configure.ac

dnl Autoconf settings for vlc

AC_COPYRIGHT([Copyright 2002-2013 VLC authors and VideoLAN])

AC_INIT(vlc, 2.2.0-git)
VERSION_MAJOR=2
VERSION_MINOR=2
VERSION_REVISION=0
VERSION_EXTRA=0
VERSION_DEV=git

PKGDIR="vlc"
AC_SUBST(PKGDIR)

CONFIGURE_LINE="`echo "$0 $ac_configure_args" | sed -e 's/\\\/\\\\\\\/g'`"
CODENAME="Weatherwax"
COPYRIGHT_YEARS="1996-2013"

AC_CONFIG_SRCDIR(src/libvlc.c)
AC_CONFIG_AUX_DIR(autotools)
AC_CONFIG_MACRO_DIR(m4)
AC_CONFIG_LIBOBJ_DIR(compat)
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_PRESERVE_HELP_ORDER

AM_INIT_AUTOMAKE(tar-ustar color-tests foreign)
AC_CONFIG_HEADERS([config.h])

# Disable with "./configure --disable-silent-rules" or "make V=1"
AM_SILENT_RULES([yes])

dnl Too many people are not aware of maintainer mode:
dnl If you want to use it, you definitely know what you are doing, so
dnl you can specify "--disable-maintainer-mode". But if you want the default
dnl automake behavior, you've likely never heard of maintainer mode, so we
dnl can't expect you to enable it manually.
AS_IF([test "x${enable_maintainer_mode}" != "xno"],
    [enable_maintainer_mode="yes"])
AM_MAINTAINER_MODE

dnl
dnl Directories
dnl
dnl vlcincludedir="\${includedir}/\${PKGDIR}"
dnl AC_SUBST(vlcincludedir)
vlcdatadir="\${datadir}/\${PKGDIR}"
AC_SUBST(vlcdatadir)
vlclibdir="\${libdir}/\${PKGDIR}"
AC_SUBST(vlclibdir)

dnl
dnl Check for tools
dnl
AC_PROG_CC_C99
AC_USE_SYSTEM_EXTENSIONS
AC_DEFINE([_FORTIFY_SOURCE], 2, [Define to 2 to get glibc warnings.])
AC_DEFINE([_FILE_OFFSET_BITS], 64, [Define to 64 for large files support.])
AC_DEFINE([_REENTRANT],, [Define to expose reentrant functions.])
AC_DEFINE([_THREAD_SAFE],, [Same as _REENTANT for some other OSes.])
AC_DEFINE([__LIBVLC__],, [Define within the LibVLC source code tree.])
AC_DEFINE([WIN32_LEAN_AND_MEAN],, [Define to limit the scope of <windows.h>.])

AM_PROG_CC_C_O
AC_PROG_CXX
AC_PROG_CPP
AC_PROG_OBJC
_AM_DEPENDENCIES([OBJC])
AC_PROG_EGREP
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AM_PROG_AS

AC_ARG_VAR([DESKTOP_FILE_VALIDATE], [Validator for desktop entry files])
AC_CHECK_PROGS(DESKTOP_FILE_VALIDATE, [${DESKTOP_FILE_VALIDATE} desktop-file-validate], :)

dnl Check for compiler properties
AC_C_CONST
AC_C_INLINE
AC_C_RESTRICT

dnl Extend the --help string at the current spot.
AC_DEFUN([EXTEND_HELP_STRING], [m4_divert_once([HELP_ENABLE], [$1])])

dnl Allow binary package maintainer to pass a custom string to avoid
dnl cache problem
AC_ARG_WITH(binary-version,
    AS_HELP_STRING([--with-binary-version=STRING],
         [To avoid plugins cache problem between binary version]),[],[])
AS_IF([test -n "${with_binary_version}"],[
    AC_DEFINE_UNQUOTED([DISTRO_VERSION],["${with_binary_version}"],
         [Binary specific version])
])

dnl
dnl  Check the operating system
dnl
HAVE_WIN64="0"
case "${host_os}" in
  "")
    SYS=unknown
    ;;
  linux*)
    SYS=linux
    ;;
  bsdi*)
    SYS=bsdi
    CFLAGS="${CFLAGS} -pthread"
    ;;
  freebsd*)
    SYS=freebsd
    CFLAGS="${CFLAGS} -pthread"
    CPPFLAGS="${CPPFLAGS} -I/usr/local/include"
    LDFLAGS="${LDFLAGS} -L/usr/local/lib"
    ;;
  openbsd*)
    SYS=openbsd
    CPPFLAGS="${CPPFLAGS} -I/usr/local/include -I/usr/X11R6/include"
    LDFLAGS="${LDFLAGS} -L/usr/local/lib -L/usr/X11R6/lib/"
    ;;
  netbsd*)
    SYS=netbsd
    ;;
  dragonfly*)
    SYS=dragonfly
    ;;
  darwin*)

    dnl Force gcc "-arch" flag
    ARCH_flag=""
    case "${host}" in
      i?86*)
        ARCH_flag="-arch i386"
      ;;
      ppc64*)
        ARCH_flag="-arch ppc64"
      ;;
      ppc*)
        ARCH_flag="-arch ppc"
      ;;
      x86_64*)
        ARCH_flag="-arch x86_64"
      ;;
      arm*)
        ac_cv_c_bigendian="no"
        ac_cv_c_attribute_packed="no"
      ;;
    esac

