songsenand
/
cgal
mirror of https://github.com/CGAL/cgal
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
cgal/Installation/cmake/modules/FindLAPACK.cmake

266 lines
8.7 KiB
CMake
Raw Blame History

# 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_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++).
#
# This module was modified by CGAL team:
# - find LAPACK library shipped with TAUCS
# - find libraries for a C++ compiler, instead of Fortran
# - added LAPACK_DEFINITIONS and LAPACK_LIBRARIES_DIR
# - removed LAPACK95_LIBRARIES
#
# TODO (CGAL):
# - use a C++ compiler instead of a Fortran one
# - try to be compatible with CMake 2.4
# - find CLAPACK (http://www.netlib.org/clapack)?
# CheckFortranFunctionExists is new in CMake 2.6
CMAKE_MINIMUM_REQUIRED(VERSION 2.6 FATAL_ERROR)
include(CheckFortranFunctionExists)
include(GeneratorSpecificSettings)
# 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.
macro(check_lapack_libraries LIBRARIES _prefix _name _flags _list _blas _path)
#message("DEBUG: check_lapack_libraries(${_list} in ${_path})")
set(_libraries_work TRUE)
set(${LIBRARIES})
set(_combined_name)
foreach(_library ${_list})
set(_combined_name ${_combined_name}_${_library})
if(_libraries_work)
if ( WIN32 )
find_library(${_prefix}_${_library}_LIBRARY
NAMES ${_library}
PATHS ${_path} ENV LIB
)
endif ( WIN32 )
if ( APPLE )
find_library(${_prefix}_${_library}_LIBRARY
NAMES ${_library}
PATHS ${_path} /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV DYLD_LIBRARY_PATH
)
else ( APPLE )
find_library(${_prefix}_${_library}_LIBRARY
NAMES ${_library}
PATHS ${_path} /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV LD_LIBRARY_PATH
)
endif( APPLE )
mark_as_advanced(${_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.
set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas})
#message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
check_fortran_function_exists(${_name} ${_prefix}${_combined_name}_WORKS)
set(CMAKE_REQUIRED_LIBRARIES)
mark_as_advanced(${_prefix}${_combined_name}_WORKS)
set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
endif(_libraries_work)
if(NOT _libraries_work)
set(${LIBRARIES} FALSE)
endif(NOT _libraries_work)
#message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
endmacro(check_lapack_libraries)
#
# main
#
# Is it already configured?
if (LAPACK_LIBRARIES_DIR OR LAPACK_LIBRARIES)
set(LAPACK_FOUND TRUE)
else(LAPACK_LIBRARIES_DIR OR LAPACK_LIBRARIES)
# unused (yet)
set(LAPACK_LINKER_FLAGS)
# Look first for the LAPACK distributed with CGAL in auxiliary/taucs.
# Set CGAL_TAUCS_FOUND, CGAL_TAUCS_INCLUDE_DIR and CGAL_TAUCS_LIBRARIES_DIR.
include(CGAL_Locate_CGAL_TAUCS)
# Search for LAPACK libraries in ${CGAL_TAUCS_LIBRARIES_DIR} (LAPACK shipped with CGAL),
# else in $LAPACK_LIB_DIR environment variable.
if(CGAL_TAUCS_FOUND AND AUTO_LINK_ENABLED)
# if VC++: done
#message("DEBUG: LAPACK: VC++ case")
set( LAPACK_LIBRARIES_DIR "${CGAL_TAUCS_LIBRARIES_DIR}"
CACHE FILEPATH "Directories containing the LAPACK libraries")
else(CGAL_TAUCS_FOUND AND AUTO_LINK_ENABLED)
#message("DEBUG: LAPACK: Unix case")
# If Unix, we need a Fortran compiler
if (NOT MSVC) # safety: enable_language(Fortran) is broken for VC++
enable_language(Fortran OPTIONAL)
endif()
# LAPACK requires BLAS
find_package(BLAS QUIET)
if(CMAKE_Fortran_COMPILER_WORKS AND BLAS_FOUND)
#intel mkl lapack?
