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Use find_package COMPONENTS to select shared/static + datatype
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CMakeLists.txt
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CMakeLists.txt
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if(CMAKE_C_COMPILER_ID MATCHES "GNU|Clang|AppleClang")
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add_compile_options(-ffast-math -fomit-frame-pointer
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-W -Wall -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return
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-Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wbad-function-cast
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-Wwrite-strings)
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-W -Wall -Waggregate-return -Wcast-align -Wcast-qual -Wshadow -Wwrite-strings
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"$<$<COMPILE_LANGUAGE:C>:-Wstrict-prototypes;-Wmissing-prototypes;-Wnested-externs;-Wbad-function-cast>")
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endif()
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set(KISSFFT_FIXED_WIDTH_VALID 16 32)
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add_library(kissfft
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kiss_fft.c)
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add_library(kissfft::kissfft ALIAS kissfft)
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target_include_directories(kissfft PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>
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$<INSTALL_INTERFACE:.>)
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
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set(KISSFFT_COMPILE_DEFINITIONS)
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if(KISSFFT_SIMD)
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set(KISSFFT_DATATYPE "${KISSFFT_FLOAT_TYPE}")
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else()
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list(APPEND KISSFFT_COMPILE_DEFINITIONS KISSFFT_FIXED_POINT=${KISSFFT_FIXED_WIDTH})
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set(KISSFFT_DATATYPE "int${KISSFFT_FIXED_WIDTH}_t")
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set(KISSFFT_DATATYPE "int${KISSFFT_FIXED_WIDTH}")
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endif()
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endif()
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if(KISSFFT_OPENMP)
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endif()
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message(STATUS "Building KissFFT with datatype=${KISSFFT_DATATYPE}")
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set(KISSFFT_EXPORT_SUFFIX "")
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if(BUILD_SHARED_LIBS)
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list(APPEND KISSFFT_COMPILE_DEFINITIONS KISS_FFT_SHARED)
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set_target_properties(kissfft PROPERTIES
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C_VISIBILITY_PRESET hidden)
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set(KISSFFT_EXPORT_SUFFIX "-shared")
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else()
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set(KISSFFT_EXPORT_SUFFIX "-static")
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endif()
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target_compile_definitions(kissfft PUBLIC ${KISSFFT_COMPILE_DEFINITIONS})
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set(KISSFFT_OUTPUT_NAME "kissfft_${KISSFFT_DATATYPE}")
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set_target_properties(kissfft PROPERTIES
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OUTPUT_NAME "${KISSFFT_OUTPUT_NAME}"
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DEFINE_SYMBOL KISS_FFT_BUILD
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EXPORT_NAME "kissfit_${KISSFFT_DATATYPE}${KISSFFT_EXPORT_SUFFIX}"
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EXPORT_NAME "kissfft-${KISSFFT_DATATYPE}"
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VERSION ${PROJECT_VERSION})
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add_library(kissfft::kissfft ALIAS kissfft)
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add_library(kissfft::kissff-${KISSFFT_DATATYPE} ALIAS kissfft)
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if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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target_link_libraries(kissfft PRIVATE m)
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endif()
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function(add_kissfft_executable NAME)
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add_executable(${NAME} ${ARGN})
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target_link_libraries(${NAME} PRIVATE kissfft::kissfft)
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set_target_properties(${NAME} PROPERTIES
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OUTPUT_NAME "${NAME}_${KISSFFT_DATATYPE}")
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if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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target_link_libraries(${NAME} PRIVATE m)
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endif()
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set_target_properties(${NAME} PROPERTIES
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OUTPUT_NAME "${NAME}_${KISSFFT_DATATYPE}")
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endfunction()
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option(KISSFFT_TOOLS "Build kissfft tools" ON)
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enable_testing()
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add_subdirectory(test)
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endif()
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option(KISSFFT_INSTALL "Enable kissfft install" ON)
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if (KISSFFT_INSTALL)
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kissfft-config.cmake.in
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kissfft-config.cmake.in
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# kissfft-config.ccmake accept the following components:
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#
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# SHARED/STATIC:
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# This components allows one to choose a shared/static kissfft library.
