script:
    - CFLAGS="-DLFS_READ_SIZE=16  -DLFS_PROG_SIZE=16"  make test
    - CFLAGS="-DLFS_READ_SIZE=1   -DLFS_PROG_SIZE=1"   make test
    - CFLAGS="-DLFS_READ_SIZE=512 -DLFS_PROG_SIZE=512" make test