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COPASI / data /CMakeModules /FindLAPACK.cmake

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# Copyright (C) 2018 by Pedro Mendes, Virginia Tech Intellectual 
# Properties, Inc., University of Heidelberg, and University of 
# of Connecticut School of Medicine. 
# All rights reserved. 

# - Find LAPACK library
# This module finds an installed fortran library that implements the LAPACK
# linear-algebra interface (see http://www.netlib.org/lapack/).
#
# The approach follows that taken for the autoconf macro file, acx_lapack.m4
# (distributed at http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html).
#
# This module sets the following variables:
#  LAPACK_FOUND - set to true if a library implementing the LAPACK interface
#    is found
#  LAPACK_LINKER_FLAGS - uncached list of required linker flags (excluding -l
#    and -L).
#  LAPACK_LIBRARIES - uncached list of libraries (using full path name) to
#    link against to use LAPACK
#  LAPACK95_LIBRARIES - uncached list of libraries (using full path name) to
#    link against to use LAPACK95
#  LAPACK95_FOUND - set to true if a library implementing the LAPACK f95
#    interface is found
#  BLA_STATIC  if set on this determines what kind of linkage we do (static)
#  BLA_VENDOR  if set checks only the specified vendor, if not set checks
#     all the possibilities
#  BLA_F95     if set on tries to find the f95 interfaces for BLAS/LAPACK
### List of vendors (BLA_VENDOR) valid in this module
##  Intel(mkl), ACML,Apple, NAS, Generic

#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file 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 CMake, substitute the full
#  License text for the above reference.)

set(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})

get_property(_LANGUAGES_ GLOBAL PROPERTY ENABLED_LANGUAGES)
if (NOT _LANGUAGES_ MATCHES Fortran)
# include(CheckFunctionExists.cmake)
else ()
# include(CheckFortranFunctionExists.cmake)
endif ()

set(LAPACK_FOUND FALSE)
set(LAPACK95_FOUND FALSE)

# TODO: move this stuff to separate module

macro(Check_Lapack_Libraries LIBRARIES _prefix _name _flags _list _blas _threads)
# This macro checks for the existence of the combination of fortran libraries
# given by _list.  If the combination is found, this macro checks (using the
# Check_Fortran_Function_Exists macro) whether can link against that library
# combination using the name of a routine given by _name using the linker
# flags given by _flags.  If the combination of libraries is found and passes
# the link test, LIBRARIES is set to the list of complete library paths that
# have been found.  Otherwise, LIBRARIES is set to FALSE.

# N.B. _prefix is the prefix applied to the names of all cached variables that
# are generated internally and marked advanced by this macro.

set(_libraries_work TRUE)
set(${LIBRARIES})
set(_combined_name)
if (NOT _libdir)
  if (WIN32)
    set(_libdir ENV LIB)
  elseif (APPLE)
    set(_libdir ENV DYLD_LIBRARY_PATH)
  else ()
    set(_libdir ENV LD_LIBRARY_PATH)
  endif ()
endif ()
foreach(_library ${_list})
  set(_combined_name ${_combined_name}_${_library})

  if(_libraries_work)
    if (BLA_STATIC)
      if (WIN32)
        set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
      endif ()
      if (APPLE)
        set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
      else ()
        set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
      endif ()
    else ()
			if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
        # for ubuntu's libblas3gf and liblapack3gf packages
        set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf)
      endif ()
    endif ()
    find_library(${_prefix}_${_library}_LIBRARY
      NAMES ${_library}
      PATHS ${_libdir}
      )
    mark_as_advanced(${_prefix}_${_library}_LIBRARY)
    set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY})
    set(_libraries_work ${${_prefix}_${_library}_LIBRARY})
  endif()
endforeach()

if(_libraries_work)
  # Test this combination of libraries.
  if(UNIX AND BLA_STATIC)
    set(CMAKE_REQUIRED_LIBRARIES ${_flags} "-Wl,--start-group" ${${LIBRARIES}} ${_blas} "-Wl,--end-group" ${_threads})
  else()
    set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas} ${_threads})
  endif()
  
  if(GFORTRAN_LIBRARY)
    set( CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${GFORTRAN_LIBRARY} m )
  endif()  

