cmake: Bump minimum required CMake version to 3.5
[quassel.git] / CMakeLists.txt
index 1a22fac..542d362 100644 (file)
@@ -6,33 +6,60 @@
 # General setup
 #####################################################################
 
-project(QuasselIRC)
+cmake_minimum_required(VERSION 3.5)
 
 # Versions
 set(QUASSEL_MAJOR  0)
 set(QUASSEL_MINOR 13)
-set(QUASSEL_PATCH  0)
-set(QUASSEL_VERSION_STRING "0.13-pre")
+set(QUASSEL_PATCH 50)
+set(QUASSEL_VERSION_STRING "0.14-pre")
 
-# We want to know CMake's version for debug reasons
+# Build type
+if (CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_CONFIGURATION_TYPES Release RelWithDebInfo Debug Debugfull Profile)
+    set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING "These are the configuration types we support" FORCE)
+endif()
+
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "Choose the type of build, options are: Release RelWithDebInfo Debug Debugfull Profile None" FORCE)
+endif()
+
+# Output CMake and Quassel versions as well as build type for debug reasons
+message(STATUS "Building Quassel ${QUASSEL_VERSION_STRING}...")
 message(STATUS "Using CMake ${CMAKE_VERSION}")
+message(STATUS "CMake build type: ${CMAKE_BUILD_TYPE}")
+
+# Support ccache if found
+# This should happen before calling project(), so compiler settings are validated.
+option(USE_CCACHE "Enable support for ccache if available" ON)
+if (USE_CCACHE)
+    message(STATUS "Checking for ccache")
+    find_program(CCACHE_PROGRAM ccache)
+    if (CCACHE_PROGRAM)
+        set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
+        message(STATUS "Checking for ccache - enabled")
+    else()
+        message(STATUS "Checking for ccache - not found")
+    endif()
+endif()
 
-# Tell CMake about or own modules
-set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
+# Set up project
+project(Quassel CXX)
 
 # General conveniences
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
-# Include various CMake modules...
+# Include various CMake modules
 include(CMakePushCheckState)
 include(CheckFunctionExists)
-include(CheckIncludeFile)
+include(CheckIncludeFileCXX)
 include(CheckCXXSourceCompiles)
 include(CMakeDependentOption)
 include(FeatureSummary)
 
-# ... and our own stuff
+# Tell CMake about or own modules
+set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 include(QuasselCompileSettings)
 include(QuasselMacros)
 
@@ -40,16 +67,6 @@ include(QuasselMacros)
 # Options and variables that can be set on the command line
 #####################################################################
 
-# First, choose a Qt version. We support USE_QT4 and USE_QT5; if neither is set, prefer Qt4 for now
-option(USE_QT5 "Enable support for Qt5 (disables KDE integration)" OFF)
-if (USE_QT4) # takes precedence
-    set(USE_QT5 OFF)
-else()
-    if (NOT USE_QT5)
-        set(USE_QT4 ON)
-    endif()
-endif()
-
 # Select the binaries to build
 option(WANT_CORE     "Build the core (server) binary"           ON)
 option(WANT_QTCLIENT "Build the client-only binary"             ON)
@@ -58,32 +75,40 @@ add_feature_info(WANT_CORE WANT_CORE "Build the core (server) binary")
 add_feature_info(WANT_QTCLIENT WANT_QTCLIENT "Build the client-only binary (requires a core to connect to)")
 add_feature_info(WANT_MONO WANT_MONO "Build the monolithic (all-in-one) binary")
 
-# Whether to enable KDE integration (work in progress for Qt5 / KDE Frameworks)
-# Note that when building with Qt5, WITH_KDE enables integration with higher-tier KDE frameworks that
-# require runtime support. We still optionally make use of certain Tier 1 frameworks even if WITH_KDE
-# is disabled.
-if (USE_QT4)
-    option(WITH_KDE "KDE4 integration" OFF)
-    add_feature_info(WITH_KDE WITH_KDE "Enable KDE4 integration")
-else()
-    option(WITH_KDE "Integration with the KDE Frameworks runtime environment")
-    add_feature_info(WITH_KDE WITH_KDE "Integrate with the KDE Frameworks runtime environment")
-endif()
+# Whether to enable integration with higher-tier KDE frameworks that require runtime support.
+# We still optionally make use of certain Tier 1 frameworks even if WITH_KDE is disabled.
+option(WITH_KDE "Integration with the KDE Frameworks runtime environment")
+add_feature_info(WITH_KDE WITH_KDE "Integrate with the KDE Frameworks runtime environment")
+
+# Icon theme support. By default, install the Breeze icon theme (may be disabled if a system installation is present)
+option(WITH_BUNDLED_ICONS "Install required icons from the Breeze icon theme" ON)
+add_feature_info(WITH_BUNDLED_ICONS WITH_BUNDLED_ICONS "Install required icons from the Breeze icon theme")
+
+option(WITH_OXYGEN_ICONS "Support the Oxygen icon theme (KDE4)" OFF)
+add_feature_info(WITH_OXYGEN_ICONS WITH_OXYGEN_ICONS "Support the Oxygen icon theme (KDE4)")
 
