dnl
dnl portaudio V19 configure.in script
dnl
dnl Dominic Mazzoni, Arve Knudsen, Stelios Bounanos
dnl

dnl Require autoconf >= 2.13
AC_PREREQ(2.13)

dnl Init autoconf and make sure configure is being called
dnl from the right directory
AC_INIT([include/portaudio.h])

dnl Define build, build_cpu, build_vendor, build_os
AC_CANONICAL_BUILD
dnl Define host, host_cpu, host_vendor, host_os
AC_CANONICAL_HOST
dnl Define target, target_cpu, target_vendor, target_os
AC_CANONICAL_TARGET

dnl Specify options

AC_ARG_WITH(alsa,
            AS_HELP_STRING([--with-alsa], [Enable support for ALSA @<:@autodetect@:>@]),
            [with_alsa=$withval])

AC_ARG_WITH(jack,
            AS_HELP_STRING([--with-jack], [Enable support for JACK @<:@autodetect@:>@]),
            [with_jack=$withval])

AC_ARG_WITH(oss,
            AS_HELP_STRING([--with-oss], [Enable support for OSS @<:@autodetect@:>@]),
            [with_oss=$withval])

AC_ARG_WITH(asihpi,
            AS_HELP_STRING([--with-asihpi], [Enable support for ASIHPI @<:@autodetect@:>@]),
            [with_asihpi=$withval])

AC_ARG_WITH(winapi,
            AS_HELP_STRING([--with-winapi],
                           [Select Windows API support (@<:@wmme|directx|asio|wasapi|wdmks@:>@@<:@,...@:>@) @<:@wmme@:>@]),
            [with_winapi=$withval], [with_winapi="wmme"])
case "$target_os" in *mingw* | *cygwin*)
     with_wmme=no
     with_directx=no
     with_asio=no
     with_wasapi=no
     with_wdmks=no
     for api in $(echo $with_winapi | sed 's/,/ /g'); do
         case "$api" in
             wmme|directx|asio|wasapi|wdmks)
                 eval with_$api=yes
                 ;;
             *)
                 AC_MSG_ERROR([unknown Windows API \"$api\" (do you need --help?)])
                 ;;
         esac
     done
     ;;
esac

AC_ARG_WITH(asiodir,
            AS_HELP_STRING([--with-asiodir], [ASIO directory @<:@/usr/local/asiosdk2@:>@]),
            with_asiodir=$withval, with_asiodir="/usr/local/asiosdk2")

AC_ARG_WITH(dxdir,
            AS_HELP_STRING([--with-dxdir], [DirectX directory @<:@/usr/local/dx7sdk@:>@]),
            with_dxdir=$withval, with_dxdir="/usr/local/dx7sdk")

debug_output=no
AC_ARG_ENABLE(debug-output,
              AS_HELP_STRING([--enable-debug-output], [Enable debug output @<:@no@:>@]),
              [if test "x$enableval" != "xno" ; then
                  AC_DEFINE(PA_ENABLE_DEBUG_OUTPUT,,[Enable debugging messages])
                  debug_output=yes
               fi
              ])

AC_ARG_ENABLE(cxx,
              AS_HELP_STRING([--enable-cxx], [Enable C++ bindings @<:@no@:>@]),
              enable_cxx=$enableval, enable_cxx="no")

AC_ARG_ENABLE(mac-debug,
              AS_HELP_STRING([--enable-mac-debug], [Enable Mac debug @<:@no@:>@]),
              enable_mac_debug=$enableval, enable_mac_debug="no")

AC_ARG_ENABLE(mac-universal,
              AS_HELP_STRING([--enable-mac-universal], [Build Mac universal binaries @<:@yes@:>@]),
              enable_mac_universal=$enableval, enable_mac_universal="yes")

dnl Continue to accept --host_os for compatibility but do not document
dnl it (the correct way to change host_os is with --host=...).  Moved
dnl here because the empty help string generates a blank line which we
dnl can use to separate PA options from libtool options.
AC_ARG_WITH(host_os, [], host_os=$withval)

dnl Checks for programs.

