dnl Process this file with autoconf to produce a configure script.
AC_INIT(d_arithmetic.c)

AC_SUBST(binarymode, -m755)
AC_SUBST(MORECFLAGS)
AC_SUBST(EXT)
AC_SUBST(DEFS)
AC_SUBST(OPT_CFLAGS)
AC_SUBST(SYSSRC)
AC_SUBST(STRIPFLAG)
AC_SUBST(GUINAME)
AC_SUBST(GUIFLAGS)
AC_SUBST(OSNUMBER)
AC_SUBST(EXTERNTARGET)
AC_SUBST(CC)
AC_SUBST(PDLIB)


dnl other defaults
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)


dnl Checks for libraries.
AC_CHECK_LIB(dl, dlopen, ,
    echo "dynamic link support required" || exit 1)
AC_CHECK_LIB(m, sin, ,
    echo "math library required" || exit 1)

AC_CHECK_LIB(pthread, pthread_create, ,
    echo "pthreads required" || exit 1)


dnl check for features
AC_ARG_ENABLE(alsa,    [  --disable-alsa          disable ALSA],
    alsa="no", alsa="yes")

AC_ARG_ENABLE(jack, [  --enable-jack           jack audio server],
    jack=$enableval, jack=no)

AC_ARG_ENABLE(portaudio, [  --enable-portaudio      portaudio],
    portaudio=$enableval,portaudio=no)

AC_ARG_ENABLE(debug, [  --enable-debug          debugging support],
    USE_DEBUG=$enableval,USE_DEBUG=no)

AC_ARG_ENABLE(static, [  --enable-static         link statically],
    LDFLAGS="$LDFLAGS -static")

AC_ARG_ENABLE(setuid,   [  --enable-setuid         install as setuid (linux)],
    setuid=yes)

AC_ARG_ENABLE(fftw, [  --enable-fftw           fftw3 support],
    AC_CHECK_LIB(fftw3f,fftwf_plan_dft_r2c_1d))

AC_ARG_ENABLE(icc, [  --enable-icc            icc support],
    CC=icc; icc=yes)

AC_ARG_ENABLE(optimize, [  --enable-optimize       enables optimized builds for: pentium4, pentium3, G4, G5],
    optimize=$enableval,
    MORECFLAGS=$MORECFLAGS" -DDONTUSESIMD")

AC_ARG_ENABLE(simd, [  --enable-simd           use SIMD code (default=no)],
    simdcode=$enableval,
    MORECFLAGS=$MORECFLAGS" -DDONTUSESIMD")

AC_ARG_ENABLE(threadedgui, [  --enable-threadedgui    use yves degoyon's threaded gui patch],
    MORECFLAGS=$MORECFLAGS" -DTHREADED_GUI")

AC_ARG_ENABLE(threadedsf, [  --enable-threadedsf     use threaded soundfiler],
    MORECFLAGS=$MORECFLAGS" -DTHREADED_SF -DGARRAY_THREAD_LOCK -D_GNU_SOURCE")

AC_ARG_ENABLE(gathreadlocks, [  --enable-gathreadlocks  t_garray threadlock],
    MORECFLAGS=$MORECFLAGS" -DGARRAY_THREAD_LOCK -D_GNU_SOURCE")


dnl Find paths to includes and libraries for X11
AC_PATH_X
LIBS="$LIBS -L$x_libraries"

dnl Checking for `XCreateWindow' function in -lX11:
AC_CHECK_LIB(X11, XCreateWindow, , 
	echo "no X11 found" || exit 1, -L$x_libraries)

dnl look for tcl 8.x...

tcllib=""

AC_CHECK_LIB(tcl8.7, main,tcllib=tcl8.7,
    AC_CHECK_LIB(tcl8.6, main,tcllib=tcl8.6,
	AC_CHECK_LIB(tcl8.5, main,tcllib=tcl8.5,
	    AC_CHECK_LIB(tcl8.4, main,tcllib=tcl8.4,
		AC_CHECK_LIB(tcl8.3, main,tcllib=tcl8.3,
		    AC_CHECK_LIB(tcl8.2, main,tcllib=tcl8.2,
        		AC_CHECK_LIB(tcl8.0, main,tcllib=tcl8.0,echo no tcl library found || exit 1)))))))

