diff --git a/CMakeLists.txt b/CMakeLists.txt
index 48bf9f94e..bdd1ae438 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,172 +1,172 @@
 cmake_minimum_required(VERSION 3.5)
 set(PIM_VERSION "5.11.40")
 set(KDEPIM_RUNTIME_VERSION_NUMBER ${PIM_VERSION})
 project(kdepim-runtime VERSION ${KDEPIM_RUNTIME_VERSION_NUMBER})
 
 if (POLICY CMP0053)
     cmake_policy(SET CMP0053 NEW)
 endif()
 
 ############### KDEPIM-Runtime version ################
 # KDEPIM_RUNTIME_VERSION
 # Version scheme: "x.y.z build".
 #
 # x is the version number.
 # y is the major release number.
 # z is the minor release number.
 #
 # "x.y.z" follow the kdelibs version kdepim is released with.
 #
 # If "z" is 0, it the version is "x.y"
 #
 # KDEPIM_DEV_VERSION
 # is empty for final versions. For development versions "build" is
 # something like "pre", "", "alpha2", "beta1", "beta2", "rc1", "rc2".
 #
 # Examples in chronological order:
 #
 #    3.0
 #    3.0.1
 #    3.1 
 #    3.1 beta1
 #    3.1 beta2
 #    3.1 rc1
 #    3.1
 #    3.1.1
 #    3.2 pre
 #    3.2 
 
 set(KDEPIM_DEV_VERSION alpha)
 
 # add an extra space
 if(DEFINED KDEPIM_DEV_VERSION)
     set(KDEPIM_DEV_VERSION " ${KDEPIM_DEV_VERSION}")
 endif()
 
 set(KDEPIM_RUNTIME_VERSION "${KDEPIM_RUNTIME_VERSION_NUMBER}${KDEPIM_DEV_VERSION}")
 
 configure_file(kdepim-runtime-version.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/kdepim-runtime-version.h @ONLY)
 
 set(KF5_MIN_VERSION "5.58.0")
 
 find_package(ECM ${KF5_MIN_VERSION} CONFIG REQUIRED)
 set(CMAKE_MODULE_PATH ${kdepim-runtime_SOURCE_DIR}/cmake/ ${ECM_MODULE_PATH})
 
 
 include(ECMSetupVersion)
 include(FeatureSummary)
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDEFrameworkCompilerSettings NO_POLICY_SCOPE)
 include(ECMInstallIcons)
 include(ECMQtDeclareLoggingCategory)
 include(GenerateExportHeader)
 
 
 set(QT_REQUIRED_VERSION "5.10.0")
 
 set(KDEPIMRUNTIME_LIB_VERSION "${KDEPIM_RUNTIME_VERSION_NUMBER}")
 set(KDEPIMRUNTIME_LIB_SOVERSION "5")
 set(AKONADI_VERSION "5.11.40")
 
 set(KCONTACTS_LIB_VERSION "5.11.40")
 set(KCALENDARCORE_LIB_VERSION "5.11.43")
 set(IDENTITYMANAGEMENT_LIB_VERSION "5.11.40")
 set(KMAILTRANSPORT_LIB_VERSION "5.11.40")
 set(CALENDARUTILS_LIB_VERSION "5.11.40")
 set(KDAV_LIB_VERSION "5.11.40")
 set(KIMAP_LIB_VERSION "5.11.40")
 set(KMBOX_LIB_VERSION "5.11.40")
 set(AKONADICALENDAR_LIB_VERSION "5.11.40")
 set(KONTACTINTERFACE_LIB_VERSION "5.11.40")
 set(AKONADIKALARM_LIB_VERSION "5.11.40")
 set(KMIME_LIB_VERSION "5.11.40")
 set(XMLRPCCLIENT_LIB_VERSION "5.11.40")
 set(KCONTACTS_LIB_VERSION "5.11.40")
 set(AKONADIMIME_LIB_VERSION "5.11.40")
 set(AKONADICONTACT_LIB_VERSION "5.11.40")
 set(AKONADINOTE_LIB_VERSION "5.11.40")
 set(PIMCOMMON_LIB_VERSION "5.11.40")
 set(KGAPI_LIB_VERSION "5.11.40")
 
