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# Copyright (C) 2011 Olaf Lenz
# Copyright (C) 2015 The ESPResSo Project
#
# This file is part of ESPResSo.
#
# ESPResSo 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.
#
# ESPResSo 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
# This cmake script is used to find out what myconfig header to use.
# It needs the variables
# heed the environment variable "ESPRESSO_MYCONFIG"
if (ENV{ESPRESSO_MYCONFIG})
set(MYCONFIG_FILE ENV{ESPRESSO_MYCONFIG})
else()
# test whether MYCONFIG_NAME is found in the object or source dir
find_file(MYCONFIG_FILE
NAMES ${MYCONFIG_NAME}
PATHS ${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR}
NO_DEFAULT_PATH)
# use the default if it is not
if(NOT MYCONFIG_FILE)
set(MYCONFIG_FILE ${CMAKE_SOURCE_DIR}/src/core/myconfig-default.hpp)
endif()
endif()
configure_file(${MYCONFIG_FILE} ${CMAKE_BINARY_DIR}/src/core/myconfig-final.hpp COPYONLY)
add_custom_target(myconfig DEPENDS ${CMAKE_BINARY_DIR}/src/core/myconfig-final.hpp)
message(STATUS "Config file: ${MYCONFIG_FILE}")
# Clear variable, otherwise cmake must be run by hand to detect myconfig
# Also prevents find_file from skipping when variable is already set
unset(MYCONFIG_FILE CACHE)
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