LIBS="$LIBS -l$tcllib"
tklib=${tcllib/tcl/tk}

AC_CHECK_LIB($tklib, main,,echo no tk library found || exit 1)

foundit=no
AC_CHECK_HEADER(tcl.h,foundit=yes)

if test "$foundit" = "no"; then
   AC_CHECK_HEADER($tcllib/tcl.h,
        GUIFLAGS="$GUIFLAGS -I/usr/include/$tcllib",
	    [echo no tcl header found];exit -1)
fi

if test x$jack == xyes; then   
    AC_CHECK_LIB(rt,shm_open)
    AC_CHECK_LIB(jack,jack_set_error_function)
    AC_CHECK_LIB(jack,jack_set_xrun_callback,
	MORECFLAGS="$MORECFLAGS -DJACK_XRUN"
    ) 
    
    SYSSRC=$SYSSRC" s_audio_jack.c"
    MORECFLAGS="$MORECFLAGS -DUSEAPI_JACK"
    PDLIB="$PDLIB -ljack"
fi

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

    dnl Set processor flags
    if test "$icc" == "yes"; then
       if test "$optimize" == "pentium4"; then
	  ARCH_CFLAGS="-xN -ip -ipo_obj"
       fi
       if test "$optimize" == "pentium3"; then
	  ARCH_CFLAGS="-xK -ip -ipo_obj"
       fi
    else
       if test "$optimize" == "pentium4"; then
	  ARCH_CFLAGS="-march=pentium4 -mmmx -msse -msse2 -mfpmath=sse"
       fi
       if test "$optimize" == "pentium3"; then
	  ARCH_CFLAGS="-march=pentium3 -mmmx -msse -mfpmath=sse"
       fi
       if test "$optimize" == "pentium2"; then
	  ARCH_CFLAGS="-march=pentium2 -mmmx";
	  MORECFLAGS=$MORECFLAGS" -DDONTUSESIMD"	  
       fi
       if test "$optimize" == "pentium"; then
	  ARCH_CFLAGS="-march=pentium"
	  MORECFLAGS=$MORECFLAGS" -DDONTUSESIMD"	  
       fi
    fi	       

    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"

    EXT=pd_linux
    MORECFLAGS=$MORECFLAGS" -DPA_USE_OSS -DPA_LITTLE_ENDIAN -DUNIX -DUNISTD -DUNIX -DUNISTDo\
    	 -DUSEAPI_OSS \
        -I../portaudio/pa_common -I../portaudio/pablio \
        -I../portaudio/portmidi-macosx \
	-fno-strict-aliasing"
    SYSSRC=$SYSSRC" s_midi_oss.c s_audio_oss.c"
    if test x$alsa == "xyes";
    then
    	SYSSRC=$SYSSRC" s_audio_alsa.c s_audio_alsamm.c"
	MORECFLAGS=$MORECFLAGS" -DPA_USE_ALSA -DUSEAPI_ALSA"
	LDFLAGS=$LDFLAGS" -lasound"
    fi

    if test x$portaudio == "xyes";
    then
    	MORECFLAGS=$MORECFLAGS" -DUSEAPI_PORTAUDIO -DPA19"$MORECFLAGS
	SYSSRC=$SYSSRC" s_audio_pa.c \
	s_audio_pablio.c \
	s_audio_paring.c \
	../portaudio/pa_common/pa_allocation.c  \
	../portaudio/pa_common/pa_converters.c  \
	../portaudio/pa_common/pa_cpuload.c     \
	../portaudio/pa_common/pa_dither.c      \
	../portaudio/pa_common/pa_front.c       \
	../portaudio/pa_common/pa_process.c     \
	../portaudio/pa_common/pa_skeleton.c    \
	../portaudio/pa_common/pa_stream.c      \
	../portaudio/pa_common/pa_trace.c       \
	../portaudio/pa_unix/pa_unix_hostapis.c \
	../portaudio/pa_unix/pa_unix_util.c     \
	../portaudio/pa_unix_oss/pa_unix_oss.c "
	if test x$alsa == "xyes";
	then
	    SYSSRC=$SYSSRC" ../portaudio/pa_linux_alsa/pa_linux_alsa.c"
    	MORECFLAGS=$MORECFLAGS" -Wno-error"
		fi
    fi

