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# NOTE!!!
# ./configure is not a source file (not written by someone), it's generated from
# ./configure.in, but it's still put in the CVS and releases so that people don't
# have to have autoconf installed.

AC_INIT
AC_CONFIG_SRCDIR([kernel.c])
AC_SUBST(oss, yes)
AC_SUBST(alsa, yes)
AC_SUBST(jack, yes)
AC_SUBST(portaudio, yes)
AC_SUBST(portmidi, yes)
AC_SUBST(fftw, yes)
AC_SUBST(CPPFLAGS)
AC_SUBST(MORECFLAGS)
AC_SUBST(EXT)
AC_SUBST(USE_DEBUG_CFLAGS, no)
AC_SUBST(AUDIOSRC)
AC_SUBST(MIDISRC)
AC_SUBST(STRIPFLAG)
AC_SUBST(EXTERNTARGET)
AC_SUBST(LIBSUFFIX)
AC_SUBST(LDSOFLAGS)
AC_SUBST(WATCHDOG)
AC_SUBST(WLIB)
AC_SUBST(EXE)
AC_SUBST(WSTRIP)
AC_SUBST(STRIP)

AC_CONFIG_HEADERS([config.h:config.h.in])

dnl Checks for features.
AC_ARG_ENABLE(alsa,     [ --enable-oss       audio via OSS],              alsa=$enableval)
AC_ARG_ENABLE(alsa,     [ --enable-alsa      audio via ALSA],             alsa=$enableval)
AC_ARG_ENABLE(jack,     [ --enable-jack      audio via JACK],             jack=$enableval)
AC_ARG_ENABLE(portaudio,[ --enable-portaudio audio via PortAudio],        portaudio=$enableval)
AC_ARG_ENABLE(portmidi, [ --enable-portmidi  MIDI via PortMidi],          portmidi=$enableval)
AC_ARG_ENABLE(debug,    [ --enable-debug     debugging support],          USE_DEBUG_CFLAGS=$enableval)
AC_ARG_ENABLE(static,   [ --enable-static    link statically],            static=$enableval)
AC_ARG_ENABLE(fftw,     [ --enable-fftw      use FFTW package],           fftw=$enableval)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_CPP

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h limits.h malloc.h sys/ioctl.h sys/time.h unistd.h bstring.h)

dnl Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_TYPE_SIGNAL
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(gettimeofday select socket strerror)
AC_FUNC_ALLOCA

dnl added for win32 (for patko)
AC_CHECK_FUNCS(asprintf)
AC_CHECK_FUNCS(vasprintf)

# audio APIs may accumulate, but there must be only one MIDI API (??)
AUDIOSRC=""
MIDISRC="s_midi_none.c"

WLIB=""
STRIP="meuhhhhh"

if test `uname -s` = Linux; then
    LDFLAGS="-Wl,-export-dynamic "
    EXT=pd_linux
    LIBSUFFIX=.so
    CPPFLAGS="-DDL_OPEN -DPA_USE_OSS -DUNIX -DUNISTD"
    MORECFLAGS="-fno-strict-aliasing"
    STRIPFLAG=-s
    STRIP="echo"
    LDSOFLAGS="-shared"
    WATCHDOG=pd-watchdog
    EXE=""
    WSTRIP=""
fi

if test `uname -s` = Darwin; then
    LDFLAGS=""
    EXT=pd_darwin
    LIBSUFFIX=.dylib
    CPPFLAGS="-DMACOSX -DUNISTD -I/usr/X11R6/include -DPA_USE_COREAUDIO"
    CPPFLAGS=$CPPFLAGS" -DDL_OPEN" # 0.40
    MORECFLAGS=""
    STRIPFLAG=""
#    LDSOFLAGS="-dylib -bundle -flat_namespace -undefined suppress"
#    LDSOFLAGS="-dylib -flat_namespace"
# Charles Turner told me to use this:
    LDSOFLAGS="-dynamiclib -Wl,-single_module"
    EXTERNTARGET=pd_darwin
### this comes from pd 0.40
#    if test `uname -r` = 7.9.0; then
#	CPPFLAGS=$CPPFLAGS" -DMACOSX3"
#	EXTERNTARGET=d_ppc
#    else
#	CPPFLAGS=$CPPFLAGS" -isysroot /Developer/SDKs/MacOSX10.4u.sdk"
#	MORECFLAGS=$MORECFLAGS" -arch i386 -arch ppc"
#	EXTERNTARGET=d_fat
#	LDFLAGS=$LDFLAGS" -arch i386 -arch ppc"
#    fi
	WATCHDOG=pd-watchdog
	EXE=""
	WSTRIP=""
fi

if test `uname -s | cut -f1 -d_` = CYGWIN; then
    LDFLAGS="-Wl,-export-dynamic "
    EXT=dll
    LIBSUFFIX=.dll
    CPPFLAGS="-DDL_OPEN -DPA_USE_OSS -DUNIX -DUNISTD"
    MORECFLAGS="-fno-strict-aliasing"
    STRIPFLAG=-s
    LDSOFLAGS="-shared"
    EXE=.exe
    WSTRIP=""
fi

if test `uname -s | cut -f1 -d_` = MINGW32; then
    LDFLAGS="-lm -lpthreadGC2 -lwsock32 -lwinmm -lole32 -L../src -lpd"
    EXT=dll
    LIBSUFFIX=.dll
    CPPFLAGS="-DMSW \
    -DPD_INTERNAL -DPD "
    MORECFLAGS="-mms-bitfields"
    STRIPFLAG=-s
    LDSOFLAGS="-shared"
#   AUDIOSRC="s_audio_mmio.c"
    MIDISRC="s_midi_mmio.c"

