From c76ae06fd1347b5489ad30f4e13b8aa7f8317fbd Mon Sep 17 00:00:00 2001
From: Lovell Fuller <github@lovell.info>
Date: Fri, 22 May 2020 13:48:14 +0100
Subject: [PATCH] Attempt to reduce file size of binaries at link time

---
 binding.gyp | 36 ++++++++++++++++++++++++++++++------
 1 file changed, 30 insertions(+), 6 deletions(-)

diff --git a/binding.gyp b/binding.gyp
index e497fd16..cd16c0bc 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -29,10 +29,22 @@
           'Release': {
             'msvs_settings': {
               'VCCLCompilerTool': {
-                'ExceptionHandling': 1
+                'ExceptionHandling': 1,
+                'WholeProgramOptimization': 'true'
+              },
+              'VCLibrarianTool': {
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL'
+                ]
               },
               'VCLinkerTool': {
-                'ImageHasSafeExceptionHandlers': 'false'
+                'ImageHasSafeExceptionHandlers': 'false',
+                'OptimizeReferences': 2,
+                'EnableCOMDATFolding': 2,
+                'LinkIncremental': 1,
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL'
+                ]
               }
             },
             'msvs_disabled_warnings': [
@@ -121,7 +133,7 @@
               '../vendor/lib/libglib-2.0.0.dylib',
               '../vendor/lib/libgobject-2.0.0.dylib',
               # Ensure runtime linking is relative to sharp.node
-              '-rpath \'@loader_path/../../vendor/lib\''
+              '-Wl,-s -rpath \'@loader_path/../../vendor/lib\''
             ]
           }],
           ['OS == "linux"', {
@@ -164,7 +176,7 @@
               '../vendor/lib/libxml2.so',
               '../vendor/lib/libz.so',
               # Ensure runtime linking is relative to sharp.node
-              '-Wl,--disable-new-dtags -Wl,-rpath=\'$${ORIGIN}/../../vendor/lib\''
+              '-Wl,-s -Wl,--disable-new-dtags -Wl,-rpath=\'$${ORIGIN}/../../vendor/lib\''
             ]
           }]
         ]
@@ -204,10 +216,22 @@
           ['OS == "win"', {
             'msvs_settings': {
               'VCCLCompilerTool': {
-                'ExceptionHandling': 1
+                'ExceptionHandling': 1,
+                'WholeProgramOptimization': 'true'
+              },
+              'VCLibrarianTool': {
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL'
+                ]
               },
               'VCLinkerTool': {
-                'ImageHasSafeExceptionHandlers': 'false'
+                'ImageHasSafeExceptionHandlers': 'false',
+                'OptimizeReferences': 2,
+                'EnableCOMDATFolding': 2,
+                'LinkIncremental': 1,
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL'
+                ]
               }
             },
             'msvs_disabled_warnings': [