electron/patches/node/build_bring_back_node_with_ltcg_configuration.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Deepak Mohan <[email protected]>
Date: Wed, 16 Oct 2019 13:41:12 -0700
Subject: build: bring back node_with_ltcg configuration

This was moved to code node.gyp as part of https://github.com/nodejs/node/pull/25931
which caused native modules size increase which were depending on
this configuration transitively https://github.com/nodejs/node/issues/29501.
THe fix for this should land in node-gyp as discussed in above issue,
landing this as temporary patch.

diff --git a/common.gypi b/common.gypi
index f07e65f719a1a5939997dfcae7bc787ee6391f4d..69b5439a5c19230e5568450c3aca9ce27661d77c 100644
--- a/common.gypi
+++ b/common.gypi
@@ -180,6 +180,26 @@
             'cflags': [ '-fPIE' ],
             'ldflags': [ '-fPIE', '-pie' ]
           }],
+          ['node_with_ltcg=="true"', {
+            'msvs_settings': {
+              'VCCLCompilerTool': {
+                'WholeProgramOptimization': 'true' # /GL, whole program optimization, needed for LTCG
+              },
+              'VCLibrarianTool': {
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL', # incremental link-time code generation
+                ]
+              },
+              'VCLinkerTool': {
+                'OptimizeReferences': 2, # /OPT:REF
+                'EnableCOMDATFolding': 2, # /OPT:ICF
+                'LinkIncremental': 1, # disable incremental linking
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL', # incremental link-time code generation
+                ]
+              }
+            }
+          }]
         ],
         'msvs_settings': {
           'VCCLCompilerTool': {