configure.ac

AC_PREREQ(2.59)
AC_INIT(pd,0.43.1)
AC_CONFIG_SRCDIR(src/m_pd.c)
AC_CONFIG_AUX_DIR([m4/config])
AM_INIT_AUTOMAKE
AC_CONFIG_MACRO_DIR([m4/generated])

AC_CANONICAL_HOST

# you will need to install iPhone XCode on Mac OS X to use this:
PD_CHECK_IPHONE(IPHONEOS=yes, IPHONEOS=no, AC_MSG_ERROR([iPhoneOS SDK not available]))
PD_CHECK_ANDROID(ANDROID=yes, ANDROID=no , AC_MSG_ERROR([Android SDK not available]))

case $host in
*darwin*)
	if test "x${IPHONEOS}" = "xno"; then
	 portaudio=yes
	 portmidi=yes
	 MACOSX=yes

	 EXTERNAL_CFLAGS="-fPIC"
	 EXTERNAL_EXTENSION=d_fat
	else
	 portaudio=no

	 EXTERNAL_CFLAGS=
	 EXTERNAL_EXTENSION=pd_darwin
	fi

	CFLAGS="$CFLAGS -O3 -funroll-loops"
	INCLUDES="$INCLUDES -I/sw/include"
	LDFLAGS="$LDFLAGS -L/sw/lib"
	EXTERNAL_LDFLAGS="-bundle -undefined dynamic_lookup"
	;;
*linux*|GNU|GNU/kFreeBSD)
# GNU and GNU/kFreeBSD are for Debian, were they are treated very similar to linux
	if test "x${host}" = "xGNU"; then
	 HURD=yes
	fi
	if test "x${ANDROID}" = "xno"; then
	 LINUX=yes
	 portaudio=yes
	 CFLAGS="$CFLAGS -O6 -funroll-loops"
	fi
	EXTERNAL_CFLAGS="-fPIC"
	EXTERNAL_LDFLAGS="-Wl,--export-dynamic -shared -fPIC"
	EXTERNAL_EXTENSION=pd_linux
	;;
*mingw*)
	WINDOWS=yes
	MINGW=yes
    asio=yes
	portaudio=yes
	CFLAGS="$CFLAGS -O6 -funroll-loops"
	EXTERNAL_CFLAGS="-mms-bitfields"
	EXTERNAL_LDFLAGS="-s -shared -Wl,--enable-auto-import -lpd"
	EXTERNAL_EXTENSION=dll
	;;
*cygwin*)
	WINDOWS=yes
	CYGWIN=yes
	portaudio=yes
	CFLAGS="$CFLAGS -O6 -funroll-loops"
	EXTERNAL_CFLAGS=
	EXTERNAL_LDFLAGS="-Wl,--export-dynamic -shared -lpd"
	EXTERNAL_EXTENSION=dll
	;;
esac

PD_CHECK_UNIVERSAL(ARCH, universal=yes, universal=no)
AM_CONDITIONAL(UNIVERSAL, test x$universal = xyes)
if test "x${universal}" = "xyes"; then
 CFLAGS="${CFLAGS} ${ARCH_CFLAGS}"
 LDFLAGS="${LDFLAGS} ${ARCH_LDFLAGS}"
fi

AM_CONDITIONAL(ANDROID, test x$ANDROID = xyes)
AM_CONDITIONAL(IPHONEOS, test x$IPHONEOS = xyes)
AM_CONDITIONAL(LINUX, test x$LINUX = xyes)
AM_CONDITIONAL(HURD, test x$HURD = xyes)
AM_CONDITIONAL(MACOSX, test x$MACOSX = xyes)
AM_CONDITIONAL(WINDOWS, test x$WINDOWS = xyes)
AM_CONDITIONAL(CYGWIN, test x$MINGW = xyes)
AM_CONDITIONAL(MINGW, test x$MINGW = xyes)

