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# http://tim.klingt.org/code/projects/supernova/repository/revisions/d336dd6f400e381bcfd720e96139656de0c53b6a/entry/cmake_modules/FindFFTW3f.cmake
# Modified to use pkg config and use standard var names
# Find single-precision (float) version of FFTW3
find_package(PkgConfig)
pkg_check_modules(PC_FFTW3f "fftw3f >= 3.0")
find_path(
FFTW3f_INCLUDE_DIRS
NAMES fftw3.h
HINTS $ENV{FFTW3_DIR}/include ${PC_FFTW3f_INCLUDE_DIRS}
PATHS /usr/local/include /usr/include)
find_library(
FFTW3f_LIBRARIES
NAMES fftw3f libfftw3f
HINTS $ENV{FFTW3_DIR}/lib ${PC_FFTW3f_LIBDIR}
PATHS /usr/local/lib /usr/lib /usr/lib64)
find_library(
FFTW3f_THREADS_LIBRARIES
NAMES fftw3f_threads libfftw3f_threads
HINTS $ENV{FFTW3_DIR}/lib ${PC_FFTW3f_LIBDIR}
PATHS /usr/local/lib /usr/lib /usr/lib64)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(FFTW3f DEFAULT_MSG FFTW3f_LIBRARIES
FFTW3f_INCLUDE_DIRS)
mark_as_advanced(FFTW3f_LIBRARIES FFTW3f_INCLUDE_DIRS FFTW3f_THREADS_LIBRARIES)
if(FFTW3f_FOUND AND NOT TARGET fftw3f::fftw3f)
add_library(fftw3f::fftw3f INTERFACE IMPORTED)
if(NOT WIN32)
list(APPEND FFTW3f_LIBRARIES m)
endif()
set_target_properties(
fftw3f::fftw3f
PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${FFTW3f_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${FFTW3f_LIBRARIES}")
if(FFTW3f_THREADS_LIBRARIES)
set_property(
TARGET fftw3f::fftw3f
APPEND
PROPERTY INTERFACE_LINK_LIBRARIES "${FFTW3f_THREADS_LIBRARIES}")
set_target_properties(
fftw3f::fftw3f PROPERTIES INTERFACE_COMPILE_DEFINITIONS "FFTW3F_THREADS")
endif()
endif()
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