mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-27 07:29:52 +08:00
274 lines
9.7 KiB
CMake
274 lines
9.7 KiB
CMake
|
# Find LAPACK library
|
||
|
|
#
|
||
|
|
# This module finds an installed library that implements the LAPACK
|
||
|
|
# linear-algebra interface (see http://www.netlib.org/lapack/).
|
||
|
|
# The approach follows mostly 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_INCLUDE_DIR - Directories containing the LAPACK header files
|
||
|
|
# LAPACK_DEFINITIONS - Compilation options to use LAPACK
|
||
|
|
# LAPACK_LINKER_FLAGS - Linker flags to use LAPACK (excluding -l
|
||
|
|
# and -L).
|
||
|
|
# LAPACK_LIBRARIES_DIR - Directories containing the LAPACK libraries.
|
||
|
|
# May be null if LAPACK_LIBRARIES contains libraries name using full path.
|
||
|
|
# LAPACK_LIBRARIES - List of libraries to link against LAPACK interface.
|
||
|
|
# May be null if the compiler supports auto-link (e.g. VC++).
|
||
|
|
# LAPACK_USE_FILE - The name of the cmake module to include to compile
|
||
|
|
# applications or libraries using LAPACK.
|
||
|
|
#
|
||
|
|
# This module was modified by CGAL team:
|
||
|
|
# - find libraries for a C++ compiler, instead of Fortran
|
||
|
|
# - added LAPACK_INCLUDE_DIR, LAPACK_DEFINITIONS and LAPACK_LIBRARIES_DIR
|
||
|
|
# - removed LAPACK95_LIBRARIES
|
||
|
|
|
||
|
|
|
||
|
|
include(CheckFunctionExists)
|
||
|
|
|
||
|
|
# 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_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 and DEFINITIONS to the required definitions.
|
||
|
|
# 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.
|
||
|
|
macro(check_lapack_libraries DEFINITIONS LIBRARIES _prefix _name _flags _list _blas _path)
|
||
|
|
#message("DEBUG: check_lapack_libraries(${_list} in ${_path} with ${_blas})")
|
||
|
|
|
||
|
|
# Check for the existence of the libraries given by _list
|
||
|
|
set(_libraries_found TRUE)
|
||
|
|
set(_libraries_work FALSE)
|
||
|
|
set(${DEFINITIONS} "")
|
||
|
|
set(${LIBRARIES} "")
|
||
|
|
set(_combined_name)
|
||
|
|
foreach(_library ${_list})
|
||
|
|
set(_combined_name ${_combined_name}_${_library})
|
||
|
|
|
||
|
|
if(_libraries_found)
|
||
|
|
# search first in ${_path}
|
||
|
|
find_library(${_prefix}_${_library}_LIBRARY
|
||
|
|
NAMES ${_library}
|
||
|
|
PATHS ${_path} NO_DEFAULT_PATH
|
||
|
|
)
|
||
|
|
# if not found, search in environment variables and system
|
||
|
|
if ( WIN32 )
|
||
|
|
find_library(${_prefix}_${_library}_LIBRARY
|
||
|
|
NAMES ${_library}
|
||
|
|
PATHS ENV LIB
|
||
|
|
)
|
||
|
|
elseif ( APPLE )
|
||
|
|
find_library(${_prefix}_${_library}_LIBRARY
|
||
|
|
NAMES ${_library}
|
||
|
|
PATHS /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV DYLD_LIBRARY_PATH
|
||
|
|
)
|
||
|
|
else ()
|
||
|
|
find_library(${_prefix}_${_library}_LIBRARY
|
||
|
|
NAMES ${_library}
|
||
|
|
PATHS /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV LD_LIBRARY_PATH
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
mark_as_advanced(${_prefix}_${_library}_LIBRARY)
|
||
|
|
set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY})
|
||
|
|
set(_libraries_found ${${_prefix}_${_library}_LIBRARY})
|
||
|
|
endif(_libraries_found)
|
||
|
|
endforeach(_library ${_list})
|
||
|
|
if(_libraries_found)
|
||
|
|
set(_libraries_found ${${LIBRARIES}})
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Test this combination of libraries with the Fortran/f2c interface.