-cmake_dependent_option(WITH_OXYGEN "Install Oxygen icon set (usually shipped with KDE)" ON "NOT WITH_KDE" OFF)
-if (NOT WITH_KDE)
-    add_feature_info(WITH_OXYGEN WITH_OXYGEN "Install Oxygen icon set")
+if (WITH_BUNDLED_ICONS)
+    add_definitions(-DWITH_BUNDLED_ICONS)
+endif()
+if (WITH_OXYGEN_ICONS)
+    add_definitions(-DWITH_OXYGEN_ICONS)
 endif()
 
 # For this, the feature info is added after we know if QtWebkit is installed
-option(WITH_WEBKIT "WebKit support (for link previews)" ON)
+option(WITH_WEBKIT "WebKit support (for link previews) (legacy)" OFF)
+
+# For this, the feature info is added after we know if QtWebEngine is installed
+option(WITH_WEBENGINE "WebEngine support (for link previews)" ON)
 
 if (APPLE)
     # Notification Center is only available in > 10.8, which is Darwin v12
-    if (CMAKE_SYSTEM_VERSION VERSION_GREATER "11.9.9")
+    if (NOT CMAKE_SYSTEM_VERSION VERSION_LESS 12)
         option(WITH_NOTIFICATION_CENTER "OS X Notification Center support" ON)
         add_feature_info(WITH_NOTIFICATION_CENTER WITH_NOTIFICATION_CENTER "Use the OS X Notification Center")
     endif()
+    find_library(CARBON_LIBRARY Carbon)
+    mark_as_advanced(CARBON_LIBRARY)
+    link_libraries(${CARBON_LIBRARY})
 endif()
 
 # Always embed on Windows, OSX or for a static build; never embed when enabling KDE integration
@@ -100,9 +125,6 @@ endif()
 # The following options are not for end-user consumption, so don't list them in the feature summary
 cmake_dependent_option(DEPLOY "Add required libs to bundle resources and create a dmg. Note: requires Qt to be built with 10.4u SDK" OFF "APPLE" OFF)
 
-# Handle with care
-set(QT_PATH "" CACHE PATH "Path to a Qt4 installation to use instead of the system Qt (e.g. for static builds)")
-
 # Static builds are not supported and require some manual setup! Don't enable unless you know what you're doing (we don't know either)
 cmake_dependent_option(STATIC      "Enable static building (not supported)" OFF "NOT WITH_KDE" OFF)
 
@@ -116,21 +138,30 @@ if (LINK_EXTRA)
 endif()
 
 
+# List of authenticators and the cmake flags to build them
+# (currently that's just LDAP, but more can be added here).
+####################################################################
+option(WITH_LDAP "Enable LDAP authentication support if present on system" ON)
+
 # Setup CMake
 #####################################################################
 
-if (USE_QT5 AND WITH_KDE)
-    cmake_minimum_required(VERSION 2.8.12)
-else()
-    cmake_minimum_required(VERSION 2.8.9)
-endif()
-
 # Setting COMPILE_DEFINITIONS_<CONFIG> is deprecated since CMake 3.0 in favor of generator expressions.
 # These have existed since CMake 2.8.10; until we depend on that, we have to explicitly enable the old policy.
-if (CMAKE_MAJOR_VERSION GREATER 2)
+if (POLICY CMP0043)
     cmake_policy(SET CMP0043 OLD)
 endif()
 
+# Honor visibility settings for all target types
+if (POLICY CMP0063)
+    cmake_policy(SET CMP0063 NEW)
+endif()
+
+# Don't automoc generated files
+if (POLICY CMP0071)
+    cmake_policy(SET CMP0071 OLD)
+endif()
+
 
 # Simplify later checks
 #####################################################################
@@ -146,58 +177,46 @@ endif()
 # Set up Qt
 #####################################################################
 
-if (USE_QT5)
-    message(STATUS "Building for Qt5...")
-    set(QT_MIN_VERSION "5.2.0")
-    add_definitions(-DHAVE_QT5)
-else()
-    message(STATUS "Building for Qt4...")
-    set(QT_MIN_VERSION "4.8.0")
-
-    # Select a Qt installation here, if you don't want to use system Qt
-    if(QT_PATH)
-        # FindQt4 will look for the qmake binary in $PATH, so we just prepend QT_PATH
-        set(ENV{PATH} ${QT_PATH}/bin:$ENV{PATH})
-    endif()
-endif()
-
-
 # Find package dependencies
 #
 # Note that you can forcefully disable optional packages
 # using -DCMAKE_DISABLE_FIND_PACKAGE_<PkgName>=TRUE
 #####################################################################
 