    SYS=darwin
    CFLAGS="${CFLAGS} -D_INTL_REDIRECT_MACROS ${ARCH_flag}"
    CXXFLAGS="${CXXFLAGS} -D_INTL_REDIRECT_MACROS ${ARCH_flag}"
    CPPFLAGS="${CPPFLAGS} ${ARCH_flag}"
    OBJCFLAGS="${OBJCFLAGS} -D_INTL_REDIRECT_MACROS -std=gnu99 ${ARCH_flag}"
    LDFLAGS="${LDFLAGS} -Wl,-headerpad_max_install_names ${ARCH_flag}"
    VLC_ADD_LIBS([libvlc vlc],[-Wl,-undefined,dynamic_lookup,-framework,AppKit])
    VLC_ADD_LIBS([avcodec access_avio swscale postproc i420_rgb_mmx x262 x264 x26410b],[-Wl,-read_only_relocs,suppress])
    VLC_ADD_LIBS([libvlccore],[-Wl,-framework,CoreFoundation,-framework,CoreServices])

    dnl Allow binaries created on Lion to run on earlier releases
    AC_EGREP_CPP(yes,
           [#import <Cocoa/Cocoa.h>
            #ifdef MAC_OS_X_VERSION_10_7
            yes
            #endif],
            [AC_MSG_RESULT([yes])
            AC_LIBOBJ([getdelim])
            AC_LIBOBJ([strndup])
            AC_LIBOBJ([strnlen])],)

    dnl
    dnl  Handle Mac OS X SDK flags
    dnl
    AC_ARG_WITH(macosx-sdk,
      [AS_HELP_STRING([--with-macosx-sdk=DIR],
        [compile using the SDK in DIR])])
    if test "${with_macosx_sdk}" != "" ; then
        test ! -d "${with_macosx_sdk}" && AC_MSG_ERROR([SDK "${with_macosx_sdk}" not found])
        CPP="${CPP} -isysroot ${with_macosx_sdk}"
        CC="${CC} -isysroot ${with_macosx_sdk}"
        CXX="${CXX} -isysroot ${with_macosx_sdk}"
        OBJC="${OBJC} -isysroot ${with_macosx_sdk}"
        LD="${LD} -syslibroot ${with_macosx_sdk}"
    fi
    AC_ARG_WITH(macosx-version-min,
      [AS_HELP_STRING([--with-macosx-version-min=VERSION],
        [compile for Mac OS X VERSION and above])])
    if test "${with_macosx_version_min}" != "" ; then
        CPP="${CPP} -mmacosx-version-min=${with_macosx_version_min}"
        CC="${CC} -mmacosx-version-min=${with_macosx_version_min}"
        CXX="${CXX} -mmacosx-version-min=${with_macosx_version_min}"
        OBJC="${OBJC} -mmacosx-version-min=${with_macosx_version_min}"
        LD="${LD} -mmacosx_version_min=${with_macosx_version_min}"
    fi
    ;;
  *mingw32* | *cygwin* | *wince* | *mingwce*)
    AC_CHECK_TOOL(WINDRES, windres, :)
    AC_CHECK_TOOL(OBJCOPY, objcopy, :)
    AH_TOP([#if defined(_WIN32) && !defined(_WIN32_WINNT)])
    AH_TOP([# define _WIN32_WINNT 0x0502 /* Windows XP SP2 */])
    AH_TOP([#endif])
    AC_DEFINE([_WIN32_IE], 0x0600, [Define to '0x0600' for IE 6.0 (and shell) APIs.])
    AC_DEFINE([_UNICODE], [1], [Define to 1 for Unicode (Wide Chars) APIs.])
    AC_DEFINE([UNICODE], [1], [Define to 1 for Unicode (Wide Chars) APIs.])

    case "${host_os}" in
      *mingw32*)
        SYS=mingw32
        ;;
      *cygwin*)
        dnl Check if we are using the mno-cygwin mode in which case we are
        dnl actually dealing with a mingw32 compiler.
        AC_EGREP_CPP(yes,
            [#ifdef _WIN32
             yes
             #endif],
            SYS=mingw32, AC_MSG_ERROR([VLC requires -mno-cygwin]))
        ;;
    esac

    if test "${SYS}" = "mingw32"; then
        # DEP, ASLR, NO SEH
        LDFLAGS="${LDFLAGS} -Wl,--nxcompat -Wl,--no-seh -Wl,--dynamicbase"

        VLC_ADD_LIBS([libvlccore],[-lwinmm])
        VLC_ADD_LDFLAGS([vlc],[-mwindows])
        VLC_ADD_LIBS([win32text],[-lgdi32])
        AC_CHECK_PROGS(U2D, [unix2dos todos], unix2dos)
        ac_default_prefix="`pwd`/_win32"
        DESTDIR="`pwd`/_win32/"

        dnl
        dnl NSIS/MSI Installer prefix and WIN64
        dnl
        case "${host}" in
            amd64*|x86_64*)
                HAVE_WIN64="1"
                WINDOWS_ARCH="x64"
                PROGRAMFILES="PROGRAMFILES64"
            ;;
            *)
                WINDOWS_ARCH="x86"
                PROGRAMFILES="PROGRAMFILES"
            ;;
        esac
        AC_SUBST(WINDOWS_ARCH)
        AC_SUBST(PROGRAMFILES)

    fi
    ;;
  *nto*)
    SYS=nto
    ;;
  solaris*)
    SYS=solaris
    ;;
  hpux*)
    SYS=hpux
    ;;
  symbian*)
    SYS=symbian
    ;;
  *os2*)
    SYS=os2
    LDFLAGS="${LDFLAGS} -Zomf -Zbin-files -Zargs-wild"
    ;;
  *)
    SYS="${host_os}"
    ;;
esac
AM_CONDITIONAL(HAVE_DARWIN,  test "${SYS}" = "darwin")
AM_CONDITIONAL(HAVE_LINUX,   test "${SYS}" = "linux")
AM_CONDITIONAL(HAVE_OS2,     test "${SYS}" = "os2")
AM_CONDITIONAL(HAVE_WIN32,   test "${SYS}" = "mingw32")
AM_CONDITIONAL(HAVE_WIN64,   test "${HAVE_WIN64}" = "1")
AM_CONDITIONAL(HAVE_SYMBIAN, test "${SYS}" = "symbian")

dnl
dnl Sadly autoconf does not think about testing foo.exe when ask to test
dnl for program foo on win32
case "${build_os}" in
    cygwin|msys)
        ac_executable_extensions=".exe"
    ;;
    *)
    ;;
esac

