Add a flag to enable Qt deprecation warnings on Qt < 5.13
[quassel.git] / CMakeLists.txt
index 42f2ab3..c3acc21 100644 (file)
@@ -6,50 +6,58 @@
 # 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")
+# Tell CMake about or own modules
+set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
+
+include(QuasselVersion)
 
-# We want to know CMake's version for debug reasons
 message(STATUS "Using CMake ${CMAKE_VERSION}")
 
-# Tell CMake about or own modules
-set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
+# Set up build type rather early
+include(BuildType)
+
+# Support ccache if found
+# This should happen before calling project(), so compiler settings are validated.
+option(USE_CCACHE "Enable support for ccache if available" ON)
+if (USE_CCACHE)
+    message(STATUS "Checking for ccache")
+    find_program(CCACHE_PROGRAM ccache)
+    if (CCACHE_PROGRAM)
+        set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
+        message(STATUS "Checking for ccache - enabled")
+    else()
+        message(STATUS "Checking for ccache - not found")
+    endif()
+endif()
 
-# General conveniences
+# Set up project
+project(Quassel CXX)
+
+# Let CMake handle file generation for Qt
 set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+# Needed, otherwise some .moc files won't be found with older CMake versions
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
 # Include various CMake modules...
 include(CMakePushCheckState)
 include(CheckFunctionExists)
-include(CheckIncludeFile)
+include(CheckIncludeFileCXX)
 include(CheckCXXSourceCompiles)
 include(CMakeDependentOption)
 include(FeatureSummary)
 
-# ... and our own stuff
+# ... and our own
 include(QuasselCompileSettings)
 include(QuasselMacros)
 
-
 # Options and variables that can be set on the command line
 #####################################################################
 
-# First, choose a Qt version. We support USE_QT5 and USE_QT4; if neither is set, Qt5 will be used
-option(USE_QT5 "Enable support for Qt5" OFF)
-if (USE_QT5) # takes precedence
-    set(USE_QT4 OFF)
-else()
-    if (NOT USE_QT4)
-        set(USE_QT5 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)
@@ -58,36 +66,17 @@ 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")
 
-cmake_dependent_option(WITH_BREEZE "Install Breeze icon theme (usually shipped with KDE)" ON "NOT WITH_KDE" OFF)
-cmake_dependent_option(WITH_BREEZE_DARK "Install Dark Breeze icon theme (usually shipped with KDE)" OFF "NOT WITH_KDE" OFF)
-cmake_dependent_option(WITH_OXYGEN "Install Oxygen icon theme (usually shipped with KDE)" OFF "NOT WITH_KDE" OFF)
-if (NOT WITH_KDE)
-    add_feature_info(WITH_BREEZE WITH_BREEZE "Install Breeze icon theme")
-    add_feature_info(WITH_BREEZE_DARK WITH_BREEZE_DARK "Install Dark Breeze icon theme")
-    add_feature_info(WITH_OXYGEN WITH_OXYGEN "Install Oxygen icon theme")
-endif()
+# 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")
 
-if (WITH_OXYGEN)
-    add_definitions(-DWITH_OXYGEN)
-endif()
-if (WITH_BREEZE)
-    add_definitions(-DWITH_BREEZE)
-endif()
-if (WITH_BREEZE_DARK)
-    add_definitions(-DWITH_BREEZE_DARK)
-endif()
+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)")
 
 # For this, the feature info is added after we know if QtWebkit is installed
 option(WITH_WEBKIT "WebKit support (for link previews) (legacy)" OFF)
@@ -106,57 +95,52 @@ if (APPLE)
     link_libraries(${CARBON_LIBRARY})
 endif()
 
