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Sun, Nov 10, 10:02

FindScotch.cmake
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#===============================================================================
# @file FindScotch.cmake
#
# @author Nicolas Richart <nicolas.richart@epfl.ch>
#
# @date creation: Fri Oct 24 2014
# @date last modification: Wed Jan 13 2016
#
# @brief The find_package file for Scotch
#
# @section LICENSE
#
# Copyright (©) 2015 EPFL (Ecole Polytechnique Fédérale de Lausanne) Laboratory
# (LSMS - Laboratoire de Simulation en Mécanique des Solides)
#
# Akantu 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, either version 3 of the License, or (at your option) any
# later version.
#
# Akantu 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.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Akantu. If not, see <http://www.gnu.org/licenses/>.
#
#===============================================================================
set(_SCOTCH_COMPONENTS "metis" "parmetis" "esmumps" "ptscotch")
if(NOT Scotch_FIND_COMPONENTS)
set(Scotch_FIND_COMPONENTS)
endif()
find_path(SCOTCH_INCLUDE_DIR scotch.h PATHS "${SCOTCH_DIR}" ENV SCOTCH_DIR
PATH_SUFFIXES include include/scotch
)
find_library(SCOTCH_LIBRARY scotch PATHS "${SCOTCH_DIR}" ENV SCOTCH_DIR PATH_SUFFIXES lib)
set(_scotch_test_dir "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}")
file(WRITE "${_scotch_test_dir}/scotch_test_code.c"
"#include <stdio.h>
#include <stdint.h>
#include <scotch.h>
int main() {
SCOTCH_Graph graph;
SCOTCH_graphInit(&graph);
return 0;
}
")
#===============================================================================
include(FindPackageHandleStandardArgs)
if(CMAKE_VERSION VERSION_GREATER 2.8.12)
if(SCOTCH_INCLUDE_DIR)
file(STRINGS ${SCOTCH_INCLUDE_DIR}/scotch.h _versions
REGEX "^#define\ +SCOTCH_(VERSION|RELEASE|PATCHLEVEL) .*")
foreach(_ver ${_versions})
string(REGEX MATCH "SCOTCH_(VERSION|RELEASE|PATCHLEVEL) *([0-9.]+)" _tmp "${_ver}")
set(_scotch_${CMAKE_MATCH_1} ${CMAKE_MATCH_2})
endforeach()
set(SCOTCH_VERSION "${_scotch_VERSION}.${_scotch_RELEASE}.${_scotch_PATCHLEVEL}" CACHE INTERNAL "")
endif()
find_package_handle_standard_args(Scotch
REQUIRED_VARS SCOTCH_LIBRARY SCOTCH_INCLUDE_DIR
VERSION_VAR SCOTCH_VERSION)
else()
find_package_handle_standard_args(Scotch DEFAULT_MSG
SCOTCH_LIBRARY SCOTCH_INCLUDE_DIR)
endif()
set(SCOTCH_LIBRARIES_ALL ${SCOTCH_LIBRARY})
try_compile(_scotch_compiles "${_scotch_test_dir}" SOURCES "${_scotch_test_dir}/scotch_test_code.c"
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${SCOTCH_INCLUDE_DIR}"
LINK_LIBRARIES ${SCOTCH_LIBRARY}
OUTPUT_VARIABLE _out)
get_filename_component(_scotch_hint "${SCOTCH_LIBRARY}" DIRECTORY)
if(SCOTCH_LIBRARY MATCHES ".*scotch.*${CMAKE_STATIC_LIBRARY_SUFFIX}")
# Assuming scotch was compiled as a static library
set(SCOTCH_LIBRARY_TYPE STATIC CACHE INTERNAL "" FORCE)
else()
set(SCOTCH_LIBRARY_TYPE SHARED CACHE INTERNAL "" FORCE)
endif()
if(NOT _scotch_compiles)
if(_out MATCHES "SCOTCH_errorPrint")
find_library(SCOTCH_LIBRARY_ERR scotcherr
HINTS ${_scotch_hint})
find_library(SCOTCH_LIBRARY_ERREXIT scotcherrexit
HINTS ${_scotch_hint})
if(NOT TARGET Scotch::err)
add_library(Scotch::err ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
if(NOT TARGET Scotch::errexit)
add_library(Scotch::errexit ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
set_target_properties(Scotch::errexit PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY_ERREXIT}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C")
set_target_properties(Scotch::err PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY_ERR}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
INTERFACE_LINK_LIBRARIES "Scotch::errexit")
mark_as_advanced(SCOTCH_LIBRARY_ERR
SCOTCH_LIBRARY_ERREXIT)
