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+# - 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 ${CMAKE_FIND_LIBRARY_SUFFIXES})
+
+get_property(_LANGUAGES_ GLOBAL PROPERTY ENABLED_LANGUAGES)
+if (NOT _LANGUAGES_ MATCHES Fortran)
+include(CheckFunctionExists)
+else (NOT _LANGUAGES_ MATCHES Fortran)
+include(CheckFortranFunctionExists)
+endif (NOT _LANGUAGES_ MATCHES Fortran)
+
+set(LAPACK_FOUND FALSE)
+set(LAPACK95_FOUND FALSE)
+
+# TODO: move this stuff to separate module
+
+macro(Check_Lapack_Libraries LIBRARIES _prefix _name _flags _list _blas _threads)
+# This macro checks for the existence of the combination of fortran libraries
+# given by _list. If the combination is found, this macro checks (using the
+# Check_Fortran_Function_Exists macro) whether can link against that library
+# combination using the name of a routine given by _name using the linker
+# flags given by _flags. If the combination of libraries is found and passes
+# the link test, LIBRARIES is set to the list of complete library paths that
+# have been found. Otherwise, LIBRARIES is set to FALSE.
+
+# N.B. _prefix is the prefix applied to the names of all cached variables that
+# are generated internally and marked advanced by this macro.
+
+set(_libraries_work TRUE)
+set(${LIBRARIES})
+set(_combined_name)
+if (NOT _libdir)
+ if (WIN32)
+ set(_libdir ENV LIB)
+ elseif (APPLE)
+ set(_libdir /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV DYLD_LIBRARY_PATH)
+ else ()
+ set(_libdir /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 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 ( WIN32 )
+ if (APPLE)
+ set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
+ else (APPLE)
+ set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
+ endif (APPLE)
+ else (BLA_STATIC)
+ if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+ # for ubuntu's libblas3gf and liblapack3gf packages
+ set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf)
+ endif ()
+ endif (BLA_STATIC)
+ find_library(${_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(_libraries_work)
+endforeach(_library ${_list})
+
+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(UNIX AND BLA_STATIC)
+ set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas} ${_threads})
+ endif(UNIX AND BLA_STATIC)
+# message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
+ if (NOT _LANGUAGES_ MATCHES Fortran)
+ check_function_exists("${_name}_" ${_prefix}${_combined_name}_WORKS)
+ else (NOT _LANGUAGES_ MATCHES Fortran)
+ check_fortran_function_exists(${_name} ${_prefix}${_combined_name}_WORKS)
+ endif (NOT _LANGUAGES_ MATCHES Fortran)
+ set(CMAKE_REQUIRED_LIBRARIES)
+ mark_as_advanced(${_prefix}${_combined_name}_WORKS)
+ set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
+ #message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
+endif(_libraries_work)
+
+ if(_libraries_work)
+ set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threads})
+ else(_libraries_work)
+ set(${LIBRARIES} FALSE)
+ endif(_libraries_work)
+
+endmacro(Check_Lapack_Libraries)
+
+
+set(LAPACK_LINKER_FLAGS)
+set(LAPACK_LIBRARIES)
+set(LAPACK95_LIBRARIES)
+
+
+if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+ find_package(BLAS)
+else(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+ find_package(BLAS REQUIRED)
+endif(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+
+
+if(BLAS_FOUND)
+ set(LAPACK_LINKER_FLAGS ${BLAS_LINKER_FLAGS})
+ if ($ENV{BLA_VENDOR} MATCHES ".+")
+ set(BLA_VENDOR $ENV{BLA_VENDOR})
+ else ($ENV{BLA_VENDOR} MATCHES ".+")
+ if(NOT BLA_VENDOR)
+ set(BLA_VENDOR "All")
+ endif(NOT BLA_VENDOR)
+ endif ($ENV{BLA_VENDOR} MATCHES ".+")
+
+if (BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
+ if(NOT LAPACK_LIBRARIES)
+ check_lapack_libraries(
+ LAPACK_LIBRARIES
+ LAPACK
+ cheev
+ ""
+ "goto2"
+ "${BLAS_LIBRARIES}"
+ ""
+ )
+ endif(NOT LAPACK_LIBRARIES)
+endif (BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
+
+
+#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(NOT LAPACK_LIBRARIES)
+endif (BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All")
+if (BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
+ if ( NOT LAPACK_LIBRARIES )
+ check_lapack_libraries(
+ LAPACK_LIBRARIES
+ LAPACK
+ cheev
+ ""
+ "vecLib"
+ "${BLAS_LIBRARIES}"
+ ""
+ )
+ endif ( NOT LAPACK_LIBRARIES )
+endif (BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
+# Generic LAPACK library?
