FindLAPACKE.cmake 18.3 KB
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###
#
# @copyright (c) 2009-2014 The University of Tennessee and The University
#                          of Tennessee Research Foundation.
#                          All rights reserved.
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# @copyright (c) 2012-2018 Inria. All rights reserved.
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# @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
#
###
#
# - Find LAPACKE include dirs and libraries
# Use this module by invoking find_package with the form:
#  find_package(LAPACKE
#               [REQUIRED] # Fail with error if lapacke is not found
#               [COMPONENTS <comp1> <comp2> ...] # dependencies
#              )
#
#  LAPACKE depends on the following libraries:
#   - LAPACK
#
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#  COMPONENTS are optional libraries CHAMELEON could be linked with,
#  Use it to drive detection of a specific compilation chain
#  COMPONENTS can be some of the following:
#   - TMG: to check that LAPACKE provides the tmglib interface
#
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# This module finds headers and lapacke library.
# Results are reported in variables:
#  LAPACKE_FOUND            - True if headers and requested libraries were found
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#  LAPACKE_CFLAGS_OTHER      - lapacke compiler flags without headers paths
#  LAPACKE_LDFLAGS_OTHER     - lapacke linker flags without libraries
#  LAPACKE_INCLUDE_DIRS      - lapacke include directories
#  LAPACKE_LIBRARY_DIRS      - lapacke link directories
#  LAPACKE_LIBRARIES         - lapacke libraries to be linked (absolute path)
#  LAPACKE_CFLAGS_OTHER_DEP  - lapacke + dependencies compiler flags without headers paths
#  LAPACKE_LDFLAGS_OTHER_DEP - lapacke + dependencies linker flags without libraries
#  LAPACKE_INCLUDE_DIRS_DEP  - lapacke + dependencies include directories
#  LAPACKE_LIBRARY_DIRS_DEP  - lapacke + dependencies link directories
#  LAPACKE_LIBRARIES_DEP     - lapacke + dependencies libraries
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#
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#  LAPACKE_FOUND_WITH_PKGCONFIG - True if found with pkg-config
#  if found with pkg-config the following variables may be set
#  <PREFIX>  = LAPACKE
#  <XPREFIX> = <PREFIX>        for common case
#  <XPREFIX> = <PREFIX>_STATIC for static linking
#  <XPREFIX>_FOUND          ... set to 1 if module(s) exist
#  <XPREFIX>_LIBRARIES      ... only the libraries (w/o the '-l')
#  <XPREFIX>_LIBRARY_DIRS   ... the paths of the libraries (w/o the '-L')
#  <XPREFIX>_LDFLAGS        ... all required linker flags
#  <XPREFIX>_LDFLAGS_OTHER  ... all other linker flags
#  <XPREFIX>_INCLUDE_DIRS   ... the '-I' preprocessor flags (w/o the '-I')
#  <XPREFIX>_CFLAGS         ... all required cflags
#  <XPREFIX>_CFLAGS_OTHER   ... the other compiler flags
#
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# The user can give specific paths where to find the libraries adding cmake
# options at configure (ex: cmake path/to/project -DLAPACKE_DIR=path/to/lapacke):
#  LAPACKE_DIR             - Where to find the base directory of lapacke
#  LAPACKE_INCDIR          - Where to find the header files
#  LAPACKE_LIBDIR          - Where to find the library files
# The module can also look for the following environment variables if paths
# are not given as cmake variable: LAPACKE_DIR, LAPACKE_INCDIR, LAPACKE_LIBDIR
#
# LAPACKE could be directly embedded in LAPACK library (ex: Intel MKL) so that
# we test a lapacke function with the lapack libraries found and set LAPACKE
# variables to LAPACK ones if test is successful. To skip this feature and
# look for a stand alone lapacke, please add the following in your
# CMakeLists.txt before to call find_package(LAPACKE):
# set(LAPACKE_STANDALONE TRUE)