-if (USE_QT5)
-    find_package(Qt5Core ${QT_MIN_VERSION} QUIET)
-    set_package_properties(Qt5Core PROPERTIES TYPE REQUIRED
-        URL "http://qt.digia.com"
-        DESCRIPTION "contains core functionality for Qt"
-    )
-    # find_package without REQUIRED won't check for the version properly; also, older Qt5 versions
-    # used Qt5Core_VERSION_STRING... let's just make sure here that we bail out here if our Qt5 is not new enough.
-    if (NOT Qt5Core_VERSION OR Qt5Core_VERSION VERSION_LESS ${QT_MIN_VERSION})
-        message(FATAL_ERROR "Could NOT find Qt5 >= version ${QT_MIN_VERSION}!")
-    endif()
+set(QT_MIN_VERSION "5.5.0")
+add_definitions(-DHAVE_QT5)
 
-    find_package(Qt5Network QUIET)
-    set_package_properties(Qt5Network PROPERTIES TYPE REQUIRED
-        DESCRIPTION "the network module for Qt5"
-    )
+find_package(Qt5Core ${QT_MIN_VERSION} QUIET)
+set_package_properties(Qt5Core PROPERTIES TYPE REQUIRED
+    URL "https://www.qt.io/"
+    DESCRIPTION "contains core functionality for Qt"
+)
 
-    if (BUILD_GUI)
-        find_package(Qt5Gui QUIET)
-        set_package_properties(Qt5Gui PROPERTIES TYPE REQUIRED
-            DESCRIPTION "the GUI module for Qt5"
-        )
-        find_package(Qt5Widgets QUIET)
-        set_package_properties(Qt5Widgets PROPERTIES TYPE REQUIRED
-            DESCRIPTION "the widgets module for Qt5"
-        )
+# find_package without REQUIRED won't check for the version properly; also, older Qt5 versions
+# used Qt5Core_VERSION_STRING... let's just make sure here that we bail out here if our Qt5 is not new enough.
+if (NOT Qt5Core_VERSION OR Qt5Core_VERSION VERSION_LESS ${QT_MIN_VERSION})
+    message(FATAL_ERROR "Could NOT find Qt5 >= version ${QT_MIN_VERSION}!")
+endif()
+
+find_package(Qt5Network QUIET)
+set_package_properties(Qt5Network PROPERTIES TYPE REQUIRED
+    DESCRIPTION "the network module for Qt5"
+)
 
+if (BUILD_GUI)
+    find_package(Qt5Gui QUIET)
+    set_package_properties(Qt5Gui PROPERTIES TYPE REQUIRED
+        DESCRIPTION "the GUI module for Qt5"
+    )
+    find_package(Qt5Widgets QUIET)
+    set_package_properties(Qt5Widgets PROPERTIES TYPE REQUIRED
+        DESCRIPTION "the widgets module for Qt5"
+    )
+
+    if (NOT WIN32)
         find_package(Qt5DBus QUIET)
         set_package_properties(Qt5DBus PROPERTIES TYPE RECOMMENDED
-            URL "http://qt.digia.com"
+            URL "https://www.qt.io/"
             DESCRIPTION "D-Bus support for Qt5"
             PURPOSE     "Needed for supporting D-Bus-based notifications and tray icon, used by most modern desktop environments"
         )
@@ -209,208 +228,166 @@ if (USE_QT5)
                 PURPOSE     "Required for having a context menu for the D-Bus-based tray icon"
             )
         endif()
+    endif()
 
-        find_package(Phonon4Qt5 QUIET)
-        set_package_properties(Phonon4Qt5 PROPERTIES TYPE RECOMMENDED
-            URL "https://projects.kde.org/projects/kdesupport/phonon"
-            DESCRIPTION "a multimedia abstraction library"
-            PURPOSE     "Required for audio notifications"
-        )
+    find_package(Qt5Multimedia QUIET)
+    set_package_properties(Qt5Multimedia PROPERTIES TYPE RECOMMENDED
+        URL "https://www.qt.io/"
+        DESCRIPTION "Multimedia support for Qt5"
+        PURPOSE     "Required for audio notifications"
+    )
 