if(NOT LAPACK_LIBRARIES)
check_lapack_libraries(
LAPACK_LIBRARIES
LAPACK
cheev
""
"mkl_lapack"
"${BLAS_LIBRARIES}"
"${CGAL_TAUCS_LIBRARIES_DIR} $ENV{LAPACK_LIB_DIR}"
)
if(LAPACK_LIBRARIES)
# Use f2c calling convention
set( LAPACK_DEFINITIONS "-DCGAL_USE_F2C" )
endif()
endif()
#acml lapack?
if(NOT LAPACK_LIBRARIES)
check_lapack_libraries(
LAPACK_LIBRARIES
LAPACK
cheev
""
"acml"
"${BLAS_LIBRARIES}"
"${CGAL_TAUCS_LIBRARIES_DIR} $ENV{LAPACK_LIB_DIR}"
)
endif()
# Apple LAPACK library?
if(NOT LAPACK_LIBRARIES)
check_lapack_libraries(
LAPACK_LIBRARIES
LAPACK
cheev
""
"Accelerate"
"${BLAS_LIBRARIES}"
"${CGAL_TAUCS_LIBRARIES_DIR} $ENV{LAPACK_LIB_DIR}"
)
if(LAPACK_LIBRARIES)
# Use f2c calling convention
set( LAPACK_DEFINITIONS "-DCGAL_USE_F2C" )
endif()
endif()
if ( NOT LAPACK_LIBRARIES )
check_lapack_libraries(
LAPACK_LIBRARIES
LAPACK
cheev
""
"vecLib"
"${BLAS_LIBRARIES}"
"${CGAL_TAUCS_LIBRARIES_DIR} $ENV{LAPACK_LIB_DIR}"
)
if(LAPACK_LIBRARIES)
# Use f2c calling convention
set( LAPACK_DEFINITIONS "-DCGAL_USE_F2C" )
endif()
endif ( NOT LAPACK_LIBRARIES )
# Generic LAPACK library?
# This configuration *must* be the last try as this library is notably slow.
if ( NOT LAPACK_LIBRARIES )
check_lapack_libraries(
LAPACK_LIBRARIES
LAPACK
cheev
""
"lapack"
"${BLAS_LIBRARIES}"
"${CGAL_TAUCS_LIBRARIES_DIR} $ENV{LAPACK_LIB_DIR}"
)
if(LAPACK_LIBRARIES)
# Use f2c calling convention
set( LAPACK_DEFINITIONS "-DCGAL_USE_F2C" )
endif()
endif()
else(CMAKE_Fortran_COMPILER_WORKS AND BLAS_FOUND)
message(STATUS "FindLAPACK.cmake requires a Fortran compiler")
endif(CMAKE_Fortran_COMPILER_WORKS AND BLAS_FOUND)
# Add variables to cache
set( LAPACK_DEFINITIONS "${LAPACK_DEFINITIONS}"
CACHE FILEPATH "Compilation options to use LAPACK" )
set( LAPACK_LINKER_FLAGS "${LAPACK_LINKER_FLAGS}"
CACHE FILEPATH "Linker flags to use LAPACK" )
set( LAPACK_LIBRARIES "${LAPACK_LIBRARIES}"
CACHE FILEPATH "LAPACK libraries name" )
endif(CGAL_TAUCS_FOUND AND AUTO_LINK_ENABLED)
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)
#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(LAPACK_LIBRARIES_DIR OR LAPACK_LIBRARIES)
#mark_as_advanced(LAPACK_DEFINITIONS)
#mark_as_advanced(LAPACK_LINKER_FLAGS)
#mark_as_advanced(LAPACK_LIBRARIES)
#mark_as_advanced(LAPACK_LIBRARIES_DIR)
Reference in New Issue View Git Blame Copy Permalink