From 0441935fcbadf843257bcabd0584dcfadccd82c0 Mon Sep 17 00:00:00 2001
From: Joerg Bornemann <joerg.bornemann@qt.io>
Date: Tue, 2 Jun 2026 12:52:15 +0200
Subject: [PATCH] configure: Sanitize -submodules arguments

Allow (and ignore) leading, trailing, and repeated commas in the
-submodules argument.

Fixes: QTBUG-147198
Change-Id: I8901a65c6754c58ea3d51cb715932e7b328af445
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
(cherry picked from commit d6ac43b43338c1bde122a13ad242b6a748e106f9)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit f1698cf6463d549b6e7628eda92a1bed127261c2)
---
 cmake/QtIRHelpers.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cmake/QtIRHelpers.cmake b/cmake/QtIRHelpers.cmake
index 6df58b7f..ea929374 100644
--- a/cmake/QtIRHelpers.cmake
+++ b/cmake/QtIRHelpers.cmake
@@ -142,6 +142,7 @@ function(qt_ir_get_args_from_optfile_configure_filtered optfile_path out_var)
         qt_ir_get_top_level_submodules(include_submodules exclude_submodules)
         if(NOT include_submodules AND arg_ALREADY_INITIALIZED)
             string(REPLACE "," ";" include_submodules "${submodules}")
+            list(FILTER include_submodules EXCLUDE REGEX "^$")
         endif()
 
         # qtrepotools is always implicitly cloned, but it doesn't actually