-        find_package(LibsnoreQt5 QUIET)
-        set_package_properties(LibsnoreQt5 PROPERTIES TYPE OPTIONAL
-            URL "https://github.com/TheOneRing/Snorenotify"
+    find_package(LibsnoreQt5 0.7.0 QUIET)
+    set_package_properties(LibsnoreQt5 PROPERTIES TYPE OPTIONAL
+        URL "https://projects.kde.org/projects/playground/libs/snorenotify"
+        DESCRIPTION "a cross-platform notification framework"
+        PURPOSE     "Enable support for the snorenotify framework"
+    )
+    if(LibsnoreQt5_FOUND)
+        find_package(LibsnoreSettingsQt5)
+        set_package_properties(LibsnoreSettingsQt5 PROPERTIES TYPE REQUIRED
+            URL "https://projects.kde.org/projects/playground/libs/snorenotify"
             DESCRIPTION "a cross-platform notification framework"
             PURPOSE     "Enable support for the snorenotify framework"
         )
+    endif()
 
-        if (WITH_WEBKIT)
-            find_package(Qt5WebKit QUIET)
-            set_package_properties(Qt5WebKit PROPERTIES TYPE RECOMMENDED
-                URL "http://qt.digia.com"
-                DESCRIPTION "a WebKit implementation for Qt"
+    if (WITH_WEBKIT)
+        find_package(Qt5WebKit QUIET)
+        set_package_properties(Qt5WebKit PROPERTIES TYPE RECOMMENDED
+            URL "https://www.qt.io/"
+            DESCRIPTION "a WebKit implementation for Qt"
+            PURPOSE     "Needed for displaying previews for URLs in chat"
+        )
+        if (Qt5WebKit_FOUND)
+            find_package(Qt5WebKitWidgets QUIET)
+            set_package_properties(Qt5WebKitWidgets PROPERTIES TYPE RECOMMENDED
+                URL "https://www.qt.io/"
+                DESCRIPTION "widgets for Qt's WebKit implementation"
                 PURPOSE     "Needed for displaying previews for URLs in chat"
             )
-            if (Qt5WebKit_FOUND)
-                find_package(Qt5WebKitWidgets QUIET)
-                set_package_properties(Qt5WebKitWidgets PROPERTIES TYPE RECOMMENDED
-                    URL "http://qt.digia.com"
-                    DESCRIPTION "widgets for Qt's WebKit implementation"
-                    PURPOSE     "Needed for displaying previews for URLs in chat"
-                )
-            endif()
         endif()
+    endif()
 
-        if (WITH_WEBKIT AND Qt5WebKitWidgets_FOUND)
-            set(HAVE_WEBKIT true)
+    if (WITH_WEBKIT AND Qt5WebKitWidgets_FOUND)
+        set(HAVE_WEBKIT true)
+    endif()
+    add_feature_info("WITH_WEBKIT, QtWebKit and QtWebKitWidgets modules" HAVE_WEBKIT "Support showing previews for URLs in chat (legacy)")
+
+    if (WITH_WEBENGINE)
+        find_package(Qt5WebEngine QUIET)
+        set_package_properties(Qt5WebEngine PROPERTIES TYPE RECOMMENDED
+            URL "https://www.qt.io/"
+            DESCRIPTION "a WebEngine implementation for Qt"
+            PURPOSE     "Needed for displaying previews for URLs in chat"
+        )
+        if (Qt5WebEngine_FOUND)
+            find_package(Qt5WebEngineWidgets QUIET)
+            set_package_properties(Qt5WebEngineWidgets PROPERTIES TYPE RECOMMENDED
+                URL "https://www.qt.io/"
+                DESCRIPTION "widgets for Qt's WebEngine implementation"
+                PURPOSE     "Needed for displaying previews for URLs in chat"
+            )
         endif()
-        add_feature_info("WITH_WEBKIT, QtWebKit and QtWebKitWidgets modules" HAVE_WEBKIT "Support showing previews for URLs in chat")
+    endif()
 
-        # KDE Frameworks
-        ################
+    if (WITH_WEBENGINE AND Qt5WebEngineWidgets_FOUND)
+        set(HAVE_WEBENGINE true)
+    endif()
+    add_feature_info("WITH_WEBENGINE, QtWebEngine and QtWebEngineWidgets modules" HAVE_WEBENGINE "Support showing previews for URLs in chat")
 
-        if (WITH_KDE)
-            set(ecm_find_type "REQUIRED")
-        else()
-            # Even with KDE integration disabled, we optionally use tier1 frameworks if we find them
-            set(ecm_find_type "RECOMMENDED")
-        endif()
+    # KDE Frameworks
+    ################
 