-# Always embed on Windows, OSX or for a static build; never embed when enabling KDE integration
+# Always embed on Windows or OSX; never embed when enabling KDE integration
 set(EMBED_DEFAULT OFF)
-if (STATIC OR WIN32 OR APPLE)
+if (WIN32 OR APPLE)
     set(EMBED_DEFAULT ON)
 endif()
 cmake_dependent_option(EMBED_DATA "Embed icons and translations into the binaries instead of installing them" ${EMBED_DEFAULT}
-                                   "NOT STATIC;NOT WIN32;NOT WITH_KDE" ${EMBED_DEFAULT})
+                                   "NOT WIN32;NOT WITH_KDE" ${EMBED_DEFAULT})
 if (NOT EMBED_DEFAULT)
     add_feature_info(EMBED_DATA EMBED_DATA "Embed icons and translations in the binaries instead of installing them")
 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)
-
-# 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)
-
-# For static builds, arbitrary extra libs might need to be linked
-# Define a comma-separated list here
-# e.g. for pgsql, we need -DLINK_EXTRA=pq;crypt
-set(LINK_EXTRA "" CACHE STRING "Semicolon-separated list of libraries to be linked")
-if (LINK_EXTRA)
-    string(REPLACE "," ";" LINK_EXTRA ${LINK_EXTRA})
-    link_libraries(${LINK_EXTRA})
+option(FATAL_WARNINGS "Make compile warnings fatal (most useful for CI builds)" OFF)
+option(WARN_QT_DEPRECATION "Warn about deprecated Qt functionality" OFF)
+if (WARN_QT_DEPRECATION)
+    # Enable Qt deprecation warnings for Qt < 5.13 (on by default in newer versions)
+    add_definitions("-DQT_DEPRECATED_WARNINGS")
 endif()
+cmake_dependent_option(DEPLOY "Add required libs to bundle resources and create a dmg" OFF "APPLE" OFF)
 
-
-# LDAP Authentication (and other authentication backends).
+# 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)
+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)
+# Visibility settings apply to all targets
+if (POLICY CMP0063)
+    cmake_policy(SET CMP0063 NEW)
 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 (POLICY CMP0043)
-    cmake_policy(SET CMP0043 OLD)
+# Let automoc/autouic process generated files
+if (POLICY CMP0071)
+    cmake_policy(SET CMP0071 NEW)
 endif()
 
-# Honor visibility settings for all target types
-if (POLICY CMP0063)
-    cmake_policy(SET CMP0063 NEW)
-endif()
+set(BUILD_SHARED_LIBS TRUE CACHE BOOL "" FORCE)
 
+# Don't use X11 on OSX
+if (APPLE)
+    set(CMAKE_DISABLE_FIND_PACKAGE_X11 true)
+    set(CMAKE_DISABLE_FIND_PACKAGE_XCB true)
+    set(CMAKE_DISABLE_FIND_PACKAGE_Qt5X11Extras true)
+endif()
 
 # Simplify later checks
 #####################################################################
@@ -168,7 +152,6 @@ if (WANT_MONO OR WANT_CORE)
     set(BUILD_CORE true)
 endif()
 
-
 # Set up Qt
 #####################################################################
 
@@ -178,100 +161,113 @@ endif()
 # using -DCMAKE_DISABLE_FIND_PACKAGE_<PkgName>=TRUE
 #####################################################################
 
-if (USE_QT5)
-    message(STATUS "Building for Qt5...")
-    set(QT_MIN_VERSION "5.2.0")
-    add_definitions(-DHAVE_QT5)
+set(QT_MIN_VERSION "5.5.0")
 
-    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()
+# Required Qt components
+set(qt_components Core Network)
+if (BUILD_GUI)
+    list(APPEND qt_components Gui Widgets)
+endif()
+if (BUILD_CORE)
+    list(APPEND qt_components Script Sql)
+endif()
 
