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#
# Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
#
# This file is part of Orfeo Toolbox
#
# https://www.orfeo-toolbox.org/
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#-----------------------------------------------------------------------------
# Private helper macros.
macro(_otb_module_use_recurse mod)
if(NOT ${dep}_USED)
set(${mod}_USED 1)
otb_module_load("${mod}")
foreach(dep IN LISTS ${mod}_DEPENDS)
_otb_module_use_recurse(${dep})
endforeach()
if(${mod}_INCLUDE_DIRS)
include_directories(${${mod}_INCLUDE_DIRS})
endif()
if(${mod}_LIBRARY_DIRS)
link_directories(${${mod}_LIBRARY_DIRS})
endif()
endif()
endmacro()
macro(_otb_module_config_recurse ns mod)
if(NOT _${ns}_${mod}_USED)
set(_${ns}_${mod}_USED 1)
list(APPEND _${ns}_USED_MODULES ${mod})
otb_module_load("${mod}")
list(APPEND ${ns}_LIBRARIES ${${mod}_LIBRARIES})
list(APPEND ${ns}_INCLUDE_DIRS ${${mod}_INCLUDE_DIRS})
list(APPEND ${ns}_LIBRARY_DIRS ${${mod}_LIBRARY_DIRS})
foreach(dep IN LISTS ${mod}_DEPENDS)
_otb_module_config_recurse("${ns}" "${dep}")
endforeach()
endif()
endmacro()
#-----------------------------------------------------------------------------
# Public interface macros.
# otb_module_load(<module>)
#
# Loads variables describing the given module:
# <module>_LOADED = True if the module has been loaded
# <module>_DEPENDS = List of dependencies on other modules
# <module>_LIBRARIES = Libraries to link
# <module>_INCLUDE_DIRS = Header search path
# <module>_LIBRARY_DIRS = Library search path (for outside dependencies)
macro(otb_module_load mod)
if(NOT ${mod}_LOADED)
include("${OTB_MODULES_DIR}/${mod}.cmake" OPTIONAL)
if(NOT ${mod}_LOADED)
message(FATAL_ERROR "No such module: \"${mod}\"")
endif()
endif()
endmacro()
# otb_module_config(<namespace> [modules...])
#
# Configures variables describing the given modules and their dependencies:
# <namespace>_LIBRARIES = Libraries to link
# <namespace>_INCLUDE_DIRS = Header search path
# <namespace>_LIBRARY_DIRS = Library search path (for outside dependencies)
# Do not name a module as the namespace.
macro(otb_module_config ns)
set(${ns}_LIBRARIES "")
set(${ns}_INCLUDE_DIRS "")
set(${ns}_LIBRARY_DIRS "")
set(_${ns}_USED_MODULES "")
foreach(mod ${ARGN})
_otb_module_config_recurse("${ns}" "${mod}")
endforeach()
foreach(mod ${_${ns}_USED_MODULES})
unset(_${ns}_${mod}_USED)
endforeach()
unset(_${ns}_USED_MODULES)
foreach(v ${ns}_LIBRARIES ${ns}_INCLUDE_DIRS ${ns}_LIBRARY_DIRS)
if(${v})
list(REMOVE_DUPLICATES ${v})
endif()
endforeach()
endmacro()
# otb_module_use([modules...])
#
# Adds include directories and link directories for the given modules and
# their dependencies.
macro(otb_module_use)
foreach(mod ${ARGN})
_otb_module_use_recurse("${mod}")
endforeach()
endmacro()
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