dnl ==================================================================
dnl Checks for sound
dnl ==================================================================

HAVE_SAMPLERATE=no
SAMPLERATE_LIBS=""
if test "x$enable_samplerate" != "xno"; then
	if test "x$PKG_CONFIG" != "x"; then
		PKG_CHECK_MODULES([SAMPLERATE], [samplerate], HAVE_SAMPLERATE=yes,
						  HAVE_SAMPLERATE=no)
		if test "x$HAVE_SAMPLERATE" = "xyes"; then
			AC_DEFINE(HAVE_SAMPLERATE, 1, [Define if you have libsamplerate])
		fi
	else
		AC_CHECK_LIB(samplerate, src_callback_new, HAVE_SAMPLERATE=yes,
					 HAVE_SAMPLERATE=no, [$LIBS])
		if test "x$HAVE_SAMPLERATE" = "xyes"; then
			AC_CHECK_HEADER(samplerate.h, HAVE_SAMPLERATE=yes,
							HAVE_SAMPLERATE=no)
			if test "x$HAVE_SAMPLERATE" = "xyes"; then
				SAMPLERATE_LIBS="-lsamplerate"
				AC_DEFINE(HAVE_SAMPLERATE, 1,
						  [Define if you have libsamplerate])
			fi
		fi
	fi
fi
AC_SUBST(SAMPLERATE_LIBS)
dnl AM_CONDITIONAL(HAVE_SAMPLERATE, test "$HAVE_SAMPLERATE" = "yes")
if test "x$HAVE_SAMPLERATE" = "xno"; then
	AC_MSG_WARN([libsamplerate is required but was not found.]
				[Sound will be disabled.])
	enable_sound=no
fi

if test "x$enable_sound" != "xno"; then
	AC_CHECK_LIB(mme, waveOutOpen, HAVE_LIBMME=yes)

	AC_ARG_ENABLE(alsa,
		AS_HELP_STRING([--disable-alsa], [disable checks for ALSA support]))

	AC_ARG_ENABLE(oss,
		AS_HELP_STRING([--disable-oss], [disable checks for OSS support]))

	AC_ARG_ENABLE(sun,
		AS_HELP_STRING([--disable-sun], [disable checks for Sun audio support]))

	AC_ARG_ENABLE(sound,
		AS_HELP_STRING([--disable-sound], [disable sound outright]))

	unset SOUND_TYPES

	HAVE_ALSA=no
	if test "x$enable_alsa" != "xno"; then
		if test "x$ac_cv_header_sys_asoundlib_h" = "xyes" -o \
			"x$ac_cv_header_alsa_asoundlib_h" = "xyes"; then
				AC_EGREP_CPP([QF_maGiC_VALUE],
				[
#include <alsa/asoundlib.h>
#if defined(SND_LIB_MAJOR) && defined(SND_LIB_MINOR) && \
	defined(SND_LIB_SUBMINOR)
#if SND_LIB_MAJOR > 0 || (SND_LIB_MAJOR == 0 && SND_LIB_MINOR >= 9 && \
			  SND_LIB_SUBMINOR >= 8)
QF_maGiC_VALUE
#endif
#endif
				],
				SOUND_TYPES="$SOUND_TYPES ALSA"
				QF_NEED(snd_output, [alsa])
				QF_NEED(snd_render, [default])
				ALSA_LIBS="-lasound"
				HAVE_ALSA=yes,
				AC_EGREP_CPP([QF_maGiC_VALUE],
					[
#include <sys/asoundlib.h>
#if defined(SND_LIB_MAJOR) && defined(SND_LIB_MINOR) && \
	defined(SND_LIB_SUBMINOR)
#if SND_LIB_MAJOR > 0 || (SND_LIB_MAJOR == 0 && SND_LIB_MINOR >= 9 && \
			  SND_LIB_SUBMINOR >= 8)
QF_maGiC_VALUE
#endif
#endif
					],
					SOUND_TYPES="$SOUND_TYPES ALSA"
					QF_NEED(snd_output, [alsa])
					QF_NEED(snd_render, [default])
					ALSA_LIBS="-lasound"
					HAVE_ALSA=yes
				)
			)
		fi
	fi
	AC_SUBST(ALSA_LIBS)

	AC_ARG_ENABLE(jack,
		AS_HELP_STRING([--disable-jack], [disable jack support]))
	HAVE_JACK=no
	JACK_LIBS=""
	if test "x$enable_jack" != "xno"; then
		if test "x$PKG_CONFIG" != "x"; then
			PKG_CHECK_MODULES([JACK], [jack], HAVE_JACK=yes, HAVE_JACK=no)
			if test "x$HAVE_JACK" = "xyes"; then
				AC_DEFINE(HAVE_JACK, 1, [Define if you have libjack])
				SOUND_TYPES="$SOUND_TYPES JACK"
				QF_NEED(snd_output, [jack])
				QF_NEED(snd_render, [default])
			fi
		else
			AC_CHECK_LIB(jack, jack_client_open, HAVE_JACK=yes, HAVE_JACK=no,
						 [$LIBS])
			if test "x$HAVE_JACK" = "xyes"; then
				AC_CHECK_HEADER(jack/jack.h, HAVE_JACK=yes, HAVE_JACK=no)
				if test "x$HAVE_JACK" = "xyes"; then
					JACK_LIBS="-ljack"
					AC_DEFINE(HAVE_JACK, 1, [Define if you have libjack])
					SOUND_TYPES="$SOUND_TYPES JACK"
					QF_NEED(snd_output, [jack])
					QF_NEED(snd_render, [default])
				fi
			fi
		fi
	fi
	AC_SUBST(JACK_LIBS)

