mirror of
https://gitlab.com/libeigen/eigen.git
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266 lines
8.8 KiB
CMake
266 lines
8.8 KiB
CMake
###
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#
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# @copyright (c) 2009-2014 The University of Tennessee and The University
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# of Tennessee Research Foundation.
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# All rights reserved.
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# @copyright (c) 2012-2014 Inria. All rights reserved.
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# @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
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#
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###
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#
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# - Find METIS include dirs and libraries
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# Use this module by invoking find_package with the form:
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# find_package(METIS
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# [REQUIRED] # Fail with error if metis is not found
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# )
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#
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# This module finds headers and metis library.
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# Results are reported in variables:
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# METIS_FOUND - True if headers and requested libraries were found
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# METIS_INCLUDE_DIRS - metis include directories
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# METIS_LIBRARY_DIRS - Link directories for metis libraries
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# METIS_LIBRARIES - metis component libraries to be linked
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#
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# The user can give specific paths where to find the libraries adding cmake
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# options at configure (ex: cmake path/to/project -DMETIS_DIR=path/to/metis):
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# METIS_DIR - Where to find the base directory of metis
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# METIS_INCDIR - Where to find the header files
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# METIS_LIBDIR - Where to find the library files
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# The module can also look for the following environment variables if paths
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# are not given as cmake variable: METIS_DIR, METIS_INCDIR, METIS_LIBDIR
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#=============================================================================
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# Copyright 2012-2013 Inria
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# Copyright 2012-2013 Emmanuel Agullo
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# Copyright 2012-2013 Mathieu Faverge
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# Copyright 2012 Cedric Castagnede
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# Copyright 2013 Florent Pruvost
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file MORSE-Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of Morse, substitute the full
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# License text for the above reference.)
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if (NOT METIS_FOUND)
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set(METIS_DIR "" CACHE PATH "Installation directory of METIS library")
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if (NOT METIS_FIND_QUIETLY)
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message(STATUS "A cache variable, namely METIS_DIR, has been set to specify the install directory of METIS")
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endif()
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endif()
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# Looking for include
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# -------------------
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# Add system include paths to search include
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# ------------------------------------------
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unset(_inc_env)
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set(ENV_METIS_DIR "$ENV{METIS_DIR}")
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set(ENV_METIS_INCDIR "$ENV{METIS_INCDIR}")
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if(ENV_METIS_INCDIR)
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list(APPEND _inc_env "${ENV_METIS_INCDIR}")
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elseif(ENV_METIS_DIR)
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list(APPEND _inc_env "${ENV_METIS_DIR}")
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list(APPEND _inc_env "${ENV_METIS_DIR}/include")
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list(APPEND _inc_env "${ENV_METIS_DIR}/include/metis")
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else()
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if(WIN32)
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string(REPLACE ":" ";" _inc_env "$ENV{INCLUDE}")
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else()
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string(REPLACE ":" ";" _path_env "$ENV{INCLUDE}")
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list(APPEND _inc_env "${_path_env}")
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string(REPLACE ":" ";" _path_env "$ENV{C_INCLUDE_PATH}")
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list(APPEND _inc_env "${_path_env}")
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string(REPLACE ":" ";" _path_env "$ENV{CPATH}")
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list(APPEND _inc_env "${_path_env}")
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string(REPLACE ":" ";" _path_env "$ENV{INCLUDE_PATH}")
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list(APPEND _inc_env "${_path_env}")
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endif()
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endif()
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list(APPEND _inc_env "${CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES}")
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list(APPEND _inc_env "${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}")
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list(REMOVE_DUPLICATES _inc_env)
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# Try to find the metis header in the given paths
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# -------------------------------------------------
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# call cmake macro to find the header path
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if(METIS_INCDIR)
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set(METIS_metis.h_DIRS "METIS_metis.h_DIRS-NOTFOUND")
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find_path(METIS_metis.h_DIRS
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NAMES metis.h
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HINTS ${METIS_INCDIR})
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else()
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if(METIS_DIR)
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set(METIS_metis.h_DIRS "METIS_metis.h_DIRS-NOTFOUND")
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find_path(METIS_metis.h_DIRS
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NAMES metis.h
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HINTS ${METIS_DIR}
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PATH_SUFFIXES "include" "include/metis")
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else()
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set(METIS_metis.h_DIRS "METIS_metis.h_DIRS-NOTFOUND")
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find_path(METIS_metis.h_DIRS
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NAMES metis.h
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HINTS ${_inc_env})
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endif()
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endif()
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mark_as_advanced(METIS_metis.h_DIRS)
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# If found, add path to cmake variable
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# ------------------------------------
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if (METIS_metis.h_DIRS)
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set(METIS_INCLUDE_DIRS "${METIS_metis.h_DIRS}")
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else ()
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set(METIS_INCLUDE_DIRS "METIS_INCLUDE_DIRS-NOTFOUND")
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if(NOT METIS_FIND_QUIETLY)
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message(STATUS "Looking for metis -- metis.h not found")
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endif()
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endif()
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# Looking for lib
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# ---------------
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# Add system library paths to search lib
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# --------------------------------------
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unset(_lib_env)
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set(ENV_METIS_LIBDIR "$ENV{METIS_LIBDIR}")