-    find_package(Qt5Network QUIET)
-    set_package_properties(Qt5Network PROPERTIES TYPE REQUIRED
-        DESCRIPTION "the network module for Qt5"
-    )
+find_package(Qt5 ${QT_MIN_VERSION} REQUIRED COMPONENTS ${qt_components})
+set_package_properties(Qt5 PROPERTIES TYPE REQUIRED
+    URL "https://www.qt.io/"
+    DESCRIPTION "the Qt libraries"
+)
+message(STATUS "Found Qt ${Qt5Core_VERSION}")
 
-    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"
-        )
+# Optional Qt components
 
-        if (NOT WIN32)
-            find_package(Qt5DBus QUIET)
-            set_package_properties(Qt5DBus PROPERTIES TYPE RECOMMENDED
-                URL "http://qt.digia.com"
-                DESCRIPTION "D-Bus support for Qt5"
-                PURPOSE     "Needed for supporting D-Bus-based notifications and tray icon, used by most modern desktop environments"
-            )
-            if (Qt5DBus_FOUND)
-                find_package(dbusmenu-qt5 QUIET CONFIG)
-                set_package_properties(dbusmenu-qt5 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"
-                )
-            endif()
-        endif()
+find_package(Qt5LinguistTools QUIET)
+set_package_properties(Qt5LinguistTools PROPERTIES TYPE RECOMMENDED
+    DESCRIPTION "contains tools for handling translation files"
+    PURPOSE "Required for having translations"
+)
 
-        find_package(Qt5Multimedia QUIET)
-        set_package_properties(Qt5Multimedia PROPERTIES TYPE RECOMMENDED
-            URL "http://qt.digia.com"
-            DESCRIPTION "Multimedia support for Qt5"
-            PURPOSE     "Required for audio notifications"
+if (BUILD_GUI)
+    if (NOT WIN32)
+        find_package(Qt5DBus QUIET)
+        set_package_properties(Qt5DBus PROPERTIES TYPE RECOMMENDED
+            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"
         )
-
-        if (NOT Qt5Multimedia_FOUND)
-            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"
+        if (Qt5DBus_FOUND)
+            find_package(dbusmenu-qt5 QUIET CONFIG)
+            set_package_properties(dbusmenu-qt5 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"
             )
         endif()
+    endif()
+
+    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"
+    )
 
+    # snorenotify segfaults on startup on msys2
+    # we don't check for just MSYS to support the Ninja generator
+    if(NOT (WIN32 AND (NOT $ENV{MSYSTEM} STREQUAL "")))
         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
+        if (LibsnoreQt5_FOUND)
+            find_package(LibsnoreSettingsQt5 QUIET)
+            set_package_properties(LibsnoreSettingsQt5 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"
             )
         endif()
+    endif()
 
+    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()
+    endif()
 
+    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 (NOT HAVE_WEBENGINE)
         if (WITH_WEBKIT)
             find_package(Qt5WebKit QUIET)
-            set_package_properties(Qt5WebKit PROPERTIES TYPE RECOMMENDED
-                URL "http://qt.digia.com"
+            set_package_properties(Qt5WebKit PROPERTIES TYPE OPTIONAL
+                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 "http://qt.digia.com"
+                set_package_properties(Qt5WebKitWidgets PROPERTIES TYPE OPTIONAL
+                    URL "https://www.qt.io/"
                     DESCRIPTION "widgets for Qt's WebKit implementation"
                     PURPOSE     "Needed for displaying previews for URLs in chat"
-                )
+                    )
             endif()
         endif()
 
@@ -279,215 +275,135 @@ if (USE_QT5)
             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 "http://qt.digia.com"
-                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 "http://qt.digia.com"
-                    DESCRIPTION "widgets for Qt's WebEngine implementation"
-                    PURPOSE     "Needed for displaying previews for URLs in chat"
-                )
-            endif()
-        endif()
-
-        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")
-
-        # KDE Frameworks
-        ################
-
-        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()
-
-        # 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)
-                set_package_properties(KF5 PROPERTIES TYPE REQUIRED
-                    URL "http://www.kde.org"
-                    DESCRIPTION "KDE Frameworks"
-                    PURPOSE     "Required for integration into the Plasma desktop"
-                )
-            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()
-
     endif()
 
