build.sh

#!/usr/bin/env bash

set -euo pipefail

export CC="ccache clang"
export CXX="ccache clang++"
export AR=llvm-ar

./configure --enable-lto --experimental-enable-pointer-compression --fully-static --ninja
ninja -C out/Release -v

node.diff

diff --git a/common.gypi b/common.gypi
index 3e1902fb..59ba0568 100644
--- a/common.gypi
+++ b/common.gypi
@@ -174,9 +174,9 @@
               'MSVC_runtimeType': 2   # MultiThreadedDLL (/MD)
             }],
             ['llvm_version=="0.0"', {
-              'lto': ' -flto=4 -fuse-linker-plugin -ffat-lto-objects ', # GCC
+              'lto': ' -flto=auto -fuse-linker-plugin -fno-fat-lto-objects ', # GCC
             }, {
-              'lto': ' -flto ', # Clang
+              'lto': ' -flto=thin ', # Clang
             }],
           ],
         },
@@ -184,7 +184,7 @@
         'conditions': [
           ['enable_lto=="true"', {
             'cflags': ['<(lto)'],
-            'ldflags': ['<(lto)'],
+            'ldflags': ['<(lto)', '-fuse-ld=lld', '-Wl,--strip-all'],
             'xcode_settings': {
               'LLVM_LTO': 'YES',
             },
diff --git a/deps/cares/configure b/deps/cares/configure
index 2f182e0c..d9e89651 100755
--- a/deps/cares/configure
+++ b/deps/cares/configure
@@ -18815,11 +18815,6 @@ _LT_EOF
 
 
 _lt_libdeps_save_CFLAGS=$CFLAGS
-case "$CC $CFLAGS " in #(
-*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
-*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
-*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
-esac
 
 if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
@@ -37464,6 +37459,3 @@ done
 ## -------------------------------- ##
 ##  End of distclean amending code  ##
 ## -------------------------------- ##
-
-
-
diff --git a/deps/cares/m4/libtool.m4 b/deps/cares/m4/libtool.m4
index e7b68334..13ec17a6 100644
--- a/deps/cares/m4/libtool.m4
+++ b/deps/cares/m4/libtool.m4
@@ -7562,11 +7562,6 @@ _LT_EOF
 ])
 
 _lt_libdeps_save_CFLAGS=$CFLAGS
-case "$CC $CFLAGS " in #(
-*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
-*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
-*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
-esac
 
 dnl Parse the compiler output and extract the necessary
 dnl objects, libraries and library flags.
diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
index f822c056..a6421a5e 100644
--- a/tools/v8_gypfiles/v8.gyp
+++ b/tools/v8_gypfiles/v8.gyp
@@ -1722,9 +1722,6 @@
           '<(V8_ROOT)/src/heap/base/worklist.cc',
         ],
         'conditions': [
-          ['enable_lto=="true"', {
-            'cflags_cc': [ '-fno-lto' ],
-          }],
           ['clang or OS!="win"', {
             'conditions': [
               ['_toolset == "host" and host_arch == "x64" or _toolset == "target" and target_arch=="x64"', {