	if test x$setuid == "xyes";
    then
    	binarymode="-m4755"
    fi

    STRIPFLAG=-s
    GUINAME="pd-gui"
    if test x$USE_DEBUG == "xyes"; then
        OPT_CFLAGS="-g"
    else
        if test "$icc" = "yes"; then
            OPT_CFLAGS=$ARCH_CFLAGS" -O3"
        else
            OPT_CFLAGS=$ARCH_CFLAGS" -O3 -funroll-loops -fomit-frame-pointer"
        fi
    fi

    dnl we have to add the OPT_CFLAGS to the LD_FLAGS to make sure that icc
    dnl links with the right libraries - timblechmann@gmx.de
    if test "$icc" = "yes"; then
	LDFLAGS=$LDFLAGS" "$OPT_CFLAGS
    fi

    echo OPT_CFLAGS --------------- $OPT_CFLAGS
    OSNUMBER=0
fi

if test `uname -s` == Darwin;
then
    LDFLAGS=$LDFLAGS" -Wl  -framework CoreAudio \
        -framework AudioUnit -framework AudioToolbox \
        -framework Carbon -framework CoreMIDI"
    EXT=pd_darwin
    MORECFLAGS=$MORECFLAGS" -DMACOSX -DUNISTD -I/usr/X11R6/include \
	 -I../portaudio_v18/pa_common -I../portaudio_v18/pablio \
	-I../portmidi_osx \
	-Wno-error \
	-DUSEAPI_PORTAUDIO -DPA_BIG_ENDIAN"
    SYSSRC=$SYSSRC" s_midi_pm.c s_audio_pa.c s_audio_pablio.c s_audio_paring.c \
	../portaudio/pa_common/pa_lib.c \
	../portaudio/pa_common/pa_trace.c \
	../portaudio/pa_common/pa_convert.c \
	../portaudio/pa_mac_core/pa_mac_core.c \
        ../portmidi_osx/pmdarwin.c \
        ../portmidi_osx/pmmacosx.c \
        ../portmidi_osx/pmutil.c \
        ../portmidi_osx/portmidi.c \
        ../portmidi_osx/ptdarwin.c "
    STRIPFLAG=""
    GUINAME="pdtcl"
    GUIFLAGS="-F../../Frameworks -framework Tcl -framework Tk \
        -I../../Frameworks/Tk.framework/Versions/Current/Headers \
        -I../../Frameworks/Tcl.framework/Versions/Current/Headers \
        -I../../Frameworks/Tcl.framework/Versions/8.4/PrivateHeaders"
        
    if test x$USE_DEBUG == "xyes"; then
        OPT_CFLAGS="-g"
    else
        OPT_CFLAGS="-O3"
    fi
    
    OSNUMBER=2
    EXTERNTARGET=pd_darwin
    
    dnl Set processor flags
    if test "$optimize" == "G3"; then
        OPT_CFLAGS=$OPT_CFLAGS" -mtune=G3 -mcpu=G3 -malign-natural"
    fi
    if test "$optimize" == "G4"; then
        OPT_CFLAGS=$OPT_CFLAGS" -mtune=G4 -mcpu=G4 -maltivec -malign-natural"
    fi
    if test "$optimize" == "G5"; then
        OPT_CFLAGS=$OPT_CFLAGS" -march=G5 -cpu=G5 -maltivec -malign-natural"
    fi	       

    dnl Enable SIMD instructions
    if test "$simdcode" == "yes"; then
        OPT_CFLAGS=$OPT_CFLAGS" -faltivec"
    fi	
fi

# extra flags for alpha machines
if test `uname -m | awk '{print $1}'` = alpha;
then
    MORECFLAGS=$MORECFLAGS" -mieee -mcpu=ev56"
fi

# test for compaq compiler---not sure what this does or how to test it.
if test x$CC == xccc;
then
    MORECFLAGS=$MORECFLAGS"  -g3 -D__COMPAQC__ -arch host"
fi

dnl test for xmmintrin.h header file
CFLAGS=$OPT_CFLAGS
AC_TRY_COMPILE([#]include "xmmintrin.h", ,MORECFLAGS=$MORECFLAGS" -DDAZ",)

AC_OUTPUT(makefile)