eigen/cmake/FindMetis.cmake

60 lines
2.0 KiB
CMake

# Pastix requires METIS or METIS (partitioning and reordering tools)
if (METIS_INCLUDES AND METIS_LIBRARIES)
set(METIS_FIND_QUIETLY TRUE)
endif (METIS_INCLUDES AND METIS_LIBRARIES)
find_path(METIS_INCLUDES
NAMES
metis.h
PATHS
$ENV{METISDIR}
${INCLUDE_INSTALL_DIR}
PATH_SUFFIXES
.
metis
include
)
macro(_metis_check_version)
file(READ "${METIS_INCLUDES}/metis.h" _metis_version_header)
string(REGEX MATCH "define[ \t]+METIS_VER_MAJOR[ \t]+([0-9]+)" _metis_major_version_match "${_metis_version_header}")
set(METIS_MAJOR_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define[ \t]+METIS_VER_MINOR[ \t]+([0-9]+)" _metis_minor_version_match "${_metis_version_header}")
set(METIS_MINOR_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define[ \t]+METIS_VER_SUBMINOR[ \t]+([0-9]+)" _metis_subminor_version_match "${_metis_version_header}")
set(METIS_SUBMINOR_VERSION "${CMAKE_MATCH_1}")
if(NOT METIS_MAJOR_VERSION)
message(STATUS "Could not determine Metis version. Assuming version 4.0.0")
set(METIS_VERSION 4.0.0)
else()
set(METIS_VERSION ${METIS_MAJOR_VERSION}.${METIS_MINOR_VERSION}.${METIS_SUBMINOR_VERSION})
endif()
if(${METIS_VERSION} VERSION_LESS ${Metis_FIND_VERSION})
set(METIS_VERSION_OK FALSE)
else()
set(METIS_VERSION_OK TRUE)
endif()
if(NOT METIS_VERSION_OK)
message(STATUS "Metis version ${METIS_VERSION} found in ${METIS_INCLUDES}, "
"but at least version ${Metis_FIND_VERSION} is required")
endif(NOT METIS_VERSION_OK)
endmacro(_metis_check_version)
if(METIS_INCLUDES AND Metis_FIND_VERSION)
_metis_check_version()
else()
set(METIS_VERSION_OK TRUE)
endif()
find_library(METIS_LIBRARIES metis PATHS $ENV{METISDIR} ${LIB_INSTALL_DIR} PATH_SUFFIXES lib)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(METIS DEFAULT_MSG
METIS_INCLUDES METIS_LIBRARIES METIS_VERSION_OK)
mark_as_advanced(METIS_INCLUDES METIS_LIBRARIES)