mirror of
https://gitlab.com/libeigen/eigen.git
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424 lines
14 KiB
CMake
424 lines
14 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) 2012-2016 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 PTSCOTCH include dirs and libraries
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# Use this module by invoking find_package with the form:
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# find_package(PTSCOTCH
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# [REQUIRED] # Fail with error if ptscotch is not found
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# [COMPONENTS <comp1> <comp2> ...] # dependencies
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# )
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#
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# PTSCOTCH depends on the following libraries:
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# - Threads
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# - MPI
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#
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# COMPONENTS can be some of the following:
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# - ESMUMPS: to activate detection of PT-Scotch with the esmumps interface
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#
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# This module finds headers and ptscotch library.
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# Results are reported in variables:
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# PTSCOTCH_FOUND - True if headers and requested libraries were found
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# PTSCOTCH_LINKER_FLAGS - list of required linker flags (excluding -l and -L)
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# PTSCOTCH_INCLUDE_DIRS - ptscotch include directories
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# PTSCOTCH_LIBRARY_DIRS - Link directories for ptscotch libraries
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# PTSCOTCH_LIBRARIES - ptscotch component libraries to be linked
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# PTSCOTCH_INCLUDE_DIRS_DEP - ptscotch + dependencies include directories
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# PTSCOTCH_LIBRARY_DIRS_DEP - ptscotch + dependencies link directories
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# PTSCOTCH_LIBRARIES_DEP - ptscotch libraries + dependencies
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# PTSCOTCH_INTSIZE - Number of octets occupied by a SCOTCH_Num
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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 -DPTSCOTCH=path/to/ptscotch):
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# PTSCOTCH_DIR - Where to find the base directory of ptscotch
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# PTSCOTCH_INCDIR - Where to find the header files
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# PTSCOTCH_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: PTSCOTCH_DIR, PTSCOTCH_INCDIR, PTSCOTCH_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 2013-2016 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 PTSCOTCH_FOUND)
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set(PTSCOTCH_DIR "" CACHE PATH "Installation directory of PTSCOTCH library")
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if (NOT PTSCOTCH_FIND_QUIETLY)
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message(STATUS "A cache variable, namely PTSCOTCH_DIR, has been set to specify the install directory of PTSCOTCH")
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endif()
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endif()
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# Set the version to find
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set(PTSCOTCH_LOOK_FOR_ESMUMPS OFF)
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if( PTSCOTCH_FIND_COMPONENTS )
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foreach( component ${PTSCOTCH_FIND_COMPONENTS} )
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if (${component} STREQUAL "ESMUMPS")
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# means we look for esmumps library
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set(PTSCOTCH_LOOK_FOR_ESMUMPS ON)
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endif()
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endforeach()
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endif()
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# PTSCOTCH depends on Threads, try to find it
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if (NOT THREADS_FOUND)
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if (PTSCOTCH_FIND_REQUIRED)
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find_package(Threads REQUIRED)
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else()
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find_package(Threads)
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endif()
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endif()
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# PTSCOTCH depends on MPI, try to find it
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if (NOT MPI_FOUND)
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if (PTSCOTCH_FIND_REQUIRED)
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find_package(MPI REQUIRED)
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else()
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find_package(MPI)
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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_PTSCOTCH_DIR "$ENV{PTSCOTCH_DIR}")
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set(ENV_PTSCOTCH_INCDIR "$ENV{PTSCOTCH_INCDIR}")
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if(ENV_PTSCOTCH_INCDIR)
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list(APPEND _inc_env "${ENV_PTSCOTCH_INCDIR}")
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elseif(ENV_PTSCOTCH_DIR)
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list(APPEND _inc_env "${ENV_PTSCOTCH_DIR}")
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list(APPEND _inc_env "${ENV_PTSCOTCH_DIR}/include")
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list(APPEND _inc_env "${ENV_PTSCOTCH_DIR}/include/ptscotch")
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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 ptscotch header in the given paths
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# -------------------------------------------------
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set(PTSCOTCH_hdrs_to_find "ptscotch.h;scotch.h")
