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https://gitlab.com/libeigen/eigen.git
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6fb3e5f176
Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style.
265 lines
8.7 KiB
CMake
265 lines
8.7 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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#
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# TODO: Add possibility to check for specific functions in the library
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#
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