dnl Android is linux, but a bit different
AS_IF([test "$SYS" = linux],[
    AC_MSG_CHECKING([for an Android system])
    AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
        [[#ifndef __ANDROID__
         # error Not Android
         #endif
        ]],[[;]])
    ],[
      HAVE_ANDROID="1"
      AC_MSG_RESULT([yes])
    ],[
      AC_MSG_RESULT([no])
    ])
])
AM_CONDITIONAL(HAVE_ANDROID, test "${HAVE_ANDROID}" = "1")


dnl
dnl  Check for the contrib directory
dnl
AC_ARG_WITH(contrib,
  [AS_HELP_STRING([--with-contrib[=DIR]],
    [search for 3rd party libraries in DIR/include and DIR/lib])
])
AC_MSG_CHECKING([for 3rd party libraries path])
AS_IF([test -z "${with_contrib}" || test "${with_contrib}" = "yes"], [
  CONTRIB_DIR="${srcdir}/contrib/${host}"
  AS_IF([test ! -d "${CONTRIB_DIR}"], [
    echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
    CONTRIB_DIR="${srcdir}/contrib/`$CC -dumpmachine`"
    AS_IF([test ! -d "${CONTRIB_DIR}"], [
      echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
      CONTRIB_DIR="${srcdir}/extras/contrib/hosts/${host}"
      AS_IF([test ! -d "${CONTRIB_DIR}"], [
        echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
        CONTRIB_DIR="${srcdir}/extras/contrib/hosts/`$CC -dumpmachine`"
        AS_IF([test ! -d "${CONTRIB_DIR}"], [
          echo "${CONTRIB_DIR} not found" >&AS_MESSAGE_LOG_FD
          CONTRIB_DIR=""
          AC_MSG_RESULT([not found])
        ])
      ])
    ])
  ])
], [
  AS_IF([test "${with_contrib}" != "no"], [
    CONTRIB_DIR="${with_contrib}"
  ], [
    CONTRIB_DIR=""
    AC_MSG_RESULT([disabled])
  ])
])
AS_IF([test -n "${CONTRIB_DIR}"], [
  AS_IF([test -d "${CONTRIB_DIR}/lib"],[
    CONTRIB_DIR=`cd "${CONTRIB_DIR}" && pwd`
  ], [
    echo "${CONTRIB_DIR}/lib not found" >&AS_MESSAGE_LOG_FD
    CONTRIB_DIR=""
    AC_MSG_RESULT([not usable])
  ])

])
AS_IF([test -n "${CONTRIB_DIR}"], [
  AC_MSG_RESULT([${CONTRIB_DIR}])
  export PATH=${CONTRIB_DIR}/bin:$PATH
  CPPFLAGS="${CPPFLAGS} -I${CONTRIB_DIR}/include"
  CFLAGS="${CFLAGS} -I${CONTRIB_DIR}/include"
  CXXFLAGS="${CXXFLAGS} -I${CONTRIB_DIR}/include"
  OBJCFLAGS="${OBJCFLAGS} -I${CONTRIB_DIR}/include"
  AS_IF([test "$build" = "$host" -o "$PKG_CONFIG_LIBDIR"], [
    export PKG_CONFIG_PATH="${CONTRIB_DIR}/lib/pkgconfig:$PKG_CONFIG_PATH"
  ], [
    export PKG_CONFIG_LIBDIR="${CONTRIB_DIR}/lib/pkgconfig"
  ])
  LDFLAGS="${LDFLAGS} -L${CONTRIB_DIR}/lib"

  AS_IF([test "${SYS}" = "darwin"], [
    export LD_LIBRARY_PATH="${CONTRIB_DIR}/lib:$LD_LIBRARY_PATH"
    export DYLD_LIBRARY_PATH="${CONTRIB_DIR}/lib:$DYLD_LIBRARY_PATH"
  ])
], [
  AS_IF([test -n "${with_contrib}" && test "${with_contrib}" != "no"], [
    AC_MSG_ERROR([Third party libraries not found!])
  ])
])
AC_SUBST(CONTRIB_DIR)

dnl
dnl  Libtool
dnl  It's very bad, but our former custom system was worst
dnl  -- Courmisch
dnl

dnl override platform specific check for dependent libraries
dnl otherwise libtool linking of shared libraries will
dnl fail on anything other than pass_all.
AC_CACHE_VAL(lt_cv_deplibs_check_method,
    [lt_cv_deplibs_check_method=pass_all])

LT_INIT([dlopen win32-dll shared disable-static])
LT_LANG([C  ])
LT_LANG([Windows Resource])

DOLT

lt_cv_deplibs_check_method=pass_all

AS_IF([test "${enable_shared}" = "no" -a "${enable_vlc}" != "no"], [
  AC_MSG_ERROR([VLC is based on plugins. Shared libraries cannot be disabled.])
])

dnl
dnl Gettext stuff
dnl
AM_GNU_GETTEXT_VERSION([0.18.3])
AM_GNU_GETTEXT([external], [need-ngettext])

dnl
dnl Iconv stuff
dnl
AM_ICONV

dnl
dnl checks for mingw
AS_IF([test "${SYS}" = "mingw32"], [
dnl Check for broken versions of mingw-runtime compatability library
    AC_MSG_CHECKING(for broken mingw-runtime)
    AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <_mingw.h>
#if defined(__MINGW64_VERSION_MAJOR)
# if __MINGW64_VERSION_MAJOR < 3
#  error Attempting to use mingw-runtime with broken vsnprintf and direct2d support
# endif
#elif __MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION < 15
# error Attempting to use mingw-runtime with broken vsnprintf support
#endif
    ])], [
        AC_MSG_RESULT([ok])
    ], [
        AC_MSG_RESULT([present])
        AC_MSG_ERROR([LibVLC requires mingw-runtime version 3.15 or higher, or mingw-w64 version 3.0 or higher!])
    ])
    dnl force use of mingw provided c99 *printf over msvcrt
    CPPFLAGS="${CPPFLAGS} -D__USE_MINGW_ANSI_STDIO=1"

