From 74fbd92f9f4224375050dd18affc33506044ff0c Mon Sep 17 00:00:00 2001
From: Ilya Fedin <fedin-ilja2010@ya.ru>
Date: Mon, 3 Oct 2022 09:00:11 +0400
Subject: [PATCH] Fix target_prepare_qrc when generator expression evaluates
 into nothing

---
 target_prepare_qrc.cmake | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/target_prepare_qrc.cmake b/target_prepare_qrc.cmake
index 99ebcd9..2d29c4e 100644
--- a/target_prepare_qrc.cmake
+++ b/target_prepare_qrc.cmake
@@ -23,13 +23,17 @@ function(target_prepare_qrc target_name)
     else()
         set(rcc_flags --binary "$<TARGET_PROPERTY:${target_name},AUTORCC_OPTIONS>")
 
-        set(qrc_files_all "$<FILTER:$<TARGET_PROPERTY:${target_name},SOURCES>,INCLUDE,\\.qrc$>")
-        if (WIN32)
-            set(qrc_files "$<FILTER:${qrc_files_all},EXCLUDE,(mac|darwin|osx|linux|posix)\\.>")
-        elseif (APPLE)
-            set(qrc_files "$<FILTER:${qrc_files_all},EXCLUDE,(win|linux)\\.>")
-        elseif (LINUX)
-            set(qrc_files "$<FILTER:${qrc_files_all},EXCLUDE,(win|mac|darwin|osx)\\.>")
+        set(qrc_files)
+        get_target_property(list ${target_name} SOURCES)
+        foreach (entry ${list})
+            get_source_file_property(skip_autogen ${entry} SKIP_AUTOGEN)
+            if (NOT ${entry} MATCHES "\\.qrc$" OR skip_autogen)
+                continue()
+            endif()
+            list(APPEND qrc_files ${entry})
+        endforeach()
+        if (NOT qrc_files)
+            return()
         endif()
         set(rcc_file ${target_name}.rcc)
         set(rcc_path "${CMAKE_BINARY_DIR}/${rcc_file}")