  # message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
  
  if (NOT _LANGUAGES_ MATCHES Fortran)
    check_function_exists("${_name}_" ${_prefix}${_combined_name}_WORKS)
  else ()
    check_fortran_function_exists(${_name} ${_prefix}${_combined_name}_WORKS)
  endif ()
  set(CMAKE_REQUIRED_LIBRARIES)
  mark_as_advanced(${_prefix}${_combined_name}_WORKS)
  set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
  #message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
endif()

 if(_libraries_work)
   set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threads})
 else()
    set(${LIBRARIES} FALSE)
 endif()

endmacro()


set(LAPACK_LINKER_FLAGS)
set(LAPACK_LIBRARIES)
set(LAPACK95_LIBRARIES)


if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
  find_package(BLAS)
else()
  find_package(BLAS REQUIRED)
endif()


if(BLAS_FOUND)
  set(LAPACK_LINKER_FLAGS ${BLAS_LINKER_FLAGS})
  if ($ENV{BLA_VENDOR} MATCHES ".+")
    set(BLA_VENDOR $ENV{BLA_VENDOR})
  else ()
    if(NOT BLA_VENDOR)
      set(BLA_VENDOR "All")
    endif()
  endif ()

if (BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
 if(NOT LAPACK_LIBRARIES)
  check_lapack_libraries(
  LAPACK_LIBRARIES
  LAPACK
  cheev
  ""
  "goto2"
  "${BLAS_LIBRARIES}"
  ""
  )
 endif()
endif ()


#acml lapack
 if (BLA_VENDOR MATCHES "ACML.*" OR BLA_VENDOR STREQUAL "All")
   if (BLAS_LIBRARIES MATCHES ".+acml.+")
     set (LAPACK_LIBRARIES ${BLAS_LIBRARIES})
   endif ()
 endif ()

# Apple LAPACK library?
if (BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All")
 if(NOT LAPACK_LIBRARIES)
  check_lapack_libraries(
  LAPACK_LIBRARIES
  LAPACK
  cheev
  ""
  "Accelerate"
  "${BLAS_LIBRARIES}"
  ""
  )
 endif()
endif ()
if (BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
  if ( NOT LAPACK_LIBRARIES )
    check_lapack_libraries(
    LAPACK_LIBRARIES
    LAPACK
    cheev
    ""
    "vecLib"
    "${BLAS_LIBRARIES}"
    ""
    )
  endif ()
endif ()
# Generic LAPACK library?
if (BLA_VENDOR STREQUAL "Generic" OR
    BLA_VENDOR STREQUAL "ATLAS" OR
    BLA_VENDOR STREQUAL "All")
  if ( NOT LAPACK_LIBRARIES )
    check_lapack_libraries(
    LAPACK_LIBRARIES
    LAPACK
    cheev
    ""
    "lapack"
    "${BLAS_LIBRARIES}"
    ""
    )
  endif ()
endif ()
#intel lapack
if (BLA_VENDOR MATCHES "Intel*" OR BLA_VENDOR STREQUAL "All")
  if (NOT WIN32)
    set(LM "-lm")
  endif ()
  if (_LANGUAGES_ MATCHES C OR _LANGUAGES_ MATCHES CXX)
    if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
      find_PACKAGE(Threads)
    else()
      find_package(Threads REQUIRED)
    endif()
    if (BLA_F95)
      if(NOT LAPACK95_LIBRARIES)
        # old
        check_lapack_libraries(
          LAPACK95_LIBRARIES
          LAPACK
          cheev
          ""
          "mkl_lapack95"
          "${BLAS95_LIBRARIES}"
          "${CMAKE_THREAD_LIBS_INIT};${LM}"
          )
      endif()
      if(NOT LAPACK95_LIBRARIES)
        # new >= 10.3
        check_lapack_libraries(
          LAPACK95_LIBRARIES
          LAPACK
          CHEEV
          ""
          "mkl_intel_lp64"
          "${BLAS95_LIBRARIES}"
          "${CMAKE_THREAD_LIBS_INIT};${LM}"
          )
      endif()
    else()
      if(NOT LAPACK_LIBRARIES)
        # old
        check_lapack_libraries(
          LAPACK_LIBRARIES
          LAPACK
          cheev
          ""
          "mkl_lapack"
          "${BLAS_LIBRARIES}"
          "${CMAKE_THREAD_LIBS_INIT};${LM}"
          )
      endif()
      if(NOT LAPACK_LIBRARIES)
        # new >= 10.3
        check_lapack_libraries(
          LAPACK_LIBRARIES
          LAPACK
          cheev
          ""
          "mkl_gf_lp64"
          "${BLAS_LIBRARIES}"
          "${CMAKE_THREAD_LIBS_INIT};${LM}"
          )
      endif()
    endif()
  endif ()
endif()
else()
  message(STATUS "LAPACK requires BLAS")
endif()

