modernize: Use std::make_unique
[quassel.git] / CMakeLists.txt
index 92043db..8af98b1 100644 (file)
-PROJECT(Quassel)
-
-# 2.4.2 had a bug with out-of-source builds and UIC dependencies.
-CMAKE_MINIMUM_REQUIRED(VERSION 2.4.3 FATAL_ERROR)
-
-# Select if Quassel should be built in client, server or monolithic mode
-SET(BUILD "mono" CACHE STRING "Defines which Quassel parts are to be built. Can contain 'core', 'gui' and/or 'monolithic' (which is the default), or 'all' to build everything.")
-SET(BUILD_CORE )
-SET(BUILD_GUI )
-SET(BUILD_MONO )
-IF(BUILD MATCHES "core" OR BUILD MATCHES "all")
-  SET(BUILD_CORE true)
-  MESSAGE("Building Quassel core.")
-ENDIF(BUILD MATCHES "core" OR BUILD MATCHES "all")
-IF(BUILD MATCHES "gui" OR BUILD MATCHES "all")
-  SET(BUILD_GUI true)
-  MESSAGE("Building Quassel GUI.")
-ENDIF(BUILD MATCHES "gui" OR BUILD MATCHES "all")
-IF(BUILD MATCHES "mono" OR BUILD MATCHES "all")
-  SET(BUILD_MONO true)
-  MESSAGE("Building monolithic Quassel.")
-ENDIF(BUILD MATCHES "mono" OR BUILD MATCHES "all")
-IF(NOT BUILD_MONO AND NOT BUILD_CORE AND NOT BUILD_GUI)
-  MESSAGE(FATAL_ERROR "\nYou have not selected which parts of Quassel I should build. Aborting.\nRun 'cmake <path> -DBUILD=<part>', where <part> contains one or more of 'core', 'gui' or 'monolithic', or 'all' to build everything.\n")
-ENDIF(NOT BUILD_MONO AND NOT BUILD_CORE AND NOT BUILD_GUI)
-
-#SET(CMAKE_BUILD_TYPE Debug)
-
-# Define files
-SET(quassel_mono_SRCS main/main_mono.cpp)
-SET(quassel_core_SRCS main/main_core.cpp)
-SET(quassel_gui_SRCS  main/main_gui.cpp ${common_SRCS})
-SET(quassel_RCCS images/icons.qrc)
-SET(quassel_DIRS main gui core)
-
-# Build correct absolute paths for subdirs to include
-SET(SDIRS "")
-FOREACH(dir ${quassel_DIRS})
-  SET(SDIRS ${SDIRS} "${CMAKE_CURRENT_SOURCE_DIR}/${dir}")
-ENDFOREACH(dir)
-INCLUDE_DIRECTORIES(${SDIRS} plugins)
-INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
-
-# We need Qt4 support.
-SET(QT_MIN_VERSION "4.2.0")
-FIND_PACKAGE(Qt4 REQUIRED)
-
-# Set needed libraries
-SET(QT_USE_QTXML true)
-SET(QT_USE_QTSQL true)
-SET(QT_USE_QTNETWORK true)
-SET(QT_DONT_USE_QTGUI true)   # This is added later if GUI is requested
-INCLUDE(${QT_USE_FILE})
-
-# Define subdirs. CMake complains if a directory is added twice, so make sure this
-# does not happen in any combination of the requested targets.
-
-ADD_SUBDIRECTORY(main)
-IF(BUILD_CORE)
-  ADD_SUBDIRECTORY(core)
-ENDIF(BUILD_CORE)
-IF(BUILD_MONO AND NOT BUILD_CORE)
-  ADD_SUBDIRECTORY(core)
-ENDIF(BUILD_MONO AND NOT BUILD_CORE)
-
-QT4_ADD_RESOURCES(_RCCS ${quassel_RCCS})
-
-IF(BUILD_CORE)
-  ADD_DEFINITIONS(-DBUILD_CORE)
-  ADD_EXECUTABLE(quasselcore ${quassel_core_SRCS} ${_RCCS})
-  TARGET_LINK_LIBRARIES(quasselcore core main ${QT_LIBRARIES})
-ENDIF(BUILD_CORE)
-
-IF(BUILD_GUI OR BUILD_MONO)  # OK, now we need QtGui!