AC_PROG_CC
dnl ASIO and CXX bindings need a C++ compiler
if [[ "$with_asio" = "yes" ] || [ "$enable_cxx" = "yes" ]] ; then
       AC_PROG_CXX
fi
AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PATH_PROG(AR, ar, no)
if [[ $AR = "no" ]] ; then
    AC_MSG_ERROR("Could not find ar - needed to create a library")
fi

dnl This must be one of the first tests we do or it will fail...
AC_C_BIGENDIAN

dnl checks for various host APIs and arguments to configure that
dnl turn them on or off

have_alsa=no
if test "x$with_alsa" != "xno"; then
    AC_CHECK_LIB(asound, snd_pcm_open, have_alsa=yes, have_alsa=no)
fi
have_asihpi=no
if test "x$with_asihpi" != "xno"; then
    AC_CHECK_LIB(hpi, HPI_SubSysCreate, have_asihpi=yes, have_asihpi=no, -lm)
fi
have_libossaudio=no
have_oss=no
if test "x$with_oss" != "xno"; then
    AC_CHECK_HEADERS([sys/soundcard.h linux/soundcard.h machine/soundcard.h], [have_oss=yes])
    if test "x$have_oss" = "xyes"; then
        AC_CHECK_LIB(ossaudio, _oss_ioctl, have_libossaudio=yes, have_libossaudio=no)
    fi
fi
have_jack=no
if test "x$with_jack" != "xno"; then
    PKG_CHECK_MODULES(JACK, jack, have_jack=yes, have_jack=no)
fi


dnl sizeof checks: we will need a 16-bit and a 32-bit type

AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)

save_LIBS="${LIBS}"
AC_CHECK_LIB(rt, clock_gettime, [rt_libs=" -lrt"])
LIBS="${LIBS}${rt_libs}"
DLL_LIBS="${DLL_LIBS}${rt_libs}"
AC_CHECK_FUNCS([clock_gettime nanosleep])
LIBS="${save_LIBS}"

dnl LT_RELEASE=19
LT_CURRENT=2
LT_REVISION=0
LT_AGE=0

AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)

dnl extra variables
AC_SUBST(OTHER_OBJS)
AC_SUBST(PADLL)
AC_SUBST(SHARED_FLAGS)
AC_SUBST(THREAD_CFLAGS)
AC_SUBST(DLL_LIBS)
AC_SUBST(CXXFLAGS)
AC_SUBST(NASM)
AC_SUBST(NASMOPT)
AC_SUBST(INCLUDES)

dnl -g is optional on darwin
if ( echo "${host_os}" | grep ^darwin >> /dev/null ) &&
      [[ "$enable_mac_universal" = "yes" ] &&
       [ "$enable_mac_debug" != "yes" ]] ; then
   CFLAGS="-O2 -Wall -pedantic -pipe -fPIC -DNDEBUG"
else
   CFLAGS=${CFLAGS:-"-g -O2 -Wall -pedantic -pipe -fPIC"}
fi

if [[ $ac_cv_c_bigendian = "yes" ]] ; then
   CFLAGS="$CFLAGS -DPA_BIG_ENDIAN"
else
   CFLAGS="$CFLAGS -DPA_LITTLE_ENDIAN"
fi

add_objects()
{
    for o in $@; do
        test "${OTHER_OBJS#*${o}*}" = "${OTHER_OBJS}" && OTHER_OBJS="$OTHER_OBJS $o"
    done
}

INCLUDES=portaudio.h

dnl Include directories needed by all implementations
CFLAGS="$CFLAGS -I\$(top_srcdir)/include -I\$(top_srcdir)/src/common"

case "${host_os}" in
  darwin* )
        dnl Mac OS X configuration

        AC_DEFINE(PA_USE_COREAUDIO,1)

        CFLAGS="$CFLAGS -I\$(top_srcdir)/src/os/unix -Werror"
        LIBS="-framework CoreAudio -framework AudioToolbox -framework AudioUnit -framework Carbon"