if(BLA_F95)
 if(LAPACK95_LIBRARIES)
  set(LAPACK95_FOUND TRUE)
 else()
  set(LAPACK95_FOUND FALSE)
 endif()
 if(NOT LAPACK_FIND_QUIETLY)
  if(LAPACK95_FOUND)
    message(STATUS "A library with LAPACK95 API found.")
  else()
    if(LAPACK_FIND_REQUIRED)
      message(FATAL_ERROR
      "A required library with LAPACK95 API not found. Please specify library location."
      )
    else()
      message(STATUS
      "A library with LAPACK95 API not found. Please specify library location."
      )
    endif()
  endif()
 endif()
 set(LAPACK_FOUND "${LAPACK95_FOUND}")
 set(LAPACK_LIBRARIES "${LAPACK95_LIBRARIES}")
else()
 if(LAPACK_LIBRARIES)
  set(LAPACK_FOUND TRUE)
 else()
  set(LAPACK_FOUND FALSE)
 endif()

 if(NOT LAPACK_FIND_QUIETLY)
  if(LAPACK_FOUND)
    message(STATUS "A library with LAPACK API found.")
  else()
    if(LAPACK_FIND_REQUIRED)
      message(FATAL_ERROR
      "A required library with LAPACK API not found. Please specify library location."
      )
    else()
      message(STATUS
      "A library with LAPACK API not found. Please specify library location."
      )
    endif()
  endif()
 endif()
endif()

set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})

	# Copyright (C) 2018 by Pedro Mendes, Virginia Tech Intellectual
	# Properties, Inc., University of Heidelberg, and University of
	# of Connecticut School of Medicine.
	# All rights reserved.

	# - Find LAPACK library
	# This module finds an installed fortran library that implements the LAPACK
	# linear-algebra interface (see http://www.netlib.org/lapack/).
	#
	# The approach follows that taken for the autoconf macro file, acx_lapack.m4
	# (distributed at http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html).
	#
	# This module sets the following variables:
	# LAPACK_FOUND - set to true if a library implementing the LAPACK interface
	# is found
	# LAPACK_LINKER_FLAGS - uncached list of required linker flags (excluding -l
	# and -L).
	# LAPACK_LIBRARIES - uncached list of libraries (using full path name) to
	# link against to use LAPACK
	# LAPACK95_LIBRARIES - uncached list of libraries (using full path name) to
	# link against to use LAPACK95
	# LAPACK95_FOUND - set to true if a library implementing the LAPACK f95
	# interface is found
	# BLA_STATIC if set on this determines what kind of linkage we do (static)
	# BLA_VENDOR if set checks only the specified vendor, if not set checks
	# all the possibilities
	# BLA_F95 if set on tries to find the f95 interfaces for BLAS/LAPACK
	### List of vendors (BLA_VENDOR) valid in this module
	## Intel(mkl), ACML,Apple, NAS, Generic

	#=============================================================================
	# Copyright 2007-2009 Kitware, Inc.
	#
	# Distributed under the OSI-approved BSD License (the "License");
	# see accompanying file 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 CMake, substitute the full
	# License text for the above reference.)

	set(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})

	get_property(_LANGUAGES_ GLOBAL PROPERTY ENABLED_LANGUAGES)
	if (NOT _LANGUAGES_ MATCHES Fortran)
	# include(CheckFunctionExists.cmake)
	else ()
	# include(CheckFortranFunctionExists.cmake)
	endif ()

	set(LAPACK_FOUND FALSE)
	set(LAPACK95_FOUND FALSE)

	# TODO: move this stuff to separate module

	macro(Check_Lapack_Libraries LIBRARIES _prefix _name _flags _list _blas _threads)
	# This macro checks for the existence of the combination of fortran libraries
	# given by _list. If the combination is found, this macro checks (using the
	# Check_Fortran_Function_Exists macro) whether can link against that library
	# combination using the name of a routine given by _name using the linker
	# flags given by _flags. If the combination of libraries is found and passes
	# the link test, LIBRARIES is set to the list of complete library paths that
	# have been found. Otherwise, LIBRARIES is set to FALSE.