dnl Check for the need to include the mingwex lib for mingw32
    VLC_SAVE_FLAGS
    AC_CHECK_LIB(mingwex,opendir,
        AC_CHECK_LIB(mingw32,opendir,,
            [VLC_ADD_LIBS([libvlccore],[-lmingwex])])
    )
    VLC_RESTORE_FLAGS

dnl Check for fnative-struct or mms-bitfields support for mingw32
    VLC_SAVE_FLAGS
    CFLAGS="${CFLAGS} -mms-bitfields"
    CXXFLAGS="${CXXFLAGS} -mms-bitfields"
    AC_CACHE_CHECK([if \$CC accepts -mms-bitfields],
        [ac_cv_c_mms_bitfields],
        [AC_TRY_COMPILE([],,ac_cv_c_mms_bitfields=yes, ac_cv_c_mms_bitfields=no)])
    if test "${ac_cv_c_mms_bitfields}" = "no"; then
        VLC_RESTORE_FLAGS
        CFLAGS="${CFLAGS} -fnative-struct"
        CXXFLAGS="${CXXFLAGS} -fnative-struct"
        AC_CACHE_CHECK([if \$CC accepts -fnative-struct],
            [ac_cv_c_fnative_struct],
            [AC_TRY_COMPILE([],,ac_cv_c_fnative_struct=yes, ac_cv_c_fnative_struct=no)])
        "${ac_cv_c_fnative_struct}" = "no" && VLC_RESTORE_FLAGS
    fi
])

AC_ARG_ENABLE(winstore_app,
     AS_HELP_STRING([--enable-winstore-app],
                    [Build targetted for Windows Store apps (default disabled)]))

vlc_winstore_app=0
AS_IF([test "${SYS}" = "mingw32" -a "${enable_winstore_app}" = "yes"], [
    vlc_winstore_app=1
    VLC_ADD_LIBS([libvlccore], [-lole32 -lruntimeobject])
    ])
AC_DEFINE_UNQUOTED(VLC_WINSTORE_APP, ${vlc_winstore_app}, [Define to 1 if you want to build for Windows Store apps])


dnl
dnl Buggy glibc prevention. Purposedly not cached.
dnl See sourceware.org bugs 5058 and 5443.
dnl Ubuntu alone has 20 bug numbers for this...
dnl
AC_MSG_CHECKING(for buggy GNU/libc versions)
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <limits.h>
#if defined (__GLIBC__) && (__GLIBC__ == 2) \
  && (__GLIBC_MINOR__ >= 5) && (__GLIBC_MINOR__ <= 7)
# error GNU/libc with dcgettext killer bug!
#endif
])], [
  AC_MSG_RESULT([not present])
], [
  AC_MSG_RESULT([found])
  AS_IF([test "x${enable_nls}" != "xno"], [
    AC_MSG_ERROR([Buggy GNU/libc (version 2.5 - 2.7) present. VLC would crash; there is no viable
work-around for this. Check with your distribution vendor on how to update the
glibc run-time. Alternatively, build with --disable-nls.])
  ])
])

dnl Plugin compilation stuff

VLC_LIBRARY_SUFFIX

dnl Check for system libs needed
need_libc=false

dnl Check for usual libc functions
AC_CHECK_DECLS([nanosleep],,,[#include <time.h>])
AC_CHECK_FUNCS([daemon fcntl fstatvfs fork getenv getpwuid_r isatty lstat memalign mmap openat pread posix_fadvise posix_madvise setlocale stricmp strnicmp strptime uselocale])
AC_REPLACE_FUNCS([atof atoll dirfd fdopendir flockfile fsync getdelim getpid gmtime_r lldiv localtime_r nrand48 poll posix_memalign rewind setenv strcasecmp strcasestr strdup strlcpy strndup strnlen strsep strtof strtok_r strtoll swab tdestroy strverscmp])
AC_CHECK_FUNCS(fdatasync,,
  [AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])
])

dnl mingw64 implements those as static inline, not functions with C linkage
AC_LINK_IFELSE([
    AC_LANG_PROGRAM([#include <stdio.h>], [
        char *c;
        if (asprintf(&c, "%s %d", "string", 1) == -1)
            c = NULL;
    ])],[AC_DEFINE([HAVE_ASPRINTF],[1],[Define to 1 if you have asprintf function])],[AC_LIBOBJ([asprintf])])
AC_LINK_IFELSE([
    AC_LANG_PROGRAM([#include <stdio.h>
                     #include <stdarg.h>], [
        char *c;
        va_list ap;
        if (vasprintf(&c, "%s %d", ap) == -1)
            c = NULL;
    ])],[AC_DEFINE([HAVE_VASPRINTF],[1],[Define to 1 if you have asprintf function])],[AC_LIBOBJ([vasprintf])])

dnl C11 static_assert()
AC_MSG_CHECKING([for static_assert in assert.h])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <assert.h>], [
static_assert(1, "The impossible happened.");
])], [
  AC_MSG_RESULT([yes])
  AC_DEFINE([HAVE_STATIC_ASSERT], [1], [Define to 1 if <assert.h> defines static_assert.])
], [
  AC_MSG_RESULT([no])
])

# Windows CE does not have strcoll()
AC_FUNC_STRCOLL

dnl Check for non-standard system calls
case "$SYS" in
  "linux")
    AC_CHECK_FUNCS([accept4 pipe2 eventfd vmsplice sched_getaffinity])
    ;;
  "mingw32")
    AC_CHECK_FUNCS([_lock_file])
    ;;
esac

AH_BOTTOM([#include <vlc_fixups.h>])

dnl Check for struct pollfd
AC_CHECK_TYPES([struct pollfd],,,
[#include <sys/types.h>
#if HAVE_POLL
# include <poll.h>
#elif defined (_WIN32)
# include <winsock2.h>
#endif
])

dnl Checks for socket stuff
VLC_SAVE_FLAGS
SOCKET_LIBS=""
AC_SEARCH_LIBS(connect, [socket], [
  AS_IF([test "$ac_cv_search_connect" != "none required"], [
    SOCKET_LIBS="$ac_cv_search_connect"
  ])
], [
  AS_IF([test "${SYS}" = "mingw32"], [
    SOCKET_LIBS="-lws2_32"
  ])
])