#=============================================================================
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# Copyright 2012-2018 Inria
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# Copyright 2012-2013 Emmanuel Agullo
# Copyright 2012-2013 Mathieu Faverge
# Copyright 2012      Cedric Castagnede
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# Copyright 2013-2018 Florent Pruvost
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#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file MORSE-Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of Morse, substitute the full
#  License text for the above reference.)

if (NOT LAPACKE_FOUND)
  set(LAPACKE_DIR "" CACHE PATH "Installation directory of LAPACKE library")
  if (NOT LAPACKE_FIND_QUIETLY)
    message(STATUS "A cache variable, namely LAPACKE_DIR, has been set to specify the install directory of LAPACKE")
  endif()
endif()

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# to check that LAPACKE provides the tmglib interface
set(LAPACKE_WITH_TMG OFF)
if( LAPACKE_FIND_COMPONENTS )
  foreach( component ${LAPACKE_FIND_COMPONENTS} )
    if (${component} STREQUAL "TMG")
      set(LAPACKE_WITH_TMG ON)
    endif()
  endforeach()
endif()

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# LAPACKE depends on LAPACK anyway, try to find it
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if(LAPACKE_FIND_REQUIRED)
  find_package(LAPACK REQUIRED)
else()
  find_package(LAPACK)
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endif()

# LAPACKE depends on LAPACK
if (LAPACK_FOUND)

  if (NOT LAPACKE_STANDALONE)
    # check if a lapacke function exists in the LAPACK lib
    include(CheckFunctionExists)
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    set(CMAKE_REQUIRED_LIBRARIES "${LAPACK_LDFLAGS_OTHER_DEP};${LAPACK_LIBRARIES_DEP}")
    set(CMAKE_REQUIRED_INCLUDES "${LAPACK_INCLUDE_DIRS_DEP}")
    set(CMAKE_REQUIRED_FLAGS "${LAPACK_CFLAGS_OTHER_DEP}")
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    unset(LAPACKE_WORKS CACHE)
    check_function_exists(LAPACKE_dgeqrf LAPACKE_WORKS)
    mark_as_advanced(LAPACKE_WORKS)
    set(CMAKE_REQUIRED_LIBRARIES)

    if(LAPACKE_WORKS)
      if(NOT LAPACKE_FIND_QUIETLY)
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        message(STATUS "Looking for lapacke: test with lapack succeeds")
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      endif()
      # test succeeds: LAPACKE is in LAPACK
      set(LAPACKE_LIBRARIES "${LAPACK_LIBRARIES}")
    endif()
  endif (NOT LAPACKE_STANDALONE)

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  # test fails with lapack: try to find LAPACKE lib exterior to LAPACK
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  if (LAPACKE_STANDALONE OR NOT LAPACKE_WORKS)

    if(NOT LAPACKE_WORKS AND NOT LAPACKE_FIND_QUIETLY)
      message(STATUS "Looking for lapacke : test with lapack fails")
    endif()

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    # try with pkg-config
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    set(ENV_LAPACKE_DIR "$ENV{LAPACKE_DIR}")
    set(ENV_LAPACKE_INCDIR "$ENV{LAPACKE_INCDIR}")
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    set(ENV_LAPACKE_LIBDIR "$ENV{LAPACKE_LIBDIR}")
    set(LAPACKE_GIVEN_BY_USER "FALSE")
    if ( LAPACKE_DIR OR ( LAPACKE_INCDIR AND LAPACKE_LIBDIR) OR ENV_LAPACKE_DIR OR (ENV_LAPACKE_INCDIR AND ENV_LAPACKE_LIBDIR) )
      set(LAPACKE_GIVEN_BY_USER "TRUE")
    endif()

    include(FindPkgConfig)
    find_package(PkgConfig QUIET)
    if( PKG_CONFIG_EXECUTABLE AND NOT LAPACKE_GIVEN_BY_USER)