list(APPEND SCOTCH_LIBRARIES_ALL ${SCOTCH_LIBRARY_ERR} ${SCOTCH_LIBRARY_ERREXIT})
set(_scotch_link_lib INTERFACE_LINK_LIBRARIES "Scotch::err")
endif()
endif()
if(NOT TARGET Scotch::scotch)
add_library(Scotch::scotch ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
set_target_properties(Scotch::scotch PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
${_scotch_link_lib})
set(SCOTCH_LIBRARIES ${SCOTCH_LIBRARIES_ALL} CACHE INTERNAL "Libraries for Scotch" FORCE)
mark_as_advanced(SCOTCH_LIBRARY
SCOTCH_INCLUDE_DIR
SCOTCH_LIBRARIES)
if("${Scotch_FIND_COMPONENTS}" MATCHES "esmumps")
find_library(SCOTCH_LIBRARY_ESMUMPS esmumps HINTS ${_scotch_hint})
if(NOT TARGET Scotch::esmumps)
add_library(Scotch::esmumps ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
set_target_properties(Scotch::esmumps PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY_ESMUMPS}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C")
mark_as_advanced(SCOTCH_LIBRARY_ESMUMPS)
endif()
if("${Scotch_FIND_COMPONENTS}" MATCHES "metis")
find_library(SCOTCH_LIBRARY_METIS scotchmetis HINTS ${_scotch_hint})
if(NOT TARGET Scotch::metis)
add_library(Scotch::metis ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
set_target_properties(Scotch::metis PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY_METIS}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C")
mark_as_advanced(SCOTCH_LIBRARY_METIS)
endif()
if("${Scotch_FIND_COMPONENTS}" MATCHES "parmetis")
find_library(SCOTCH_LIBRARY_PARMETIS scotchparmetis HINTS ${_scotch_hint})
if(NOT TARGET Scotch::parmetis)
add_library(Scotch::parmetis ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
set_target_properties(Scotch::parmetis PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY_PARMETIS}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
INTERFACE_INCLUDE_DIRECTORIES "Scotch::metis")
mark_as_advanced(SCOTCH_LIBRARY_PARMETIS)
endif()
#
##===============================================================================
if("${Scotch_FIND_COMPONENTS}" MATCHES "ptscotch")
file(WRITE "${_scotch_test_dir}/ptscotch_test_code.c"
"#include <stdio.h>
#include <stdint.h>
#include <mpi.h>
#include <ptscotch.h>
int main() {
SCOTCH_Dgraph graph;
SCOTCH_dgraphInit(&graph, MPI_COMM_WORLD);
return 0;
}
")
find_package(MPI REQUIRED)
find_library(SCOTCH_LIBRARY_PTSCOTCH ptscotch HINTS ${_scotch_hint})
try_compile(_scotch_compiles "${_scotch_test_dir}" SOURCES "${_scotch_test_dir}/ptscotch_test_code.c"
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${SCOTCH_INCLUDE_DIR};${MPI_C_INCLUDE_PATH}"
LINK_LIBRARIES ${SCOTCH_LIBRARY_PTSCOTCH} ${MPI_C_LIBRARIES}
OUTPUT_VARIABLE _out)
if(NOT _scotch_compiles)
if(_out MATCHES "SCOTCH_archExit")
set(_scotch_link_lib INTERFACE_LINK_LIBRARIES "Scotch::scotch")
endif()
endif()
if(NOT TARGET Scotch::ptscotch)
add_library(Scotch::ptscotch ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
set_target_properties(Scotch::ptscotch PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY_PTSCOTCH}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
${_scotch_link_lib})
set(PTSCOTCH_LIBRARIES ${SCOTCH_LIBRARY_PTSCOTCH} ${SCOTCH_LIBRARIES} CACHE INTERNAL "Libraries for PT-Scotch" FORCE)
mark_as_advanced(SCOTCH_LIBRARY_PTSCOTCH
PTSCOTCH_LIBRARIES)
if("${Scotch_FIND_COMPONENTS}" MATCHES "esmumps")
find_library(SCOTCH_LIBRARY_PTESMUMPS ptesmumps
HINTS ${_scotch_hint} PATH_SUFFIXES lib .)
if(NOT TARGET Scotch::ptesmumps)
add_library(Scotch::ptesmumps ${SCOTCH_LIBRARY_TYPE} IMPORTED GLOBAL)
endif()
set_target_properties(Scotch::ptesmumps PROPERTIES
IMPORTED_LOCATION "${SCOTCH_LIBRARY_ESMUMPS}"
INTERFACE_INCLUDE_DIRECTORIES "${SCOTCH_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C")
mark_as_advanced(SCOTCH_LIBRARY_PTESMUMPS)
endif()
endif()

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