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#.rst:
# FindKissFFT
# ------------
# Finds the KissFFT as a Fast Fourier Transformation (FFT) library
#
# This will define the following variables:
#
# KISSFFT_FOUND - System has KissFFT
# KISSFFT_INCLUDE_DIRS - the KissFFT include directory
# KISSFFT_LIBRARIES - the KissFFT libraries
#
if(ENABLE_INTERNAL_KISSFFT)
# KissFFT is located in xbmc/contrib/kissfft
set(KISSFFT_FOUND TRUE)
set(KISSFFT_INCLUDE_DIRS "${CMAKE_SOURCE_DIR}/xbmc/contrib")
message(STATUS "Found KissFFT: ${KISSFFT_INCLUDE_DIRS}")
else()
find_package(PkgConfig)
if(PKG_CONFIG_FOUND)
pkg_check_modules(PC_KISSFFT kissfft QUIET)
endif()
find_path(KISSFFT_INCLUDE_DIR kissfft/kiss_fft.h kissfft/kiss_fftr.h
PATHS ${PC_KISSFFT_INCLUDEDIR})
find_library(KISSFFT_LIBRARY NAMES kissfft-float kissfft-int32 kissfft-int16 kissfft-simd
PATHS ${PC_KISSFFT_LIBDIR})
# Check if all REQUIRED_VARS are satisfied and set KISSFFT_FOUND
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(KissFFT REQUIRED_VARS KISSFFT_INCLUDE_DIR KISSFFT_LIBRARY)
if(KISSFFT_FOUND)
set(KISSFFT_INCLUDE_DIRS ${KISSFFT_INCLUDE_DIR})
set(KISSFFT_LIBRARIES ${KISSFFT_LIBRARY})
if(NOT TARGET kissfft)
add_library(kissfft UNKNOWN IMPORTED)
set_target_properties(kissfft PROPERTIES
IMPORTED_LOCATION "${KISSFFT_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${KISSFFT_INCLUDE_DIR}")
endif()
endif()
mark_as_advanced(KISSFFT_INCLUDE_DIR KISSFFT_LIBRARY)
endif()
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