AC_SEARCH_LIBS([getaddrinfo], [nsl], [
 AS_IF([test "$ac_cv_search_getaddrinfo" != "none required"], [
    SOCKET_LIBS="$ac_cv_search_getaddrinfo $SOCKET_LIBS"
  ])
],, [${SOCKET_LIBS}])

LIBS="${LIBS} ${SOCKET_LIBS}"
AC_LINK_IFELSE([
    AC_LANG_PROGRAM([#ifdef _WIN32
        # if _WIN32_WINNT < 0x600
        #  error Needs vista 
        # endif
        #include <ws2tcpip.h>
        #else
        #include <sys/socket.h>
        #include <arpa/inet.h>
        #endif], [
        char dst[[sizeof(struct in_addr)]];
        inet_pton(AF_INET, "127.0.0.1", dst);
    ])],[AC_DEFINE([HAVE_INET_PTON],[1],[Define to 1 if you have inet_pton function])],[AC_LIBOBJ([inet_pton])])
AC_CHECK_FUNCS([if_nameindex if_nametoindex])
VLC_RESTORE_FLAGS

AS_IF([test -n "$SOCKET_LIBS"], [
  VLC_ADD_LIBS([access_rtmp access_output_shout sap stream_out_standard stream_out_rtp stream_out_raop vod_rtsp oldrc netsync gnutls ts remoteosd audiobargraph_a],[${SOCKET_LIBS}])
])
AC_SUBST(SOCKET_LIBS)

dnl Check for socklen_t
AH_TEMPLATE(socklen_t, [Define to `int' if <sys/socket.h> does not define.])
AC_CACHE_CHECK([for socklen_t in sys/socket.h], dnl ` (fix VIM syntax highlight
ac_cv_type_socklen_t,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <sys/types.h>
#ifdef _WIN32
# include <winsock2.h>
# include <ws2tcpip.h>
#else
# include <sys/socket.h>
#endif]], [[socklen_t len; len = 0;]])],
ac_cv_type_socklen_t=yes,
ac_cv_type_socklen_t=no)])
AS_IF([test "$ac_cv_type_socklen_t" = no],
 [AC_DEFINE(socklen_t, int)])

dnl Check for struct sockaddr_storage
AH_TEMPLATE(sockaddr_storage, [Define to `sockaddr' if <sys/socket.h> does not define.]) dnl ` (fix VIM syntax highlight
AH_TEMPLATE(ss_family, [Define to `sa_family' if <sys/socket.h> does not define.]) dnl ` (fix VIM syntax highlight
AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_struct_sockaddr_storage,
  [AC_TRY_COMPILE(
    [#include <sys/types.h>
     #if defined( _WIN32 )
     # include <winsock2.h>
     #else
     # include <sys/socket.h>
     #endif], [struct sockaddr_storage addr;],
     ac_cv_struct_sockaddr_storage=yes,
     ac_cv_struct_sockaddr_storage=no)])
AS_IF([test "${ac_cv_struct_sockaddr_storage}" = no], [
  AC_DEFINE(sockaddr_storage, sockaddr)
  AC_DEFINE(ss_family, sa_family)
])

dnl FreeBSD has a gnugetopt library for this:
GNUGETOPT_LIBS=""
AC_CHECK_FUNC(getopt_long,, [
  AC_CHECK_LIB([gnugetopt],[getopt_long], [
    GNUGETOPT_LIBS="-lgnugetopt"
  ])
])
AC_SUBST(GNUGETOPT_LIBS)

AC_CHECK_LIB(m,cos,[
  VLC_ADD_LIBS([adjust wave ripple psychedelic gradient a52tofloat32 dtstofloat32 x264 goom noise grain scene chorus_flanger freetype swscale postproc equalizer spatializer param_eq samplerate freetype mpc qt4 compressor headphone_channel_mixer normvol audiobargraph_a audiobargraph_v mono colorthres extract ball hotkeys mosaic gaussianblur x262 x26410b hqdn3d anaglyph oldrc ncurses oldmovie glspectrum],[-lm])
  LIBM="-lm"
], [
  LIBM=""
])
AC_SUBST(LIBM)

AC_CHECK_LIB(m,lrintf, [
  AC_DEFINE(HAVE_LRINTF, 1, [Define to 1 if you have the lrintf function])
  VLC_ADD_LIBS([skins2],[-lm])
])

dnl Check for dynamic plugins
LIBDL=""
have_dynamic_objects="no"
VLC_SAVE_FLAGS
AC_SEARCH_LIBS(dlopen, [dl svld], [
  AS_IF([test "$ac_cv_search_dlopen" != "none required"], [
    LIBDL="$ac_cv_search_dlopen"
  ])
  have_dynamic_objects="yes"
])
VLC_RESTORE_FLAGS

# Windows
AS_IF([test "${SYS}" = "mingw32"], [
  LIBDL=""
  have_dynamic_objects="yes" #assume we can use shared objects
])

AS_IF([test "${enable_shared}" = "no"], [
  have_dynamic_objects=no
])
AM_CONDITIONAL(HAVE_DYNAMIC_PLUGINS, [test "${have_dynamic_objects}" != "no"])

AC_SUBST(LIBDL)

dnl Check for thread library
LIBPTHREAD=""
AS_IF([test "${SYS}" != "mingw32"], [
  VLC_SAVE_FLAGS
  LIBS=""
  AC_SEARCH_LIBS(pthread_rwlock_init, pthread pthreads c_r, [
    AS_IF([test "$ac_cv_search_pthread_rwlock_init" != "none required"], [
      LIBPTHREAD="$ac_cv_search_pthread_rwlock_init"
    ])
  ])
  VLC_RESTORE_FLAGS