-        # extra-cmake-modules
-        find_package(ECM NO_MODULE QUIET)
-        set_package_properties(ECM PROPERTIES TYPE ${ecm_find_type}
-            URL "https://projects.kde.org/projects/kdesupport/extra-cmake-modules"
-            DESCRIPTION "extra modules for CMake, maintained by the KDE project"
-            PURPOSE     "Required to find KDE Frameworks components"
-        )
+    if (WITH_KDE)
+        set(ecm_find_type "REQUIRED")
+    else()
+        # Even with KDE integration disabled, we optionally use tier1 frameworks if we find them
+        set(ecm_find_type "RECOMMENDED")
+    endif()
 
-        if (ECM_FOUND)
-            list(APPEND CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
-        endif()
+    # extra-cmake-modules
+    find_package(ECM NO_MODULE QUIET)
+    set_package_properties(ECM PROPERTIES TYPE ${ecm_find_type}
+        URL "https://projects.kde.org/projects/kdesupport/extra-cmake-modules"
+        DESCRIPTION "extra modules for CMake, maintained by the KDE project"
+        PURPOSE     "Required to find KDE Frameworks components"
+    )
 
+    if (ECM_FOUND)
+        list(APPEND CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
         if (WITH_KDE)
-            find_package(KF5 COMPONENTS ConfigWidgets CoreAddons Notifications NotifyConfig TextWidgets WidgetsAddons XmlGui QUIET)
+            find_package(KF5 COMPONENTS ConfigWidgets CoreAddons Notifications NotifyConfig Sonnet TextWidgets WidgetsAddons XmlGui QUIET)
             set_package_properties(KF5 PROPERTIES TYPE REQUIRED
                 URL "http://www.kde.org"
                 DESCRIPTION "KDE Frameworks"
                 PURPOSE     "Required for integration into the Plasma desktop"
             )
-
-        endif()
-
-    endif(BUILD_GUI)
-
-    if (BUILD_CORE)
-        find_package(Qt5Script QUIET)
-        set_package_properties(Qt5Script PROPERTIES TYPE REQUIRED
-            DESCRIPTION "provides scripting support for Qt5"
-        )
-        find_package(Qt5Sql QUIET)
-        set_package_properties(Qt5Sql PROPERTIES TYPE REQUIRED
-            DESCRIPTION "the database support module for Qt5"
-        )
-
-        find_package(QCA2-QT5)
-        set_package_properties(QCA2-QT5 PROPERTIES TYPE RECOMMENDED
-            URL "https://projects.kde.org/projects/kdesupport/qca"
-            DESCRIPTION "Qt Cryptographic Architecture"
-            PURPOSE "Required for encryption support"
-        )
-
-    endif(BUILD_CORE)
-
-    find_package(Qt5LinguistTools QUIET)
-    set_package_properties(Qt5LinguistTools PROPERTIES TYPE RECOMMENDED
-                           DESCRIPTION "contains tools for handling translation files"
-                           PURPOSE "Required for having translations"
-    )
-
-    # Some Qt5 versions do not define a target for lconvert, so we need to find it ourselves
-    if (Qt5LinguistTools_FOUND)
-        if (NOT TARGET Qt5::lconvert AND TARGET Qt5::lrelease)
-            get_target_property(_lrelease_location Qt5::lrelease LOCATION)
-            get_filename_component(_lrelease_path ${_lrelease_location} PATH)
-            find_program(QT_LCONVERT_EXECUTABLE NAMES lconvert-qt5 lconvert PATHS ${_lrelease_path} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
-        elseif(TARGET Qt5::lconvert AND NOT Qt5_LCONVERT_EXECUTABLE)
-            # Newer Qt5 versions define the target, but not the Qt5_LCONVERT_EXECUTABLE variable for some reason
-            get_target_property(QT_LCONVERT_EXECUTABLE Qt5::lconvert LOCATION)
-        endif()
-
-        # Compatibility with the Qt4 variables
-        set(QT_LRELEASE_EXECUTABLE ${Qt5_LRELEASE_EXECUTABLE})
-        set(QT_LUPDATE_EXECUTABLE ${Qt5_LUPDATE_EXECUTABLE})
-        if (Qt5_LCONVERT_EXECUTABLE)
-            set(QT_LCONVERT_EXECUTABLE ${Qt5_LCONVERT_EXECUTABLE})
-        endif()
-    endif()
-
-else(USE_QT5)
-    find_package(Qt4 ${QT_MIN_VERSION} QUIET REQUIRED)
-
-    if (BUILD_GUI)
-        add_feature_info("QtDBus module" QT_QTDBUS_FOUND "Needed for supporting D-Bus-based notifications and tray icon, used by most modern desktop environments")
-        if (QT_QTDBUS_FOUND)
-            find_package(dbusmenu-qt QUIET CONFIG)
-            set_package_properties(dbusmenu-qt PROPERTIES TYPE RECOMMENDED
-                URL "https://launchpad.net/libdbusmenu-qt"
-                DESCRIPTION "a library implementing the DBusMenu specification"
-                PURPOSE     "Required for having a context menu for the D-Bus-based tray icon"
+        else()
+            find_package(KF5Sonnet QUIET)
+            set_package_properties(KF5Sonnet PROPERTIES TYPE RECOMMENDED
+                URL "http://api.kde.org/frameworks-api/frameworks5-apidocs/sonnet/html"
+                DESCRIPTION "framework for providing spell-checking capabilities"
+                PURPOSE "Enables spell-checking support in input widgets"
             )
         endif()
+    endif()
 
