342 +0100
+@@ -33,6 +33,7 @@
+ #include "JSSet.h"
+ #include "MapData.h"
+ #include "SetPrototype.h"
++#include "StructureInlines.h"
+ 
+ namespace JSC {
+ 
+diff -ur webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/SetIteratorConstructor.cpp webkitgtk-2.4.11/Source/JavaScriptCore/runtime/SetIteratorConstructor.cpp
+--- webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/SetIteratorConstructor.cpp	2016-04-10 08:48:36.000000000 +0200
++++ webkitgtk-2.4.11/Source/JavaScriptCore/runtime/SetIteratorConstructor.cpp	2021-02-26 15:20:58.083867356 +0100
+@@ -31,6 +31,7 @@
+ #include "JSGlobalObject.h"
+ #include "JSSetIterator.h"
+ #include "SetIteratorPrototype.h"
++#include "StructureInlines.h"
+ 
+ namespace JSC {
+ 
+diff -ur webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/WeakMapConstructor.cpp webkitgtk-2.4.11/Source/JavaScriptCore/runtime/WeakMapConstructor.cpp
+--- webkitgtk-2.4.11-org/Source/JavaScriptCore/runtime/WeakMapConstructor.cpp	2016-04-10 08:48:36.000000000 +0200
++++ webkitgtk-2.4.11/Source/JavaScriptCore/runtime/WeakMapConstructor.cpp	2021-02-26 15:21:09.711855079 +0100
+@@ -31,6 +31,7 @@
+ #include "JSGlobalObject.h"
+ #include "JSWeakMap.h"
+ #include "WeakMapPrototype.h"
++#include "StructureInlines.h"
+ 
+ namespace JSC {
+ 
