root/sweep/branches/display-cache/configure.ac

dnl Process this file with autoconf to produce a configure script.

dnl Require minimum autoconf version
AC_PREREQ(2.50)

AC_INIT(configure.ac)
AM_INIT_AUTOMAKE(sweep, 0.9.1)
AM_CONFIG_HEADER(config.h)

AC_ISC_POSIX
AC_PROG_CC
AM_PROG_CC_STDC
AC_HEADER_STDC
AM_PROG_LIBTOOL

AC_CHECK_PROG(HAVE_GNOME_MOZ_REMOTE, 'gnome-moz-remote', yes, no)

AC_C_BIGENDIAN

AC_CHECK_FUNCS(strchr)
AC_CHECK_FUNCS(madvise)

ALL_LINGUAS="de el es_ES fr hu it pl ru en_AU"
AM_GNU_GETTEXT

dnl Overall configuration success flag
sweep_config_ok=yes

dnl Default audio handling to build in
sweep_config_driver=none

dnl
dnl  Configuration option for building of experimental code.
dnl

ac_enable_experimental=no
AC_ARG_ENABLE(experimental,
     [  --enable-experimental   enable building of experimental code ],
     [ ac_enable_experimental=yes ])

if test "x${ac_enable_experimental}" = xyes ; then
    AC_DEFINE([DEVEL_CODE], [], [Whether to build the develpment code.])
fi


dnl
dnl  Detect pthreads libraries
dnl

PTHREAD_LIBS=error
AC_CHECK_LIB(pthread, pthread_attr_init, PTHREAD_LIBS="-lpthread")
if test "x$PTHREAD_LIBS" = xerror; then
        AC_CHECK_LIB(pthreads, pthread_attr_init, PTHREAD_LIBS="-lpthreads")
fi
if test "x$PTHREAD_LIBS" = xerror; then
        AC_CHECK_LIB(c_r, pthread_attr_init, PTHREAD_LIBS="-lc_r")
fi
if test "x$PTHREAD_LIBS" = xerror; then
        AC_CHECK_FUNC(pthread_attr_init, PTHREAD_LIBS="")
fi
AC_SUBST(PTHREAD_LIBS)



dnl
dnl  Detect Gthread, GLib and GTK+ libraries
dnl

PKG_CHECK_MODULES(GTK, gtk+-2.0 >=  2.2.0, HAVE_GTK="yes", sweep_config_ok="no")
AC_SUBST(GTK_CFLAGS)
AC_SUBST(GTK_LIBS)
if test "x$HAVE_GTK" != xyes ; then
    AC_CHECK_LIB(gtk-x11-2.0, gtk_init, HAVE_GTK="maybe", sweep_config_ok="no")
fi

PKG_CHECK_MODULES(GLIB, glib-2.0 >=  2.2.0, HAVE_GLIB="yes", sweep_config_ok="no")
AC_SUBST(GLIB_CFLAGS)
AC_SUBST(GLIB_LIBS)
if test "x$HAVE_GLIB" != xyes ; then
  AC_CHECK_LIB(glib-2.0, g_list_append, HAVE_GLIB="maybe", sweep_config_ok="no")
fi

PKG_CHECK_MODULES(GTHREADS, gthread-2.0 >=  2.2.0, HAVE_GTHREADS="yes", sweep_config_ok="no")
AC_SUBST(GTHREADS_CFLAGS)
AC_SUBST(GTHREADS_LIBS)
if test "x$HAVE_GTHREADS" != xyes ; then
  AC_CHECK_LIB(gthread-2.0, g_thread_init, HAVE_GTHREADS="maybe", sweep_config_ok="no")
fi

dnl
dnl  Detect libsndfile 1.0
dnl

PKG_CHECK_MODULES(SNDFILE, sndfile >= 1.0.0,
                  HAVE_LIBSNDFILE1="yes", HAVE_LIBSNDFILE1="no")

if test "x$HAVE_LIBSNDFILE1" = xyes ; then
  AC_DEFINE([HAVE_LIBSNDFILE1], [], [Define if we have libsndfile1.])
  AC_SUBST(SNDFILE_LIBS)
else
  sweep_config_ok="no"
  AC_CHECK_LIB(sndfile, sf_open, HAVE_LIBSNDFILE1="maybe")
fi