-    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"
-        )
+    # KDE Frameworks
+    ################
 
+    # extra-cmake-modules
+    if (WITH_KDE)
+        set(ecm_find_type "REQUIRED")
+        find_package(ECM NO_MODULE REQUIRED)
+    else()
+        # Even with KDE integration disabled, we optionally use tier1 frameworks if we find them
+        set(ecm_find_type "RECOMMENDED")
+        find_package(ECM NO_MODULE QUIET)
     endif()
 
-    find_package(Qt5LinguistTools QUIET)
-    set_package_properties(Qt5LinguistTools PROPERTIES TYPE RECOMMENDED
-                           DESCRIPTION "contains tools for handling translation files"
-                           PURPOSE "Required for having translations"
+    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"
     )
 
-    # 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()
-    message(STATUS "Building for Qt4...")
-    set(QT_MIN_VERSION "4.8.0")
-
-    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"
-            )
-        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 (ECM_FOUND)
+        list(APPEND CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
         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
+            find_package(KF5 REQUIRED COMPONENTS ConfigWidgets CoreAddons Notifications NotifyConfig Sonnet TextWidgets WidgetsAddons XmlGui)
+            set_package_properties(KF5 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()
-            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"
+                DESCRIPTION "KDE Frameworks"
+                PURPOSE     "Required for integration into the Plasma desktop"
             )
+            message(STATUS "Found KDE Frameworks ${KF5_VERSION}")
         endif()
 
-        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"
+        # Optional KF5 tier1 components
+        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 (BUILD_CORE)
+if (BUILD_CORE)
+    find_package(Qca-qt5 2.0 QUIET)
+    set_package_properties(Qca-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"
+    if (WITH_LDAP)
+        find_package(Ldap QUIET)
+        set_package_properties(Ldap PROPERTIES TYPE OPTIONAL
+            URL "http://www.openldap.org/"
+            DESCRIPTION "LDAP (Lightweight Directory Access Protocol) libraries"
+            PURPOSE "Enables core user authentication via LDAP"
         )
-
-
-    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)
     endif()
 endif()
 
-
 # Non-Qt-based packages
+#####################################################################
+
+find_package(Boost 1.54 REQUIRED)
+set_package_properties(Boost PROPERTIES TYPE REQUIRED
+    URL "https://www.boost.org/"
+    DESCRIPTION "Boost libraries for C++"
+)
+# Older versions don't define the imported target
+if (NOT TARGET Boost::boost)
+    add_library(Boost::boost INTERFACE IMPORTED GLOBAL)
+    if (Boost_INCLUDE_DIRS)
+        set_target_properties(Boost::boost PROPERTIES
+            INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}")
+    endif()
+endif()
 
-# 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)
-    set_package_properties(ExecInfo PROPERTIES TYPE OPTIONAL
-        DESCRIPTION "a library for inspecting backtraces"
+    # Needed for generating backtraces
+    find_package(Backtrace QUIET)
+    set_package_properties(Backtrace PROPERTIES TYPE RECOMMENDED
+        DESCRIPTION "a header (and possibly library) for inspecting backtraces"
         PURPOSE "Used for generating backtraces in case of a crash"
     )
 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}")
+# Shared library support
+#####################################################################
+
+option(ENABLE_SHARED "Build modules as shared libraries" ON)
+add_feature_info(ENABLE_SHARED ENABLE_SHARED "Build modules as shared libraries")
+
+# Setup unit testing
+#####################################################################
+
+option(BUILD_TESTING "Enable unit tests" OFF)
+add_feature_info(BUILD_TESTING BUILD_TESTING "Build unit tests")
+
+if (BUILD_TESTING)
+    find_package(GTest QUIET)
+    set_package_properties(GTest PROPERTIES TYPE REQUIRED
+        DESCRIPTION "Google's unit testing framework"
+        PURPOSE "Required for building unit tests"
+    )
 