        if test "x$enable_mac_universal" = "xyes" ; then
           if [[ -d /Developer/SDKs/MacOSX10.5.sdk ]] ; then
              mac_version_min="-mmacosx-version-min=10.3"
              mac_arches="-arch i386 -arch ppc -arch x86_64 -arch ppc64"
              mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.5.sdk"
           elif [[ -d /Developer/SDKs/MacOSX10.6.sdk ]] ; then
              mac_version_min="-mmacosx-version-min=10.4"
              mac_arches="-arch i386 -arch x86_64"
              mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.6.sdk"
           elif [[ -d /Developer/SDKs/MacOSX10.7.sdk ]] ; then
              mac_version_min="-mmacosx-version-min=10.4"
              mac_arches="-arch i386 -arch x86_64"
              mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.7.sdk"
           else
              mac_version_min="-mmacosx-version-min=10.3"
              mac_arches="-arch i386 -arch ppc"
              mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
           fi
        else
           mac_arches=""
           mac_sysroot=""
           mac_version=""
        fi
        SHARED_FLAGS="$LIBS -dynamiclib $mac_arches $mac_sysroot $mac_version_min"
        CFLAGS="-std=c99 $CFLAGS $mac_arches $mac_sysroot $mac_version_min"
        OTHER_OBJS="src/os/unix/pa_unix_hostapis.o src/os/unix/pa_unix_util.o src/hostapi/coreaudio/pa_mac_core.o src/hostapi/coreaudio/pa_mac_core_utilities.o src/hostapi/coreaudio/pa_mac_core_blocking.o src/common/pa_ringbuffer.o"
        PADLL="libportaudio.dylib"
        ;;

  mingw* )
        dnl MingW configuration

        PADLL="portaudio.dll"
        THREAD_CFLAGS="-mthreads"
        SHARED_FLAGS="-shared"
        CFLAGS="$CFLAGS -I\$(top_srcdir)/src/os/win -DPA_USE_WMME=0 -DPA_USE_ASIO=0 -DPA_USE_WDMKS=0 -DPA_USE_DS=0 -DPA_USE_WASAPI=0"

        if [[ "x$with_directx" = "xyes" ]]; then
            DXDIR="$with_dxdir"
            add_objects src/hostapi/dsound/pa_win_ds.o src/hostapi/dsound/pa_win_ds_dynlink.o src/os/win/pa_win_hostapis.o src/os/win/pa_win_util.o src/os/win/pa_win_coinitialize.o src/os/win/pa_win_waveformat.o
            LIBS="-lwinmm -lm -ldsound -lole32"
            DLL_LIBS="${DLL_LIBS} -lwinmm -lm -L$DXDIR/lib -ldsound -lole32"
            #VC98="\"/c/Program Files/Microsoft Visual Studio/VC98/Include\""
            #CFLAGS="$CFLAGS -I$VC98 -DPA_NO_WMME -DPA_NO_ASIO"
            CFLAGS="$CFLAGS -I$DXDIR/include -UPA_USE_DS -DPA_USE_DS=1"
        fi

        if [[ "x$with_asio" = "xyes" ]]; then
            ASIODIR="$with_asiodir"
            add_objects src/hostapi/asio/pa_asio.o src/common/pa_ringbuffer.o src/os/win/pa_win_hostapis.o src/os/win/pa_win_util.o src/os/win/pa_win_coinitialize.o src/hostapi/asio/iasiothiscallresolver.o $ASIODIR/common/asio.o $ASIODIR/host/asiodrivers.o $ASIODIR/host/pc/asiolist.o
            LIBS="-lwinmm -lm -lole32 -luuid"
            DLL_LIBS="${DLL_LIBS} -lwinmm -lm -lole32 -luuid"
            CFLAGS="$CFLAGS -ffast-math -fomit-frame-pointer -I\$(top_srcdir)/src/hostapi/asio -I$ASIODIR/host/pc -I$ASIODIR/common -I$ASIODIR/host -UPA_USE_ASIO -DPA_USE_ASIO=1 -DWINDOWS"

            dnl Setting the windows version flags below resolves a conflict between Interlocked* 
            dnl definitions in mingw winbase.h and Interlocked* hacks in ASIO SDK combase.h 
            dnl combase.h is included by asiodrvr.h
            dnl PortAudio does not actually require Win XP (winver 501) APIs 
            CFLAGS="$CFLAGS -D_WIN32_WINNT=0x0501 -DWINVER=0x0501"
            
