From 413c73b78196ad4fc5142e5cbe3770cfdd4f2157 Mon Sep 17 00:00:00 2001
From: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Date: Sun, 27 Feb 2022 12:51:30 +0100
Subject: [PATCH] fix build without QmlPrivate

Change-Id: Ibc333a07137b7afb39676d4d3bc89d0c4dadb11d
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
---
 src/plugins/qmlpreview/CMakeLists.txt | 36 ++++++++++++++-------------
 1 file changed, 19 insertions(+), 17 deletions(-)

diff --git a/src/plugins/qmlpreview/CMakeLists.txt b/src/plugins/qmlpreview/CMakeLists.txt
index 532dd8999f2..4b537c4cf97 100644
--- a/src/plugins/qmlpreview/CMakeLists.txt
+++ b/src/plugins/qmlpreview/CMakeLists.txt
@@ -21,20 +21,22 @@ extend_qtc_plugin(QmlPreview
     tests/qmlpreviewplugin_test.cpp tests/qmlpreviewplugin_test.h
 )
 
-# check if Qt version have_qml_debug_translation_protocol
-# will be introduced in Qt 6.2, but there are users
-# who needs it in older but special built Qt versions aswell
-string(REGEX MATCH "^[0-9]*" QT_VERSION_MAJOR ${Qt5_VERSION})
-get_target_property(qmldebugprivate_include_directories
-                    Qt${QT_VERSION_MAJOR}::QmlPrivate
-                    INTERFACE_INCLUDE_DIRECTORIES
-)
-find_file(have_qml_debug_translation_protocol
-  NAMES private/qqmldebugtranslationprotocol_p.h
-  PATHS ${qmldebugprivate_include_directories}
-)
-extend_qtc_plugin(QmlPreview
-  CONDITION have_qml_debug_translation_protocol
-  PUBLIC_DEPENDS Qt5::QmlPrivate
-  PUBLIC_DEFINES "FOUND_QML_DEBUG_TRANSLATION_PROTOCOL"
-)
+if(TARGET Qt${QT_VERSION_MAJOR}::QmlPrivate)
+  # check if Qt version have_qml_debug_translation_protocol
+  # will be introduced in Qt 6.2, but there are users
+  # who needs it in older but special built Qt versions aswell
+  string(REGEX MATCH "^[0-9]*" QT_VERSION_MAJOR ${Qt5_VERSION})
+  get_target_property(qmldebugprivate_include_directories
+                      Qt${QT_VERSION_MAJOR}::QmlPrivate
+                      INTERFACE_INCLUDE_DIRECTORIES
+  )
+  find_file(have_qml_debug_translation_protocol
+    NAMES private/qqmldebugtranslationprotocol_p.h
+    PATHS ${qmldebugprivate_include_directories}
+  )
+  extend_qtc_plugin(QmlPreview
+    CONDITION have_qml_debug_translation_protocol
+    PUBLIC_DEPENDS Qt5::QmlPrivate
+    PUBLIC_DEFINES "FOUND_QML_DEBUG_TRANSLATION_PROTOCOL"
+  )
+endif()