ref: af78782438bd3dfff481a105e3f86988105b992a dir: /lib/fft/mkfile/
<../../mkfile.common LIB=libfft.a$O CFLAGS=$CFLAGS -I../../h HFILES=\ fftlib.c\ sp_fft.c\ OFILES=\ fft.$O\ </sys/src/cmd/mklib