From ea3289460b6c9a6c4f17af06871936f105514b66 Mon Sep 17 00:00:00 2001
From: Alexey Edelev <alexey.edelev@qt.io>
Date: Thu, 7 Dec 2023 13:54:52 +0100
Subject: [PATCH] Make sure that the result variable is empty in
 _qt_internal_collect_buildsystem_targets

Add the inside-recursion marker to the
_qt_internal_collect_buildsystem_targets function and reset
the result variable only in the top-level function call.

Amends 1c82e92202c8c359872c08095670c121602094b8

Pick-to: 6.5 6.6
Change-Id: I34b1e1edbb8a799900b95f67b80151b372073d2c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
---
 cmake/QtPublicCMakeHelpers.cmake | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cmake/QtPublicCMakeHelpers.cmake b/cmake/QtPublicCMakeHelpers.cmake
index d2af1180a15..a3a6c9d71c9 100644
--- a/cmake/QtPublicCMakeHelpers.cmake
+++ b/cmake/QtPublicCMakeHelpers.cmake
@@ -102,6 +102,11 @@ endfunction()
 function(_qt_internal_collect_buildsystem_targets result dir)
     cmake_parse_arguments(arg "" "" "EXCLUDE;INCLUDE" ${ARGN})
 
+    if(NOT _qt_internal_collect_buildsystem_targets_inner)
+        set(${result} "")
+        set(_qt_internal_collect_buildsystem_targets_inner TRUE)
+    endif()
+
     set(forward_args "")
     if(arg_EXCLUDE)
         set(forward_args APPEND EXCLUDE ${arg_EXCLUDE})