  AC_CHECK_LIB(rt, clock_nanosleep, [
    VLC_ADD_LIBS([libvlccore],[-lrt])
  ], [
    AC_CHECK_FUNC(nanosleep,,[
      AC_CHECK_LIB(rt,nanosleep, [
        VLC_ADD_LIBS([libvlccore],[-lrt])
      ], [
        AC_CHECK_LIB(posix4,nanosleep, [
          VLC_ADD_LIBS([libvlccore],[-lposix4])
        ])
      ])
    ])
    dnl HP/UX port
    AC_CHECK_LIB(rt,sem_init, [VLC_ADD_LIBS([libvlccore],[-lrt])])
  ])
])
AC_SUBST(LIBPTHREAD)

dnl Check for headers
AC_CHECK_HEADERS([search.h])
AC_CHECK_HEADERS(getopt.h locale.h xlocale.h)
AC_CHECK_HEADERS([sys/time.h sys/ioctl.h])
AC_CHECK_HEADERS([arpa/inet.h netinet/udplite.h sys/eventfd.h])
AC_CHECK_HEADERS([net/if.h], [], [],
  [
    #include <sys/types.h>
    #include <sys/socket.h>
  ])
AC_CHECK_HEADERS([sys/mount.h], [], [],
  [
    #include <sys/param.h>
  ])

if test "${SYS}" != "mingw32"; then
  AC_CHECK_HEADERS(machine/param.h sys/shm.h)
  AC_CHECK_HEADERS([linux/version.h linux/dccp.h scsi/scsi.h linux/magic.h])
  AC_CHECK_HEADERS(syslog.h mntent.h)
fi # end "${SYS}" != "mingw32"

dnl LP64 and LLP64 architectures had better define ssize_t by themselves...
AH_TEMPLATE(ssize_t, [Define to `int' if <stddef.h> does not define.]) dnl ` (fix VIM syntax highlight
AC_CHECK_TYPE(ssize_t,, [
  AC_DEFINE(ssize_t, int)
])

dnl Check for threads library
if test "${SYS}" != "mingw32"; then
  AC_CHECK_HEADERS(pthread.h)
fi # end "${SYS}" != "mingw32"

dnl It seems that autoconf detects pkg-config only during the first
dnl PKG_CHECK_MODULES from configure.ac - which makes sense. But in our case,
dnl it is nested within a conditional block, so it was not working right.
dnl Make PKG_CONFIG_PATH precious so that it appears in the help and get saved
AC_ARG_VAR(PKG_CONFIG_PATH,
       [Paths where to find .pc not at the default location])
PKG_PROG_PKG_CONFIG()

dnl On some OS we need static linking
AS_IF([test -n "${PKG_CONFIG}" ],[
    AS_IF([test "${SYS}" = "mingw32" -o "${SYS}" = "darwin" -o "${SYS}" = "os2" ],[
        PKG_CONFIG="${PKG_CONFIG} --static"
    ])
])


dnl
dnl Check for zlib.h and -lz along with system -lminizip if available
dnl
AC_CHECK_HEADERS(zlib.h, [ have_zlib=yes ], [ have_zlib=no ])
AM_CONDITIONAL(HAVE_ZLIB, [ test "${have_zlib}" = "yes" ])
if test "${have_zlib}" = "yes"
then
  VLC_ADD_LIBS([skins2 sap unzip zip],[-lz])
  PKG_CHECK_MODULES([MINIZIP], [minizip] , [ have_minizip=yes ], [
    AC_CHECK_HEADERS([unzip.h], [
      have_minizip=yes
      MINIZIP_LIBS="-lminizip -lz"
    ], [
      VLC_ADD_CPPFLAGS([skins2], [-I\\\$(top_srcdir)/modules/access/zip/unzip])
      VLC_ADD_LIBS([skins2], [\\\$(top_builddir)/modules/libunzip.la])
      have_minizip=no
    ])
  ])
  VLC_ADD_CPPFLAGS([skins2],[$MINIZIP_CFLAGS])
  VLC_ADD_LIBS([skins2],[$MINIZIP_LIBS])
fi
AM_CONDITIONAL(HAVE_MINIZIP, [ test "${have_minizip}" = "yes" ])


dnl
dnl Domain name i18n support via GNU libidn
dnl
PKG_CHECK_MODULES([IDN], [libidn], [
  have_libidn="yes"
  AC_DEFINE([HAVE_IDN], 1, [Define to 1 if you have GNU libidn.])
], [
  have_libidn="no"
])


dnl Check for dbus
AC_ARG_ENABLE(dbus,
  [AS_HELP_STRING([--enable-dbus],
    [compile D-Bus message bus support (default enabled)])])
have_dbus="no"
AS_IF([test "${enable_dbus}" != "no"], [
  PKG_CHECK_MODULES(DBUS, [dbus-1 >= 1.6.0], [
    have_dbus="yes"
  ], [
    AS_IF([test -n "${enable_dbus}"], [
      AC_MSG_ERROR([${DBUS_PKG_ERRORS}.])
    ], [
      AC_MSG_WARN([${DBUS_PKG_ERRORS}.])
    ])
  ])
])
AM_CONDITIONAL([HAVE_DBUS], [test "${have_dbus}" = "yes"])

dnl Check for ntohl, etc.
VLC_SAVE_FLAGS
CFLAGS="${CFLAGS} -Wall -Werror"
AC_CACHE_CHECK([for ntohl in sys/param.h],
    [ac_cv_c_ntohl_sys_param_h],
    [     AC_TRY_COMPILE([#include <sys/param.h>],
        [int meuh; ntohl(meuh);],
        ac_cv_c_ntohl_sys_param_h=yes, ac_cv_c_ntohl_sys_param_h=no)])
if test "${ac_cv_c_ntohl_sys_param_h}" != "no"; then
    AC_DEFINE(NTOHL_IN_SYS_PARAM_H, 1, Define if <sys/param.h> defines ntohl.)
fi
VLC_RESTORE_FLAGS