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      if (BLA_STATIC)
        set(MKL_STR_BLA_STATIC "static")
      else()
        set(MKL_STR_BLA_STATIC "dynamic")
      endif()
      # try different blas
      if (BLA_VENDOR STREQUAL "Intel10_64lp")
        pkg_search_module(LAPACKE mkl-${MKL_STR_BLA_STATIC}-lp64-iomp)
      elseif(BLA_VENDOR STREQUAL "Intel10_64lp_seq")
        pkg_search_module(LAPACKE mkl-${MKL_STR_BLA_STATIC}-lp64-seq)
      elseif(BLA_VENDOR STREQUAL "Open")
        pkg_search_module(LAPACKE openblas)
      elseif(BLA_VENDOR STREQUAL "Generic")
        pkg_search_module(LAPACKE lapacke)
      else()
        pkg_search_module(LAPACKE lapacke)
        pkg_search_module(LAPACKE openblas)
        pkg_search_module(LAPACKE mkl-${MKL_STR_BLA_STATIC}-lp64-seq)
      endif()
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      if (NOT LAPACKE_FIND_QUIETLY)
        if (LAPACKE_FOUND AND LAPACKE_LIBRARIES)
          message(STATUS "Looking for LAPACKE - found using PkgConfig")
        else()
          message(STATUS "${Magenta}Looking for LAPACKE - not found using PkgConfig."
            "\n   Perhaps you should add the directory containing lapacke.pc to"
            "\n   the PKG_CONFIG_PATH environment variable.${ColourReset}")
        endif()
      endif()

      if (LAPACKE_FOUND AND LAPACKE_LIBRARIES)
        set(LAPACKE_FOUND_WITH_PKGCONFIG "TRUE")
        find_pkgconfig_libraries_absolute_path(LAPACKE)
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      else()
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        set(LAPACKE_FOUND_WITH_PKGCONFIG "FALSE")
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      endif()
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    endif()
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    if (NOT LAPACKE_FOUND_WITH_PKGCONFIG OR LAPACKE_GIVEN_BY_USER)

      # Try to find LAPACKE lib
      #######################

      # Looking for include
      # -------------------

      # Add system include paths to search include
      # ------------------------------------------
      unset(_inc_env)
      set(ENV_LAPACKE_DIR "$ENV{LAPACKE_DIR}")
      set(ENV_LAPACKE_INCDIR "$ENV{LAPACKE_INCDIR}")
      if(ENV_LAPACKE_INCDIR)
        list(APPEND _inc_env "${ENV_LAPACKE_INCDIR}")
      elseif(ENV_LAPACKE_DIR)
        list(APPEND _inc_env "${ENV_LAPACKE_DIR}")
        list(APPEND _inc_env "${ENV_LAPACKE_DIR}/include")
        list(APPEND _inc_env "${ENV_LAPACKE_DIR}/include/lapacke")
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      else()
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        if(WIN32)
          string(REPLACE ":" ";" _inc_env "$ENV{INCLUDE}")
        else()
          string(REPLACE ":" ";" _path_env "$ENV{INCLUDE}")
          list(APPEND _inc_env "${_path_env}")
          string(REPLACE ":" ";" _path_env "$ENV{C_INCLUDE_PATH}")
          list(APPEND _inc_env "${_path_env}")
          string(REPLACE ":" ";" _path_env "$ENV{CPATH}")
          list(APPEND _inc_env "${_path_env}")
          string(REPLACE ":" ";" _path_env "$ENV{INCLUDE_PATH}")
          list(APPEND _inc_env "${_path_env}")
        endif()
      endif()
      list(APPEND _inc_env "${CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES}")
      list(APPEND _inc_env "${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}")
      list(REMOVE_DUPLICATES _inc_env)


      # Try to find the lapacke header in the given paths
      # -------------------------------------------------
      # call cmake macro to find the header path
      if(LAPACKE_INCDIR)
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        set(LAPACKE_lapacke.h_DIRS "LAPACKE_lapacke.h_DIRS-NOTFOUND")
        find_path(LAPACKE_lapacke.h_DIRS
          NAMES lapacke.h
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          HINTS ${LAPACKE_INCDIR})
      else()
        if(LAPACKE_DIR)
          set(LAPACKE_lapacke.h_DIRS "LAPACKE_lapacke.h_DIRS-NOTFOUND")
          find_path(LAPACKE_lapacke.h_DIRS
            NAMES lapacke.h
            HINTS ${LAPACKE_DIR}
            PATH_SUFFIXES "include" "include/lapacke")
        else()
          set(LAPACKE_lapacke.h_DIRS "LAPACKE_lapacke.h_DIRS-NOTFOUND")
          find_path(LAPACKE_lapacke.h_DIRS
            NAMES lapacke.h
            HINTS ${_inc_env})
        endif()
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      endif()
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      mark_as_advanced(LAPACKE_lapacke.h_DIRS)

