Make lcms2 a hard dependency

When we do more color management stuff we'll need it in more places,
making it a hard requirement reduces the amount of needed ifdefs and
should make adding color management features a little simpler.

CMakeLists.txt

@@ -237,9 +237,9 @@ find_package(lcms2)
 set_package_properties(lcms2 PROPERTIES
     DESCRIPTION "Small-footprint color management engine"
     URL "http://www.littlecms.com"
-    TYPE OPTIONAL
+    TYPE REQUIRED
+    PURPOSE "Required for the color management system"
 )
-add_feature_info("lcms2" lcms2_FOUND "Required for the color management system")
 
 # All the required XCB components
 find_package(XCB 1.10 REQUIRED COMPONENTS
@@ -345,7 +345,6 @@ option(KWIN_BUILD_SCREENLOCKER "Enable building of KWin lockscreen functionality
 option(KWIN_BUILD_TABBOX "Enable building of KWin Tabbox functionality" ON)
 cmake_dependent_option(KWIN_BUILD_ACTIVITIES "Enable building of KWin with kactivities support" ON "KF5Activities_FOUND" OFF)
 cmake_dependent_option(KWIN_BUILD_RUNNERS "Enable building of KWin with krunner support" ON "KF5Runner_FOUND" OFF)
-cmake_dependent_option(KWIN_BUILD_CMS "Enable building of KWin with CMS" ON "lcms2_FOUND" OFF)
 
 # Binary name of KWin
 set(KWIN_NAME "kwin")

autotests/integration/CMakeLists.txt

@@ -141,10 +141,7 @@ integrationTest(WAYLAND_ONLY NAME testOutputChanges SRCS outputchanges_test.cpp)
 
 qt_add_dbus_interfaces(DBUS_SRCS ${CMAKE_BINARY_DIR}/src/org.kde.kwin.VirtualKeyboard.xml)
 integrationTest(WAYLAND_ONLY NAME testVirtualKeyboardDBus SRCS test_virtualkeyboard_dbus.cpp ${DBUS_SRCS})
-
-if (KWIN_BUILD_CMS)
-    integrationTest(WAYLAND_ONLY NAME testNightColor SRCS nightcolor_test.cpp LIBS KWinNightColorPlugin)
-endif()
+integrationTest(WAYLAND_ONLY NAME testNightColor SRCS nightcolor_test.cpp LIBS KWinNightColorPlugin)
 
 if (XCB_ICCCM_FOUND)
     integrationTest(NAME testMoveResize SRCS move_resize_window_test.cpp LIBS XCB::ICCCM)

src/CMakeLists.txt

@@ -32,6 +32,8 @@ target_sources(kwin PRIVATE
     appmenu.cpp
     atoms.cpp
     client_machine.cpp
+    colordevice.cpp
+    colormanager.cpp
     composite.cpp
     cursor.cpp
     cursordelegate_opengl.cpp
@@ -201,6 +203,7 @@ target_link_libraries(kwin
     epoxy::epoxy
 
     Threads::Threads
+    lcms2::lcms2
 )
 if (QT_MAJOR_VERSION EQUAL "5")
     target_link_libraries(kwin Qt5::XkbCommonSupportPrivate)
@@ -245,14 +248,6 @@ add_subdirectory(backends)
 add_subdirectory(scenes)
 add_subdirectory(utils)
 
-if (KWIN_BUILD_CMS)
-    target_sources(kwin PRIVATE
-        colordevice.cpp
-        colormanager.cpp
-    )
-    target_link_libraries(kwin lcms2::lcms2)
-endif()
-
 if (KWIN_BUILD_ACTIVITIES)
     target_sources(kwin PRIVATE activities.cpp)
     target_link_libraries(kwin KF5::Activities)

src/config-kwin.h.cmake

@@ -5,7 +5,6 @@
 #cmakedefine01 KWIN_BUILD_SCREENLOCKER
 #cmakedefine01 KWIN_BUILD_TABBOX
 #cmakedefine01 KWIN_BUILD_ACTIVITIES
-#cmakedefine01 KWIN_BUILD_CMS
 #define KWIN_NAME "${KWIN_NAME}"
 #define KWIN_INTERNAL_NAME_X11 "${KWIN_INTERNAL_NAME_X11}"
 #define KWIN_CONFIG "${KWIN_NAME}rc"

src/main.cpp

@@ -13,9 +13,7 @@
 
 #include "atoms.h"
 #include "platform.h"
-#if KWIN_BUILD_CMS
 #include "colormanager.h"
-#endif
 #include "composite.h"
 #include "cursor.h"
 #include "input.h"
@@ -311,9 +309,7 @@ void Application::createPlugins()
 
 void Application::createColorManager()
 {
-#if KWIN_BUILD_CMS
     ColorManager::create(this);
-#endif
 }
 
 void Application::createInputMethod()
@@ -353,9 +349,7 @@ void Application::destroyPlugins()
 
 void Application::destroyColorManager()
 {
-#if KWIN_BUILD_CMS
     delete ColorManager::self();
-#endif
 }
 
 void Application::destroyInputMethod()

src/plugins/CMakeLists.txt

@@ -3,18 +3,14 @@ add_subdirectory(qpa)
 add_subdirectory(idletime)
 add_subdirectory(windowsystem)
 add_subdirectory(kpackage)
-if (KWIN_BUILD_CMS)
-    add_subdirectory(nightcolor)
-endif()
+add_subdirectory(nightcolor)
+add_subdirectory(colord-integration)
 if (KWIN_BUILD_DECORATIONS)
     add_subdirectory(kdecorations)
 endif()
 if (PipeWire_FOUND)
     add_subdirectory(screencast)
 endif()
-if (KWIN_BUILD_CMS)
-    add_subdirectory(colord-integration)
-endif()
 if (KWIN_BUILD_RUNNERS)
     add_subdirectory(krunner-integration)
 endif()