	# N.B. _prefix is the prefix applied to the names of all cached variables that
	# are generated internally and marked advanced by this macro.

	set(_libraries_work TRUE)
	set(${LIBRARIES})
	set(_combined_name)
	if (NOT _libdir)
	if (WIN32)
	set(_libdir ENV LIB)
	elseif (APPLE)
	set(_libdir ENV DYLD_LIBRARY_PATH)
	else ()
	set(_libdir ENV LD_LIBRARY_PATH)
	endif ()
	endif ()
	foreach(_library ${_list})
	set(_combined_name ${_combined_name}_${_library})

	if(_libraries_work)
	if (BLA_STATIC)
	if (WIN32)
	set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
	endif ()
	if (APPLE)
	set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
	else ()
	set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
	endif ()
	else ()
	if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
	# for ubuntu's libblas3gf and liblapack3gf packages
	set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf)
	endif ()
	endif ()
	find_library(${_prefix}_${_library}_LIBRARY
	NAMES ${_library}
	PATHS ${_libdir}
	)
	mark_as_advanced(${_prefix}_${_library}_LIBRARY)
	set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY})
	set(_libraries_work ${${_prefix}_${_library}_LIBRARY})
	endif()
	endforeach()

	if(_libraries_work)
	# Test this combination of libraries.
	if(UNIX AND BLA_STATIC)
	set(CMAKE_REQUIRED_LIBRARIES ${_flags} "-Wl,--start-group" ${${LIBRARIES}} ${_blas} "-Wl,--end-group" ${_threads})
	else()
	set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas} ${_threads})
	endif()

	if(GFORTRAN_LIBRARY)
	set( CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${GFORTRAN_LIBRARY} m )
	endif()

	# message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")

	if (NOT _LANGUAGES_ MATCHES Fortran)
	check_function_exists("${_name}_" ${_prefix}${_combined_name}_WORKS)
	else ()
	check_fortran_function_exists(${_name} ${_prefix}${_combined_name}_WORKS)
	endif ()
	set(CMAKE_REQUIRED_LIBRARIES)
	mark_as_advanced(${_prefix}${_combined_name}_WORKS)
	set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
	#message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
	endif()

	if(_libraries_work)
	set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threads})
	else()
	set(${LIBRARIES} FALSE)
	endif()

	endmacro()


	set(LAPACK_LINKER_FLAGS)
	set(LAPACK_LIBRARIES)
	set(LAPACK95_LIBRARIES)


	if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
	find_package(BLAS)
	else()
	find_package(BLAS REQUIRED)
	endif()


	if(BLAS_FOUND)
	set(LAPACK_LINKER_FLAGS ${BLAS_LINKER_FLAGS})
	if ($ENV{BLA_VENDOR} MATCHES ".+")
	set(BLA_VENDOR $ENV{BLA_VENDOR})
	else ()
	if(NOT BLA_VENDOR)
	set(BLA_VENDOR "All")
	endif()
	endif ()

	if (BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
	if(NOT LAPACK_LIBRARIES)
	check_lapack_libraries(
	LAPACK_LIBRARIES
	LAPACK
	cheev
	""
	"goto2"
	"${BLAS_LIBRARIES}"
	""
	)
	endif()
	endif ()


	#acml lapack
	if (BLA_VENDOR MATCHES "ACML.*" OR BLA_VENDOR STREQUAL "All")
	if (BLAS_LIBRARIES MATCHES ".+acml.+")
	set (LAPACK_LIBRARIES ${BLAS_LIBRARIES})
	endif ()
	endif ()