      # If found, add path to cmake variable
      # ------------------------------------
      if (LAPACKE_lapacke.h_DIRS)
        set(LAPACKE_INCLUDE_DIRS "${LAPACKE_lapacke.h_DIRS}")
      else ()
        set(LAPACKE_INCLUDE_DIRS "LAPACKE_INCLUDE_DIRS-NOTFOUND")
        if(NOT LAPACKE_FIND_QUIETLY)
          message(STATUS "Looking for lapacke -- lapacke.h not found")
        endif()
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      endif()


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      # Looking for lib
      # ---------------
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      # Add system library paths to search lib
      # --------------------------------------
      unset(_lib_env)
      set(ENV_LAPACKE_LIBDIR "$ENV{LAPACKE_LIBDIR}")
      if(ENV_LAPACKE_LIBDIR)
        list(APPEND _lib_env "${ENV_LAPACKE_LIBDIR}")
      elseif(ENV_LAPACKE_DIR)
        list(APPEND _lib_env "${ENV_LAPACKE_DIR}")
        list(APPEND _lib_env "${ENV_LAPACKE_DIR}/lib")
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      else()
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        if(WIN32)
          string(REPLACE ":" ";" _lib_env "$ENV{LIB}")
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        else()
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          if(APPLE)
            string(REPLACE ":" ";" _lib_env "$ENV{DYLD_LIBRARY_PATH}")
          else()
            string(REPLACE ":" ";" _lib_env "$ENV{LD_LIBRARY_PATH}")
          endif()
          list(APPEND _lib_env "${CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES}")
          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 lapacke lib in the given paths
      # ----------------------------------------------
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      # call cmake macro to find the lib path
      if(LAPACKE_LIBDIR)
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        set(LAPACKE_lapacke_LIBRARY "LAPACKE_lapacke_LIBRARY-NOTFOUND")
        find_library(LAPACKE_lapacke_LIBRARY
          NAMES lapacke
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          HINTS ${LAPACKE_LIBDIR})
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      else()
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        if(LAPACKE_DIR)
          set(LAPACKE_lapacke_LIBRARY "LAPACKE_lapacke_LIBRARY-NOTFOUND")
          find_library(LAPACKE_lapacke_LIBRARY
            NAMES lapacke
            HINTS ${LAPACKE_DIR}
            PATH_SUFFIXES lib lib32 lib64)
        else()
          set(LAPACKE_lapacke_LIBRARY "LAPACKE_lapacke_LIBRARY-NOTFOUND")
          find_library(LAPACKE_lapacke_LIBRARY
            NAMES lapacke
            HINTS ${_lib_env})
        endif()
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      endif()
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      mark_as_advanced(LAPACKE_lapacke_LIBRARY)
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      # If found, add path to cmake variable
      # ------------------------------------
      if (LAPACKE_lapacke_LIBRARY)
        get_filename_component(lapacke_lib_path "${LAPACKE_lapacke_LIBRARY}" PATH)
        # set cmake variables
        set(LAPACKE_LIBRARIES    "${LAPACKE_lapacke_LIBRARY}")
        set(LAPACKE_LIBRARY_DIRS "${lapacke_lib_path}")
      else ()
        set(LAPACKE_LIBRARIES    "LAPACKE_LIBRARIES-NOTFOUND")
        set(LAPACKE_LIBRARY_DIRS "LAPACKE_LIBRARY_DIRS-NOTFOUND")
        if (NOT LAPACKE_FIND_QUIETLY)
          message(STATUS "Looking for lapacke -- lib lapacke not found")
        endif()
      endif ()
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    endif (NOT LAPACKE_FOUND_WITH_PKGCONFIG OR LAPACKE_GIVEN_BY_USER)
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  endif (LAPACKE_STANDALONE OR NOT LAPACKE_WORKS)