if test "x$HAVE_LIBSNDFILE1" = xmaybe ; then
  AC_CHECK_HEADERS(sndfile.h, HAVE_LIBSNDFILE1="ouch")
  if test "x$HAVE_LIBSNDFILE1" = xouch ; then
    AC_MSG_ERROR([
***
*** libsndfile-1.0.0 or greater seems to exist on your system, however
*** the pkg-config tool cannot find its build information.
***
*** Please set your PKG_CONFIG_PATH environment variable to include the
*** directory in which sndfile.pc was installed. For example, sndfile.pc
*** is installed in /usr/local/lib/pkgconfig by default; if that is the
*** case do:
***
***     export PKG_CONFIG_PATH="\$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig"
***
*** then run this ./configure again. If you configured libsndfile with a
*** different --prefix option, replace /usr/local above with that prefix.
***
])
  fi
fi

AC_CHECK_SIZEOF(off_t,1)


dnl
dnl Detect Ogg
dnl

HAVE_OGG=no
HAVE_VORBIS=no
HAVE_SPEEX=no

ac_enable_oggvorbis=yes
AC_ARG_ENABLE(oggvorbis,
     [  --disable-oggvorbis     disable Ogg Vorbis support],
     [ ac_enable_oggvorbis=no ], [ ac_enable_oggvorbis=yes ])

ac_enable_speex=yes
AC_ARG_ENABLE(speex,
     [  --disable-speex         disable Speex support],
     [ ac_enable_speex=no ], [ ac_enable_speex=yes ])

dnl Both Vorbis and Speex require Ogg, so check for it first either way
if test "x${ac_enable_oggvorbis}" != xno ||
   test "x${ac_enable_speex}" != xno ; then

  XIPH_PATH_OGG(HAVE_OGG="yes", HAVE_OGG="no")
  if test "x$HAVE_OGG" = xno ; then
    AC_CHECK_LIB(ogg, ogg_stream_init, HAVE_OGG="maybe")
  fi
  if test "x$HAVE_OGG" = xmaybe; then
    AC_CHECK_HEADER([ogg/ogg.h], HAVE_OGG="yes", HAVE_OGG="no")
  fi

  AC_SUBST(OGG_LIBS)
fi

dnl
dnl Detect Vorbis
dnl
dnl LIBS="$LIBS -lm -logg -lvorbis -lvorbisenc -lvorbisfile"

if test "x$HAVE_OGG" = xyes && test "x${ac_enable_oggvorbis}" != xno ; then

  XIPH_PATH_VORBIS(HAVE_VORBIS="yes", HAVE_VORBIS="no")

  dnl Fall back to explicit checks if this fails
  if test "x$HAVE_VORBIS" = xno ; then
    AC_MSG_RESULT([
*** Trying explicit detection of Ogg Vorbis libraries and headers ...])
    AC_CHECK_LIB(vorbis, vorbis_info_init, HAVE_VORBIS="maybe", ,
                 [-lm -logg])
    AC_CHECK_LIB(vorbisenc, vorbis_encode_init, HAVE_VORBISENC="maybe", ,
                 [-lm -logg -lvorbis])
    AC_CHECK_LIB(vorbisfile, ov_open, HAVE_VORBISFILE="maybe", ,
                 [-lm -logg -lvorbis])
    AC_CHECK_HEADERS([vorbis/codec.h vorbis/vorbisfile.h vorbis/vorbisenc.h],
                     HAVE_VORBIS_HEADERS="yes", HAVE_VORBIS_HEADERS="no")

    if test "x$HAVE_VORBIS" = xmaybe && test "x$HAVE_VORBISENC" = xmaybe &&
       test "x$HAVE_VORBISFILE" = xmaybe &&
       test "x$HAVE_VORBIS_HEADERS" = xyes ; then

       VORBIS_LIBS="-lvorbis -lm"
       VORBISFILE_LIBS="-lvorbisfile"
       VORBISENC_LIBS="-lvorbisenc"
       VORBIS_CFLAGS=""

       dnl HAVE_VORBIS="maybe"
       HAVE_VORBIS="yes"
    else
       HAVE_VORBIS="no"
    fi
  fi

