On Aug 11 15:14:29, m...@mansr.com wrote:
> Jan Stary <h...@stare.cz> writes:
> 
> >> > -AC_OPTIONAL_FORMAT(oss, OSS, [AC_CHECK_HEADERS(sys/soundcard.h,,
> >> > -      [AC_CHECK_HEADERS(machine/soundcard.h,
> >> > -          [AC_CHECK_LIB(ossaudio, _oss_ioctl, OSS_LIBS="$OSS_LIBS 
> >> > -lossaudio")],
> >> > -          using_oss=no)])])
> >> > +AC_OPTIONAL_FORMAT(oss, OSS, [AC_CHECK_HEADERS(sys/soundcard.h,, 
> >> > uing_oss=no)])
> >> 
> >> Apparently, the presence of <sys/soundcard.h> is not
> >> a correct test of ossaudio being available in the system.
> >
> > Maybe I am confused by the Subject:
> > "remove check for machine/soundcard.h and libossaudio"
> 
> The checks for those things have been removed.  It now only checks for
> sys/soundcard.h since that better reflects what we actually want.

Does that mean "if sys/soundcard.h was found,
we are on a system where we want to use OSS"?

> > It seems this diff does not remove, but change the way
> > ossaudio is detected; namely, if sys/soundcard.h is present,
> > we have oss (which is wrong, at least on OpenBSD);
> 
> Did you fix that typo (a git pull will do it)?  If not, it would
> definitely "detect" it as present on any system.

With that typo fixed, ./configure on OpenBSD thinks that

        OPTIONAL DEVICE DRIVERS
        ao (Xiph)..................no
        alsa (Linux)...............no
        coreaudio (Mac OS X).......no
        sndio (OpenBSD)............yes
        oss........................no
        pulseaudio.................no
        sunaudio...................yes
        waveaudio (MS-Windows).....no

and the compilatiopn fails as in my previous email.
But ./configure --without-sunaudio results in

        OPTIONAL DEVICE DRIVERS
        ao (Xiph)..................no
        alsa (Linux)...............no
        coreaudio (Mac OS X).......no
        sndio (OpenBSD)............yes
        oss........................no
        pulseaudio.................no
        sunaudio...................no
        waveaudio (MS-Windows).....no

and it builds fine.

> > also, even with oss detected, we no longer set -libossaudio,
> > which also seems wrong (anywhere we want to use it).
> 
> -lossaudio is _only_ for the emulation on *BSD.  No library is required
> on systems with real OSS drivers.  We shouldn't be using the emulation,
> so there is no need to link with the library either.

Right; sorry for the confusion.

        Jan



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