From d3583ba9c23daebe7ebbb489e379ce8eca7d4d13 Mon Sep 17 00:00:00 2001
From: Michal Klocek <michal.klocek@qt.io>
Date: Wed, 31 Aug 2022 19:28:42 +0200
Subject: Copy gn in case for crossbuild

In case of non prefix builds gn should be copied so
it can be detected by cross-build from host qt.

Change-Id: I02937fc7101c249b22cfa06275c508410f888248
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Doris Verria <doris.verria@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
(cherry picked from commit 84eaa29b881d25f1b7588187b5b74a9da133d430)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/CMakeLists.txt | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e7600542e..0cbb9cfd6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -191,5 +191,22 @@ if((LINUX OR MACOS) AND INSTALL_GN)
         CONFIGURATIONS ${installConfig}
         RUNTIME DESTINATION "${INSTALL_LIBEXECDIR}"
     )
+    if(NOT QT_WILL_INSTALL)
+        add_custom_target(copy-gn ALL DEPENDS
+            ${QT_BUILD_DIR}/${INSTALL_LIBEXECDIR}/gn
+        )
+        if(Gn_FOUND)
+            set(copyDep ${installDir/bin/gn})
+        else()
+            set(copyDep gn)
+        endif()
+        add_custom_command(
+            OUTPUT ${QT_BUILD_DIR}/${INSTALL_LIBEXECDIR}/gn
+            COMMAND ${CMAKE_COMMAND} -E copy ${installDir}/bin/gn
+            ${QT_BUILD_DIR}/${INSTALL_LIBEXECDIR}
+            DEPENDS ${copyDep}
+            USES_TERMINAL
+        )
+    endif()
 endif()
 
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