mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-21 07:19:46 +08:00
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.
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: ${CMAKE_REQUIRED_INCLUDES}")
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message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
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endif()
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endif()
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set(CMAKE_REQUIRED_INCLUDES)
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set(CMAKE_REQUIRED_FLAGS)
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set(CMAKE_REQUIRED_LIBRARIES)
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endif()
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if (PTSCOTCH_LIBRARIES)
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list(GET PTSCOTCH_LIBRARIES 0 first_lib)
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get_filename_component(first_lib_path "${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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