	# Apple LAPACK library?
	if (BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All")
	if(NOT LAPACK_LIBRARIES)
	check_lapack_libraries(
	LAPACK_LIBRARIES
	LAPACK
	cheev
	""
	"Accelerate"
	"${BLAS_LIBRARIES}"
	""
	)
	endif()
	endif ()
	if (BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
	if ( NOT LAPACK_LIBRARIES )
	check_lapack_libraries(
	LAPACK_LIBRARIES
	LAPACK
	cheev
	""
	"vecLib"
	"${BLAS_LIBRARIES}"
	""
	)
	endif ()
	endif ()
	# Generic LAPACK library?
	if (BLA_VENDOR STREQUAL "Generic" OR
	BLA_VENDOR STREQUAL "ATLAS" OR
	BLA_VENDOR STREQUAL "All")
	if ( NOT LAPACK_LIBRARIES )
	check_lapack_libraries(
	LAPACK_LIBRARIES
	LAPACK
	cheev
	""
	"lapack"
	"${BLAS_LIBRARIES}"
	""
	)
	endif ()
	endif ()
	#intel lapack
	if (BLA_VENDOR MATCHES "Intel*" OR BLA_VENDOR STREQUAL "All")
	if (NOT WIN32)
	set(LM "-lm")
	endif ()
	if (_LANGUAGES_ MATCHES C OR _LANGUAGES_ MATCHES CXX)
	if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
	find_PACKAGE(Threads)
	else()
	find_package(Threads REQUIRED)
	endif()
	if (BLA_F95)
	if(NOT LAPACK95_LIBRARIES)
	# old
	check_lapack_libraries(
	LAPACK95_LIBRARIES
	LAPACK
	cheev
	""
	"mkl_lapack95"
	"${BLAS95_LIBRARIES}"
	"${CMAKE_THREAD_LIBS_INIT};${LM}"
	)
	endif()
	if(NOT LAPACK95_LIBRARIES)
	# new >= 10.3
	check_lapack_libraries(
	LAPACK95_LIBRARIES
	LAPACK
	CHEEV
	""
	"mkl_intel_lp64"
	"${BLAS95_LIBRARIES}"
	"${CMAKE_THREAD_LIBS_INIT};${LM}"
	)
	endif()
	else()
	if(NOT LAPACK_LIBRARIES)
	# old
	check_lapack_libraries(
	LAPACK_LIBRARIES
	LAPACK
	cheev
	""
	"mkl_lapack"
	"${BLAS_LIBRARIES}"
	"${CMAKE_THREAD_LIBS_INIT};${LM}"
	)
	endif()
	if(NOT LAPACK_LIBRARIES)
	# new >= 10.3
	check_lapack_libraries(
	LAPACK_LIBRARIES
	LAPACK
	cheev
	""
	"mkl_gf_lp64"
	"${BLAS_LIBRARIES}"
	"${CMAKE_THREAD_LIBS_INIT};${LM}"
	)
	endif()
	endif()
	endif ()
	endif()
	else()
	message(STATUS "LAPACK requires BLAS")
	endif()

	if(BLA_F95)
	if(LAPACK95_LIBRARIES)
	set(LAPACK95_FOUND TRUE)
	else()
	set(LAPACK95_FOUND FALSE)
	endif()
	if(NOT LAPACK_FIND_QUIETLY)
	if(LAPACK95_FOUND)
	message(STATUS "A library with LAPACK95 API found.")
	else()
	if(LAPACK_FIND_REQUIRED)
	message(FATAL_ERROR
	"A required library with LAPACK95 API not found. Please specify library location."
	)
	else()
	message(STATUS
	"A library with LAPACK95 API not found. Please specify library location."
	)
	endif()
	endif()
	endif()
	set(LAPACK_FOUND "${LAPACK95_FOUND}")
	set(LAPACK_LIBRARIES "${LAPACK95_LIBRARIES}")
	else()
	if(LAPACK_LIBRARIES)
	set(LAPACK_FOUND TRUE)
	else()
	set(LAPACK_FOUND FALSE)
	endif()

	if(NOT LAPACK_FIND_QUIETLY)
	if(LAPACK_FOUND)
	message(STATUS "A library with LAPACK API found.")
	else()
	if(LAPACK_FIND_REQUIRED)
	message(FATAL_ERROR
	"A required library with LAPACK API not found. Please specify library location."
	)
	else()
	message(STATUS
	"A library with LAPACK API not found. Please specify library location."
	)
	endif()
	endif()
	endif()
	endif()

	set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})