In this case it was missing on FreeBSD <= 6.x (Which also doesn't have SNDCTL_DSP_POLICY yet so the version doesn't get used anyway.)
Signed-off-by: Juergen Lock <n...@jelal.kn-bremen.de> --- a/audio/ossaudio.c +++ b/audio/ossaudio.c @@ -240,7 +240,7 @@ static int oss_open (int in, struct oss_ struct oss_params *obt, int *pfd) { int fd; - int version; + int version = 0; int oflags = conf.exclusive ? O_EXCL : 0; audio_buf_info abinfo; int fmt, freq, nchannels; @@ -281,10 +281,12 @@ static int oss_open (int in, struct oss_ goto err; } +#ifdef OSS_GETVERSION if (ioctl (fd, OSS_GETVERSION, &version)) { oss_logerr2 (errno, typ, "Failed to get OSS version\n"); version = 0; } +#endif if (conf.debug) { dolog ("OSS version = %#x\n", version);