-  REMOVE_DEFINITIONS(-DQT_CORE_LIB -DQT_GUI_LIB ${QT_DEFINITIONS})
-  SET(QT_DONT_USE_QTGUI "")
-  SET(QT_INCLUDE_DIR "")
-  SET(QT_LIBRARIES "")
-  INCLUDE(${QT_USE_FILE})
-  ADD_SUBDIRECTORY(gui)
-
-  IF(BUILD_MONO)
-    ADD_DEFINITIONS(-DBUILD_MONO)
-    ADD_EXECUTABLE(quassel ${quassel_mono_SRCS} ${_RCCS})
-    TARGET_LINK_LIBRARIES(quassel gui core main ${QT_LIBRARIES})
-  ENDIF(BUILD_MONO)
-
-  IF(BUILD_GUI)
-    ADD_DEFINITIONS(-DBUILD_GUI)
-    ADD_EXECUTABLE(quasselgui ${quassel_gui_SRCS} ${_RCCS})
-    TARGET_LINK_LIBRARIES(quasselgui gui main ${QT_LIBRARIES})
-  ENDIF(BUILD_GUI)
-
-ENDIF(BUILD_GUI OR BUILD_MONO)
+# Main CMake file for building Quassel IRC
+#
+# See INSTALL for possible CMake options (or read the code, Luke)
+#####################################################################
+
+# General setup
+#####################################################################
+
+cmake_minimum_required(VERSION 3.5)
+
+# Tell CMake about or own modules
+set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
+
+# Versions
+set(QUASSEL_MAJOR  0)
+set(QUASSEL_MINOR 13)
+set(QUASSEL_PATCH 50)
+set(QUASSEL_VERSION_STRING "0.14-pre")
+
+# Output CMake and Quassel versions as well as build type for debug reasons
+message(STATUS "Building Quassel ${QUASSEL_VERSION_STRING}...")
+message(STATUS "Using CMake ${CMAKE_VERSION}")
+
+# Set up build type rather early
+include(BuildType)
+
+# Support ccache if found
+# This should happen before calling project(), so compiler settings are validated.
+option(USE_CCACHE "Enable support for ccache if available" ON)
+if (USE_CCACHE)
+    message(STATUS "Checking for ccache")
+    find_program(CCACHE_PROGRAM ccache)
+    if (CCACHE_PROGRAM)
+        set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
+        message(STATUS "Checking for ccache - enabled")
+    else()
+        message(STATUS "Checking for ccache - not found")
+    endif()
+endif()
+
+# 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(CheckIncludeFileCXX)
+include(CheckCXXSourceCompiles)
+include(CMakeDependentOption)
+include(FeatureSummary)
+
+# ... and our own
+include(QuasselCompileSettings)
+include(QuasselMacros)
+
+# Options and variables that can be set on the command line
+#####################################################################
+
+# Select the binaries to build
+option(WANT_CORE     "Build the core (server) binary"           ON)
+option(WANT_QTCLIENT "Build the client-only binary"             ON)
+option(WANT_MONO     "Build the monolithic (all-in-one) binary" ON)
+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 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)")
+
+# For this, the feature info is added after we know if QtWebkit is installed
+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 (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 or OSX; never embed when enabling KDE integration
+set(EMBED_DEFAULT OFF)
+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 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)
+
+
+# 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
+#####################################################################
+
+# Let automoc/autouic process generated files
+if (POLICY CMP0071)
+    cmake_policy(SET CMP0071 NEW)
+endif()
+
+# Simplify later checks
+#####################################################################
+
+if (WANT_MONO OR WANT_QTCLIENT)
+    set(BUILD_GUI true)
+endif()
+if (WANT_MONO OR WANT_CORE)
+    set(BUILD_CORE true)
+endif()
+
+
+# Set up Qt
+#####################################################################
+
+# Find package dependencies
+#
+# Note that you can forcefully disable optional packages
+# using -DCMAKE_DISABLE_FIND_PACKAGE_<PkgName>=TRUE
+#####################################################################
+
+set(QT_MIN_VERSION "5.5.0")
+
+# 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(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}")
+
+# Optional Qt components
+
+find_package(Qt5LinguistTools QUIET)
+set_package_properties(Qt5LinguistTools PROPERTIES TYPE RECOMMENDED
+    DESCRIPTION "contains tools for handling translation files"
+    PURPOSE "Required for having translations"
+)
+
+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 (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"