|
||
|
|
# We test the Fortran interface first as it is well standardized.
|
||
|
|
if(_libraries_found AND NOT _libraries_work)
|
||
|
|
set(${DEFINITIONS} "-D${_prefix}_USE_F2C")
|
||
|
|
set(${LIBRARIES} ${_libraries_found})
|
||
|
|
# Some C++ linkers require the f2c library to link with Fortran libraries.
|
||
|
|
# I do not know which ones, thus I just add the f2c library if it is available.
|
||
|
|
find_package( F2C QUIET )
|
||
|
|
if ( F2C_FOUND )
|
||
|
|
set(${DEFINITIONS} ${${DEFINITIONS}} ${F2C_DEFINITIONS})
|
||
|
|
set(${LIBRARIES} ${${LIBRARIES}} ${F2C_LIBRARIES})
|
||
|
|
endif()
|
||
|
|
set(CMAKE_REQUIRED_DEFINITIONS ${${DEFINITIONS}})
|
||
|
|
set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas})
|
||
|
|
#message("DEBUG: CMAKE_REQUIRED_DEFINITIONS = ${CMAKE_REQUIRED_DEFINITIONS}")
|
||
|
|
#message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
|
||
|
|
# Check if function exists with f2c calling convention (ie a trailing underscore)
|
||
|
|
check_function_exists(${_name}_ ${_prefix}_${_name}_${_combined_name}_f2c_WORKS)
|
||
|
|
set(CMAKE_REQUIRED_DEFINITIONS} "")
|
||
|
|
set(CMAKE_REQUIRED_LIBRARIES "")
|
||
|
|
mark_as_advanced(${_prefix}_${_name}_${_combined_name}_f2c_WORKS)
|
||
|
|
set(_libraries_work ${${_prefix}_${_name}_${_combined_name}_f2c_WORKS})
|
||
|
|
endif(_libraries_found AND NOT _libraries_work)
|
||
|
|
|
||
|
|
# If not found, test this combination of libraries with a C interface.
|
||
|
|
# A few implementations (ie ACML) provide a C interface. Unfortunately, there is no standard.
|
||
|
|
if(_libraries_found AND NOT _libraries_work)
|
||
|
|
set(${DEFINITIONS} "")
|
||
|
|
set(${LIBRARIES} ${_libraries_found})
|
||
|
|
set(CMAKE_REQUIRED_DEFINITIONS "")
|
||
|
|
set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas})
|
||
|
|
#message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
|
||
|
|
check_function_exists(${_name} ${_prefix}_${_name}${_combined_name}_WORKS)
|
||
|
|
set(CMAKE_REQUIRED_LIBRARIES "")
|
||
|
|
mark_as_advanced(${_prefix}_${_name}${_combined_name}_WORKS)
|
||
|
|
set(_libraries_work ${${_prefix}_${_name}${_combined_name}_WORKS})
|
||
|
|
endif(_libraries_found AND NOT _libraries_work)
|
||
|
|
|
||
|
|
# on failure
|
||
|
|
if(NOT _libraries_work)
|
||
|
|
set(${DEFINITIONS} "")
|
||
|
|
set(${LIBRARIES} FALSE)
|
||
|
|
endif()
|
||
|
|
#message("DEBUG: ${DEFINITIONS} = ${${DEFINITIONS}}")
|
||
|
|
#message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
|
||
|
|
endmacro(check_lapack_libraries)
|
||
|
|
|
||
|
|
|
||
|
|
#
|
||
|
|
# main
|
||
|
|
#
|
||
|
|
|
||
|
|
# LAPACK requires BLAS
|
||
|
|
if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
|
||
|
|
find_package(BLAS)
|
||
|
|
else()
|
||
|
|
find_package(BLAS REQUIRED)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if (NOT BLAS_FOUND)
|
||
|
|
|
||
|
|
message(STATUS "LAPACK requires BLAS.")
|
||
|
|
set(LAPACK_FOUND FALSE)
|
||
|
|
|
||
|
|
# Is it already configured?
|
||
|
|
elseif (LAPACK_LIBRARIES_DIR OR LAPACK_LIBRARIES)
|
||
|
|
|
||
|
|
set(LAPACK_FOUND TRUE)
|
||
|
|
|
||
|
|
else()
|
||
|
|
|
||
|
|
# reset variables
|
||
|
|
set( LAPACK_INCLUDE_DIR "" )
|
||
|
|
set( LAPACK_DEFINITIONS "" )
|
||
|
|
set( LAPACK_LINKER_FLAGS "" ) # unused (yet)
|
||
|
|
set( LAPACK_LIBRARIES "" )
|
||
|
|
set( LAPACK_LIBRARIES_DIR "" )
|
||
|
|
|
||
|
|
#
|
||
|
|
# If Unix, search for LAPACK function in possible libraries
|
||
|
|
#
|
||
|
|
|
||
|
|
#intel mkl lapack?
|
||
|
|
if(NOT LAPACK_LIBRARIES)
|
||
|
|
check_lapack_libraries(
|
||
|
|
LAPACK_DEFINITIONS
|
||
|
|
LAPACK_LIBRARIES
|
||
|
|
LAPACK
|
||
|
|
cheev
|
||
|
|
""
|
||
|
|
"mkl_lapack"
|
||
|
|
"${BLAS_LIBRARIES}"
|
||
|
|
"${CGAL_TAUCS_LIBRARIES_DIR} ENV LAPACK_LIB_DIR"
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
#acml lapack?