 set( SharedMimeInfo_MINIMUM_VERSION "1.3" )
 find_package(SharedMimeInfo ${SharedMimeInfo_MINIMUM_VERSION} REQUIRED)
 
 find_package(Sasl2)
 set_package_properties(Sasl2 PROPERTIES TYPE REQUIRED)
 
 find_package(Qca-qt5)
 option(KDEPIM_RUN_AKONADI_TEST "Enable autotest based on Akonadi." TRUE)
 # QT5 package
 find_package(Qt5 ${QT_REQUIRED_VERSION} CONFIG REQUIRED TextToSpeech Network Widgets Test XmlPatterns DBus WebEngineWidgets NetworkAuth)
 if (NOT Qca-qt5_FOUND)
     message(STATUS "QCA not found, public key authentication will not be supported")
 else()
     add_definitions(-DHAVE_QCA)
 endif()
 
 
 # KF5 package
 find_package(KF5Config ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5ConfigWidgets ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5NotifyConfig ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5KIO ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5ItemModels ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5Codecs ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5WindowSystem ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5TextWidgets ${KF5_MIN_VERSION} CONFIG REQUIRED) # for KPluralHandlingSpinBox
 find_package(KF5Notifications ${KF5_MIN_VERSION} CONFIG REQUIRED) # pop3, ews
 find_package(KF5DocTools ${KF5_MIN_VERSION} CONFIG REQUIRED) # pop3
 find_package(KF5Holidays ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5DBusAddons ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5IconThemes ${KF5_MIN_VERSION} CONFIG REQUIRED)
 find_package(KF5KDELibs4Support ${KF5_MIN_VERSION} CONFIG REQUIRED)
 
 # KdepimLibs package
 find_package(KF5Akonadi ${AKONADI_VERSION} CONFIG REQUIRED)
 find_package(KPimKDAV ${KDAV_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5Mime ${KMIME_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5AkonadiMime ${AKONADIMIME_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5MailTransportAkonadi ${KMAILTRANSPORT_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5IdentityManagement ${IDENTITYMANAGEMENT_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5AkonadiContact ${AKONADICONTACT_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5Contacts ${KCONTACTS_LIB_VERSION} CONFIG REQUIRED)
-find_package(KF5AlarmCalendar ${AKONADIKALARM_LIB_VERSION} CONFIG REQUIRED)
+find_package(KF5AlarmCalendar ${AKONADIKALARM_LIB_VERSION} CONFIG)
 find_package(KF5CalendarCore ${KCALENDARCORE_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5CalendarUtils ${CALENDARUTILS_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5Mbox ${KMBOX_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5IMAP ${KIMAP_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5AkonadiNotes ${AKONADINOTE_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5AkonadiCalendar ${AKONADICALENDAR_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5PimCommon ${PIMCOMMON_LIB_VERSION} CONFIG REQUIRED)
 find_package(KPimGAPI ${KGAPI_LIB_VERSION} CONFIG REQUIRED)
 
 option(KDEPIM_RUN_ISOLATED_TESTS "Run the isolated tests." FALSE)
 option(NO_REGENERATE_MIME "Don't regenerate mime file (developer-only option)" FALSE )
 
 
 #add_definitions( -DQT_DISABLE_DEPRECATED_BEFORE=0x060000 )
 find_package(Xsltproc)
 set_package_properties(Xsltproc PROPERTIES DESCRIPTION "XSLT processor from libxslt" TYPE REQUIRED PURPOSE "Required to generate D-Bus interfaces for all Akonadi resources.")
 
