Rework how icons are handled in the build system
[quassel.git] / CMakeLists.txt
index b760710..fc22665 100644 (file)
@@ -11,9 +11,9 @@ project(QuasselIRC)
 
 # Versions
 set(QUASSEL_MAJOR  0)
-set(QUASSEL_MINOR 11)
+set(QUASSEL_MINOR 12)
 set(QUASSEL_PATCH  0)
-set(QUASSEL_VERSION_STRING "0.11-pre")
+set(QUASSEL_VERSION_STRING "0.12-pre")
 
 # Tell CMake about or own modules
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
@@ -22,16 +22,23 @@ set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
-# Moar stuff
+# Include various CMake modules...
+include(CMakePushCheckState)
 include(CheckFunctionExists)
 include(CheckIncludeFile)
+include(CheckCXXSourceCompiles)
+include(CMakeDependentOption)
+include(FeatureSummary)
 
+# ... and our own stuff
 include(QuasselCompileSettings)
 include(QuasselMacros)
 
-include(CMakeDependentOption)
-include(FeatureSummary)
-
+# 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)
+    cmake_policy(SET CMP0043 OLD)
+endif()
 
 # Options and variables that can be set on the command line
 #####################################################################
@@ -119,58 +126,57 @@ endif()
 #####################################################################
 
 if (USE_QT5)
-    message(STATUS "Building with the Qt5 libraries...")
+    message(STATUS "Building for Qt5...")
     set(QT_MIN_VERSION "5.2.0")
     add_definitions(-DHAVE_QT5)
 else()
-    message(STATUS "Building with the Qt4 libraries...")
+    message(STATUS "Building for Qt4...")
     if (BUILD_GUI)
         set(QT_MIN_VERSION "4.6.0")
     else()
         set(QT_MIN_VERSION "4.4.0")
     endif()
-endif()
 
-if (USE_QT5)
-    find_package(Qt5Core ${QT_MIN_VERSION} QUIET REQUIRED)
-
-    # Contains lconvert and friends
-    find_package(Qt5LinguistTools QUIET)
-    set_package_properties(Qt5LinguistTools PROPERTIES TYPE RECOMMENDED
-                           PURPOSE "Required for localization support"
-    )
-else()
     # 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()
-
-    # Now that we have the correct $PATH, lets find Qt!
-    find_package(Qt4 ${QT_MIN_VERSION} QUIET REQUIRED)
-endif()
-
-# Neither Qt4 nor Qt5 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)
-    if (USE_QT5)
-        find_program(QT_LCONVERT_EXECUTABLE NAMES lconvert-qt5 lconvert PATHS ${_lrelease_path} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
-    else()
-        find_program(QT_LCONVERT_EXECUTABLE NAMES lconvert-qt4 lconvert PATHS ${_lrelease_path} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
-    endif()
 endif()
 
-add_feature_info("Qt Linguist Tools" QT_LRELEASE_EXECUTABLE "Translation support for Quassel")
-
-# Optional Dependencies
+# Find package dependencies
 #
 # Note that you can forcefully disable optional packages
 # using -DCMAKE_DISABLE_FIND_PACKAGE_<PkgName>=TRUE
 #####################################################################
 
-if(USE_QT5)
+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()
+
+    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"
+        )
+
         find_package(Qt5DBus QUIET)
         set_package_properties(Qt5DBus PROPERTIES TYPE RECOMMENDED
             URL "http://qt.digia.com"
@@ -178,7 +184,7 @@ if(USE_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)
+            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"
@@ -193,18 +199,42 @@ if(USE_QT5)
             PURPOSE     "Required for audio notifications"
         )
 
+        find_package(LibsnoreQt5 QUIET)
+        set_package_properties(LibsnoreQt5 PROPERTIES TYPE OPTIONAL
+            URL "https://github.com/TheOneRing/Snorenotify"
+            DESCRIPTION "a cross-platform notification framework"
+            PURPOSE     "Enable support for the snorenotify framework"
+        )
+
         if (WITH_WEBKIT)
-            find_package(Qt5Webkit QUIET)
-            set_package_properties(Qt5Webkit PROPERTIES TYPE RECOMMENDED
+            find_package(Qt5WebKit QUIET)
+            set_package_properties(Qt5WebKit PROPERTIES TYPE RECOMMENDED
                 URL "http://qt.digia.com"
-                DESCRIPTION "a Webkit implementation for Qt"
+                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"
+                    DESCRIPTION "widgets for Qt's WebKit implementation"
+                    PURPOSE     "Needed for displaying previews for URLs in chat"
+                )
+            endif()
         endif()
-        add_feature_info("WITH_WEBKIT and QtWebkit module" Qt5Webkit_FOUND "Support showing previews for URLs in chat")
+        add_feature_info("WITH_WEBKIT, QtWebKit and QtWebKitWidgets modules" Qt5WebKitWidgets_FOUND "Support showing previews for URLs in chat")
 
     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"
+        )
+
         # While QCA2 seems to support Qt5, it is not actually co-installable or distinguishable from the Qt4 version...
         # In order to avoid linking against the Qt4 version (which is probably the one installed), disable this for now
         #find_package(QCA2 QUIET)
@@ -216,11 +246,37 @@ if(USE_QT5)
 
     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(libdbusmenu-qt QUIET)
+            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"
@@ -231,7 +287,7 @@ else(USE_QT5)
         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")
+        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
@@ -279,8 +335,16 @@ else(USE_QT5)
 
 
     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
 
 # zlib for compression, however we can always fall back to miniz
@@ -320,10 +384,24 @@ if (KDE4_FOUND)
     add_definitions(-DHAVE_KDE ${KDE4_DEFINITIONS})
 endif()
 
-# Check for SSL support in Qt (broken for Qt5 currently)
-# We don't link to the OpenSSL libraries ourselves.
-if (QT_QCONFIG MATCHES "openssl")
-    set(HAVE_SSL true)
+# 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)
+if (Qt5_POSITION_INDEPENDENT_CODE)
+    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+endif()
+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()
 add_feature_info("SSL support in Qt" HAVE_SSL "Use secure network connections")
@@ -334,6 +412,7 @@ if (NOT WIN32)
     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")
 
 # Various settings
 ##################
@@ -386,10 +465,14 @@ endif(STATIC AND CMAKE_COMPILER_IS_GNUCXX)
 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(USE_QT5)
   endif(MSVC)
   if(HAVE_SSL AND STATIC)
      find_package(OpenSSL REQUIRED)
@@ -431,7 +514,6 @@ add_subdirectory(data)
 add_subdirectory(icons)
 add_subdirectory(pics)
 add_subdirectory(po)
-add_subdirectory(src)
 
 # Set up and display feature summary
 #####################################################################
@@ -440,3 +522,10 @@ 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 modules misses
+#####################################################################
+
+add_subdirectory(src)