Add KF6 build support and CI

.gitlab-ci.yml

@@ -4,3 +4,4 @@
 include:
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/linux.yml
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/freebsd.yml
+  - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/linux-qt6.yml

CMakeLists.txt

@@ -4,7 +4,7 @@ project(decoration-api)
 set(PROJECT_VERSION "5.24.80")
 
 set(QT_MIN_VERSION "5.15.0")
-set(KF5_MIN_VERSION "5.86")
+set(KF5_MIN_VERSION "5.90")
 set(KDE_COMPILERSETTINGS_LEVEL "5.82")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED NO_MODULE)
@@ -29,7 +29,7 @@ ecm_setup_version(${PROJECT_VERSION} VARIABLE_PREFIX KDECORATION2
                         SOVERSION 5)
 
 #dependencies
-find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS
+find_package(Qt${QT_MAJOR_VERSION} ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS
     Core
     Gui
     Test
@@ -78,7 +78,7 @@ install(EXPORT KDecoration2Targets DESTINATION "${CMAKECONFIG_INSTALL_DIR}" FILE
 
 
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/kdecoration2_version.h
-        DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5} COMPONENT Devel )
+        DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF} COMPONENT Devel )
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
 

KDecoration2Config.cmake.in

 @PACKAGE_INIT@
 
 include(CMakeFindDependencyMacro)
-find_dependency(Qt5Gui @QT_MIN_VERSION@)
+find_dependency(Qt@QT_MAJOR_VERSION@Gui @QT_MIN_VERSION@)
 
 
 include("${CMAKE_CURRENT_LIST_DIR}/KDecoration2Targets.cmake")

src/CMakeLists.txt

@@ -69,7 +69,7 @@ install(FILES ${KDecoration2_CamelCase_HEADERS}
         DESTINATION ${KDECORATION2_INCLUDEDIR}/KDecoration2
         COMPONENT Devel)
 
-install(TARGETS kdecorations2 EXPORT KDecoration2Targets ${KF5_INSTALL_TARGETS_DEFAULT_ARGS})
+install(TARGETS kdecorations2 EXPORT KDecoration2Targets ${KF_INSTALL_TARGETS_DEFAULT_ARGS})
 
 install(
     FILES

src/private/CMakeLists.txt

@@ -45,7 +45,7 @@ install(FILES ${KDecoration2Private_CamelCase_HEADERS}
         DESTINATION ${KDECORATION2_INCLUDEDIR}/KDecoration2/Private
         COMPONENT Devel)
 
-install(TARGETS kdecorations2private EXPORT KDecoration2Targets ${KF5_INSTALL_TARGETS_DEFAULT_ARGS})
+install(TARGETS kdecorations2private EXPORT KDecoration2Targets ${KF_INSTALL_TARGETS_DEFAULT_ARGS})
 
 install(
     FILES