# Configure libtool
AC_LIBTOOL_DLOPEN
AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL

# Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_LIBTOOL
AC_PROG_MAKE_SET
AC_PROG_LN_S
#AC_PROG_GREP
#AC_PROG_SED

AC_SUBST(EXTERNTARGET)
AC_SUBST(INCLUDES)

AC_SUBST(EXTERNAL_EXTENSION)
AC_SUBST(EXTERNAL_CFLAGS)
AC_SUBST(EXTERNAL_LDFLAGS)

dnl Checks for libraries.
AC_CHECK_LIB([dl], [dlopen])
AC_CHECK_LIBM
# AC_CHECK_LIBM computes LIBM but does not add to LIBS, hence we add it in
# src/Makefile.am under pd_LDFLAGS as well

# Checking for `pthread_create' function in -pthread (MinGW uses unusual names)
## CHECK whether this can be replaced by AX_PTHREAD
AC_CHECK_LIB([pthread], [pthread_create],LIBS="-lpthread $LIBS",
    AC_CHECK_LIB([pthreadGC2], [pthread_create], LIBS="-lpthreadGC2 $LIBS",
        AC_CHECK_LIB([pthreadGC1], [pthread_create], LIBS="-lpthreadGC1 $LIBS",
            AC_CHECK_LIB([pthreadGC], [pthread_create], LIBS="-lpthreadGC $LIBS",
         AC_MSG_WARN([pthreads required])))))

AC_HEADER_STDC

dnl Cygwin has sys/soundcard.h but Pd isn't ready for Cygwin since it only 
dnl includes OSS for UNIX
AC_CHECK_HEADER(sys/soundcard.h, [oss=yes], [oss=no])
AM_CONDITIONAL(OSS, test x$oss = xyes)

AC_CHECK_HEADER(CoreAudio/CoreAudio.h, [coreaudio=yes], [coreaudio=no])
dnl AC_CHECK_HEADER(Jackmp/jack.h, [jack=yes], [jack=no])

dnl portaudio/CoreAudio doesn't work with iPhone
test x$IPHONEOS = xyes && coreaudio=no

AM_CONDITIONAL(COREAUDIO, test x$coreaudio = xyes)

dnl TODO implement debug and static
#AC_ARG_ENABLE(static,   [  --enable-static         link statically],
#    static=$enableval)

AC_ARG_ENABLE([debug],
	[AS_HELP_STRING([--enable-debug], [use debugging support])],
		[debug=$enableval])
if test x$debug = xyes; then
    CFLAGS="$CFLAGS -g"
else
    # -fomit-frame-pointer causes problems when debugging
    CFLAGS="$CFLAGS -fomit-frame-pointer"
fi

dnl ALSA
dnl shouldn't we use AM_PATH_ALSA from /usr/share/aclocal/alsa.m4
dnl alternatively we could use pkg-config
AC_ARG_ENABLE([alsa],
	[AS_HELP_STRING([--disable-alsa],
		[do not use ALSA audio driver])],
    [alsa=$enableval], [alsa=yes])
AS_IF([test x$alsa = xyes], [
    AC_CHECK_LIB(asound,snd_pcm_info,LIBS="$LIBS -lasound",alsa=no)])
AM_CONDITIONAL(ALSA, test x$alsa = xyes)

dnl ASIO
AC_ARG_ENABLE([asio],
	[AS_HELP_STRING([--enable-asio],
		[use ASIO audio driver])],
    [asio=$enableval])
AS_IF([test x$asio = xyes], [
    AC_CHECK_FILE([asio/ASIOSDK2/common/asio.h],[asio=yes],[asio=no])])
AM_CONDITIONAL(ASIO, test x$asio = xyes)