  # check a function to validate the find
  if(LAPACKE_LIBRARIES)

    set(REQUIRED_INCDIRS)
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    set(REQUIRED_FLAGS)
    set(REQUIRED_LDFLAGS)
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    set(REQUIRED_LIBDIRS)
    set(REQUIRED_LIBS)

    # LAPACKE
    if (LAPACKE_INCLUDE_DIRS)
      set(REQUIRED_INCDIRS "${LAPACKE_INCLUDE_DIRS}")
    endif()
    if (LAPACKE_CFLAGS_OTHER)
      list(APPEND REQUIRED_FLAGS "${LAPACKE_CFLAGS_OTHER}")
    endif()
    if (LAPACKE_LDFLAGS_OTHER)
      list(APPEND REQUIRED_LDFLAGS "${LAPACKE_LDFLAGS_OTHER}")
    endif()
    if (LAPACKE_LIBRARY_DIRS)
      set(REQUIRED_LIBDIRS "${LAPACKE_LIBRARY_DIRS}")
    endif()
    set(REQUIRED_LIBS "${LAPACKE_LIBRARIES}")
    # LAPACK
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    if (LAPACK_INCLUDE_DIRS_DEP)
      list(APPEND REQUIRED_INCDIRS "${LAPACK_INCLUDE_DIRS_DEP}")
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    endif()
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    if (LAPACK_CFLAGS_OTHER_DEP)
      list(APPEND REQUIRED_FLAGS "${LAPACK_CFLAGS_OTHER_DEP}")
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    endif()
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    if (LAPACK_LDFLAGS_OTHER_DEP)
      list(APPEND REQUIRED_LDFLAGS "${LAPACK_LDFLAGS_OTHER_DEP}")
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    endif()
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    if (LAPACK_LIBRARY_DIRS_DEP)
      list(APPEND REQUIRED_LIBDIRS "${LAPACK_LIBRARY_DIRS_DEP}")
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    endif()
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    list(APPEND REQUIRED_LIBS "${LAPACK_LIBRARIES_DEP}")
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    # Fortran
    if (CMAKE_C_COMPILER_ID MATCHES "GNU")
      find_library(
        FORTRAN_gfortran_LIBRARY
        NAMES gfortran
        HINTS ${_lib_env}
        )
      mark_as_advanced(FORTRAN_gfortran_LIBRARY)
      if (FORTRAN_gfortran_LIBRARY)
        list(APPEND REQUIRED_LIBS "${FORTRAN_gfortran_LIBRARY}")
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      endif()
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    elseif (CMAKE_C_COMPILER_ID MATCHES "Intel")
      find_library(
        FORTRAN_ifcore_LIBRARY
        NAMES ifcore
        HINTS ${_lib_env}
        )
      mark_as_advanced(FORTRAN_ifcore_LIBRARY)
      if (FORTRAN_ifcore_LIBRARY)
        list(APPEND REQUIRED_LIBS "${FORTRAN_ifcore_LIBRARY}")
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      endif()
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    endif()
    # m
    find_library(M_LIBRARY NAMES m HINTS ${_lib_env})
    mark_as_advanced(M_LIBRARY)
    if(M_LIBRARY)
      list(APPEND REQUIRED_LIBS "${M_LIBRARY}")
    endif()
    # set required libraries for link
    set(CMAKE_REQUIRED_INCLUDES "${REQUIRED_INCDIRS}")
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    if (REQUIRED_FLAGS)
      set(REQUIRED_FLAGS_COPY "${REQUIRED_FLAGS}")
      set(REQUIRED_FLAGS)
      set(REQUIRED_DEFINITIONS)
      foreach(_flag ${REQUIRED_FLAGS_COPY})
        if (_flag MATCHES "^-D")
         list(APPEND REQUIRED_DEFINITIONS "${_flag}")
        endif()
        string(REGEX REPLACE "^-D.*" "" _flag "${_flag}")
        list(APPEND REQUIRED_FLAGS "${_flag}")
      endforeach()
    endif()
    set(CMAKE_REQUIRED_DEFINITIONS "${REQUIRED_DEFINITIONS}")
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    set(CMAKE_REQUIRED_FLAGS "${REQUIRED_FLAGS}")
    set(CMAKE_REQUIRED_LIBRARIES)
    list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LDFLAGS}")
    list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LIBS}")
    string(REGEX REPLACE "^ -" "-" CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")

