cmake find_package(FFTW3) examples

InsightSoftwareConsortium/ITK CMake/itkExternal_FFTW.cmake :155 

# Can not find package, it does not yet exist find_package(FFTW3 CONFIG REQUIRED)

lammps/lammps cmake/Modules/Packages/PLUMED.cmake :118 

find_package(FFTW3 QUIET)

lammps/lammps tools/phonon/CMakeLists.txt :56 

find_package(FFTW3)

libsndfile/libsamplerate tests/CMakeLists.txt :15 

find_package(FFTW3)