cart-elc

Source code for CART-ELC
git clone git://git.laack.co/cart-elc.git
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FindFFTW.cmake (2783B)

      1 # - Find the FFTW library
      2 #
      3 # Usage:
      4 #   find_package(FFTW [REQUIRED] [QUIET] )
      5 #     
      6 # It sets the following variables:
      7 #   FFTW_FOUND               ... true if fftw is found on the system
      8 #   FFTW_LIBRARIES           ... full path to fftw library
      9 #   FFTW_INCLUDES            ... fftw include directory
     10 #
     11 # The following variables will be checked by the function
     12 #   FFTW_USE_STATIC_LIBS    ... if true, only static libraries are found
     13 #   FFTW_ROOT               ... if set, the libraries are exclusively searched
     14 #                               under this path
     15 #   FFTW_LIBRARY            ... fftw library to use
     16 #   FFTW_INCLUDE_DIR        ... fftw include directory
     17 #
     18 
     19 #If environment variable FFTWDIR is specified, it has same effect as FFTW_ROOT
     20 if( NOT FFTW_ROOT AND ENV{FFTWDIR} )
     21   set( FFTW_ROOT $ENV{FFTWDIR} )
     22 endif()
     23 
     24 # Check if we can use PkgConfig
     25 include(CMakeFindDependencyMacro)
     26 find_dependency(PkgConfig)
     27 
     28 #Determine from PKG
     29 if( PKG_CONFIG_FOUND AND NOT FFTW_ROOT )
     30   pkg_check_modules( PKG_FFTW QUIET "fftw3" )
     31 endif()
     32 
     33 #Check whether to search static or dynamic libs
     34 set( CMAKE_FIND_LIBRARY_SUFFIXES_SAV ${CMAKE_FIND_LIBRARY_SUFFIXES} )
     35 
     36 if( ${FFTW_USE_STATIC_LIBS} )
     37   set( CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX} )
     38 else()
     39   set( CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_SHARED_LIBRARY_SUFFIX} )
     40 endif()
     41 
     42 if( FFTW_ROOT )
     43 
     44   #find libs
     45   find_library(
     46     FFTW_LIB
     47     NAMES "fftw3"
     48     PATHS ${FFTW_ROOT}
     49     PATH_SUFFIXES "lib" "lib64"
     50     NO_DEFAULT_PATH
     51   )
     52 
     53   find_library(
     54     FFTWF_LIB
     55     NAMES "fftw3f"
     56     PATHS ${FFTW_ROOT}
     57     PATH_SUFFIXES "lib" "lib64"
     58     NO_DEFAULT_PATH
     59   )
     60 
     61   find_library(
     62     FFTWL_LIB
     63     NAMES "fftw3l"
     64     PATHS ${FFTW_ROOT}
     65     PATH_SUFFIXES "lib" "lib64"
     66     NO_DEFAULT_PATH
     67   )
     68 
     69   #find includes
     70   find_path(
     71     FFTW_INCLUDES
     72     NAMES "fftw3.h"
     73     PATHS ${FFTW_ROOT}
     74     PATH_SUFFIXES "include"
     75     NO_DEFAULT_PATH
     76   )
     77 
     78 else()
     79 
     80   find_library(
     81     FFTW_LIB
     82     NAMES "fftw3"
     83     PATHS ${PKG_FFTW_LIBRARY_DIRS} ${LIB_INSTALL_DIR}
     84   )
     85 
     86   find_library(
     87     FFTWF_LIB
     88     NAMES "fftw3f"
     89     PATHS ${PKG_FFTW_LIBRARY_DIRS} ${LIB_INSTALL_DIR}
     90   )
     91 
     92 
     93   find_library(
     94     FFTWL_LIB
     95     NAMES "fftw3l"
     96     PATHS ${PKG_FFTW_LIBRARY_DIRS} ${LIB_INSTALL_DIR}
     97   )
     98 
     99   find_path(
    100     FFTW_INCLUDES
    101     NAMES "fftw3.h"
    102     PATHS ${PKG_FFTW_INCLUDE_DIRS} ${INCLUDE_INSTALL_DIR}
    103   )
    104 
    105 endif()
    106 
    107 set(FFTW_LIBRARIES ${FFTW_LIB} ${FFTWF_LIB})
    108 
    109 if(FFTWL_LIB)
    110   set(FFTW_LIBRARIES ${FFTW_LIBRARIES} ${FFTWL_LIB})
    111 endif()
    112 
    113 set( CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES_SAV} )
    114 
    115 include(FindPackageHandleStandardArgs)
    116 find_package_handle_standard_args(FFTW DEFAULT_MSG
    117                                   FFTW_INCLUDES FFTW_LIBRARIES)
    118 
    119 mark_as_advanced(FFTW_INCLUDES FFTW_LIBRARIES FFTW_LIB FFTWF_LIB FFTWL_LIB)
    120