cmake FFTW3f examples

supercollider/supercollider server/scsynth/CMakeLists.txt :11 

find_package(FFTW3f 3.3)

gnuradio/gnuradio gr-fft/CMakeLists.txt :13 

find_package(FFTW3f)

AliceO2Group/AliceO2 dependencies/O2Dependencies.cmake :237 

find_package(FFTW3f CONFIG)

zynaddsubfx/zynaddsubfx src/CMakeLists.txt :48 

find_package(FFTW3F REQUIRED)

cropinghigh/sdrpp-tetra-demodulator .github/workflows/sdrpp_module_hack.cmake :74 

find_package(FFTW3f CONFIG REQUIRED)