+if (BLA_VENDOR STREQUAL "Generic" OR
+ BLA_VENDOR STREQUAL "ATLAS" OR
+ BLA_VENDOR STREQUAL "All")
+ if ( NOT LAPACK_LIBRARIES )
+ check_lapack_libraries(
+ LAPACK_LIBRARIES
+ LAPACK
+ cheev
+ ""
+ "lapack"
+ "${BLAS_LIBRARIES}"
+ ""
+ )
+ endif ( NOT LAPACK_LIBRARIES )
+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(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+ find_package(Threads REQUIRED)
+ endif(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+ if (BLA_F95)
+ if(NOT LAPACK95_LIBRARIES)
+ # old
+ check_lapack_libraries(
+ LAPACK95_LIBRARIES
+ LAPACK
+ cheev
+ ""
+ "mkl_lapack95"
+ "${BLAS95_LIBRARIES}"
+ "${CMAKE_THREAD_LIBS_INIT};${LM}"
+ )
+ endif(NOT LAPACK95_LIBRARIES)
+ if(NOT LAPACK95_LIBRARIES)
+ # new >= 10.3
+ check_lapack_libraries(
+ LAPACK95_LIBRARIES
+ LAPACK
+ CHEEV
+ ""
+ "mkl_intel_lp64"
+ "${BLAS95_LIBRARIES}"
+ "${CMAKE_THREAD_LIBS_INIT};${LM}"
+ )
+ endif(NOT LAPACK95_LIBRARIES)
+ else(BLA_F95)
+ if(NOT LAPACK_LIBRARIES)
+ # old
+ check_lapack_libraries(
+ LAPACK_LIBRARIES
+ LAPACK
+ cheev
+ ""
+ "mkl_lapack"
+ "${BLAS_LIBRARIES}"
+ "${CMAKE_THREAD_LIBS_INIT};${LM}"
+ )
+ endif(NOT LAPACK_LIBRARIES)
+ if(NOT LAPACK_LIBRARIES)
+ # new >= 10.3
+ check_lapack_libraries(
+ LAPACK_LIBRARIES
+ LAPACK
+ cheev
+ ""
+ "mkl_gf_lp64"
+ "${BLAS_LIBRARIES}"
+ "${CMAKE_THREAD_LIBS_INIT};${LM}"
+ )
+ endif(NOT LAPACK_LIBRARIES)
+ endif(BLA_F95)
+ endif (_LANGUAGES_ MATCHES C OR _LANGUAGES_ MATCHES CXX)
+endif(BLA_VENDOR MATCHES "Intel*" OR BLA_VENDOR STREQUAL "All")
+else(BLAS_FOUND)
+ message(STATUS "LAPACK requires BLAS")
+endif(BLAS_FOUND)
+
+if(BLA_F95)
+ if(LAPACK95_LIBRARIES)
+ set(LAPACK95_FOUND TRUE)
+ else(LAPACK95_LIBRARIES)
+ set(LAPACK95_FOUND FALSE)
+ endif(LAPACK95_LIBRARIES)
+ if(NOT LAPACK_FIND_QUIETLY)
+ if(LAPACK95_FOUND)
+ message(STATUS "A library with LAPACK95 API found.")
+ else(LAPACK95_FOUND)
+ if(LAPACK_FIND_REQUIRED)
+ message(FATAL_ERROR
+ "A required library with LAPACK95 API not found. Please specify library location."
+ )
+ else(LAPACK_FIND_REQUIRED)
+ message(STATUS
+ "A library with LAPACK95 API not found. Please specify library location."
+ )
+ endif(LAPACK_FIND_REQUIRED)
+ endif(LAPACK95_FOUND)
+ endif(NOT LAPACK_FIND_QUIETLY)
+ set(LAPACK_FOUND "${LAPACK95_FOUND}")
+ set(LAPACK_LIBRARIES "${LAPACK95_LIBRARIES}")
+else(BLA_F95)
+ if(LAPACK_LIBRARIES)
+ set(LAPACK_FOUND TRUE)
+ else(LAPACK_LIBRARIES)
+ set(LAPACK_FOUND FALSE)
+ endif(LAPACK_LIBRARIES)
+
+ if(NOT LAPACK_FIND_QUIETLY)
+ if(LAPACK_FOUND)
+ message(STATUS "A library with LAPACK API found.")
+ else(LAPACK_FOUND)
+ if(LAPACK_FIND_REQUIRED)
+ message(FATAL_ERROR
+ "A required library with LAPACK API not found. Please specify library location."
+ )
+ else(LAPACK_FIND_REQUIRED)
+ message(STATUS
+ "A library with LAPACK API not found. Please specify library location."
+ )
+ endif(LAPACK_FIND_REQUIRED)
+ endif(LAPACK_FOUND)
+ endif(NOT LAPACK_FIND_QUIETLY)
+endif(BLA_F95)
+
+set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})