  AC_SUBST(VORBIS_LIBS)
  AC_SUBST(VORBISENC_LIBS)
  AC_SUBST(VORBISFILE_LIBS)

  if test "x$HAVE_VORBIS" = xyes ; then
    AC_DEFINE([HAVE_OGGVORBIS], [], [Define if we have Ogg Vorbis.])

    dnl Test out ov_read_float
    AC_MSG_CHECKING([for deprecated ov_read_float() interface])

    ac_save_CFLAGS="$CFLAGS"
    ac_save_LIBS="$LIBS"
    CFLAGS="$CFLAGS $OGG_CFLAGS $VORBIS_CFLAGS"
    LIBS="$LIBS $OGG_LIBS $VORBIS_LIBS $VORBISFILE_LIBS"

    AC_TRY_COMPILE([#include <vorbis/codec.h>
                    #include <vorbis/vorbisfile.h> ],
                   [OggVorbis_File * vf; float ** pcm; int b;
                    ov_read_float (vf, &pcm, &b);],
                   [ AC_DEFINE([OV_READ_FLOAT_THREE_ARGS], [], [Define if ov_read_float takes 3 arguments.])
                     AC_MSG_RESULT(yes) ],
                   [ AC_MSG_RESULT(no) ])

    CFLAGS="$ac_save_CFLAGS"
    LIBS="$ac_save_LIBS"

  else
    sweep_config_ok="no"
  fi

else
  HAVE_VORBIS=disabled
fi

dnl
dnl Detect speex
dnl
dnl LIBS="$LIBS -lm -logg -lspeex"

if test "x$HAVE_OGG" = xyes && test "x${ac_enable_speex}" != xno ; then

  XIPH_PATH_SPEEX(HAVE_SPEEX="yes", HAVE_SPEEX="no")

  dnl Fall back to explicit checks if this fails
  if test "x$HAVE_SPEEX" = xno ; then
    AC_CHECK_LIB(speex, speex_encoder_init, HAVE_SPEEX="maybe", , [-lm -logg])
    if test "x$HAVE_SPEEX" = xmaybe; then
      AC_CHECK_HEADER(speex.h, HAVE_SPEEX="yes",
        [AC_CHECK_HEADER([speex/speex.h], HAVE_SPEEX="yes", HAVE_SPEEX="no")]
      )
    fi
  fi

  if test "x$HAVE_SPEEX" = xyes ; then
    AC_CHECK_HEADER([speex/speex.h],
                    AC_DEFINE(HAVE_SPEEX_SUBDIR, [1], [Define to 1 if speex headers are eg. <speex/speex.h>])
    )

    AC_DEFINE([HAVE_SPEEX], [], [Define if we have speex.])
    SPEEX_LIBS="-lspeex -lm"
    AC_SUBST(SPEEX_LIBS)
  fi

else
  HAVE_SPEEX=disabled
fi


dnl
dnl Detect libmad
dnl

HAVE_MAD=no

ac_enable_mad=yes
AC_ARG_ENABLE(mad,
     [  --disable-mad           disable libmad (MPEG audio loading) support],
     [ ac_enable_mad=no ], [ ac_enable_mad=yes ])

if test "x${ac_enable_mad}" != xno ; then
  AC_CHECK_LIB(mad, mad_decoder_init, HAVE_MAD="maybe")

  if test "x$HAVE_MAD" = xmaybe ; then
    AC_CHECK_HEADER(mad.h, HAVE_MAD="yes", HAVE_MAD="no")
  fi
  if test "x$HAVE_MAD" = xyes ; then
    AC_DEFINE([HAVE_MAD], [], [Define if we have mad.])
    MAD_LIBS="-lmad"
    AC_SUBST(MAD_LIBS)
  fi

else
  HAVE_MAD=disabled
fi

dnl
dnl Detect secret rabbit code
dnl

HAVE_LIBSAMPLERATE=no

ac_enable_src=yes
AC_ARG_ENABLE(src,
     [  --disable-src            enable secret rabbit code (libsamplerate)],
     [ ac_enable_src=no ], [ ac_enable_src=yes])

