| 1 | # - Find the FFTW library
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| 2 | #
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| 3 | # Usage:
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| 4 | # find_package(FFTW [REQUIRED] [QUIET] )
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| 5 | #
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| 6 | # It sets the following variables:
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| 7 | # FFTW_FOUND ... true if fftw is found on the system
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| 8 | # FFTW_LIBRARIES ... full path to fftw library
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| 9 | # FFTW_INCLUDES ... fftw include directory
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| 10 | #
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| 11 | # The following variables will be checked by the function
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| 12 | # FFTW_USE_STATIC_LIBS ... if true, only static libraries are found
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| 13 | # FFTW_ROOT ... if set, the libraries are exclusively searched
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| 14 | # under this path
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| 15 | # FFTW_LIBRARY ... fftw library to use
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| 16 | # FFTW_INCLUDE_DIR ... fftw include directory
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| 17 | #
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| 18 |
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| 19 | #If environment variable FFTWDIR is specified, it has same effect as FFTW_ROOT
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| 20 | if( NOT FFTW_ROOT AND ENV{FFTWDIR} )
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| 21 | set( FFTW_ROOT $ENV{FFTWDIR} )
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| 22 | endif()
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| 23 |
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| 24 | # Check if we can use PkgConfig
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| 25 | find_package(PkgConfig)
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| 26 |
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| 27 | #Determine from PKG
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| 28 | if( PKG_CONFIG_FOUND AND NOT FFTW_ROOT )
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| 29 | pkg_check_modules( PKG_FFTW QUIET "fftw3" )
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| 30 | endif()
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| 31 |
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| 32 | #Check whether to search static or dynamic libs
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| 33 | set( CMAKE_FIND_LIBRARY_SUFFIXES_SAV ${CMAKE_FIND_LIBRARY_SUFFIXES} )
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| 34 |
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| 35 | if( ${FFTW_USE_STATIC_LIBS} )
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| 36 | set( CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX} )
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| 37 | else()
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| 38 | set( CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_SHARED_LIBRARY_SUFFIX} )
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| 39 | endif()
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| 40 |
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| 41 | if( FFTW_ROOT )
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| 42 |
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| 43 | #find libs
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| 44 | find_library(
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| 45 | FFTW_LIB
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| 46 | NAMES "fftw3"
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| 47 | PATHS ${FFTW_ROOT}
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| 48 | PATH_SUFFIXES "lib" "lib64"
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| 49 | NO_DEFAULT_PATH
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| 50 | )
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| 51 |
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| 52 | find_library(
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| 53 | FFTWF_LIB
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| 54 | NAMES "fftw3f"
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| 55 | PATHS ${FFTW_ROOT}
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| 56 | PATH_SUFFIXES "lib" "lib64"
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| 57 | NO_DEFAULT_PATH
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| 58 | )
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| 59 |
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| 60 | find_library(
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| 61 | FFTWL_LIB
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| 62 | NAMES "fftw3l"
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| 63 | PATHS ${FFTW_ROOT}
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| 64 | PATH_SUFFIXES "lib" "lib64"
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| 65 | NO_DEFAULT_PATH
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| 66 | )
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| 67 |
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| 68 | #find includes
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| 69 | find_path(
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| 70 | FFTW_INCLUDES
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| 71 | NAMES "fftw3.h"
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| 72 | PATHS ${FFTW_ROOT}
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| 73 | PATH_SUFFIXES "include"
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| 74 | NO_DEFAULT_PATH
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| 75 | )
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| 76 |
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| 77 | else()
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| 78 |
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| 79 | find_library(
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| 80 | FFTW_LIB
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| 81 | NAMES "fftw3"
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| 82 | PATHS ${PKG_FFTW_LIBRARY_DIRS} ${LIB_INSTALL_DIR}
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| 83 | )
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| 84 |
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| 85 | find_library(
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| 86 | FFTWF_LIB
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| 87 | NAMES "fftw3f"
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| 88 | PATHS ${PKG_FFTW_LIBRARY_DIRS} ${LIB_INSTALL_DIR}
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| 89 | )
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| 90 |
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| 91 |
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| 92 | find_library(
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| 93 | FFTWL_LIB
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| 94 | NAMES "fftw3l"
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| 95 | PATHS ${PKG_FFTW_LIBRARY_DIRS} ${LIB_INSTALL_DIR}
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| 96 | )
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| 97 |
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| 98 | find_path(
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| 99 | FFTW_INCLUDES
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| 100 | NAMES "fftw3.h"
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| 101 | PATHS ${PKG_FFTW_INCLUDE_DIRS} ${INCLUDE_INSTALL_DIR}
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| 102 | )
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| 103 |
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| 104 | endif( FFTW_ROOT )
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| 105 |
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| 106 | set(FFTW_LIBRARIES ${FFTW_LIB} ${FFTWF_LIB})
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| 107 |
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| 108 | if(FFTWL_LIB)
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| 109 | set(FFTW_LIBRARIES ${FFTW_LIBRARIES} ${FFTWL_LIB})
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| 110 | endif()
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| 111 |
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| 112 | set( CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES_SAV} )
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| 113 |
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| 114 | include(FindPackageHandleStandardArgs)
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| 115 | find_package_handle_standard_args(FFTW DEFAULT_MSG
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| 116 | FFTW_INCLUDES FFTW_LIBRARIES)
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| 117 |
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| 118 | mark_as_advanced(FFTW_INCLUDES FFTW_LIBRARIES FFTW_LIB FFTWF_LIB FFTWL_LIB)
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| 119 |
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