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if(ENV_METIS_LIBDIR)
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list(APPEND _lib_env "${ENV_METIS_LIBDIR}")
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elseif(ENV_METIS_DIR)
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list(APPEND _lib_env "${ENV_METIS_DIR}")
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list(APPEND _lib_env "${ENV_METIS_DIR}/lib")
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else()
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if(WIN32)
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string(REPLACE ":" ";" _lib_env "$ENV{LIB}")
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else()
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if(APPLE)
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string(REPLACE ":" ";" _lib_env "$ENV{DYLD_LIBRARY_PATH}")
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else()
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string(REPLACE ":" ";" _lib_env "$ENV{LD_LIBRARY_PATH}")
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endif()
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list(APPEND _lib_env "${CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES}")
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list(APPEND _lib_env "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
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endif()
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endif()
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list(REMOVE_DUPLICATES _lib_env)
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# Try to find the metis lib in the given paths
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# ----------------------------------------------
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# call cmake macro to find the lib path
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if(METIS_LIBDIR)
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set(METIS_metis_LIBRARY "METIS_metis_LIBRARY-NOTFOUND")
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find_library(METIS_metis_LIBRARY
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NAMES metis
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HINTS ${METIS_LIBDIR})
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else()
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if(METIS_DIR)
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set(METIS_metis_LIBRARY "METIS_metis_LIBRARY-NOTFOUND")
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find_library(METIS_metis_LIBRARY
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NAMES metis
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HINTS ${METIS_DIR}
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PATH_SUFFIXES lib lib32 lib64)
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else()
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set(METIS_metis_LIBRARY "METIS_metis_LIBRARY-NOTFOUND")
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find_library(METIS_metis_LIBRARY
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NAMES metis
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HINTS ${_lib_env})
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endif()
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endif()
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mark_as_advanced(METIS_metis_LIBRARY)
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# If found, add path to cmake variable
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# ------------------------------------
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if (METIS_metis_LIBRARY)
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get_filename_component(metis_lib_path "${METIS_metis_LIBRARY}" PATH)
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# set cmake variables
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set(METIS_LIBRARIES "${METIS_metis_LIBRARY}")
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set(METIS_LIBRARY_DIRS "${metis_lib_path}")
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else ()
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set(METIS_LIBRARIES "METIS_LIBRARIES-NOTFOUND")
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set(METIS_LIBRARY_DIRS "METIS_LIBRARY_DIRS-NOTFOUND")
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if(NOT METIS_FIND_QUIETLY)
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message(STATUS "Looking for metis -- lib metis not found")
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endif()
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endif ()
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# check a function to validate the find
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if(METIS_LIBRARIES)
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set(REQUIRED_INCDIRS)
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set(REQUIRED_LIBDIRS)
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set(REQUIRED_LIBS)
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# METIS
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if (METIS_INCLUDE_DIRS)
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set(REQUIRED_INCDIRS "${METIS_INCLUDE_DIRS}")
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endif()
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if (METIS_LIBRARY_DIRS)
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set(REQUIRED_LIBDIRS "${METIS_LIBRARY_DIRS}")
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endif()
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set(REQUIRED_LIBS "${METIS_LIBRARIES}")
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# m
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find_library(M_LIBRARY NAMES m)
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mark_as_advanced(M_LIBRARY)
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if(M_LIBRARY)
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list(APPEND REQUIRED_LIBS "-lm")
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endif()
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# set required libraries for link
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set(CMAKE_REQUIRED_INCLUDES "${REQUIRED_INCDIRS}")
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set(CMAKE_REQUIRED_LIBRARIES)
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foreach(lib_dir ${REQUIRED_LIBDIRS})
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list(APPEND CMAKE_REQUIRED_LIBRARIES "-L${lib_dir}")
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endforeach()
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LIBS}")
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string(REGEX REPLACE "^ -" "-" CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
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# test link
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unset(METIS_WORKS CACHE)
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include(CheckFunctionExists)
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check_function_exists(METIS_NodeND METIS_WORKS)
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mark_as_advanced(METIS_WORKS)
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if(NOT METIS_WORKS)
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if(NOT METIS_FIND_QUIETLY)
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message(STATUS "Looking for METIS : test of METIS_NodeND with METIS library fails")
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message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
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message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
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message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
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endif()
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endif()
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set(CMAKE_REQUIRED_INCLUDES)
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set(CMAKE_REQUIRED_FLAGS)
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set(CMAKE_REQUIRED_LIBRARIES)
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endif()
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if (METIS_LIBRARIES)
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list(GET METIS_LIBRARIES 0 first_lib)
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get_filename_component(first_lib_path "${first_lib}" PATH)
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if (${first_lib_path} MATCHES "/lib(32|64)?$")
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string(REGEX REPLACE "/lib(32|64)?$" "" not_cached_dir "${first_lib_path}")
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set(METIS_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of METIS library" FORCE)
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else()
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set(METIS_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of METIS library" FORCE)
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endif()
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endif()
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mark_as_advanced(METIS_DIR)
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mark_as_advanced(METIS_DIR_FOUND)
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# check that METIS has been found
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# ---------------------------------
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(METIS DEFAULT_MSG
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METIS_LIBRARIES
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METIS_WORKS
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METIS_INCLUDE_DIRS)
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#
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# TODO: Add possibility to check for specific functions in the library
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#
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