From 8687d6cb7a838ce619ca6aca97507cbaf5e3ce9c Mon Sep 17 00:00:00 2001
From: "Friedrich W. H. Kossebau" <kossebau@kde.org>
Date: Mon, 13 Jun 2022 14:46:04 +0200
Subject: ECMAddQch: let doxygen update the config file instead of "outdated"
 warnings

---
 modules/ECMAddQch.cmake | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'modules/ECMAddQch.cmake')

diff --git a/modules/ECMAddQch.cmake b/modules/ECMAddQch.cmake
index e95003fa..fefe9c07 100644
--- a/modules/ECMAddQch.cmake
+++ b/modules/ECMAddQch.cmake
@@ -614,6 +614,17 @@ function(ecm_add_qch target_name)
             "${_doxygenconfig_file}"
             @ONLY
         )
+        # Doxygen warns verbosely about outdated config entries.
+        # To spare custom code here to generate configuration with no out-dated entries,
+        # instead make use of the doxygen feature to update configuration files.
+        execute_process(
+            COMMAND ${DOXYGEN_EXECUTABLE} -u "${_doxygenconfig_file}"
+            ERROR_VARIABLE _doxygen_update_error
+            RESULT_VARIABLE _doxygen_update_result
+        )
+        if(NOT ${_doxygen_update_result} STREQUAL "0")
+            message(WARNING "Updating the doxygen config file failed: ${_doxygen_update_error}")
+        endif()
 
         # setup make target
         set(_qch_INSTALLPATH ${ARGS_QCH_INSTALL_DESTINATION})
-- 
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