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dnl Copyright 2011 Free Software Foundation, Inc.
dnl
dnl This file is part of GNU Radio
dnl
dnl GNU Radio is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3, or (at your option)
dnl any later version.
dnl
dnl GNU Radio is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with GNU Radio; see the file COPYING. If not, write to
dnl the Free Software Foundation, Inc., 51 Franklin Street,
dnl Boston, MA 02110-1301, USA.
AC_DEFUN([GRC_GR_AUDIO],[
GRC_ENABLE(gr-audio)
dnl Don't do gr-audio-alsa if gnuradio-core skipped
GRC_CHECK_DEPENDENCY(gr-audio, gnuradio-core)
####################################################################
## ALSA Support
####################################################################
GR_AUDIO_ALSA_SUPPORT=true
dnl Don't do gr-audio-alsa if the 'alsa' package is not installed.
PKG_CHECK_MODULES(ALSA, alsa >= 0.9,[],
[GR_AUDIO_ALSA_SUPPORT=false;AC_MSG_RESULT([gr-audio alsa support requires package alsa, not found.])])
AM_CONDITIONAL(GR_AUDIO_ALSA_SUPPORT, $GR_AUDIO_ALSA_SUPPORT)
####################################################################
## OSS Support
####################################################################
dnl Make sure the correct library and/or headers are available.
GR_AUDIO_OSS_SUPPORT=true
case $host_os in
netbsd*)
AC_HAVE_LIBRARY(ossaudio,[],
[GR_AUDIO_OSS_SUPPORT=false;AC_MSG_RESULT([gr-audio oss support requires library ossaudio, not found.])])
if test $GR_AUDIO_OSS_SUPPORT != false; then
OSS_LIBS=-lossaudio
AC_SUBST(OSS_LIBS)
AC_MSG_RESULT([Using OSS library $OSS_LIBS])
fi
;;
darwin*)
dnl OSX / Darwin can't use OSS
GR_AUDIO_OSS_SUPPORT=false
;;
*)
AC_CHECK_HEADER(sys/soundcard.h,[],
[GR_AUDIO_OSS_SUPPORT=false;AC_MSG_RESULT([gr-audio oss support requires sys/soundcard.h, not found.])])
esac
AM_CONDITIONAL(GR_AUDIO_OSS_SUPPORT, $GR_AUDIO_OSS_SUPPORT)
AC_CONFIG_FILES([ \
gr-audio/Makefile \
gr-audio/grc/Makefile \
gr-audio/include/Makefile \
gr-audio/lib/Makefile \
gr-audio/swig/Makefile \
gr-audio/gnuradio-audio.pc \
])
GRC_BUILD_CONDITIONAL(gr-audio)
])
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