EXTEND_HELP_STRING([Optimization options:])
dnl
dnl  Compiler warnings
dnl

RDC_PROG_CC_WFLAGS([all extra sign-compare undef pointer-arith bad-function-cast write-strings missing-prototypes volatile-register-var error-implicit-function-declaration])
RDC_PROG_CC_FLAGS([-pipe])
AC_LANG_PUSH([C  ])
RDC_PROG_CXX_WFLAGS([all extra sign-compare undef pointer-arith volatile-register-var])
AC_LANG_POP([C  ])

dnl
dnl  Debugging mode
dnl
AC_ARG_ENABLE(debug,
  [AS_HELP_STRING([--enable-debug],
    [build with run-time assertions (default disabled)])],,
  [enable_debug="no"])
AH_TEMPLATE(NDEBUG,
            [Define to 1 if debug code should NOT be compiled])
AS_IF([test "${enable_debug}" != "no"], [
  AC_CHECK_HEADERS([valgrind/valgrind.h])
], [
  AC_DEFINE(NDEBUG)
])

dnl
dnl  Profiling
dnl
AC_ARG_ENABLE(gprof,
  [AS_HELP_STRING([--enable-gprof],[profile with gprof (default disabled)])],,
  [enable_gprof="no"])
AS_IF([test "${enable_gprof}" != "no"], [
  CFLAGS="${CFLAGS} -pg"
  CXXFLAGS="${CXXFLAGS} -pg"
  OBJCFLAGS="${OBJCFLAGS} -pg"
  LDFLAGS="${LDFLAGS} -pg"
])

AC_ARG_ENABLE(cprof,
  [AS_HELP_STRING([--enable-cprof],[profile with cprof (default disabled)])],,
  [enable_cprof="no"])
AS_IF([test "${enable_gprof}" != "no"], [
  CFLAGS="${CFLAGS} -finstrument-functions"
  CXXFLAGS="${CXXFLAGS} -finstrument-functions"
  OBJCFLAGS="${OBJCFLAGS} -finstrument-functions"
  LDFLAGS="${LDFLAGS} -finstrument-functions"
])

dnl
dnl  Test coverage
dnl
AC_ARG_ENABLE(coverage,
  [AS_HELP_STRING([--enable-coverage],
    [build for test coverage (default disabled)])],,
  [enable_coverage="no"])
AS_IF([test "${enable_coverage}" != "no"], [
  CFLAGS="-fprofile-arcs -ftest-coverage ${CFLAGS}"
  CXXFLAGS="-fprofile-arcs -ftest-coverage ${CXXFLAGS}"
  LDFLAGS="-lgcov ${LDFLAGS}"
])

AS_IF([test "${SYS}" != "mingw32" -a "${SYS}" != "os2"], [
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -fvisibility=hidden"
  CXXFLAGS="${CXXFLAGS} -fvisibility=hidden"
  OBJCFLAGS="${OBJCFLAGS} -fvisibility=hidden"
  AC_CACHE_CHECK([if $CC accepts -fvisibility=hidden],
                 [ac_cv_c_visibility_hidden], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_visibility_hidden=yes
    ], [
      ac_cv_c_visibility_hidden=no
    ])
  ])
  AS_IF([test "${ac_cv_c_visibility_hidden}" = "no"], [VLC_RESTORE_FLAGS])
])


dnl
dnl  Enable/disable optimizations
dnl
AC_ARG_ENABLE(optimizations,
  [AS_HELP_STRING([--disable-optimizations],
    [disable compiler optimizations (default enabled)])],,
  [enable_optimizations="yes"])

dnl Check for various optimization flags
AS_IF([test "${enable_optimizations}" != "no"], [

  dnl -O4 and -O3 only in production builds
  AS_IF([test "{enable_debug}" = "no"], [
    VLC_SAVE_FLAGS
    CFLAGS="${CFLAGS} -O4"
    CXXFLAGS="${CXXFLAGS} -O4"
    OBJCFLAGS="${OBJCFLAGS} -O4"
    AC_CACHE_CHECK([if $CC accepts -O4], [ac_cv_c_o4], [
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
        ac_cv_c_o4=yes
      ], [
        ac_cv_c_o4=no
      ])
    ])
    AS_IF([test "${ac_cv_c_o4}" = "no"], [
      VLC_RESTORE_FLAGS
      CFLAGS="${CFLAGS} -O3"
      CXXFLAGS="${CXXFLAGS} -O3"
      OBJCFLAGS="${OBJCFLAGS} -O3"
      AC_CACHE_CHECK([if $CC accepts -O3],  [ac_cv_c_o3], [
        AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
          ac_cv_c_o3=yes
        ], [
          ac_cv_c_o3=no
        ])
      ])
      AS_IF([test "${ac_cv_c_o3}" = "no"], [VLC_RESTORE_FLAGS])
    ])
  ])

  dnl Check for -ffast-math
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -ffast-math"
  CXXFLAGS="${CXXFLAGS} -ffast-math"
  OBJCFLAGS="${OBJCFLAGS} -ffast-math"
  AC_CACHE_CHECK([if $CC accepts -ffast-math], [ac_cv_c_fast_math], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_fast_math=yes
    ], [
      ac_cv_c_fast_math=no
    ])
  ])
  AS_IF([test "${ac_cv_c_fast_math}" = "no"], [VLC_RESTORE_FLAGS])
  AH_BOTTOM([
#ifndef __FAST_MATH__
# pragma STDC FENV_ACCESS OFF
# pragma STDC FP_CONTRACT ON
#endif
])

  dnl Check for -funroll-loops
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -funroll-loops"
  CXXFLAGS="${CXXFLAGS} -funroll-loops"
  OBJCFLAGS="${OBJCFLAGS} -funroll-loops"
  AC_CACHE_CHECK([if $CC accepts -funroll-loops], [ac_cv_c_unroll_loops], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_unroll_loops=yes
    ], [
      ac_cv_c_unroll_loops=no
    ])
  ])
  AS_IF([test "${ac_cv_c_unroll_loops}" = "no"], [VLC_RESTORE_FLAGS])