dnl JACK
dnl shouldn't we use pkg-config?
dnl TODO support jack xrun
AC_ARG_ENABLE([jack],
	[AS_HELP_STRING([--enable-jack],
		[use JACK audio server])],
	[jack=$enableval])
dnl on Mac OS X, use the JackOSX.com Jackmp.framework not the jack lib.
dnl this is set in src/Makefile.am based on the JACK var
AS_IF([test x$MACOSX != xyes], [
    AS_IF([test x$jack = xyes], [
        AC_CHECK_LIB(rt,shm_open,LIBS="$LIBS -lrt")
        AC_CHECK_LIB(jack,jack_set_xrun_callback,LIBS="$LIBS -ljack";jack=xrun)
        AC_CHECK_LIB(jack,jack_set_error_function,LIBS="$LIBS -ljack";jack=yes,
	              jack=no)])])
AM_CONDITIONAL(JACK, test x$jack = xyes)

dnl portaudio
AC_ARG_ENABLE([portaudio],
		[AS_HELP_STRING([--disable-portaudio],
			[do not use portaudio])],
    	[portaudio=$enableval])	
AM_CONDITIONAL(PORTAUDIO, test x$portaudio = xyes)

dnl portmidi
AC_ARG_ENABLE([portmidi],
	[AS_HELP_STRING([--enable-portmidi],
		[use portmidi])],
    [portmidi=$enableval])
AM_CONDITIONAL(PORTMIDI, test x$portmidi = xyes)
if test x$portmidi = xyes; then echo Using included portmidi; fi

dnl fftw v2
AC_ARG_ENABLE([fftw],
	[AS_HELP_STRING([--enable-fftw],
		[use FFTW package])],
    [fftw=$enableval])
if test x$fftw = xyes; then
    AC_CHECK_LIB(fftw, fftw_one, [LIBS="$LIBS -lfftw"],
        [AC_MSG_NOTICE([fftw package not found - using built-in FFT]); fftw=no])
fi
AM_CONDITIONAL(FFTW, test x$fftw = xyes)

dnl are any of these actually needed on any platform we use?
dnl Currently, our build system does not actually do anything with the
dnl results of these tests, so there is not a lot of reason to include
dnl them, and they sure do slow down the build process.

# Checks for header files.
AC_FUNC_ALLOCA
AC_CHECK_HEADERS([sys/soundcard.h unistd.h bstring.h])
#AC_CHECK_HEADERS([fcntl.h limits.h malloc.h netdb.h netinet/in.h stddef.h stdlib.h string.h sys/ioctl.h sys/param.h sys/socket.h sys/soundcard.h sys/time.h sys/timeb.h unistd.h])

# Checks for typedefs, structures, and compiler characteristics.
#AC_TYPE_INT16_T
#AC_TYPE_INT32_T
#AC_TYPE_OFF_T
#AC_TYPE_PID_T
#AC_TYPE_SIZE_T

# Checks for library functions.
#AC_FUNC_ERROR_AT_LINE
#AC_FUNC_FORK
#AC_FUNC_MALLOC
#AC_FUNC_REALLOC
#AC_TYPE_SIGNAL
#AC_CHECK_FUNCS([dup2 floor getcwd gethostbyname gettimeofday memmove memset pow regcomp select socket sqrt strchr strerror strrchr strstr strtol])

# check for programs
AC_CHECK_PROG(HAVE_MSGFMT, [msgfmt], yes, no)
test x$HAVE_MSGFMT = xyes || AC_MSG_WARN([Install GNU gettext with msgfmt if you want localizations to be compiled!])
AM_CONDITIONAL(MSGFMT, test x$HAVE_MSGFMT = xyes)

# Specify what files are to be created.
AC_CONFIG_FILES([Makefile
                asio/Makefile
                man/Makefile
                portaudio/Makefile
                portmidi/Makefile
                tcl/Makefile
                po/Makefile
                src/Makefile
                pdextended.pc
                ])

AC_OUTPUT

dnl output some messages at the end

AS_IF([test x$windows = xyes], [
    AS_IF([test x$asio = xno], [
	    AC_MSG_RESULT(
ASIO SDK not found! You need to download asiosdk2.2.zip from: 
    http://www.steinberg.net/en/company/developer.html)])])