strawberry-audio-player-win.../cmake/AddEngine.cmake

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2018-02-27 18:06:05 +01:00
# Strawberry Music Player
# Copyright 2013, Jonas Kvinge <jonas@strawbs.net>
#
# Strawberry is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Strawberry is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
macro(add_engine engine_lower engine_upper lib_list src_list inc_list enabled)
#message(STATUS "ADD ENGINE: ${engine_lower} ${engine_upper} ${lib_list} ${src_list} ${inc_list} ${enabled}")
#set(ENGINE_LIBRARIES "")
# recreate list
set(lib_list ${lib_list})
#list(GET lib_list 0 name)
# add a user selectable build option
option(ENGINE_${engine_upper}_ENABLED "enable engine ${engine_upper}" ${enabled})
# check if engine is enabled and needed librares are available
if(ENGINE_${engine_upper}_ENABLED)
# check for all needed libraries
foreach(lib ${lib_list})
#pkg_check_modules(${lib} ${lib})
if (NOT ${lib}_FOUND MATCHES 1)
set(ENGINE_${engine_upper}_LIB_MISSING TRUE)
endif(NOT ${lib}_FOUND MATCHES 1)
endforeach(lib ${lib_list})
if(ENGINE_${engine_upper}_LIB_MISSING)
set(ENGINES_MISSING "${ENGINES_MISSING} ${engine_lower}")
#set("HAVE_${engine_upper}" 0 CACHE INTERNAL ${engine_upper})
set("HAVE_${engine_upper}" OFF)
else(ENGINE_${engine_upper}_LIB_MISSING)
# add define -DHAVE_<engine> so we can clutter the code with #ifdefs
#set("HAVE_${engine_upper}" 1 CACHE INTERNAL ${engine_upper})
set("HAVE_${engine_upper}" ON)
# add sources and headers
list(APPEND SOURCES ${src_list})
list(APPEND HEADERS ${inc_list})
# add libraries to link against
foreach(lib ${lib_list})
#set(ENGINE_LIBRARIES ${ENGINE_LIBRARIES} ${${lib}_LIBRARIES} CACHE INTERNAL libraries)
set(ENGINE_LIBRARIES ${ENGINE_LIBRARIES} ${${lib}_LIBRARIES})
endforeach(lib ${lib_list})
# add to list of enabled engines
set(ENGINES_ENABLED "${ENGINES_ENABLED} ${engine_lower}")
endif(ENGINE_${engine_upper}_LIB_MISSING)
else(ENGINE_${engine_upper}_ENABLED)
set(ENGINES_DISABLED "${ENGINES_DISABLED} ${engine_lower}")
#set("HAVE_${engine_upper}" 0 CACHE INTERNAL ${engine_upper})
set("HAVE_${engine_upper}" OFF)
endif(ENGINE_${engine_upper}_ENABLED)
endmacro(add_engine engine_lower engine_upper lib_list src_list inc_list enabled)
# print engines to be built
macro(print_engines)
if(ENGINES_ENABLED)
message(STATUS "Building engines:${ENGINES_ENABLED}")
endif(ENGINES_ENABLED)
if(ENGINES_DISABLED)
message(STATUS "Disabled engines:${ENGINES_DISABLED}")
endif(ENGINES_DISABLED)
if(ENGINES_MISSING)
message(STATUS "Missing engines:${ENGINES_MISSING}")
endif(ENGINES_MISSING)
#message(STATUS "Engine libraries:${ENGINE_LIBRARIES}")
# need at least 1 engine
if(NOT ENGINES_ENABLED)
message(FATAL_ERROR "No engine enabled!")
endif(NOT ENGINES_ENABLED)
endmacro(print_engines)