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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.
370 lines
12 KiB
CMake
370 lines
12 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 SCOTCH include dirs and libraries
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# Use this module by invoking find_package with the form:
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# find_package(SCOTCH
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# [REQUIRED] # Fail with error if scotch is not found
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# [COMPONENTS <comp1> <comp2> ...] # dependencies
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# )
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#
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# COMPONENTS can be some of the following:
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# - ESMUMPS: to activate detection of Scotch with the esmumps interface
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#
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# This module finds headers and scotch library.
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# Results are reported in variables:
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# SCOTCH_FOUND - True if headers and requested libraries were found
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# SCOTCH_INCLUDE_DIRS - scotch include directories
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# SCOTCH_LIBRARY_DIRS - Link directories for scotch libraries
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# SCOTCH_LIBRARIES - scotch component libraries to be linked
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# SCOTCH_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 -DSCOTCH=path/to/scotch):
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# SCOTCH_DIR - Where to find the base directory of scotch
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# SCOTCH_INCDIR - Where to find the header files
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# SCOTCH_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: SCOTCH_DIR, SCOTCH_INCDIR, SCOTCH_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 SCOTCH_FOUND)
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set(SCOTCH_DIR "" CACHE PATH "Installation directory of SCOTCH library")
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if (NOT SCOTCH_FIND_QUIETLY)
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message(STATUS "A cache variable, namely SCOTCH_DIR, has been set to specify the install directory of SCOTCH")
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endif()
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endif()
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# Set the version to find
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set(SCOTCH_LOOK_FOR_ESMUMPS OFF)
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if( SCOTCH_FIND_COMPONENTS )
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foreach( component ${SCOTCH_FIND_COMPONENTS} )
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if (${component} STREQUAL "ESMUMPS")
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# means we look for esmumps library
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set(SCOTCH_LOOK_FOR_ESMUMPS ON)
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endif()
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endforeach()
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endif()
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# SCOTCH may depend on Threads, try to find it
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if (NOT THREADS_FOUND)
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if (SCOTCH_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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# 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_SCOTCH_DIR "$ENV{SCOTCH_DIR}")
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set(ENV_SCOTCH_INCDIR "$ENV{SCOTCH_INCDIR}")
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if(ENV_SCOTCH_INCDIR)
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list(APPEND _inc_env "${ENV_SCOTCH_INCDIR}")
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elseif(ENV_SCOTCH_DIR)
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list(APPEND _inc_env "${ENV_SCOTCH_DIR}")
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list(APPEND _inc_env "${ENV_SCOTCH_DIR}/include")
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list(APPEND _inc_env "${ENV_SCOTCH_DIR}/include/scotch")
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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 scotch 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(SCOTCH_INCDIR)
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set(SCOTCH_scotch.h_DIRS "SCOTCH_scotch.h_DIRS-NOTFOUND")
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find_path(SCOTCH_scotch.h_DIRS
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NAMES scotch.h
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HINTS ${SCOTCH_INCDIR})
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else()
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if(SCOTCH_DIR)
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set(SCOTCH_scotch.h_DIRS "SCOTCH_scotch.h_DIRS-NOTFOUND")
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find_path(SCOTCH_scotch.h_DIRS
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NAMES scotch.h
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HINTS ${SCOTCH_DIR}
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PATH_SUFFIXES "include" "include/scotch")
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else()
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set(SCOTCH_scotch.h_DIRS "SCOTCH_scotch.h_DIRS-NOTFOUND")
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find_path(SCOTCH_scotch.h_DIRS
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NAMES scotch.h
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HINTS ${_inc_env}
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PATH_SUFFIXES "scotch")
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endif()
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endif()
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mark_as_advanced(SCOTCH_scotch.h_DIRS)
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# If found, add path to cmake variable
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# ------------------------------------
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if (SCOTCH_scotch.h_DIRS)
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set(SCOTCH_INCLUDE_DIRS "${SCOTCH_scotch.h_DIRS}")
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else ()
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set(SCOTCH_INCLUDE_DIRS "SCOTCH_INCLUDE_DIRS-NOTFOUND")
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if (NOT SCOTCH_FIND_QUIETLY)
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message(STATUS "Looking for scotch -- scotch.h not found")
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endif()
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endif()
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list(REMOVE_DUPLICATES SCOTCH_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_SCOTCH_LIBDIR "$ENV{SCOTCH_LIBDIR}")
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if(ENV_SCOTCH_LIBDIR)
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list(APPEND _lib_env "${ENV_SCOTCH_LIBDIR}")
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elseif(ENV_SCOTCH_DIR)
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list(APPEND _lib_env "${ENV_SCOTCH_DIR}")
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list(APPEND _lib_env "${ENV_SCOTCH_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 scotch lib in the given paths
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# ----------------------------------------------
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set(SCOTCH_libs_to_find "scotch;scotcherrexit")
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if (SCOTCH_LOOK_FOR_ESMUMPS)
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list(INSERT SCOTCH_libs_to_find 0 "esmumps")
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endif()
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# call cmake macro to find the lib path
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if(SCOTCH_LIBDIR)
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foreach(scotch_lib ${SCOTCH_libs_to_find})
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set(SCOTCH_${scotch_lib}_LIBRARY "SCOTCH_${scotch_lib}_LIBRARY-NOTFOUND")
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find_library(SCOTCH_${scotch_lib}_LIBRARY
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NAMES ${scotch_lib}
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HINTS ${SCOTCH_LIBDIR})
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endforeach()
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else()
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if(SCOTCH_DIR)
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foreach(scotch_lib ${SCOTCH_libs_to_find})
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set(SCOTCH_${scotch_lib}_LIBRARY "SCOTCH_${scotch_lib}_LIBRARY-NOTFOUND")
