Remove our own copy of FindCanberra

extra-cmake-modules comes with one since 5.56.0 and we require 5.68.0
already.

CMakeLists.txt

@@ -67,8 +67,6 @@ if (BUILD_DATAENGINE)
   set_package_properties(KF5Plasma PROPERTIES PURPOSE "Required to build the Plasma dataengine")
 endif ()
 
-set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules ${CMAKE_MODULE_PATH})
-
 # PulseAudio is an optional dependency
 find_package(PulseAudio "${PA_MIN_VERSION}")
 
@@ -100,7 +98,6 @@ endif ()
 
 if (CANBERRA_FOUND)
   add_definitions(-DHAVE_CANBERRA)
-  include_directories(${CANBERRA_INCLUDE_DIRS})
 endif ()
 
 ####################################################################################################
@@ -219,7 +216,7 @@ endif ()
 
 if (CANBERRA_FOUND)
   # VolumeFeedback calls Canberra directly, so public linking is required
-  target_link_libraries(kmixcore PUBLIC ${CANBERRA_LIBRARIES})
+  target_link_libraries(kmixcore PUBLIC Canberra::Canberra)
 endif ()
 
 install(TARGETS kmixcore DESTINATION ${KDE_INSTALL_LIBDIR} LIBRARY NAMELINK_SKIP)

cmake/modules/COPYING-CMAKE-SCRIPTS

-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. The name of the author may not be used to endorse or promote products 
-   derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cmake/modules/FindCanberra.cmake

-# - Find libcanberra's libraries and headers.
-# This module defines the following variables:
-#
-#  CANBERRA_FOUND        - true if libcanberra was found
-#  CANBERRA_LIBRARIES    - libcanberra libraries to link against
-#  CANBERRA_INCLUDE_DIRS - include path for libcanberra
-#
-# Copyright (c) 2012 Raphael Kubo da Costa <rakuco@FreeBSD.org>
-#
-# Redistribution and use is allowed according to the terms of the BSD license.
-# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
-
-find_package(PkgConfig)
-pkg_check_modules(PC_CANBERRA libcanberra)
-
-find_library(CANBERRA_LIBRARIES
-    NAMES canberra
-    HINTS ${PC_CANBERRA_LIBRARY_DIRS} ${PC_CANBERRA_LIBDIR}
-)
-
-find_path(CANBERRA_INCLUDE_DIRS
-    NAMES canberra.h
-    HINTS ${PC_CANBERRA_INCLUDE_DIRS} ${PC_CANBERRA_INCLUDEDIR}
-)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Canberra REQUIRED_VARS CANBERRA_LIBRARIES CANBERRA_INCLUDE_DIRS)
-
-mark_as_advanced(CANBERRA_LIBRARIES CANBERRA_INCLUDE_DIRS)