if test "x${ac_enable_src}" != xno ; then
  PKG_CHECK_MODULES(SAMPLERATE, samplerate >= 0.0.9,
                    HAVE_LIBSAMPLERATE="yes", HAVE_LIBSAMPLERATE="no")

  if test "x$HAVE_LIBSAMPLERATE" = xyes ; then
    AC_DEFINE([HAVE_LIBSAMPLERATE], [], [Define if we have libsamplerate.])
    AC_SUBST(SAMPLERATE_LIBS)
  fi
else
  HAVE_LIBSAMPLERATE=disabled
fi


dnl
dnl Test for ALSA -- requires explicit enabling
dnl


ac_enable_alsa=yes
AC_ARG_ENABLE(alsa,
     [  --enable-alsa           enable use of ALSA, and disable use of OSS ],
     [ ac_enable_alsa=yes ])

if test "x${ac_enable_alsa}" != xno ; then

  PKG_CHECK_MODULES(ALSA, alsa >= 1.0.0,
                  HAVE_ALSA="yes", sweep_config_ok="no")
  AC_SUBST(ALSA_CFLAGS)
  AC_SUBST(ALSA_LIBS)
  AC_DEFINE([DRIVER_ALSA], [], [Define if we have and want alsa.]) 
  if test "x$HAVE_ALSA" != xyes ; then
    AC_CHECK_LIB(asound, snd_seq_open, HAVE_ALSA="maybe", sweep_config_ok="no")
  fi    
  sweep_config_driver="ALSA"
fi

dnl Test for OSS
AC_CHECK_HEADERS(sys/soundcard.h machine/soundcard.h)
if test "x${ac_cv_header_sys_soundcard_h}" = xyes || \
  test "x${ac_cv_header_machine_soundcard_h}" = xyes; then
  if test "x$ac_enable_alsa" = xno ; then
    AC_DEFINE([DRIVER_OSS], [], [Define if we have and want OSS.])

    dnl Check for NetBSD's OSS compatability layer
    AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBS="$LIBS -lossaudio")

    sweep_config_driver="OSS"
  fi
fi

dnl Test for Solaris audio
case $host in
*-*-solaris*)
AC_CHECK_HEADERS(sys/audioio.h)
if test "x${ac_cv_header_sys_audioio_h}" = xyes; then
    AC_DEFINE([DRIVER_SOLARIS_AUDIO], [], [Define if we have and want the solaris audio driver.])
    sweep_config_driver="Solaris"
fi
;;
esac


dnl Set PACKAGE_LOCALE_DIR in config.h.
if test "x${prefix}" = xNONE; then
  AC_DEFINE_UNQUOTED([PACKAGE_LOCALE_DIR], "${ac_default_prefix}/${DATADIRNAME}/locale", [Define the PACKAGE_LOCALE_DIR.])
else
  AC_DEFINE_UNQUOTED([PACKAGE_LOCALE_DIR], "${prefix}/${DATADIRNAME}/locale")
fi

dnl Set PACKAGE_DATA_DIR in config.h.
if test "x${datadir}" = 'x${prefix}/share'; then
  if test "x${prefix}" = xNONE; then
    AC_DEFINE_UNQUOTED([PACKAGE_DATA_DIR], "${ac_default_prefix}/share/${PACKAGE}", [Define the PACKAGE_DATA_DIR.])
  else
    AC_DEFINE_UNQUOTED(PACKAGE_DATA_DIR, "${prefix}/share/${PACKAGE}")
  fi
else
  AC_DEFINE_UNQUOTED(PACKAGE_DATA_DIR, "${datadir}/${PACKAGE}")
fi

dnl Set PACKAGE_PLUGIN_DIR in Makefiles and config.h.
PACKAGE_PLUGIN_DIR=$libdir/sweep
AC_SUBST(PACKAGE_PLUGIN_DIR)
if test "x${prefix}" = xNONE; then
  sweep_plugin_dir="${ac_default_prefix}/lib/${PACKAGE}"
else
  sweep_plugin_dir="${prefix}/lib/${PACKAGE}"
fi
AC_DEFINE_UNQUOTED([PACKAGE_PLUGIN_DIR], "$sweep_plugin_dir", [Define the PACKAGE_PLUGIN_DIR.])

dnl Set PACKAGE_SOURCE_DIR in config.h.
packagesrcdir=`cd $srcdir && pwd`
AC_DEFINE_UNQUOTED([PACKAGE_SOURCE_DIR], "${packagesrcdir}", [Define the PACKAGE_SOURCE_DIR.])