            CXXFLAGS="$CFLAGS"
        fi

        if [[ "x$with_wdmks" = "xyes" ]]; then
            DXDIR="$with_dxdir"
            add_objects src/hostapi/wdmks/pa_win_wdmks.o src/os/win/pa_win_hostapis.o src/os/win/pa_win_util.o
            LIBS="-lwinmm -lm -luuid -lsetupapi -lole32"
            DLL_LIBS="${DLL_LIBS} -lwinmm -lm -L$DXDIR/lib -luuid -lsetupapi -lole32"
            #VC98="\"/c/Program Files/Microsoft Visual Studio/VC98/Include\""
            #CFLAGS="$CFLAGS -I$VC98 -DPA_NO_WMME -DPA_NO_ASIO"
            CFLAGS="$CFLAGS -I$DXDIR/include -UPA_USE_WDMKS -DPA_USE_WDMKS=1"
        fi

        if [[ "x$with_wmme" = "xyes" ]]; then
            add_objects src/hostapi/wmme/pa_win_wmme.o src/os/win/pa_win_hostapis.o src/os/win/pa_win_util.o src/os/win/pa_win_waveformat.o
            LIBS="-lwinmm -lm -lole32 -luuid"
            DLL_LIBS="${DLL_LIBS} -lwinmm"
            CFLAGS="$CFLAGS -UPA_USE_WMME -DPA_USE_WMME=1"
        fi

        if [[ "x$with_wasapi" = "xyes" ]]; then
            add_objects src/hostapi/wasapi/pa_win_wasapi.o src/common/pa_ringbuffer.o src/os/win/pa_win_hostapis.o src/os/win/pa_win_util.o src/os/win/pa_win_coinitialize.o src/os/win/pa_win_waveformat.o
            LIBS="-lwinmm -lm -lole32 -luuid"
            DLL_LIBS="${DLL_LIBS} -lwinmm -lole32"
            CFLAGS="$CFLAGS -I\$(top_srcdir)/src/hostapi/wasapi/mingw-include -UPA_USE_WASAPI -DPA_USE_WASAPI=1"
        fi
        ;;

  cygwin* )
        dnl Cygwin configuration

        OTHER_OBJS="src/hostapi/wmme/pa_win_wmme.o src/os/win/pa_win_hostapis.o src/os/win/pa_win_util.o src/os/win/pa_win_waveformat.o"
        CFLAGS="$CFLAGS -I\$(top_srcdir)/src/os/win -DPA_USE_DS=0 -DPA_USE_WDMKS=0 -DPA_USE_ASIO=0 -DPA_USE_WASAPI=0 -DPA_USE_WMME=1"
        LIBS="-lwinmm -lm"
        PADLL="portaudio.dll"
        THREAD_CFLAGS="-mthreads"
        SHARED_FLAGS="-shared"
        DLL_LIBS="${DLL_LIBS} -lwinmm"
        ;;

  irix* )
        dnl SGI IRIX audio library (AL) configuration (Pieter, oct 2-13, 2003).
        dnl The 'dmedia' library is needed to read the Unadjusted System Time (UST).
        dnl
        AC_CHECK_LIB(pthread, pthread_create, , AC_MSG_ERROR([IRIX posix thread library not found!]))
        AC_CHECK_LIB(audio,   alOpenPort,     , AC_MSG_ERROR([IRIX audio library not found!]))
        AC_CHECK_LIB(dmedia,  dmGetUST,       , AC_MSG_ERROR([IRIX digital media library not found!]))

        dnl See the '#ifdef PA_USE_SGI' in file pa_unix/pa_unix_hostapis.c
        dnl which selects the appropriate PaXXX_Initialize() function.
        dnl
        AC_DEFINE(PA_USE_SGI,1)

        CFLAGS="$CFLAGS -I\$(top_srcdir)/src/os/unix"

        dnl The _REENTRANT option for pthread safety. Perhaps not necessary but it 'll do no harm.
        dnl
        THREAD_CFLAGS="-D_REENTRANT"
    
        OTHER_OBJS="pa_sgi/pa_sgi.o src/os/unix/pa_unix_hostapis.o src/os/unix/pa_unix_util.o"

        dnl SGI books say -lpthread should be the last of the libs mentioned.
        dnl
        LIBS="-lm -ldmedia -laudio -lpthread"
        PADLL="libportaudio.so"
        SHARED_FLAGS=""
        ;;

  *)
        dnl Unix configuration

        CFLAGS="$CFLAGS -I\$(top_srcdir)/src/os/unix"
        
        AC_CHECK_LIB(pthread, pthread_create,[have_pthread="yes"],
                AC_MSG_ERROR([libpthread not found!]))

