From e182addcf66ffd15bbd5b355b2b981972d9216ef Mon Sep 17 00:00:00 2001
From: Frank Zingsheim <zingsheim@users.noreply.github.com>
Date: Mon, 7 Aug 2017 23:49:47 +0200
Subject: [PATCH] CMake: Upgrade Qt4 to Qt5 (#935)

---
 CMakeLists.txt               |  2 +-
 cmake/findDependencies.cmake |  4 +++-
 gui/CMakeLists.txt           | 10 ++++------
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 215993bcf..148f9943e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 project(CppCheck)
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 2.8.4)
 
 include(GNUInstallDirs)
 
diff --git a/cmake/findDependencies.cmake b/cmake/findDependencies.cmake
index 60853a338..05a13c92e 100644
--- a/cmake/findDependencies.cmake
+++ b/cmake/findDependencies.cmake
@@ -1,4 +1,6 @@
-find_package(Qt4 4.6.1 COMPONENTS QtCore QtGui QtXML)
+set(GUI_QT_COMPONENTS Core Gui Widgets PrintSupport)
+find_package(Qt5 COMPONENTS ${GUI_QT_COMPONENTS})
+find_package(Qt5LinguistTools)
 if (HAVE_RULES)
     find_library(PCRE pcre)
     if (NOT PCRE)
diff --git a/gui/CMakeLists.txt b/gui/CMakeLists.txt
index 3a5f4edab..6d8899ede 100644
--- a/gui/CMakeLists.txt
+++ b/gui/CMakeLists.txt
@@ -1,7 +1,6 @@
 if (BUILD_GUI)
 
     set(CMAKE_AUTOMOC ON)
-    include(${QT_USE_FILE})
     if (${CMAKE_BUILD_TYPE} STREQUAL "Release")
         add_definitions(-DQT_NO_DEBUG)
         add_definitions(-DQT_NO_DEBUG_OUTPUT)
@@ -17,16 +16,15 @@ if (BUILD_GUI)
     file(GLOB srcs "*.cpp")
     file(GLOB uis  "*.ui")
     file(GLOB tss  "*.ts")
-    QT4_WRAP_UI(uis_hdrs ${uis})
-    QT4_ADD_RESOURCES(resources "gui.qrc")
-    QT4_ADD_TRANSLATION(qms ${tss})
+    QT5_WRAP_UI(uis_hdrs ${uis})
+    QT5_ADD_RESOURCES(resources "gui.qrc")
+    QT5_ADD_TRANSLATION(qms ${tss})
 
     add_executable(cppcheck-gui ${hdrs} ${srcs} ${uis_hdrs} ${resources} ${qms} $<TARGET_OBJECTS:lib_objs> $<TARGET_OBJECTS:tinyxml_objs> $<TARGET_OBJECTS:simplecpp_objs>)
-    target_link_libraries(cppcheck-gui ${QT_LIBRARIES})
     if (HAVE_RULES)
         target_link_libraries(cppcheck-gui pcre)
     endif()
-
+    qt5_use_modules(cppcheck-gui ${GUI_QT_COMPONENTS})
 
     install(TARGETS cppcheck-gui RUNTIME DESTINATION ${CMAKE_INSTALL_FULL_BINDIR} COMPONENT applications)
     install(FILES ${qms} DESTINATION ${CMAKE_INSTALL_FULL_BINDIR} COMPONENT applications)