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98 lines
3.7 KiB
CMake
98 lines
3.7 KiB
CMake
# - Try to find FFTW3.
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# Usage: find_package(FFTW3 [COMPONENTS [single double long-double threads]])
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#
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# Variables used by this module:
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# FFTW3_ROOT_DIR - FFTW3 root directory
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# Variables defined by this module:
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# FFTW3_FOUND - system has FFTW3
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# FFTW3_INCLUDE_DIR - the FFTW3 include directory (cached)
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# FFTW3_INCLUDE_DIRS - the FFTW3 include directories
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# (identical to FFTW3_INCLUDE_DIR)
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# FFTW3[FL]?_LIBRARY - the FFTW3 library - double, single(F),
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# long-double(L) precision (cached)
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# FFTW3[FL]?_THREADS_LIBRARY - the threaded FFTW3 library - double, single(F),
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# long-double(L) precision (cached)
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# FFTW3_LIBRARIES - list of all FFTW3 libraries found
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# Copyright (C) 2009-2010
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# ASTRON (Netherlands Institute for Radio Astronomy)
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# P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
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#
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# This file is part of the LOFAR software suite.
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# The LOFAR software suite is free software: you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# The LOFAR software suite is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with the LOFAR software suite. If not, see <http://www.gnu.org/licenses/>.
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#
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# $Id: FindFFTW3.cmake 15918 2010-06-25 11:12:42Z loose $
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# Use double precision by default.
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if (FFTW3_FIND_COMPONENTS MATCHES "^$")
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set (_components double)
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else ()
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set (_components ${FFTW3_FIND_COMPONENTS})
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endif ()
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# Loop over each component.
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set (_libraries)
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foreach (_comp ${_components})
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if (_comp STREQUAL "single")
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list (APPEND _libraries fftw3f)
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elseif (_comp STREQUAL "double")
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list (APPEND _libraries fftw3)
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elseif (_comp STREQUAL "long-double")
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list (APPEND _libraries fftw3l)
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elseif (_comp STREQUAL "threads")
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set (_use_threads ON)
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else (_comp STREQUAL "single")
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message (FATAL_ERROR "FindFFTW3: unknown component `${_comp}' specified. "
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"Valid components are `single', `double', `long-double', and `threads'.")
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endif (_comp STREQUAL "single")
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endforeach (_comp ${_components})
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# If using threads, we need to link against threaded libraries as well - except on Windows.
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if (NOT WIN32 AND _use_threads)
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set (_thread_libs)
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foreach (_lib ${_libraries})
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list (APPEND _thread_libs ${_lib}_threads)
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endforeach (_lib ${_libraries})
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set (_libraries ${_thread_libs} ${_libraries})
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endif (NOT WIN32 AND _use_threads)
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# Keep a list of variable names that we need to pass on to
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# find_package_handle_standard_args().
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set (_check_list)
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# Search for all requested libraries.
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foreach (_lib ${_libraries})
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string (TOUPPER ${_lib} _LIB)
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find_library (${_LIB}_LIBRARY NAMES ${_lib} ${_lib}-3
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HINTS ${FFTW3_ROOT_DIR} PATH_SUFFIXES lib)
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mark_as_advanced (${_LIB}_LIBRARY)
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list (APPEND FFTW3_LIBRARIES ${${_LIB}_LIBRARY})
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list (APPEND _check_list ${_LIB}_LIBRARY)
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endforeach (_lib ${_libraries})
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# Search for the header file.
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find_path (FFTW3_INCLUDE_DIR fftw3.h
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HINTS ${FFTW3_ROOT_DIR} PATH_SUFFIXES include)
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mark_as_advanced (FFTW3_INCLUDE_DIR)
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list(APPEND _check_list FFTW3_INCLUDE_DIR)
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# Handle the QUIETLY and REQUIRED arguments and set FFTW_FOUND to TRUE if
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# all listed variables are TRUE
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include (FindPackageHandleStandardArgs)
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find_package_handle_standard_args (FFTW3 DEFAULT_MSG ${_check_list})
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if (FFTW3_FOUND)
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set (FFTW3_INCLUDE_DIRS ${FFTW3_INCLUDE_DIR})
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endif (FFTW3_FOUND)
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