|
||
|
|
if(NOT LAPACK_LIBRARIES)
|
||
|
|
check_lapack_libraries(
|
||
|
|
LAPACK_DEFINITIONS
|
||
|
|
LAPACK_LIBRARIES
|
||
|
|
LAPACK
|
||
|
|
cheev
|
||
|
|
""
|
||
|
|
"acml"
|
||
|
|
"${BLAS_LIBRARIES}"
|
||
|
|
"${CGAL_TAUCS_LIBRARIES_DIR} ENV LAPACK_LIB_DIR"
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Apple LAPACK library?
|
||
|
|
if(NOT LAPACK_LIBRARIES)
|
||
|
|
check_lapack_libraries(
|
||
|
|
LAPACK_DEFINITIONS
|
||
|
|
LAPACK_LIBRARIES
|
||
|
|
LAPACK
|
||
|
|
cheev
|
||
|
|
""
|
||
|
|
"Accelerate"
|
||
|
|
"${BLAS_LIBRARIES}"
|
||
|
|
"${CGAL_TAUCS_LIBRARIES_DIR} ENV LAPACK_LIB_DIR"
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if ( NOT LAPACK_LIBRARIES )
|
||
|
|
check_lapack_libraries(
|
||
|
|
LAPACK_DEFINITIONS
|
||
|
|
LAPACK_LIBRARIES
|
||
|
|
LAPACK
|
||
|
|
cheev
|
||
|
|
""
|
||
|
|
"vecLib"
|
||
|
|
"${BLAS_LIBRARIES}"
|
||
|
|
"${CGAL_TAUCS_LIBRARIES_DIR} ENV LAPACK_LIB_DIR"
|
||
|
|
)
|
||
|
|
endif ( NOT LAPACK_LIBRARIES )
|
||
|
|
|
||
|
|
# Generic LAPACK library?
|
||
|
|
# This configuration *must* be the last try as this library is notably slow.
|
||
|
|
if ( NOT LAPACK_LIBRARIES )
|
||
|
|
check_lapack_libraries(
|
||
|
|
LAPACK_DEFINITIONS
|
||
|
|
LAPACK_LIBRARIES
|
||
|
|
LAPACK
|
||
|
|
cheev
|
||
|
|
""
|
||
|
|
"lapack"
|
||
|
|
"${BLAS_LIBRARIES}"
|
||
|
|
"${CGAL_TAUCS_LIBRARIES_DIR} ENV LAPACK_LIB_DIR"
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(LAPACK_LIBRARIES_DIR OR 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(LAPACK_FOUND)
|
||
|
|
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(LAPACK_FOUND)
|
||
|
|
endif(NOT LAPACK_FIND_QUIETLY)
|
||
|
|
|
||
|
|
# Add variables to cache
|
||
|
|
set( LAPACK_INCLUDE_DIR "${LAPACK_INCLUDE_DIR}"
|
||
|
|
CACHE PATH "Directories containing the LAPACK header files" FORCE )
|
||
|
|
set( LAPACK_DEFINITIONS "${LAPACK_DEFINITIONS}"
|
||
|
|
CACHE STRING "Compilation options to use LAPACK" FORCE )
|
||
|
|
set( LAPACK_LINKER_FLAGS "${LAPACK_LINKER_FLAGS}"
|
||
|
|
CACHE STRING "Linker flags to use LAPACK" FORCE )
|
||
|
|
set( LAPACK_LIBRARIES "${LAPACK_LIBRARIES}"
|
||
|
|
CACHE FILEPATH "LAPACK libraries name" FORCE )
|
||
|
|
set( LAPACK_LIBRARIES_DIR "${LAPACK_LIBRARIES_DIR}"
|
||
|
|
CACHE PATH "Directories containing the LAPACK libraries" FORCE )
|
||
|
|
|
||
|
|
#message("DEBUG: LAPACK_INCLUDE_DIR = ${LAPACK_INCLUDE_DIR}")
|
||
|
|
#message("DEBUG: LAPACK_DEFINITIONS = ${LAPACK_DEFINITIONS}")
|
||
|
|
#message("DEBUG: LAPACK_LINKER_FLAGS = ${LAPACK_LINKER_FLAGS}")
|
||
|
|
#message("DEBUG: LAPACK_LIBRARIES = ${LAPACK_LIBRARIES}")
|
||
|
|
#message("DEBUG: LAPACK_LIBRARIES_DIR = ${LAPACK_LIBRARIES_DIR}")
|
||
|
|
#message("DEBUG: LAPACK_FOUND = ${LAPACK_FOUND}")
|
||
|
|
|
||
|
|
endif(NOT BLAS_FOUND)
|