 
 add_subdirectory(resources)
 add_subdirectory(agents)
 add_subdirectory(defaultsetup)
 add_subdirectory(kioslave)
 add_subdirectory(migration)
 add_subdirectory(doc)
 
 ## install the MIME type spec file for KDEPIM specific MIME types
 install(FILES kdepim-mime.xml DESTINATION ${KDE_INSTALL_MIMEDIR})
 if (NOT NO_REGENERATE_MIME)
    update_xdg_mimetypes(${KDE_INSTALL_MIMEDIR})
 endif()   
 
 
 install( FILES kdepim-runtime.renamecategories kdepim-runtime.categories DESTINATION ${KDE_INSTALL_CONFDIR} )
 
 feature_summary(WHAT ALL
                 INCLUDE_QUIET_PACKAGES
                 FATAL_ON_MISSING_REQUIRED_PACKAGES
 )
diff --git a/resources/CMakeLists.txt b/resources/CMakeLists.txt
index ad5cf7b3d..676bb9795 100644
--- a/resources/CMakeLists.txt
+++ b/resources/CMakeLists.txt
@@ -1,61 +1,63 @@
 # Libkolabxml
 find_package(Libkolabxml 1.1 QUIET CONFIG)
 set_package_properties(Libkolabxml PROPERTIES DESCRIPTION "Kolabxml" URL "http://mirror.kolabsys.com/pub/releases" TYPE OPTIONAL PURPOSE "The Kolab XML Format Schema Definitions Library is required to build the Kolab Groupware Resource")
 
 include_directories(
   ${CMAKE_CURRENT_SOURCE_DIR}/shared/singlefileresource/
   ${CMAKE_CURRENT_BINARY_DIR}/shared/singlefileresource/
   ${CMAKE_CURRENT_SOURCE_DIR}/folderarchivesettings/
 )
 
 
 # resource tests
 macro( akonadi_add_resourcetest _testname _script )
   if ( ${EXECUTABLE_OUTPUT_PATH} )
     set( _exepath ${EXECUTABLE_OUTPUT_PATH} )
   else ()
     set( _exepath ${kdepim-runtime_BINARY_DIR}/resourcetester )
   endif ()
   if (WIN32)
     set(_resourcetester ${_exepath}/resourcetester.bat)
   else ()
     set(_resourcetester ${_exepath}/resourcetester)
   endif ()
   if (UNIX)
     set(_resourcetester ${_resourcetester}.shell)
   endif ()
   configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${_script} ${CMAKE_CURRENT_BINARY_DIR}/${_script} COPYONLY)
   if (KDEPIM_RUN_ISOLATED_TESTS)
     add_test( NAME akonadi-mysql-db-${_testname} COMMAND akonaditest -c ${kdepim-runtime_SOURCE_DIR}/resourcetester/tests/unittestenv/config-mysql-db.xml ${_resourcetester} -c ${CMAKE_CURRENT_BINARY_DIR}/${_script} )
   endif ()
 endmacro( akonadi_add_resourcetest )
 
 
 
 add_subdirectory( akonotes )
-add_subdirectory( kalarm )
+if (TARGET KF5::AlarmCalendar)
+    add_subdirectory( kalarm )
+endif()
 add_subdirectory( contacts )
 add_subdirectory( dav )
 add_subdirectory( ical )
 add_subdirectory( imap )
 if (Libkolabxml_FOUND)
     add_subdirectory( kolab )
 endif()
 add_subdirectory( facebook )
 add_subdirectory( maildir )
 
 add_subdirectory( openxchange )
 add_subdirectory( pop3 )
 
 add_subdirectory( google )
 
 add_subdirectory( shared )
 add_subdirectory( birthdays )
 add_subdirectory( mixedmaildir )
 add_subdirectory( mbox )
 add_subdirectory( vcarddir )
 add_subdirectory( icaldir )
 add_subdirectory( vcard )
 add_subdirectory( folderarchivesettings )
 add_subdirectory( tomboynotes )
 add_subdirectory( ews )