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#
# $Id$
#
# Copyright (c) 1991-2019 by P. Wessel, W. H. F. Smith, R. Scharroo, J. Luis and F. Wobbe
# See LICENSE.TXT file for copying and redistribution conditions.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; version 3 or any later version.
#
# This program 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 Lesser General Public License for more details.
#
# Contact info: gmt.soest.hawaii.edu
#-------------------------------------------------------------------------------
# Macro definition
if(NOT DEFINED _COPY_DIR_IF_DIFFERENT_CMAKE_)
set(_COPY_DIR_IF_DIFFERENT_CMAKE_ "DEFINED")
# copy_dir_if_different (TARGET SOURCE DEST)
# example: copy_dir_if_different (copy_target srcdir/ destdir)
macro (COPY_DIR_IF_DIFFERENT _TARGET _SOURCE _DEST)
file(RELATIVE_PATH _rel_source ${CMAKE_SOURCE_DIR} ${_SOURCE})
add_custom_target (${_TARGET}
COMMAND ${CMAKE_COMMAND}
-D SOURCE=${_SOURCE}
-D DESTINATION=${_DEST}
-D INVOKE_COPY_DIR_IF_DIFFERENT=TRUE
-D CMAKE_MODULE_PATH=${CMAKE_MODULE_PATH}
-P ${CMAKE_MODULE_PATH}/CopyDirIfDifferent.cmake
COMMENT "Copying ${_rel_source} ..."
DEPENDS ${_SOURCE})
endmacro (COPY_DIR_IF_DIFFERENT)
endif(NOT DEFINED _COPY_DIR_IF_DIFFERENT_CMAKE_)
# Copy source directory recursively
# Preserve file permissions and timestamps
if (DEFINED INVOKE_COPY_DIR_IF_DIFFERENT)
file (COPY ${SOURCE} DESTINATION ${DESTINATION})
endif (DEFINED INVOKE_COPY_DIR_IF_DIFFERENT)
# vim: textwidth=78 noexpandtab tabstop=2 softtabstop=2 shiftwidth=2
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