    STRIP="strip --strip-unneeded -R .note -R .comment"
    EXPORT="-Wl, --export-all-symbols -Wl, --out-implib=pd.a"
    WLIB=$WLIB"$LDFLAGS $EXPORT; $STRIP libpd.dll"
    EXE=.exe
    WATCHDOG=pd.com
    WSTRIP=$STRIP $DESTDIR$bindir/pd.exe
fi

if test `uname -m` = x86_64; then
    MORECFLAGS=$MORECFLAGS" -fPIC"
fi

if test "$static" = yes; then LDFLAGS="$LDFLAGS -static"; fi

dnl Checking for `dlopen' function in -ldl:
AC_CHECK_LIB(dl, dlopen,LDFLAGS="$LDFLAGS -ldl", echo "dynamic link support required" || exit 1)
dnl Checking for `sin' function in -lffm (ffm is the fast math library on the alpha)
AC_CHECK_LIB(ffm, sin,LDFLAGS="$LDFLAGS -lffm")
dnl Checking for `sin' function in -lm:
AC_CHECK_LIB(m, sin,LDFLAGS="$LDFLAGS -lm", echo "math library required" || exit 1)
dnl Checking for `pthread_create' function in -pthread
AC_CHECK_LIB(pthread, pthread_create,LDFLAGS="$LDFLAGS -lpthread", echo "pthreads required" || exit 1)

if test x$oss = xyes; then
  AC_CHECK_HEADER(linux/soundcard.h,oss="yes",oss="no")
fi

dnl This should be fixed so Pd can use ALSA shared libraries where appropriate.
if test x$alsa = xyes; then
   AC_CHECK_LIB(asound,snd_pcm_info,LDFLAGS="$LDFLAGS -lasound" ; alsa="yes",alsa="no")
fi

if test x$jack = xyes; then
    AC_CHECK_LIB(rt,shm_open,LIBS="$LIBS -lrt")
    AC_CHECK_LIB(jack,jack_set_xrun_callback,jack=xrun,jack=no)
    AC_CHECK_LIB(jack,jack_set_error_function,jack=yes,jack=no)
fi

dnl This should be fixed so Pd can use ALSA shared libraries where appropriate.
if test x$portaudio = xyes; then
   AC_CHECK_LIB(portaudio,Pa_GetDeviceCount,LDFLAGS=$LDFLAGS" -lportaudio" ; portaudio=yes,portaudio=no)
fi

if test x$portmidi = xyes; then
   AC_CHECK_LIB(porttime,Pt_Started   ,LDFLAGS=$LDFLAGS" -lporttime")
   AC_CHECK_LIB(portmidi,Pm_Initialize,LDFLAGS=$LDFLAGS" -lportmidi" ; portmidi=yes,portmidi=no)
fi

if test x$USE_DEBUG_CFLAGS = xyes; then
    MORECFLAGS=$MORECFLAGS" -O1 -g"
else
    MORECFLAGS=$MORECFLAGS" -O3 -funroll-loops -fomit-frame-pointer"
fi

if test x$oss = xyes; then
    AUDIOSRC=$AUDIOSRC" s_audio_oss.c"
    MIDISRC="s_midi_oss.c"
    CPPFLAGS=$CPPFLAGS" -DUSEAPI_OSS"
fi

if test x$alsa = xyes; then
    # the alsa midi is weird, it needs to have another MIDI module at once, so i put it in "audio" instead.
    AUDIOSRC=$AUDIOSRC" s_audio_alsa.c s_audio_alsamm.c s_midi_alsa.c"
    CPPFLAGS=$CPPFLAGS" -DPA_USE_ALSA -DUSEAPI_ALSA"
    LDFLAGS=$LDFLAGS" -lasound"
fi

if test x$jack = xyes; then
  AUDIOSRC=$AUDIOSRC" s_audio_jack.c"
  if test x$jack != xno; then
      if test `uname -s` = Linux; then
          if test x$jack = "xyes"; then LDFLAGS=$LDFLAGS" -lrt -ljack"; fi
          if test x$jack = "xrun"; then LDFLAGS=$LDFLAGS" -lrt -ljack"; fi
      fi
      if test `uname -s` = Darwin; then
          LDFLAGS=$LDFLAGS" -weak_framework Jackmp" # 0.40
      else
          LIBS="$LIBS -ljack"
      fi
      CPPFLAGS=$CPPFLAGS" -DUSEAPI_JACK"
  fi
  if test x$jack = "xrun"; then CPPFLAGS=$CPPFLAGS" -DJACK_XRUN"; fi
fi

if test x$portaudio = xyes; then
    CPPFLAGS=$CPPFLAGS" -DUSEAPI_PORTAUDIO -DPA19"
    AUDIOSRC=$AUDIOSRC" s_audio_portaudio.c"
    if test `uname -s` = Darwin; then
        LDFLAGS=$LDFLAGS" -framework CoreAudio -framework AudioUnit -framework AudioToolbox -framework Carbon"
    fi
fi

if test x$portmidi = xyes; then
    MIDISRC="s_midi_pm.c"
    MIDIFLAGS="-DUSEAPI_PORTMIDI"
    if test `uname -s` = Darwin; then
        LDFLAGS=$LDFLAGS" -framework CoreMIDI"
    fi
fi

CPPFLAGS=$CPPFLAGS" $MIDIFLAGS"

if test x$fftw = "xyes"; then
    AC_CHECK_LIB(fftw3f, fftwf_forget_wisdom ,LDFLAGS=$LDFLAGS" -lfftw3f",fftw=no)
fi

AC_C_BIGENDIAN(bigendian=yes,bigendian=no,bigendian=maybe)
if test x$bigendian = "xyes"; then
    CPPFLAGS=$CPPFLAGS" -DBIGENDIAN"
fi

AC_CONFIG_FILES([makefile])
AC_OUTPUT