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# ***************************************************************************
# * *
# * Copyright : (C) 2010 The University of Toronto *
# * email : netterfield@astro.utoronto.ca *
# * *
# * Copyright : (C) 2010 Peter Kümmel *
# * email : syntheticpp@gmx.net *
# * *
# * This program 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 2 of the License, or *
# * (at your option) any later version. *
# * *
# ***************************************************************************
macro(merged_files_build _allinone_name _list)
set(_file_list ${_allinone_name}_files)
set(_file_const ${CMAKE_CURRENT_BINARY_DIR}/${_allinone_name}_const.cpp)
set(_file_touched ${CMAKE_CURRENT_BINARY_DIR}/${_allinone_name}_touched.cpp)
# don't touch existing or non-empty file,
# so a cmake re-run doesn't touch all created files
set(_rebuild_file_const 0)
if (NOT EXISTS ${_file_const})
set(_rebuild_file_const 1)
else()
FILE(READ ${_file_const} _file_content)
if (NOT _file_content)
set(_rebuild_file_const 1)
endif()
endif()
set(_rebuild_file_touched 0)
if (NOT EXISTS ${_file_touched})
set(_rebuild_file_touched 1)
else()
FILE(READ ${_file_touched} _file_content)
if (NOT _file_content)
set(_rebuild_file_touched 1)
endif()
endif()
if (merged_files_rebuild)
set(_rebuild_file_const 1)
set(_rebuild_file_touched 1)
endif()
if (_rebuild_file_const)
file(WRITE ${_file_const} "// autogenerated file \n//\n")
file(APPEND ${_file_const} "// * clear or delete this file to build it again by cmake \n//\n\n")
endif()
if (_rebuild_file_touched)
file(WRITE ${_file_touched} "// autogenerated file \n//\n")
file(APPEND ${_file_touched} "// * clear or delete this file to build it again by cmake \n//\n")
file(APPEND ${_file_touched} "// * don't touch this file \n//\n\n")
file(APPEND ${_file_touched} "#define DONT_INCLUDE_CONST_FILES\n")
file(APPEND ${_file_touched} "#include \"${_file_const}\"\n\n\n")
endif()
set(${_file_list} ${_file_const} ${_file_touched})
foreach (_current_FILE ${${_list}})
get_filename_component(_abs_FILE ${_current_FILE} ABSOLUTE)
GET_FILENAME_COMPONENT(_file_name ${_abs_FILE} NAME_WE)
STRING(REGEX REPLACE "-" "_" _file_name "${_file_name}")
set(__macro_name ${_file_name}___ASSUME_CONST)
if (_rebuild_file_const)
file(APPEND ${_file_const} "#define ${__macro_name}\n")
file(APPEND ${_file_const} "#if defined(${__macro_name}) && !defined(DONT_INCLUDE_CONST_FILES)\n")
file(APPEND ${_file_const} "#include \"${_abs_FILE}\"\n")
file(APPEND ${_file_const} "#endif\n\n")
endif()
if (_rebuild_file_touched)
file(APPEND ${_file_touched} "#ifndef ${__macro_name}\n")
file(APPEND ${_file_touched} "#include \"${_abs_FILE}\"\n")
file(APPEND ${_file_touched} "#endif\n\n")
endif()
endforeach (_current_FILE)
endmacro()
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