-        if (WITH_WEBKIT AND QT_QTWEBKIT_FOUND)
-            set(HAVE_WEBKIT true)
-        endif()
-        add_feature_info("WITH_WEBKIT and QtWebKit module" HAVE_WEBKIT "Support showing previews for URLs in chat")
-
-        if (WITH_KDE)
-            # KDE has overzealous CFLAGS making miniz not compile, so save our old flags
-            set(_cflags ${CMAKE_C_FLAGS})
-            find_package(KDE4 4.4 QUIET)
-            set_package_properties(KDE4 PROPERTIES TYPE REQUIRED
-                URL "http://www.kde.org"
-                DESCRIPTION "a world-class desktop environment"
-                PURPOSE "Enables various bits for improving integration with KDE"
-            )
-            set(CMAKE_C_FLAGS ${_cflags})
-
-        else(WITH_KDE)
-            find_package(Phonon QUIET)
-            set_package_properties(Phonon PROPERTIES TYPE RECOMMENDED
-                URL "https://projects.kde.org/projects/kdesupport/phonon"
-                DESCRIPTION "a multimedia abstraction library"
-                PURPOSE     "Required for audio notifications"
-            )
-
-            find_package(Libsnore QUIET)
-            set_package_properties(Libsnore PROPERTIES TYPE OPTIONAL
-                URL "https://github.com/TheOneRing/Snorenotify"
-                DESCRIPTION "a cross-platform notification framework"
-                PURPOSE     "Enable support for the snorenotify framework"
-            )
-        endif(WITH_KDE)
-
-        find_package(IndicateQt QUIET)
-        set_package_properties(IndicateQt PROPERTIES TYPE OPTIONAL
-            URL "https://launchpad.net/libindicate-qt/"
-            DESCRIPTION "a library to raise flags on DBus for other components of the desktop to pick up and visualize"
-            PURPOSE     "Provides integration into the Ayatana notification system used by e.g. Ubuntu"
-        )
+endif()
 
-    endif(BUILD_GUI)
+if (BUILD_CORE)
+    find_package(Qt5Script QUIET)
+    set_package_properties(Qt5Script PROPERTIES TYPE REQUIRED
+        DESCRIPTION "provides scripting support for Qt5"
+    )
+    find_package(Qt5Sql QUIET)
+    set_package_properties(Qt5Sql PROPERTIES TYPE REQUIRED
+        DESCRIPTION "the database support module for Qt5"
+    )
 
-    if (BUILD_CORE)
+    find_package(QCA2-QT5)
+    set_package_properties(QCA2-QT5 PROPERTIES TYPE RECOMMENDED
+        URL "https://projects.kde.org/projects/kdesupport/qca"
+        DESCRIPTION "Qt Cryptographic Architecture"
+        PURPOSE "Required for encryption support"
+    )
 
-        find_package(QCA2 QUIET)
-        set_package_properties(QCA2 PROPERTIES TYPE RECOMMENDED
-            URL "https://projects.kde.org/projects/kdesupport/qca"
-            DESCRIPTION "Qt Cryptographic Architecture"
-            PURPOSE     "Required for encryption support"
-        )
+endif()
 
+find_package(Qt5LinguistTools QUIET)
+set_package_properties(Qt5LinguistTools PROPERTIES TYPE RECOMMENDED
+    DESCRIPTION "contains tools for handling translation files"
+    PURPOSE "Required for having translations"
+)
 
+# Some Qt5 versions do not define a target for lconvert, so we need to find it ourselves
+if (Qt5LinguistTools_FOUND)
+    if (NOT TARGET Qt5::lconvert AND TARGET Qt5::lrelease)
+        get_target_property(_lrelease_location Qt5::lrelease LOCATION)
+        get_filename_component(_lrelease_path ${_lrelease_location} PATH)
+        find_program(QT_LCONVERT_EXECUTABLE NAMES lconvert-qt5 lconvert PATHS ${_lrelease_path} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
+    elseif(TARGET Qt5::lconvert AND NOT Qt5_LCONVERT_EXECUTABLE)
+        # Newer Qt5 versions define the target, but not the Qt5_LCONVERT_EXECUTABLE variable for some reason
+        get_target_property(QT_LCONVERT_EXECUTABLE Qt5::lconvert LOCATION)
     endif()
 
