[ 39%] Building CXX object src/sl/CMakeFiles/plibsl.dir/slDSP.cxx.o
In file included from /home/user/fgfs/plib/src/sl/slPortability.h:60:0,
                 from /home/user/fgfs/plib/src/sl/sl.h:29,
                 from /home/user/fgfs/plib/src/sl/slDSP.cxx:25:
/home/user/fgfs/plib/src/sl/slDSP.cxx: In member function ‘void slDSP::open(const char*, int, int, int)’:
/home/user/fgfs/plib/src/sl/slDSP.cxx:59:22: error: ‘SOUND_PCM_WRITE_CHANNELS_is_obsolete_use_SNDCTL_DSP_CHANNELS_instead’ was not declared in this scope
     stereo = ioctl ( SOUND_PCM_WRITE_CHANNELS, _stereo ? 2 : 1 ) >= 2 ;
                      ^
/home/user/fgfs/plib/src/sl/slDSP.cxx:60:22: error: ‘SOUND_PCM_WRITE_BITS_is_obsolete_use_SNDCTL_DSP_SETFMT_instead’ was not declared in this scope
     bps    = ioctl ( SOUND_PCM_WRITE_BITS, _bps ) ;
                      ^
/home/user/fgfs/plib/src/sl/slDSP.cxx:61:22: error: ‘SOUND_PCM_WRITE_RATE_is_obsolet_use_SNDCTL_DSP_SPEED_instead’ was not declared in this scope
     rate   = ioctl ( SOUND_PCM_WRITE_RATE, _rate ) ;
                      ^
/home/user/fgfs/plib/src/sl/slDSP.cxx: In member function ‘void slDSP::sync()’:
/home/user/fgfs/plib/src/sl/slDSP.cxx:148:31: error: ‘SOUND_PCM_SYNC_is_obsolete_use_SNDCTL_DSP_SYNC_instead’ was not declared in this scope
    if ( !error) ::ioctl ( fd, SOUND_PCM_SYNC , 0 ) ;
                               ^
/home/user/fgfs/plib/src/sl/slDSP.cxx: In member function ‘void slDSP::stop()’:
/home/user/fgfs/plib/src/sl/slDSP.cxx:153:31: error: ‘SOUND_PCM_RESET_is_obsolete_use_SNDCTL_DSP_HALT_instead’ was not declared in this scope
    if ( !error) ::ioctl ( fd, SOUND_PCM_RESET, 0 ) ;
                               ^
make[2]: *** [src/sl/CMakeFiles/plibsl.dir/slDSP.cxx.o] Fout 1
make[1]: *** [src/sl/CMakeFiles/plibsl.dir/all] Fout 2
make: *** [all] Fout 2