AC_ARG_ENABLE(gcc-werror,
        AC_HELP_STRING([--enable-gcc-werror], [enable -Werror in all Makefiles]))

dnl Use -Wall if we have gcc.
dnl changequote(,)dnl
if test "x$ac_cv_prog_gcc" = xyes ; then
  CFLAGS="$CFLAGS -Wall"

  if test x$enable_gcc_werror = "xyes" ; then
    CFLAGS="$CFLAGS -Werror"
        fi

fi
dnl changequote([,])dnl

dnl - Modified from www.nagios.org who modified it from www.erlang.org 

dnl   Check how to export functions from the sweep executable, needed
dnl   when dynamically loaded drivers are loaded (so that they can find
dnl   sweep functions).
dnl   OS'es with ELF executables using the GNU linker (Linux and recent *BSD ,
dnl   in rare cases Solaris) typically need '-Wl,-export-dynamic' (i.e. pass
dnl   -export-dynamic to the linker - also known as -rdynamic and some other
dnl   variants); some sysVr4 system(s) instead need(s) '-Wl,-Bexport'.
dnl   AIX 4.x (perhaps only for x>=2) wants -Wl,-bexpall,-brtl and doesn't
dnl   reliably return an error for others, thus we separate it out.
dnl   Otherwise we assume that if the linker accepts the flag, it is needed.
      
       AC_MSG_CHECKING(for extra flags needed to export symbols)
       case $host_os in
               aix4*|aix5*)
                       EXPORT_DYNAMIC_FLAGS="-Wl,-bexpall,-brtl"
               ;;
               bsdi*)
                       EXPORT_DYNAMIC_FLAGS="-rdynamic"
               ;;
               *)
                       save_ldflags="$LDFLAGS"
                       LDFLAGS=-Wl,-export-dynamic
                       AC_TRY_LINK(,,[EXPORT_DYNAMIC_FLAGS="-Wl,-export-dynamic"], [
                               LDFLAGS=-Wl,-Bexport
                               AC_TRY_LINK(,,[EXPORT_DYNAMIC_FLAGS="- Wl,-Bexport"],
                                       AC_MSG_RESULT(none))])
                       LDFLAGS="$save_ldflags"
               ;;
       esac
       AC_SUBST(EXPORT_DYNAMIC_FLAGS)
       test "x$EXPORT_DYNAMIC_FLAGS" != x && AC_MSG_RESULT([$EXPORT_DYNAMIC_FLAGS])



dnl
dnl  Configuration tests complete -- provide summary of results.
dnl

if test $sweep_config_ok = no ; then

AC_MSG_RESULT([
**************************************************************

*** Sweep $VERSION: Automatic configuration FAILED.

*** The file config.log has full details.

*** The following required libraries are missing or
*** misconfigured on your system:
])

if test "x$HAVE_GLIB" != xyes ||  test "x$HAVE_GTHREADS" != xyes; then
  AC_MSG_RESULT([
*** GLib version 2.2.x or greater, available from  http://www.gtk.org/
])
fi

if test "x$HAVE_GLIB" = xmaybe || test "x$HAVE_GTHREADS" = xmaybe; then
  AC_MSG_RESULT([
      Development files missing: The libglib-2.0 binary seems
      to be installed, but the pkg-config tool cannot find its build
      information.
])
fi

if test "x$HAVE_GTK" != xyes ; then
  AC_MSG_RESULT([
*** GTK+ version 2.2.x or greater, available from  http://www.gtk.org/
])
fi
if test "x$HAVE_GTK" = xmaybe ; then
  AC_MSG_RESULT([
      Development files missing: The libgtk binary seems
      to be installed, but the pkg-config tool cannot find its build
      information..
])
fi