        if [[ "$have_alsa" = "yes" ] && [ "$with_alsa" != "no" ]] ; then
           DLL_LIBS="$DLL_LIBS -lasound"
           LIBS="$LIBS -lasound"
           OTHER_OBJS="$OTHER_OBJS src/hostapi/alsa/pa_linux_alsa.o"
           INCLUDES="$INCLUDES pa_linux_alsa.h"
           AC_DEFINE(PA_USE_ALSA,1)
        fi

        if [[ "$have_jack" = "yes" ] && [ "$with_jack" != "no" ]] ; then
           DLL_LIBS="$DLL_LIBS $JACK_LIBS"
           CFLAGS="$CFLAGS $JACK_CFLAGS"
           OTHER_OBJS="$OTHER_OBJS src/hostapi/jack/pa_jack.o src/common/pa_ringbuffer.o"
           INCLUDES="$INCLUDES pa_jack.h"
           AC_DEFINE(PA_USE_JACK,1)
        fi

        if [[ "$with_oss" != "no" ]] ; then
           OTHER_OBJS="$OTHER_OBJS src/hostapi/oss/pa_unix_oss.o"
           if [[ "$have_libossaudio" = "yes" ]] ; then
                   DLL_LIBS="$DLL_LIBS -lossaudio"
                   LIBS="$LIBS -lossaudio"
           fi
           AC_DEFINE(PA_USE_OSS,1)
        fi

        if [[ "$have_asihpi" = "yes" ] && [ "$with_asihpi" != "no" ]] ; then
           LIBS="$LIBS -lhpi"
           DLL_LIBS="$DLL_LIBS -lhpi"
           OTHER_OBJS="$OTHER_OBJS src/hostapi/asihpi/pa_linux_asihpi.o"
           AC_DEFINE(PA_USE_ASIHPI,1)
        fi

        DLL_LIBS="$DLL_LIBS -lm -lpthread"
        LIBS="$LIBS -lm -lpthread"
        PADLL="libportaudio.so"

        ## support sun cc compiler flags
        case "${host_os}" in
           solaris*)
              SHARED_FLAGS="-G"
              THREAD_CFLAGS="-mt"
              ;;
           *)
              SHARED_FLAGS="-fPIC"
              THREAD_CFLAGS="-pthread"
              ;;
        esac

        OTHER_OBJS="$OTHER_OBJS src/os/unix/pa_unix_hostapis.o src/os/unix/pa_unix_util.o"
esac
CFLAGS="$CFLAGS $THREAD_CFLAGS"

test "$enable_shared" != "yes" && SHARED_FLAGS=""

if test "$enable_cxx" = "yes"; then
   AC_CONFIG_SUBDIRS([bindings/cpp])
   ENABLE_CXX_TRUE=""
   ENABLE_CXX_FALSE="#"
else
   ENABLE_CXX_TRUE="#"
   ENABLE_CXX_FALSE=""
fi
AC_SUBST(ENABLE_CXX_TRUE)
AC_SUBST(ENABLE_CXX_FALSE)

if test "x$with_asio" = "xyes"; then
   WITH_ASIO_TRUE=""
   WITH_ASIO_FALSE="@ #"
else
   WITH_ASIO_TRUE="@ #"
   WITH_ASIO_FALSE=""
fi
AC_SUBST(WITH_ASIO_TRUE)
AC_SUBST(WITH_ASIO_FALSE)

AC_OUTPUT([Makefile portaudio-2.0.pc])

AC_MSG_RESULT([
Configuration summary:

  Target ...................... $target
  C++ bindings ................ $enable_cxx
  Debug output ................ $debug_output])

case "$target_os" in *linux*)
    AC_MSG_RESULT([
  ALSA ........................ $have_alsa
  ASIHPI ...................... $have_asihpi])
    ;;
esac
case "$target_os" in
    *mingw* | *cygwin*)
        test "x$with_directx" = "xyes" && with_directx="$with_directx (${with_dxdir})"
        test "x$with_wdmks" = "xyes" && with_wdmks="$with_wdmks (${with_dxdir})"
        test "x$with_asio" = "xyes" && with_asio="$with_asio (${with_asiodir})"
        test "x$with_wasapi" = "xyes"
        AC_MSG_RESULT([
  WMME ........................ $with_wmme
  DSound ...................... $with_directx
  ASIO ........................ $with_asio
  WASAPI ...................... $with_wasapi
  WDMKS ....................... $with_wdmks
])
        ;;
    *darwin*)
        AC_MSG_RESULT([
  Mac debug flags ............. $enable_mac_debug
])
        ;;
     *)
	AC_MSG_RESULT([
  OSS ......................... $have_oss
  JACK ........................ $have_jack
])
        ;;
esac
