1 files changed, 18 insertions, 0 deletions
diff --git a/cmake/QtCopyFileIfDifferent.cmake b/cmake/QtCopyFileIfDifferent.cmake
new file mode 100644
index 0000000000..a27221ece8
--- /dev/null
+++ b/cmake/QtCopyFileIfDifferent.cmake
@@ -0,0 +1,18 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+# copy_if_different works incorrect in Windows if file size if bigger than 2GB.
+# See https://gitlab.kitware.com/cmake/cmake/-/issues/23052 and QTBUG-99491 for details.
+
+cmake_minimum_required(VERSION 3.16)
+
+set(copy_strategy "copy_if_different")
+if(CMAKE_HOST_WIN32)
+    file(SIZE "${SRC_FILE_PATH}" size)
+    # If file size is bigger than 2GB copy it unconditionally
+    if(size GREATER_EQUAL 2147483648)
+        set(copy_strategy "copy")
+    endif()
+endif()
+
+execute_process(COMMAND ${CMAKE_COMMAND} -E ${copy_strategy} "${SRC_FILE_PATH}" "${DST_FILE_PATH}")