130 lines
3.1 KiB
CMake
130 lines
3.1 KiB
CMake
# Filename: FindFFTW.cmake
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# Author: Unknown (???), kestred (29 Nov, 2013)
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#
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# Usage:
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# find_package(FFTW [REQUIRED] [QUIET])
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#
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# It sets the following variables:
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# HAVE_FFTW - true if fftw is found on the system
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# FFTW_IPATH - the fftw include directory
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# FFTW_LPATH - the fftw library directory
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#
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# The following variables will be checked by the function
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# FFTW_USE_STATIC_LIBS - if true, only static libraries are found
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# FFTW_ROOT - if set, the libraries are exclusively searched under this path
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#
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if(FFTW_IPATH AND FFTW_LPATH)
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set(HAVE_FFTW TRUE)
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else()
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# Check if we can use PkgConfig
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find_package(PkgConfig QUIET)
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#Determine from PKG
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if(PKG_CONFIG_FOUND AND NOT FFTW_ROOT)
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pkg_check_modules(PKG_FFTW QUIET "fftw3")
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endif()
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#Check whether to search static or dynamic libs
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set(CMAKE_FIND_LIBRARY_SUFFIXES_SAVED ${CMAKE_FIND_LIBRARY_SUFFIXES})
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if(${FFTW_USE_STATIC_LIBS})
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set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX})
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else()
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set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_SHARED_LIBRARY_SUFFIX})
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endif()
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if(FFTW_ROOT)
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# Try to find headers under root
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find_path(FFTW_IPATH
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NAMES "fftw3.h"
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PATHS ${FFTW_ROOT}
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PATH_SUFFIXES "include"
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NO_DEFAULT_PATH
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)
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# Try to find library under root
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find_library(FFTW_LIBRARY
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NAMES "fftw3"
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PATHS ${FFTW_ROOT}
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PATH_SUFFIXES "lib" "lib64"
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NO_DEFAULT_PATH
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)
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find_library(FFTW_FFTWF_LIBRARY
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NAMES "fftw3f"
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PATHS ${FFTW_ROOT}
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PATH_SUFFIXES "lib" "lib64"
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NO_DEFAULT_PATH
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)
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find_library(FFTW_FFTWL_LIBRARY
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NAMES "fftw3l"
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PATHS ${FFTW_ROOT}
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PATH_SUFFIXES "lib" "lib64"
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NO_DEFAULT_PATH
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)
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else()
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# Find headers the normal way
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find_path(FFTW_IPATH
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NAMES "fftw3.h"
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PATHS ${PKG_FFTW_INCLUDE_DIRS}
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${INCLUDE_INSTALL_DIR}
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"/usr/include"
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"/usr/local/include"
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PATH_SUFFIXES "" "fftw"
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)
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# Find library the normal way
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find_library(FFTW_LIBRARY
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NAMES "fftw3"
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PATHS ${PKG_FFTW_LIBRARY_DIRS}
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${LIB_INSTALL_DIR}
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"/usr"
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"/usr/local"
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PATH_SUFFIXES "" "lib" "lib32" "lib64"
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)
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find_library(FFTW_FFTWF_LIBRARY
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NAMES "fftw3f"
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PATHS ${PKG_FFTW_LIBRARY_DIRS}
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${LIB_INSTALL_DIR}
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"/usr"
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"/usr/local"
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PATH_SUFFIXES "" "lib" "lib32" "lib64"
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)
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find_library(FFTW_FFTWL_LIBRARY
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NAMES "fftw3l"
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PATHS ${PKG_FFTW_LIBRARY_DIRS}
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${LIB_INSTALL_DIR}
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"/usr"
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"/usr/local"
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PATH_SUFFIXES "" "lib" "lib32" "lib64"
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)
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endif()
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# Cleanup after the library suffixes
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set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES_SAVED})
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unset(CMAKE_FIND_LIBRARY_SUFFIXES_SAVED)
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# Get the directory conaining FFTW_LIBRARY
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get_filename_component(FFTW_LIBRARY_DIR "${FFTW_LIBRARY}" PATH)
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set(FFTW_LPATH "${FFTW_LIBRARY_DIR}" CACHE PATH "The path to fftw's library directory.") # Library path
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# Check if we have everything we need
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if(FFTW_IPATH AND FFTW_LPATH)
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set(HAVE_FFTW TRUE)
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endif()
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unset(FFTW_LIBRARY_DIR)
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unset(FFTW_LIBRARY CACHE)
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mark_as_advanced(FFTW_IPATH)
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mark_as_advanced(FFTW_LPATH)
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mark_as_advanced(FFTW_FFTWF_LIBRARY)
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mark_as_advanced(FFTW_FFTWL_LIBRARY)
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endif()
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