How can I resolve the below error ?

cd /workspace/percona_mysql/xtrabackup/percona-xtrabackup-2.4.20 && 
    cmake -j 8,--parallel 8 . -DWITH_BOOST=$P/include 
        -DLIBEV_INCLUDE_DIRS=/workspace/dart_percona_57/xtrabackup/libev/include 
        -DLIBEV_LIB=/workspace/percona_mysql/xtrabackup/libev/lib/libev.a 
        -DWITH_MAN_PAGES=OFF 
        -DBUILD_CONFIG=xtrabackup_release 
        -DCMAKE_INSTALL_PREFIX=/usr/local/a/percona_mysql/xtrabackup 
CMake Error: Unknown argument -j
CMake Error: Run 'cmake --help' for all supported options

cmake was working fine in earlier OS version alsi11 but failing with new os upgrade alsi22. What is the replacement that I can use instead of -j flag. Or how can I modify the above cmake command to have it running as it was earlier.

Thanks