From 8a5ffc4f73ef250610836393d0b71b2861a04929 Mon Sep 17 00:00:00 2001
From: Joerg Bornemann <joerg.bornemann@qt.io>
Date: Fri, 17 Apr 2020 08:39:47 +0200
Subject: CMake: Port the 'ltcg' feature

This maps to the CMake variable CMAKE_INTERPROCEDURAL_OPTIMIZATION.

Change-Id: Id0ce48f176b95c27e74ab80276e89503b1660f79
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
---
 configure.cmake | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'configure.cmake')

diff --git a/configure.cmake b/configure.cmake
index 5534f6aafc..f67dd96b6e 100644
--- a/configure.cmake
+++ b/configure.cmake
@@ -509,6 +509,12 @@ qt_feature("precompile_header"
     CONDITION BUILD_WITH_PCH
 )
 qt_feature_config("precompile_header" QMAKE_PRIVATE_CONFIG)
+qt_feature("ltcg"
+    LABEL "Using LTCG"
+    AUTODETECT 1
+    CONDITION CMAKE_INTERPROCEDURAL_OPTIMIZATION
+)
+qt_feature_config("ltcg" QMAKE_PRIVATE_CONFIG)
 qt_feature("reduce_exports" PRIVATE
     LABEL "Reduce amount of exported symbols"
     CONDITION NOT WIN32 AND CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY
-- 
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