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# call cmake macro to find the header path
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if(PTSCOTCH_INCDIR)
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foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find})
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set(PTSCOTCH_${ptscotch_hdr}_DIRS "PTSCOTCH_${ptscotch_hdr}_DIRS-NOTFOUND")
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find_path(PTSCOTCH_${ptscotch_hdr}_DIRS
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NAMES ${ptscotch_hdr}
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HINTS ${PTSCOTCH_INCDIR})
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mark_as_advanced(PTSCOTCH_${ptscotch_hdr}_DIRS)
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endforeach()
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else()
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if(PTSCOTCH_DIR)
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foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find})
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set(PTSCOTCH_${ptscotch_hdr}_DIRS "PTSCOTCH_${ptscotch_hdr}_DIRS-NOTFOUND")
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find_path(PTSCOTCH_${ptscotch_hdr}_DIRS
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NAMES ${ptscotch_hdr}
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HINTS ${PTSCOTCH_DIR}
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PATH_SUFFIXES "include" "include/scotch")
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mark_as_advanced(PTSCOTCH_${ptscotch_hdr}_DIRS)
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endforeach()
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else()
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foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find})
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set(PTSCOTCH_${ptscotch_hdr}_DIRS "PTSCOTCH_${ptscotch_hdr}_DIRS-NOTFOUND")
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find_path(PTSCOTCH_${ptscotch_hdr}_DIRS
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NAMES ${ptscotch_hdr}
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HINTS ${_inc_env}
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PATH_SUFFIXES "scotch")
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mark_as_advanced(PTSCOTCH_${ptscotch_hdr}_DIRS)
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endforeach()
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endif()
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endif()
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# If found, add path to cmake variable
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# ------------------------------------
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foreach(ptscotch_hdr ${PTSCOTCH_hdrs_to_find})
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if (PTSCOTCH_${ptscotch_hdr}_DIRS)
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list(APPEND PTSCOTCH_INCLUDE_DIRS "${PTSCOTCH_${ptscotch_hdr}_DIRS}")
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else ()
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set(PTSCOTCH_INCLUDE_DIRS "PTSCOTCH_INCLUDE_DIRS-NOTFOUND")
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if (NOT PTSCOTCH_FIND_QUIETLY)
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message(STATUS "Looking for ptscotch -- ${ptscotch_hdr} not found")
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endif()
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endif()
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endforeach()
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list(REMOVE_DUPLICATES PTSCOTCH_INCLUDE_DIRS)
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# Looking for lib
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# ---------------
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# Add system library paths to search lib
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# --------------------------------------
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unset(_lib_env)
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set(ENV_PTSCOTCH_LIBDIR "$ENV{PTSCOTCH_LIBDIR}")
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if(ENV_PTSCOTCH_LIBDIR)
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list(APPEND _lib_env "${ENV_PTSCOTCH_LIBDIR}")
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elseif(ENV_PTSCOTCH_DIR)
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list(APPEND _lib_env "${ENV_PTSCOTCH_DIR}")
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list(APPEND _lib_env "${ENV_PTSCOTCH_DIR}/lib")
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else()
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if(WIN32)
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string(REPLACE ":" ";" _lib_env "$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 ptscotch lib in the given paths
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# ----------------------------------------------
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set(PTSCOTCH_libs_to_find "ptscotch;ptscotcherr")
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if (PTSCOTCH_LOOK_FOR_ESMUMPS)
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list(INSERT PTSCOTCH_libs_to_find 0 "ptesmumps")
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list(APPEND PTSCOTCH_libs_to_find "esmumps" )
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endif()
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list(APPEND PTSCOTCH_libs_to_find "scotch;scotcherr")
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# call cmake macro to find the lib path
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if(PTSCOTCH_LIBDIR)
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foreach(ptscotch_lib ${PTSCOTCH_libs_to_find})
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set(PTSCOTCH_${ptscotch_lib}_LIBRARY "PTSCOTCH_${ptscotch_lib}_LIBRARY-NOTFOUND")
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find_library(PTSCOTCH_${ptscotch_lib}_LIBRARY
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NAMES ${ptscotch_lib}
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HINTS ${PTSCOTCH_LIBDIR})
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endforeach()
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else()
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if(PTSCOTCH_DIR)
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foreach(ptscotch_lib ${PTSCOTCH_libs_to_find})
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set(PTSCOTCH_${ptscotch_lib}_LIBRARY "PTSCOTCH_${ptscotch_lib}_LIBRARY-NOTFOUND")
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find_library(PTSCOTCH_${ptscotch_lib}_LIBRARY