-if (USE_QT5 AND Qt5_POSITION_INDEPENDENT_CODE)
-    set(CMAKE_REQUIRED_FLAGS "-fPIC -DQT_NO_VERSION_TAGGING")
+    find_package(Qt5Test QUIET)
+    set_package_properties(Qt5Test PROPERTIES TYPE REQUIRED
+        DESCRIPTION "unit testing library for the Qt5 framework"
+        PURPOSE "Required for building unit tests"
+    )
+    enable_testing()
+
+    # GTest messes with CMAKE_CXX_FLAGS, so process them again
+    process_cmake_cxx_flags()
 endif()
 
+# Check for SSL support in Qt
+#####################################################################
+
+cmake_push_check_state(RESET)
+set(CMAKE_REQUIRED_LIBRARIES Qt5::Core)
 check_cxx_source_compiles("
     #include \"qglobal.h\"
     #if defined QT_NO_SSL
@@ -497,93 +413,64 @@ check_cxx_source_compiles("
     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)
-    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-endif()
-
-# Needed to compile with mingw without kde
-if (MINGW AND NOT KDE4_FOUND)
-    add_definitions(-D_WIN32_WINNT=0x0500)
-    message(STATUS "Added _WIN32_WINNT=0x0500 definition for MinGW")
-    # workaround for bug in mingw gcc 4.0
-    add_definitions(-U__STRICT_ANSI__)
-endif()
-
-# Sanitize compiler flags - old versions of KDE set -ansi, which breaks -std=c++11
-if (CMAKE_COMPILER_IS_GNUCXX)
-    string(REPLACE "-ansi" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
+if (HAVE_SSL)
+    add_definitions(-DHAVE_SSL)
 endif()
+add_feature_info("SSL support in Qt" HAVE_SSL "Use secure network connections")
 
-# Setup LDAP Authentication support.
+# Setup support for KDE Frameworks
 #####################################################################
-if(WITH_LDAP)
-       find_package(Ldap)
-       if(LDAP_FOUND)
-               message(STATUS "Enabling LDAP authentication support")
-               set(HAVE_LDAP true)
-       else(LDAP_FOUND)
-               message(STATUS "Disabling LDAP authentication support")
-       endif(LDAP_FOUND)
-else(WITH_LDAP)
-       message(STATUS "Not enabling LDAP authentication support")
-endif(WITH_LDAP)
-
-# Setup KDE / 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 (WITH_KDE)
+    add_definitions(-DHAVE_KDE -DHAVE_KF5)
+    set(WITH_KF5 TRUE)
 
-if (USE_QT5 AND WITH_KDE)
     # If KDE Frameworks are present, they're most probably providing Qt5 integration including icon loading
     set(EMBED_DATA OFF)
 
     include(KDEInstallDirs)
-    include(KDECompilerSettings)
-    include(KDECMakeSettings)
-
-    add_definitions(-DHAVE_KDE -DHAVE_KF5)
-    set(WITH_KF5 TRUE)
 endif()
 
 # This needs to come after setting up KDE integration, so we can use KDE-specific paths
 include(QuasselInstallDirs)
 
-# Various config-dependent checks and settings
+# RPATH and output settings
 #####################################################################
 
-if (NOT ZLIB_FOUND)
-    message(STATUS "zlib NOT found, using bundled miniz for compression")
-    if (${CMAKE_SIZEOF_VOID_P} EQUAL 4)
-        message(STATUS "WARNING: This may be slow on 32 bit systems!")
-    endif()
-endif()
+# Build artifacts in a well-known location; especially important for Windows DLLs
+# (which go into RUNTIME_OUTPUT_DIRECTORY and can thus be found by executables)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
 