    # test link
    unset(LAPACKE_WORKS CACHE)
    include(CheckFunctionExists)
    check_function_exists(LAPACKE_dgeqrf LAPACKE_WORKS)
    if (LAPACKE_WORKS AND LAPACKE_WITH_TMG)
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      unset(LAPACKE_WORKS CACHE)
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      check_function_exists(LAPACKE_dlatms_work LAPACKE_WORKS)
    endif()
    mark_as_advanced(LAPACKE_WORKS)
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    if(LAPACKE_WORKS)
      # save link with dependencies
      set(LAPACKE_LIBRARIES_DEP "${REQUIRED_LIBS}")
      set(LAPACKE_LIBRARY_DIRS_DEP "${REQUIRED_LIBDIRS}")
      set(LAPACKE_INCLUDE_DIRS_DEP "${REQUIRED_INCDIRS}")
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      set(LAPACKE_CFLAGS_OTHER_DEP "${REQUIRED_FLAGS}")
      set(LAPACKE_LDFLAGS_OTHER_DEP "${REQUIRED_LDFLAGS}")
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      list(REMOVE_DUPLICATES LAPACKE_LIBRARY_DIRS_DEP)
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      list(REMOVE_DUPLICATES LAPACKE_CFLAGS_OTHER_DEP)
      list(REMOVE_DUPLICATES LAPACKE_LDFLAGS_OTHER_DEP)
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    else()
      if(NOT LAPACKE_FIND_QUIETLY)
        message(STATUS "Looking for lapacke: test of LAPACKE_dgeqrf with lapacke and lapack libraries fails")
        message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
        message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
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        message(STATUS "CMAKE_REQUIRED_FLAGS: ${CMAKE_REQUIRED_FLAGS}")
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        message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
      endif()
    endif()
    set(CMAKE_REQUIRED_INCLUDES)
    set(CMAKE_REQUIRED_FLAGS)
    set(CMAKE_REQUIRED_LIBRARIES)
  endif(LAPACKE_LIBRARIES)
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else(LAPACK_FOUND)

  if (NOT LAPACKE_FIND_QUIETLY)
    message(STATUS "LAPACKE requires LAPACK but LAPACK has not been found."
      "Please look for LAPACK first.")
  endif()

endif(LAPACK_FOUND)

if (LAPACKE_LIBRARIES)
  list(GET LAPACKE_LIBRARIES 0 first_lib)
  get_filename_component(first_lib_path "${first_lib}" PATH)
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  if (NOT LAPACKE_LIBRARY_DIRS)
    set(LAPACKE_LIBRARY_DIRS "${first_lib_path}")
  endif()
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  if (${first_lib_path} MATCHES "(/lib(32|64)?$)|(/lib/intel64$|/lib/ia32$)")
    string(REGEX REPLACE "(/lib(32|64)?$)|(/lib/intel64$|/lib/ia32$)" "" not_cached_dir "${first_lib_path}")
    set(LAPACKE_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of LAPACKE library" FORCE)
  else()
    set(LAPACKE_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of LAPACKE library" FORCE)
  endif()
endif()
mark_as_advanced(LAPACKE_DIR)
mark_as_advanced(LAPACKE_DIR_FOUND)

# check that LAPACKE has been found
# ---------------------------------
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LAPACKE DEFAULT_MSG
  LAPACKE_LIBRARIES
  LAPACKE_WORKS)