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NAMES ${ptscotch_lib}
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HINTS ${PTSCOTCH_DIR}
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PATH_SUFFIXES lib lib32 lib64)
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endforeach()
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else()
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foreach(ptscotch_lib ${PTSCOTCH_libs_to_find})
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set(PTSCOTCH_${ptscotch_lib}_LIBRARY "PTSCOTCH_${ptscotch_lib}_LIBRARY-NOTFOUND")
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find_library(PTSCOTCH_${ptscotch_lib}_LIBRARY
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NAMES ${ptscotch_lib}
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HINTS ${_lib_env})
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endforeach()
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endif()
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endif()
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set(PTSCOTCH_LIBRARIES "")
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set(PTSCOTCH_LIBRARY_DIRS "")
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# If found, add path to cmake variable
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# ------------------------------------
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foreach(ptscotch_lib ${PTSCOTCH_libs_to_find})
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if (PTSCOTCH_${ptscotch_lib}_LIBRARY)
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get_filename_component(${ptscotch_lib}_lib_path "${PTSCOTCH_${ptscotch_lib}_LIBRARY}" PATH)
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# set cmake variables
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list(APPEND PTSCOTCH_LIBRARIES "${PTSCOTCH_${ptscotch_lib}_LIBRARY}")
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list(APPEND PTSCOTCH_LIBRARY_DIRS "${${ptscotch_lib}_lib_path}")
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else ()
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list(APPEND PTSCOTCH_LIBRARIES "${PTSCOTCH_${ptscotch_lib}_LIBRARY}")
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if (NOT PTSCOTCH_FIND_QUIETLY)
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message(STATUS "Looking for ptscotch -- lib ${ptscotch_lib} not found")
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endif()
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endif ()
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mark_as_advanced(PTSCOTCH_${ptscotch_lib}_LIBRARY)
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endforeach()
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list(REMOVE_DUPLICATES PTSCOTCH_LIBRARY_DIRS)
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# check a function to validate the find
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if(PTSCOTCH_LIBRARIES)
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set(REQUIRED_LDFLAGS)
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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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# PTSCOTCH
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if (PTSCOTCH_INCLUDE_DIRS)
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set(REQUIRED_INCDIRS "${PTSCOTCH_INCLUDE_DIRS}")
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endif()
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if (PTSCOTCH_LIBRARY_DIRS)
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set(REQUIRED_LIBDIRS "${PTSCOTCH_LIBRARY_DIRS}")
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endif()
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set(REQUIRED_LIBS "${PTSCOTCH_LIBRARIES}")
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# MPI
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if (MPI_FOUND)
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if (MPI_C_INCLUDE_PATH)
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list(APPEND CMAKE_REQUIRED_INCLUDES "${MPI_C_INCLUDE_PATH}")
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endif()
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if (MPI_C_LINK_FLAGS)
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if (${MPI_C_LINK_FLAGS} MATCHES " -")
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string(REGEX REPLACE " -" "-" MPI_C_LINK_FLAGS ${MPI_C_LINK_FLAGS})
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endif()
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list(APPEND REQUIRED_LDFLAGS "${MPI_C_LINK_FLAGS}")
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endif()
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list(APPEND REQUIRED_LIBS "${MPI_C_LIBRARIES}")
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endif()
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# THREADS
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if(CMAKE_THREAD_LIBS_INIT)
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list(APPEND REQUIRED_LIBS "${CMAKE_THREAD_LIBS_INIT}")
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endif()
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set(Z_LIBRARY "Z_LIBRARY-NOTFOUND")
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find_library(Z_LIBRARY NAMES z)
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mark_as_advanced(Z_LIBRARY)
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if(Z_LIBRARY)
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list(APPEND REQUIRED_LIBS "-lz")
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endif()
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set(M_LIBRARY "M_LIBRARY-NOTFOUND")
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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(RT_LIBRARY "RT_LIBRARY-NOTFOUND")
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find_library(RT_LIBRARY NAMES rt)
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mark_as_advanced(RT_LIBRARY)
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if(RT_LIBRARY)
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list(APPEND REQUIRED_LIBS "-lrt")
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endif()
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# set required libraries for link
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set(CMAKE_REQUIRED_INCLUDES "${REQUIRED_INCDIRS}")
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set(CMAKE_REQUIRED_LIBRARIES)
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LDFLAGS}")
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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 "${REQUIRED_LIBS}")
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list(APPEND CMAKE_REQUIRED_FLAGS "${REQUIRED_FLAGS}")