	SOUND_TYPES="$SOUND_TYPES DISK"
	QF_NEED(snd_output, [disk])
	QF_NEED(snd_render, [default])

	dnl MME
	if test "x$ac_cv_header_mme_mmsystem_h" = "xyes" -a \
			"x$HAVE_LIBMME" = "xyes"; then
		AC_EGREP_CPP([QF_maGiC_VALUE],
			[
#include <mme/mmsystem.h>
#ifdef WAVE_OPEN_SHAREABLE
QF_maGiC_VALUE
#endif
			],
			SOUND_TYPES="$SOUND_TYPES MME"
			QF_NEED(snd_output, [mme])
			QF_NEED(snd_render, [default])
			MME_LIBS="-lmme"
		)
	fi
	AC_SUBST(MME_LIBS)

	dnl OSS
	HAVE_OSS=no
	if test "x$enable_oss" != "xno" -a "x$ac_cv_header_sys_shm_h" = "xyes"; then
		if test "x$ac_cv_header_sys_soundcard_h" = "xyes" -o \
			"x$ac_cv_header_machine_soundcard_h" = "xyes" -o \
			"x$ac_cv_header_linux_soundcard_h" = "xyes"; then
		AC_EGREP_CPP([QF_maGiC_VALUE],
			[
#include <sys/soundcard.h>
#ifdef SNDCTL_DSP_SETTRIGGER
QF_maGiC_VALUE
#endif
			],
			SOUND_TYPES="$SOUND_TYPES OSS"
			QF_NEED(snd_output, [oss])
			QF_NEED(snd_render, [default])
			HAVE_OSS=yes
			OSS_LIBS=
			,
			AC_EGREP_CPP([QF_maGiC_VALUE],
				[
#include <linux/soundcard.h>
#ifdef SNDCTL_DSP_SETTRIGGER
QF_maGiC_VALUE
#endif
				],
				SOUND_TYPES="$SOUND_TYPES OSS"
				QF_NEED(snd_output, [oss])
				QF_NEED(snd_render, [default])
				HAVE_OSS=yes
				OSS_LIBS=
				,
				AC_EGREP_CPP([QF_maGiC_VALUE],
					[
#include <machine/soundcard.h>
#ifdef SNDCTL_DSP_SETTRIGGER
QF_maGiC_VALUE
#endif
					],
					SOUND_TYPES="$SOUND_TYPES OSS"
					QF_NEED(snd_output, [oss])
					QF_NEED(snd_render, [default])
					HAVE_OSS=yes
					OSS_LIBS=
				)
			)
		)
		fi
	fi
	AC_SUBST(OSS_LIBS)

	dnl SDL digital audio
	if test "x$HAVE_SDL_AUDIO" = "xyes"; then
		SOUND_TYPES="$SOUND_TYPES SDL"
		QF_NEED(snd_output, [sdl])
		QF_NEED(snd_render, [default])
	fi

	dnl SGI
	if test "x$ac_cv_header_dmedia_audio_h" = "xyes"; then
	   AC_EGREP_CPP([QF_maGiC_VALUE],
			[
#include <dmedia/audio.h>
#ifdef AL_SAMPLE_16
# ifdef AL_RATE
QF_maGiC_VALUE
# endif
#endif
			],
			SOUND_TYPES="$SOUND_TYPES SGI"
			QF_NEED(snd_output, [sgi])
			QF_NEED(snd_render, [default])
			SGISND_LIBS="-laudio")
	fi
	AC_SUBST(SGISND_LIBS)

	dnl Sun
	if test "x$enable_sun" != "xno"; then
		if test "x$ac_cv_header_sys_audioio_h" = "xyes"; then
			AC_EGREP_CPP([QF_maGiC_VALUE],
				[
#include <sys/audioio.h>
#ifdef AUDIO_SETINFO
QF_maGiC_VALUE
#endif
				],
				SOUND_TYPES="$SOUND_TYPES SUN"
				QF_NEED(snd_output, [sun])
				QF_NEED(snd_render, [default])
			)
		fi
	fi

	dnl Win32
	if test "x$SYSTYPE" = xWIN32; then
		if test "x$ac_cv_header_windows_h" = "xyes"; then
			SOUND_TYPES="$SOUND_TYPES Win32"
			QF_NEED(snd_output, [win])
			QF_NEED(snd_render, [default])
			WINSND_LIBS="-lwinmm"
			if test "x$ac_cv_header_dsound_h" = "xyes"; then
			AC_EGREP_CPP([QF_maGiC_VALUE],
				[
	#include <windows.h>
	#include <dsound.h>
	#ifdef GMEM_MOVEABLE
	# ifdef DirectSoundEnumerate
	QF_maGiC_VALUE
	# endif
	#endif
				],
				SOUND_TYPES="$SOUND_TYPES DirectX"
				QF_NEED(snd_output, [dx])
				QF_NEED(snd_render, [default])
			)
			fi
		fi
	fi
	AC_SUBST(WINSND_LIBS)

fi