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# The default is selected by BUILD_SHARED_LIBS.
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# They are to be used exclusively. Using them together is an error.
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#
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# example:
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# find_package(kissfft CONFIG REQUIRED COMPONENTS STATIC)
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#
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# simd/int16/int32/float/double:
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# This components allows one to choose the datatype.
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# When using this component, the target kissfft::kissfft becomes available.
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# When not using this component, you will have to choose the correct kissfft target.
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#
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# example:
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# find_package(kissfft CONFIG REQUIRED)
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# # - kissfft::kissfft-float, kissfft::kissfft-int32_t/ ... are available (if they are installed)
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# # - kissfft::kissfft is not available,
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#
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# find_package(kissfft CONFIG REQUIRED COMPONENTS int32_t)
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# # - kissfft::kissfft-float, kissfft::kissfft-int32_t/ ... are available (if they are installed)
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# # - kissfft::kissfft is available (as an alias for kissfft::kissfft-int32_t),
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@PACKAGE_INIT@
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cmake_minimum_required(VERSION 3.3)
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# Set include glob of config files using SHARED/static component, BUILD_SHARED_LIBS by default
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set(_kissfft_shared_detected OFF)
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set(_kissfft_shared ${BUILD_SHARED_LIBS})
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if("SHARED" IN_LIST kissfft_FIND_COMPONENTS)
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set(_kissfft_shared_detected ON)
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set(_kissfft_shared ON)
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endif()
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if("STATIC" IN_LIST kissfft_FIND_COMPONENTS)
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if(_kissfft_shared_detected)
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message(FATAL_ERROR "SHARED and STATIC components cannot be used together")
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endif()
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set(_kissfft_shared_detected ON)
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set(_kissfft_shared OFF)
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endif()
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if(_kissfft_shared)
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set(_kissfft_config_glob "kissfft-*-shared-targets.cmake")
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else()
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set(_kissfft_config_glob "kissfft-*-static-targets.cmake")
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endif()
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# Load information for all configured kissfft
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get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
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file(GLOB CONFIG_FILES "${_DIR}/kissfft-*-targets.cmake")
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file(GLOB CONFIG_FILES "${_DIR}/${_kissfft_config_glob}")
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foreach(f ${CONFIG_FILES})
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include(${f})
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endforeach()
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# If a datatype component is passed, create kissfft::kissfft
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set(_kissfft_datatype_detected)
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foreach(_kissfft_datatype simd int16 int32 float double)
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if(_kissfft_datatype IN_LIST kissfft_FIND_COMPONENTS)
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if(_kissfft_datatype_detected)
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message(FATAL_ERROR "Cannot define datatype COMPONENT twice: ${_kissfft_datatype_detected} and ${_kissfft_datatype}")
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endif()
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set(_kissfft_datatype_detected ${_kissfft_datatype})
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endif()
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endforeach()
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if(_kissfft_datatype_detected)
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if(NOT TARGET kissfft::kissfft-${_kissfft_datatype_detected})
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message(FATAL_ERROR "kissfft with datatype=${_kissfft_datatype_detected} is not installed")
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endif()
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if(TARGET kissfft::kissfft)
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message(SEND_ERROR "kissfft::kissfft already exists. You cannot use 2 find_package's with datatype that are visible to eachother.")
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else()
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add_library(kissfft::kissfft INTERFACE IMPORTED)
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set_property(TARGET kissfft::kissfft PROPERTY INTERFACE_LINK_LIBRARIES kissfft::kissfft-${_kissfft_datatype_detected})
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endif()
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endif()
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set(kissfft_FOUND ON)
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set(KISSFFT_VERSION @kissfft_VERSION@)
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check_required_components(kissfft)