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string(REGEX REPLACE "^ -" "-" CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
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# test link
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unset(PTSCOTCH_WORKS CACHE)
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include(CheckFunctionExists)
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check_function_exists(SCOTCH_dgraphInit PTSCOTCH_WORKS)
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mark_as_advanced(PTSCOTCH_WORKS)
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if(PTSCOTCH_WORKS)
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# save link with dependencies
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set(PTSCOTCH_LIBRARIES_DEP "${REQUIRED_LIBS}")
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set(PTSCOTCH_LIBRARY_DIRS_DEP "${REQUIRED_LIBDIRS}")
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set(PTSCOTCH_INCLUDE_DIRS_DEP "${REQUIRED_INCDIRS}")
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set(PTSCOTCH_LINKER_FLAGS "${REQUIRED_LDFLAGS}")
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list(REMOVE_DUPLICATES PTSCOTCH_LIBRARY_DIRS_DEP)
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list(REMOVE_DUPLICATES PTSCOTCH_INCLUDE_DIRS_DEP)
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list(REMOVE_DUPLICATES PTSCOTCH_LINKER_FLAGS)
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else()
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if(NOT PTSCOTCH_FIND_QUIETLY)
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message(STATUS "Looking for PTSCOTCH : test of SCOTCH_dgraphInit with PTSCOTCH library fails")
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message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
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message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
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message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
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endif()
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endif()
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set(CMAKE_REQUIRED_INCLUDES)
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set(CMAKE_REQUIRED_FLAGS)
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set(CMAKE_REQUIRED_LIBRARIES)
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endif(PTSCOTCH_LIBRARIES)
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if (PTSCOTCH_LIBRARIES)
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list(GET PTSCOTCH_LIBRARIES 0 first_lib)
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get_filename_component(first_lib_path "${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(PTSCOTCH_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of PTSCOTCH library" FORCE)
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else()
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set(PTSCOTCH_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of PTSCOTCH library" FORCE)
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endif()
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endif()
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mark_as_advanced(PTSCOTCH_DIR)
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mark_as_advanced(PTSCOTCH_DIR_FOUND)
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# Check the size of SCOTCH_Num
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# ---------------------------------
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set(CMAKE_REQUIRED_INCLUDES ${PTSCOTCH_INCLUDE_DIRS})
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include(CheckCSourceRuns)
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#stdio.h and stdint.h should be included by scotch.h directly
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set(PTSCOTCH_C_TEST_SCOTCH_Num_4 "
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#include <stdio.h>
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#include <stdint.h>
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#include <ptscotch.h>
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int main(int argc, char **argv) {
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if (sizeof(SCOTCH_Num) == 4)
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return 0;
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else
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return 1;
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}
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")
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set(PTSCOTCH_C_TEST_SCOTCH_Num_8 "
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#include <stdio.h>
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#include <stdint.h>
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#include <ptscotch.h>
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int main(int argc, char **argv) {
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if (sizeof(SCOTCH_Num) == 8)
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return 0;
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else
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return 1;
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}
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")
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check_c_source_runs("${PTSCOTCH_C_TEST_SCOTCH_Num_4}" PTSCOTCH_Num_4)
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if(NOT PTSCOTCH_Num_4)
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check_c_source_runs("${PTSCOTCH_C_TEST_SCOTCH_Num_8}" PTSCOTCH_Num_8)
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if(NOT PTSCOTCH_Num_8)
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set(PTSCOTCH_INTSIZE -1)
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else()
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set(PTSCOTCH_INTSIZE 8)
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endif()
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else()
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set(PTSCOTCH_INTSIZE 4)
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endif()
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set(CMAKE_REQUIRED_INCLUDES "")
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# check that PTSCOTCH has been found
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# ---------------------------------
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(PTSCOTCH DEFAULT_MSG
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PTSCOTCH_LIBRARIES
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PTSCOTCH_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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