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# Copyright 2010-2011 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio 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, or (at your option)
# any later version.
#
# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
if(DEFINED __INCLUDED_GR_COMPONENT_CMAKE)
return()
endif()
set(__INCLUDED_GR_COMPONENT_CMAKE TRUE)
set(_gr_enabled_components "" CACHE INTERNAL "" FORCE)
set(_gr_disabled_components "" CACHE INTERNAL "" FORCE)
if(NOT DEFINED ENABLE_DEFAULT)
set(ENABLE_DEFAULT ON)
message(STATUS "")
message(STATUS "The build system will automatically enable all components.")
message(STATUS "Use -DENABLE_DEFAULT=OFF to disable components by default.")
endif()
########################################################################
# Register a component into the system
# - name: canonical component name
# - var: variable for enabled status
# - argn: list of dependencies
########################################################################
function(GR_REGISTER_COMPONENT name var)
include(CMakeDependentOption)
message(STATUS "")
message(STATUS "Configuring ${name} support...")
foreach(dep ${ARGN})
message(STATUS " Dependency ${dep} = ${${dep}}")
endforeach(dep)
#if the user set the var to force, we note this
if("${${var}}" STREQUAL "FORCE")
set(${var} ON)
set(var_force TRUE)
else()
set(var_force FALSE)
endif()
#rewrite the dependency list so that deps that are also components use the cached version
unset(comp_deps)
foreach(dep ${ARGN})
list(FIND _gr_enabled_components ${dep} dep_enb_index)
list(FIND _gr_disabled_components ${dep} dep_dis_index)
if (${dep_enb_index} EQUAL -1 AND ${dep_dis_index} EQUAL -1)
list(APPEND comp_deps ${dep})
else()
list(APPEND comp_deps ${dep}_cached) #is a component, use cached version
endif()
endforeach(dep)
#setup the dependent option for this component
CMAKE_DEPENDENT_OPTION(${var} "enable ${name} support" ${ENABLE_DEFAULT} "${comp_deps}" OFF)
set(${var} "${${var}}" PARENT_SCOPE)
set(${var}_cached "${${var}}" CACHE INTERNAL "" FORCE)
#force was specified, but the dependencies were not met
if(NOT ${var} AND var_force)
message(FATAL_ERROR "user force-enabled ${name} but configuration checked failed")
endif()
#append the component into one of the lists
if(${var})
message(STATUS " Enabling ${name} support.")
list(APPEND _gr_enabled_components ${name})
else(${var})
message(STATUS " Disabling ${name} support.")
list(APPEND _gr_disabled_components ${name})
endif(${var})
message(STATUS " Override with -D${var}=ON/OFF")
#make components lists into global variables
set(_gr_enabled_components ${_gr_enabled_components} CACHE INTERNAL "" FORCE)
set(_gr_disabled_components ${_gr_disabled_components} CACHE INTERNAL "" FORCE)
endfunction(GR_REGISTER_COMPONENT)
########################################################################
# Print the registered component summary
########################################################################
function(GR_PRINT_COMPONENT_SUMMARY)
message(STATUS "")
message(STATUS "######################################################")
message(STATUS "# gr-osmosdr enabled components ")
message(STATUS "######################################################")
foreach(comp ${_gr_enabled_components})
message(STATUS " * ${comp}")
endforeach(comp)
message(STATUS "")
message(STATUS "######################################################")
message(STATUS "# gr-osmosdr disabled components ")
message(STATUS "######################################################")
foreach(comp ${_gr_disabled_components})
message(STATUS " * ${comp}")
endforeach(comp)
message(STATUS "")
endfunction(GR_PRINT_COMPONENT_SUMMARY)
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