+    )
+
+    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 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()
+
+    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 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 OPTIONAL
+                    URL "https://www.qt.io/"
+                    DESCRIPTION "widgets for Qt's WebKit implementation"
+                    PURPOSE     "Needed for displaying previews for URLs in chat"
+                    )
+            endif()
+        endif()
+
+        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)")
+    endif()
+
+    # 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()
+
+    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 REQUIRED COMPONENTS ConfigWidgets CoreAddons Notifications NotifyConfig Sonnet TextWidgets WidgetsAddons XmlGui)
+            set_package_properties(KF5 PROPERTIES TYPE REQUIRED
+                URL "http://www.kde.org"
+                DESCRIPTION "KDE Frameworks"
+                PURPOSE     "Required for integration into the Plasma desktop"
+            )
+            message(STATUS "Found KDE Frameworks ${KF5_VERSION}")
+        endif()
+
+        # 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)
+    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"
+    )
+
+    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()
+endif()
+
+# Non-Qt-based packages
+
+find_package(ZLIB REQUIRED)
+set_package_properties(ZLIB PROPERTIES TYPE REQUIRED
+    URL "http://www.zlib.net"
+    DESCRIPTION "a popular compression library"
+    PURPOSE     "Used for protocol compression"
+)
+
+if (NOT WIN32)
+    # 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
+cmake_push_check_state(RESET)
+set(CMAKE_REQUIRED_LIBRARIES Qt5::Core)
+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()
+
+if (HAVE_SSL)
+    add_definitions(-DHAVE_SSL)
+endif()
+add_feature_info("SSL support in Qt" HAVE_SSL "Use secure network connections")
+
+# Additional compile settings
+#####################################################################
+
+# Needed to compile with mingw without kde
+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
+    add_definitions(-U__STRICT_ANSI__)
+endif()
+
+# 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 (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)
+
+    kde_enable_exceptions()
+    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)
+
+# RPATH and output settings
+#####################################################################
+
+# 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")
+
+# 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 "${libdir}")
+endif()
+
+# Various config-dependent checks and settings
+#####################################################################
+
+# Check for syslog support
+if (NOT WIN32)
+    check_include_file_cxx(syslog.h HAVE_SYSLOG)
+    add_feature_info("syslog.h" HAVE_SYSLOG "Provide support for logging to the syslog")
+endif()
+
+if (NOT WIN32)
+    check_function_exists(umask HAVE_UMASK)
+endif()
+
+if (EMBED_DATA)
+    message(STATUS "Embedding data files into the binary")
+else()
+    message(STATUS "Installing data files separately")
+endif()
+
+# Windows-specific stuff
+#####################################################################
+
+if (WIN32)
+    link_libraries(imm32 winmm dbghelp Secur32)  # missing by default :/
+    if (MSVC)
+        set(CMAKE_CXX_FLAGS "${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)
+    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 -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()
+  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
+#####################################################################
+
+# 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
+#####################################################################
+
+feature_summary(WHAT ALL
+                INCLUDE_QUIET_PACKAGES
+                FATAL_ON_MISSING_REQUIRED_PACKAGES
+)
+
+# Finally, compile the sources
+# We want this after displaying the feature summary to avoid ugly
+# CMake backtraces in case a required Qt5 module is missing
+#####################################################################
+
+add_subdirectory(src)