From 3442865360b18b757aee718de585c31e28c457ce Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Tue, 5 Jul 2022 11:59:57 +0200
Subject: build: Use Link Time Optimization for Qt code on Linux

See: https://www.qt.io/blog/2019/01/02/qt-applications-lto
---
 depends/packages/qt.mk | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'depends/packages/qt.mk')

diff --git a/depends/packages/qt.mk b/depends/packages/qt.mk
index 7e268fe9a5..d46ca9ff9c 100644
--- a/depends/packages/qt.mk
+++ b/depends/packages/qt.mk
@@ -152,6 +152,9 @@ $(package)_config_opts_linux += -fontconfig
 $(package)_config_opts_linux += -no-opengl
 $(package)_config_opts_linux += -no-feature-vulkan
 $(package)_config_opts_linux += -dbus-runtime
+ifneq ($(LTO),)
+$(package)_config_opts_linux += -ltcg
+endif
 $(package)_config_opts_arm_linux += -platform linux-g++ -xplatform bitcoin-linux-g++
 $(package)_config_opts_i686_linux  = -xplatform linux-g++-32
 ifneq (,$(findstring -stdlib=libc++,$($(1)_cxx)))
-- 
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