-if (HAVE_SSL)
-    add_definitions(-DHAVE_SSL)
+# These RPATH settings allow for running directly from the build dir
+set(CMAKE_SKIP_BUILD_RPATH            FALSE)
+set(CMAKE_BUILD_WITH_INSTALL_RPATH    FALSE)
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE )
+
+# Set install RPATH only if libdir isn't a system directory
+if (IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
+    set(libdir "${CMAKE_INSTALL_LIBDIR}")
+else()
+    set(libdir "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
+endif()
+list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${libdir}" is_systemdir)
+if ("${is_systemdir}" STREQUAL "-1")
+   set(CMAKE_INSTALL_RPATH "${libdir}")
 endif()
-add_feature_info("SSL support in Qt" HAVE_SSL "Use secure network connections")
+
+# Various config-dependent checks and settings
+#####################################################################
 
 # 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()
 
-add_feature_info("Qt Linguist Tools" QT_LCONVERT_EXECUTABLE "Translation support for Quassel")
+if (NOT WIN32)
+    check_function_exists(umask HAVE_UMASK)
+endif()
 
 if (EMBED_DATA)
     message(STATUS "Embedding data files into the binary")
@@ -591,105 +478,25 @@ 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()
-endif()
-
-
 # Windows-specific stuff
 #####################################################################
 
 if (WIN32)
     link_libraries(imm32 winmm dbghelp Secur32)  # missing by default :/
     if (MSVC)
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /DNOMINMAX")
-        set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBUGINFO "/debug /INCREMENTAL:YES /NODEFAULTLIB:libcmt /DEFAULTLIB:msvcrt")
-        set(CMAKE_EXE_LINKER_FLAGS_DEBUG "/debug /INCREMENTAL:YES /NODEFAULTLIB:libcmt")
-        set(CMAKE_EXE_LINKER_FLAGS_DEBUGFULL "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
         link_libraries(Version dwmapi shlwapi)
-        if (USE_QT5)
-            set(QT_QTMAIN_LIBRARY Qt5::WinMain)
-        endif()
-    endif()
-    if(HAVE_SSL AND STATIC)
-        find_package(OpenSSL REQUIRED)
-        link_libraries(${OPENSSL_LIBRARIES} ${OPENSSL_EAY_LIBRARIES})
     endif()
 endif()
 
-
-# Static builds (very much non-portable, so don't use -DSTATIC
-# unless you know what you do!)
-#####################################################################
-
-if(STATIC AND CMAKE_COMPILER_IS_GNUCXX)
-    set(CMAKE_CXX_FLAGS "-static-libgcc ${CMAKE_CXX_FLAGS}")
-    link_directories(${CMAKE_BINARY_DIR}/staticlibs) # override dynamic libs
-    if (HAVE_SSL)
-        set(QUASSEL_SSL_LIBRARIES ssl crypto)  # these miss in static builds
-    endif()
-endif()
-
-
-# Generate version information from Git
-#####################################################################
-
-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 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()
-  if (DEFINED ENV{GIT_DESCRIBE})
-     set(GIT_DESCRIBE $ENV{GIT_DESCRIBE})
-  endif()
-endif()
-
-# Sanitize things if we're not in a Git repo
-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)
-
 # Prepare the build
 #####################################################################
 
-# These variables will be added to the main targets (CORE, QTCLIENT, MONO)
-set(COMMON_DEPS ${RC_WIN32})
-set(CORE_DEPS )
-set(CLIENT_DEPS )
-
 # Add needed subdirs - the order is important, since src needs some vars set by other dirs
 add_subdirectory(data)
 add_subdirectory(icons)
 add_subdirectory(pics)
 add_subdirectory(po)
 
-
 # Set up and display feature summary
 #####################################################################
 
@@ -704,3 +511,8 @@ feature_summary(WHAT ALL
 #####################################################################
 
 add_subdirectory(src)
+
+# Build tests if so desired
+if (BUILD_TESTING)
+    add_subdirectory(tests)
+endif()