if test "x$HAVE_LIBSNDFILE1" != xyes ; then
  AC_MSG_RESULT([
*** libsndfile version 1.0.0 or greater, available from
*** http://www.mega-nerd.com/libsndfile/
])
fi
if test "x$HAVE_LIBSNDFILE1" = xmaybe ; then
    AC_MSG_RESULT([
      Development files missing: libsndfile-1.0.0 or greater
      seems to exist on your system, however the header files
      are missing and the pkg-config tool cannot find its build
      information.
])
fi

if test "x$HAVE_ALSA" = xmaybe ; then
    AC_MSG_RESULT([
      Development files missing: alsa-lib 1.0.0 or greater seems to exist
      on your system, however the pkg-config tool cannot find the
      build information.
])
fi

if test "x$HAVE_ALSA" != xyes ; then
  AC_MSG_RESULT([
*** alsa-lib version 1.0.0 or greater, available from
*** http://alsa-project.org/
])
fi

if test "x$HAVE_VORBIS" = xmaybe ; then
    AC_MSG_RESULT([
      Development files missing: The libogg, libvorbis, libvorbisenc and
      libvorbisfile library binaries seem to be installed, but building of
      a test program failed.
])
fi

if test "x$HAVE_VORBIS" != xyes ; then
    AC_MSG_RESULT([
*** Ogg Vorbis libraries, available from  http://www.xiph.org/ogg/vorbis/
])
fi

if test "x$HAVE_VORBIS" != xyes ; then
    AC_MSG_RESULT([
*** Or, to build a version of Sweep without Ogg Vorbis support, do:
***
***         ./configure --disable-oggvorbis
])
fi

if test "x$HAVE_GLIB" = xmaybe || test "x$HAVE_GTK" = xmaybe ||
   test "x$HAVE_LIBSNDFILE1" = xmaybe || test "x$HAVE_TDB" = xmaybe ||
   test "x$HAVE_GTHREADS" = xmaybe || test "x$HAVE_ALSA" = xmaybe ||
   test "x$HAVE_OGG" = xmaybe || test "x$HAVE_VORBIS" = xmaybe ; then
  AC_MSG_RESULT([
*** HOW TO FIX "development files missing": you have probably
*** installed the library package from your distribution. You
*** must also install the library's "development" package.
])
fi

AC_MSG_RESULT([
*** If you install the required libraries from source, you
*** need to inform the dynamic linker of their location. If
*** you install them in a system-wide directory such as
*** /usr/local (the default), you must ensure that
*** /usr/local/lib is listed in /etc/ld.so.conf, then run
*** ldconfig to update the dynamic linking system.
*** Alternatively, you can set your LD_LIBRARY_PATH environment
*** variable to include the library installation directory.
])


AC_MSG_RESULT([
**************************************************************
])

AC_MSG_ERROR([
***
*** After fixing the above problems, you must run ./configure again.
***
])

else

AC_OUTPUT([
Makefile
sweep.spec
m4/Makefile
include/Makefile
include/sweep/Makefile
src/Makefile
src/tdb/Makefile
plugins/Makefile
plugins/echo/Makefile
plugins/normalise/Makefile
plugins/fade/Makefile
plugins/reverse/Makefile
plugins/ladspa/Makefile
plugins/byenergy/Makefile
plugins/example/Makefile
doc/Makefile
intl/Makefile
po/Makefile.in
])

AC_MSG_RESULT([
  ************************************************************
 * Sweep $VERSION:  Automatic configuration OK.
**
**  Configuration summary:
**
**     Experimental code: ....... ${ac_enable_experimental}
**     Audio device handling: ... $sweep_config_driver
**     PCM: libsndfile .......... $HAVE_LIBSNDFILE1
**     Ogg Vorbis support: ...... $HAVE_VORBIS
**     MPEG (MP3) loading: ...... $HAVE_MAD
**     Speex support: ........... $HAVE_SPEEX
**     Secret Rabbit Code: ...... $HAVE_LIBSAMPLERATE
**     Translations: ............ $ALL_LINGUAS
**
**  Installation directories:
**
**     Program: ................. ${prefix}/bin
**     Plugins: ................. $sweep_plugin_dir
**
**************************************************************
**
**  Type 'make' to compile Sweep.
**
**  Type 'make install' to install Sweep. Plugins will not be
**  accessible until you have done this.
**  
**  Have fun with Scrubby!
 *
  ************************************************************
])

fi