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find_library(SCOTCH_${scotch_lib}_LIBRARY
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NAMES ${scotch_lib}
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HINTS ${SCOTCH_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(scotch_lib ${SCOTCH_libs_to_find})
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set(SCOTCH_${scotch_lib}_LIBRARY "SCOTCH_${scotch_lib}_LIBRARY-NOTFOUND")
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find_library(SCOTCH_${scotch_lib}_LIBRARY
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NAMES ${scotch_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(SCOTCH_LIBRARIES "")
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set(SCOTCH_LIBRARY_DIRS "")
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# If found, add path to cmake variable
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# ------------------------------------
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foreach(scotch_lib ${SCOTCH_libs_to_find})
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if (SCOTCH_${scotch_lib}_LIBRARY)
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get_filename_component(${scotch_lib}_lib_path "${SCOTCH_${scotch_lib}_LIBRARY}" PATH)
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# set cmake variables
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list(APPEND SCOTCH_LIBRARIES "${SCOTCH_${scotch_lib}_LIBRARY}")
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list(APPEND SCOTCH_LIBRARY_DIRS "${${scotch_lib}_lib_path}")
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else ()
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list(APPEND SCOTCH_LIBRARIES "${SCOTCH_${scotch_lib}_LIBRARY}")
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if (NOT SCOTCH_FIND_QUIETLY)
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message(STATUS "Looking for scotch -- lib ${scotch_lib} not found")
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endif()
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endif ()
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mark_as_advanced(SCOTCH_${scotch_lib}_LIBRARY)
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endforeach()
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list(REMOVE_DUPLICATES SCOTCH_LIBRARY_DIRS)
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# check a function to validate the find
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if(SCOTCH_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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# SCOTCH
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if (SCOTCH_INCLUDE_DIRS)
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set(REQUIRED_INCDIRS "${SCOTCH_INCLUDE_DIRS}")
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endif()
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if (SCOTCH_LIBRARY_DIRS)
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set(REQUIRED_LIBDIRS "${SCOTCH_LIBRARY_DIRS}")
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endif()
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set(REQUIRED_LIBS "${SCOTCH_LIBRARIES}")
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# THREADS
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if(CMAKE_THREAD_LIBS_INIT)
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list(APPEND REQUIRED_LIBS "${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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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(SCOTCH_WORKS CACHE)
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include(CheckFunctionExists)
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check_function_exists(SCOTCH_graphInit SCOTCH_WORKS)
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mark_as_advanced(SCOTCH_WORKS)
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if(SCOTCH_WORKS)
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# save link with dependencies
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set(SCOTCH_LIBRARIES "${REQUIRED_LIBS}")
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else()
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if(NOT SCOTCH_FIND_QUIETLY)
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message(STATUS "Looking for SCOTCH : test of SCOTCH_graphInit with SCOTCH library fails")
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message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
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message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
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message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
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endif()
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endif()
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set(CMAKE_REQUIRED_INCLUDES)
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set(CMAKE_REQUIRED_FLAGS)
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set(CMAKE_REQUIRED_LIBRARIES)
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endif()
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if (SCOTCH_LIBRARIES)
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list(GET SCOTCH_LIBRARIES 0 first_lib)
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get_filename_component(first_lib_path "${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(SCOTCH_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of SCOTCH library" FORCE)
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else()
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set(SCOTCH_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of SCOTCH library" FORCE)
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endif()
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endif()
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mark_as_advanced(SCOTCH_DIR)
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mark_as_advanced(SCOTCH_DIR_FOUND)
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# Check the size of SCOTCH_Num
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# ---------------------------------
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set(CMAKE_REQUIRED_INCLUDES ${SCOTCH_INCLUDE_DIRS})
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include(CheckCSourceRuns)
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#stdio.h and stdint.h should be included by scotch.h directly
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set(SCOTCH_C_TEST_SCOTCH_Num_4 "
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#include <stdio.h>
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#include <stdint.h>
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#include <scotch.h>
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int main(int argc, char **argv) {
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if (sizeof(SCOTCH_Num) == 4)
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return 0;
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else
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return 1;
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}
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")
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set(SCOTCH_C_TEST_SCOTCH_Num_8 "
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#include <stdio.h>
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#include <stdint.h>
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#include <scotch.h>
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int main(int argc, char **argv) {
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if (sizeof(SCOTCH_Num) == 8)
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return 0;
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else
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return 1;
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}
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")
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check_c_source_runs("${SCOTCH_C_TEST_SCOTCH_Num_4}" SCOTCH_Num_4)
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if(NOT SCOTCH_Num_4)
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check_c_source_runs("${SCOTCH_C_TEST_SCOTCH_Num_8}" SCOTCH_Num_8)
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if(NOT SCOTCH_Num_8)
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set(SCOTCH_INTSIZE -1)
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else()
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set(SCOTCH_INTSIZE 8)
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endif()
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else()
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set(SCOTCH_INTSIZE 4)
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endif()
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set(CMAKE_REQUIRED_INCLUDES "")
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# check that SCOTCH has been found
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# ---------------------------------
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(SCOTCH DEFAULT_MSG
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SCOTCH_LIBRARIES
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SCOTCH_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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