chan_vpb.c:2107: error: at this point in file
chan_vpb.c: At top level:
chan_vpb.c:113: warning: `VPB_DETECT toned_grunt' defined but not used
make[1]: *** [chan_vpb.o] Error 1
make[1]: Leaving directory `/usr/src/asterisk/channels'
make: *** [subdirs] Error 1