-    # Qt4 does not consider lconvert relevant, so they don't support finding it...
-    # Rather than shipping hacked buildsys files, let's just infer the path from lrelease
-    if (QT_LRELEASE_EXECUTABLE)
-        get_filename_component(_lrelease_path ${QT_LRELEASE_EXECUTABLE} PATH)
-        find_program(QT_LCONVERT_EXECUTABLE NAMES lconvert-qt4 lconvert PATHS ${_lrelease_path} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
+    # Compatibility with the Qt4 variables
+    set(QT_LRELEASE_EXECUTABLE ${Qt5_LRELEASE_EXECUTABLE})
+    set(QT_LUPDATE_EXECUTABLE ${Qt5_LUPDATE_EXECUTABLE})
+    if (Qt5_LCONVERT_EXECUTABLE)
+        set(QT_LCONVERT_EXECUTABLE ${Qt5_LCONVERT_EXECUTABLE})
     endif()
 endif()
 
-
 # Non-Qt-based packages
 
-# zlib for compression, however we can always fall back to miniz
-find_package(ZLIB QUIET)
-set_package_properties(ZLIB PROPERTIES TYPE RECOMMENDED
+find_package(ZLIB REQUIRED)
+set_package_properties(ZLIB PROPERTIES TYPE REQUIRED
     URL "http://www.zlib.net"
     DESCRIPTION "a popular compression library"
-    PURPOSE     "Use the most common library for protocol compression, instead of the bundled miniz implementation"
+    PURPOSE     "Used for protocol compression"
 )
 
-
 if (NOT WIN32)
     # Execinfo is needed for generating backtraces
     find_package(ExecInfo QUIET)
@@ -420,17 +397,37 @@ if (NOT WIN32)
     )
 endif()
 
+# Check for SSL support in Qt
+# As there's no easy way to get Qt's configuration in particular for Qt5, let's just compile
+# a small test program checking the defines. This works for both Qt4 and Qt5.
+cmake_push_check_state(RESET)
+set(CMAKE_REQUIRED_INCLUDES ${QT_INCLUDES} ${Qt5Core_INCLUDE_DIRS})
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Core_EXECUTABLE_COMPILE_FLAGS}")
+
+if (Qt5_POSITION_INDEPENDENT_CODE)
+    set(CMAKE_REQUIRED_FLAGS "-fPIC -DQT_NO_VERSION_TAGGING")
+endif()
+
+check_cxx_source_compiles("
+    #include \"qglobal.h\"
+    #if defined QT_NO_SSL
+    #  error \"No SSL support\"
+    #endif
+    int main() {}"
+    HAVE_SSL)
+cmake_pop_check_state()
 
 # Additional compile settings
 #####################################################################
 
 # This sets -fPIC and friends if required by the installed Qt5 library
-if (USE_QT5 AND Qt5_POSITION_INDEPENDENT_CODE)
+if (Qt5_POSITION_INDEPENDENT_CODE)
     set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+    set(CMAKE_REQUIRED_FLAGS "-DQT_NO_VERSION_TAGGING")
 endif()
 
 # Needed to compile with mingw without kde
-if (MINGW AND NOT KDE4_FOUND)
+if (MINGW AND NOT WITH_KDE)
     add_definitions(-D_WIN32_WINNT=0x0500)
     message(STATUS "Added _WIN32_WINNT=0x0500 definition for MinGW")
     # workaround for bug in mingw gcc 4.0
@@ -442,23 +439,28 @@ if (CMAKE_COMPILER_IS_GNUCXX)
     string(REPLACE "-ansi" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
 endif()
 
+# Setup LDAP Authentication support.
+#####################################################################
+if (WITH_LDAP)
+    find_package(Ldap)
+    if (LDAP_FOUND)
+        message(STATUS "Enabling LDAP authentication support")
+        set(HAVE_LDAP true)
+        add_definitions(-DHAVE_LDAP)
+    else()
+        message(STATUS "Disabling LDAP authentication support")
+    endif()
+else()
+    message(STATUS "Not enabling LDAP authentication support")
+endif()
 
-# Setup KDE / KDE Frameworks
+# Setup support for KDE Frameworks
 #####################################################################
 
 # We want to do this up here, so we have the necessary variables and defines set before
 # compiling anything
 
-if (KDE4_FOUND)
-    # We always use external icons for KDE4 support, since we use its iconloader rather than Qt's
-    set(EMBED_DATA OFF)
-
-    # Better have the compile flags global, even for the core, to avoid problems with linking the mono client
-    add_definitions(-DHAVE_KDE -DHAVE_KDE4 ${KDE4_DEFINITIONS})
-    set(WITH_KDE4 TRUE)
-endif()
-
-if (USE_QT5 AND WITH_KDE)
+if (WITH_KDE)
     # If KDE Frameworks are present, they're most probably providing Qt5 integration including icon loading
     set(EMBED_DATA OFF)
 
@@ -466,6 +468,7 @@ if (USE_QT5 AND WITH_KDE)
     include(KDECompilerSettings)
     include(KDECMakeSettings)
 
+    kde_enable_exceptions()
     add_definitions(-DHAVE_KDE -DHAVE_KF5)
     set(WITH_KF5 TRUE)
 endif()
@@ -476,27 +479,6 @@ include(QuasselInstallDirs)
 # Various config-dependent checks and settings
 #####################################################################
 
-if (NOT ZLIB_FOUND)
-    message(STATUS "zlib NOT found, using bundled miniz for compression")
-    if (${CMAKE_SIZEOF_VOID_P} EQUAL 4)
-        message(STATUS "WARNING: This may be slow on 32 bit systems!")
-    endif()
-endif()
-
-# Check for SSL support in Qt
-# As there's no easy way to get Qt's configuration in particular for Qt5, let's just compile
-# a small test program checking the defines. This works for both Qt4 and Qt5.
-cmake_push_check_state(RESET)
-set(CMAKE_REQUIRED_INCLUDES ${QT_INCLUDES} ${Qt5Core_INCLUDE_DIRS})
-check_cxx_source_compiles("
-    #include \"qglobal.h\"
-    #if defined QT_NO_OPENSSL || defined QT_NO_SSL
-    #  error \"No SSL support\"
-    #endif
-    int main() {}"
-    HAVE_SSL)
-cmake_pop_check_state()
-
 if (HAVE_SSL)
     add_definitions(-DHAVE_SSL)
 endif()
@@ -504,7 +486,7 @@ add_feature_info("SSL support in Qt" HAVE_SSL "Use secure network connections")
 
 # Check for syslog support
 if (NOT WIN32)
-    check_include_file(syslog.h HAVE_SYSLOG)
+    check_include_file_cxx(syslog.h HAVE_SYSLOG)
     add_feature_info("syslog.h" HAVE_SYSLOG "Provide support for logging to the syslog")
 endif()
 
@@ -516,15 +498,11 @@ else()
     message(STATUS "Installing data files separately")
 endif()
 
-if (INDICATEQT_FOUND)
-    add_definitions(-DXDG_APPS_INSTALL_DIR=${CMAKE_INSTALL_APPDIR})
-endif()
-
 if (NOT WIN32)
     check_function_exists(umask HAVE_UMASK)
     if(HAVE_UMASK)
         add_definitions(-DHAVE_UMASK)
-    endif(HAVE_UMASK)
+    endif()
 endif()
 
 
@@ -539,9 +517,7 @@ if (WIN32)
         set(CMAKE_EXE_LINKER_FLAGS_DEBUG "/debug /INCREMENTAL:YES /NODEFAULTLIB:libcmt")
         set(CMAKE_EXE_LINKER_FLAGS_DEBUGFULL "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
         link_libraries(Version dwmapi shlwapi)
-        if (USE_QT5)
-            set(QT_QTMAIN_LIBRARY Qt5::WinMain)
-        endif()
+        set(QT_QTMAIN_LIBRARY Qt5::WinMain)
     endif()
     if(HAVE_SSL AND STATIC)
         find_package(OpenSSL REQUIRED)
@@ -570,12 +546,22 @@ include(GetGitRevisionDescription)
 get_git_head_revision(GIT_REFSPEC GIT_HEAD)
 git_describe(GIT_DESCRIBE --long)
 
+# If in a Git repo we can get the commit-date from a git command
+if (GIT_HEAD)
+    execute_process(
+        COMMAND git -c log.showsignature=false show -s --format=%ct
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_COMMIT_DATE
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+endif()
+
 # If not in a Git repo try to read GIT_HEAD and GIT_DESCRIBE from
 # enviroment
 if (NOT GIT_HEAD OR NOT GIT_DESCRIBE)
   if (DEFINED ENV{GIT_HEAD})
       set(GIT_HEAD $ENV{GIT_HEAD})
-  endif ()
+  endif()
   if (DEFINED ENV{GIT_DESCRIBE})
      set(GIT_DESCRIBE $ENV{GIT_DESCRIBE})
   endif()
@@ -585,6 +571,7 @@ endif()
 if (NOT GIT_HEAD OR NOT GIT_DESCRIBE)
     set(GIT_HEAD "")
     set(GIT_DESCRIBE "")
+    set(GIT_COMMIT_DATE 0)
 endif()
 
 configure_file(version.h.in ${CMAKE_BINARY_DIR}/version.h @ONLY)