  AS_IF([test "$enable_debug" = "no"], [
    dnl Check for -fomit-frame-pointer
    VLC_SAVE_FLAGS
    CFLAGS="${CFLAGS} -fomit-frame-pointer"
    CXXFLAGS="${CXXFLAGS} -fomit-frame-pointer"
    OBJCFLAGS="${OBJCFLAGS} -fomit-frame-pointer"
    AC_CACHE_CHECK([if $CC accepts -fomit-frame-pointer],
      [ac_cv_c_omit_frame_pointer], [
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
        ac_cv_c_omit_frame_pointer=yes
      ], [
        ac_cv_c_omit_frame_pointer=no
      ])
    ])
    AS_IF([test "${ac_cv_c_omit_frame_pointer}" = "no"], [VLC_RESTORE_FLAGS])
  ])
])

VLC_SAVE_FLAGS
LDFLAGS="${LDFLAGS} -Wl,-Bsymbolic"
AC_CACHE_CHECK([if linker supports -Bsymbolic], [ac_cv_ld_bsymbolic], [
  AC_TRY_LINK([],, [
    ac_cv_ld_bsymbolic="-Wl,-Bsymbolic"
  ], [
    ac_cv_ld_bsymbolic=""
  ])
])
VLC_RESTORE_FLAGS
SYMBOLIC_LDFLAGS="${ac_cv_ld_bsymbolic}"
AC_SUBST(SYMBOLIC_LDFLAGS)

dnl Checks for __attribute__(aligned()) directive
VLC_SAVE_FLAGS
CFLAGS="${CFLAGS} -Werror"
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
    [ac_cv_c_attribute_aligned],
    [ac_cv_c_attribute_aligned=0
    for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
        AC_TRY_COMPILE([],
        [static char c __attribute__ ((aligned(${ac_cv_c_attr_align_try}))) = 0; return c;],
        [ac_cv_c_attribute_aligned="${ac_cv_c_attr_align_try}"])
    done])
VLC_RESTORE_FLAGS
if test "${ac_cv_c_attribute_aligned}" != "0"; then
    AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
        [${ac_cv_c_attribute_aligned}],[Maximum supported data alignment])
fi

dnl Check for __attribute__((packed))
AC_CACHE_CHECK([for __attribute__((packed))],
  [ac_cv_c_attribute_packed],
  [ac_cv_c_attribute_packed=no
   AC_TRY_COMPILE(, [struct __attribute__((__packed__)) foo { int a; } b; (void)b;],
                    [ac_cv_c_attribute_packed=yes])])
if test "${ac_cv_c_attribute_packed}" != "no"; then
  AC_DEFINE(HAVE_ATTRIBUTE_PACKED, 1, Support for __attribute__((packed)) for structs)
fi

dnl
dnl  Check the CPU
dnl
case "${host_cpu}" in
  "")
    ARCH=unknown
    ;;
  *)
    ARCH="${host_cpu}"
    ;;
esac

dnl Check for backtrace() support
AC_CHECK_HEADERS(execinfo.h)
AC_CHECK_FUNCS(backtrace)

dnl
dnl  default modules
dnl
ALIASES="${ALIASES} cvlc rvlc"

dnl
dnl  Accelerated modules
dnl

dnl  Check for fully working MMX intrinsics
dnl  We need support for -mmmx, we need <mmintrin.h>, and we also need a
dnl  working compiler (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23963)
AC_ARG_ENABLE(mmx,
  [AS_HELP_STRING([--disable-mmx],
    [disable MMX optimizations (default auto)])],,[
  case "${host_cpu}" in
    i?86|x86_64)
      enable_mmx="yes"
      ;;
    *)
      enable_mmx="no"
      ;;
  esac
])
have_mmx="no"
have_mmxext="no"
AS_IF([test "${enable_mmx}" != "no"], [
  ARCH="${ARCH} mmx"
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -mmmx"
  AC_CACHE_CHECK([if $CC groks MMX intrinsics], [ac_cv_c_mmx_intrinsics], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <mmintrin.h>
#include <stdint.h>
uint64_t frobzor;]], [
[__m64 a, b, c;
a = b = c = (__m64)frobzor;
a = _mm_slli_pi16(a, 3);
a = _mm_adds_pi16(a, b);
c = _mm_srli_pi16(c, 8);
c = _mm_slli_pi16(c, 3);
b = _mm_adds_pi16(b, c);
a = _mm_unpacklo_pi8(a, b);
frobzor = (uint64_t)a;]])], [
      ac_cv_c_mmx_intrinsics=yes
    ], [
      ac_cv_c_mmx_intrinsics=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_c_mmx_intrinsics}" != "no"], [
    AC_DEFINE(HAVE_MMX_INTRINSICS, 1, [Define to 1 if MMX intrinsics are available.])
  ])

  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -mmmx"
  AC_CACHE_CHECK([if $CC groks MMX inline assembly], [ac_cv_mmx_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("packuswb %%mm1,%%mm2"::"r"(p):"mm1", "mm2");
]])
    ], [
      ac_cv_mmx_inline=yes
    ], [
      ac_cv_mmx_inline=no
    ])
  ])
  AS_IF([test "${ac_cv_mmx_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_MMX, 1, [Define to 1 inline MMX assembly is available.])
    have_mmx="yes"
  ])

  AC_CACHE_CHECK([if $CC groks MMX EXT inline assembly],
                 [ac_cv_mmxext_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("maskmovq %%mm1,%%mm2"::"r"(p):"mm1", "mm2");
]])
    ], [
      ac_cv_mmxext_inline=yes
    ], [
      ac_cv_mmxext_inline=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_mmxext_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_MMXEXT, 1, [Define to 1 if MMX EXT inline assembly is available.])
    have_mmxext="yes"
  ])
])
AM_CONDITIONAL([HAVE_MMX], [test "${have_mmx}" = "yes"])
AM_CONDITIONAL([HAVE_MMXEXT], [test "${have_mmxext}" = "yes"])

dnl  Check for fully workin SSE2 intrinsics
dnl  We need support for -mmmx, we need <emmintrin.h>, and we also need a
dnl  working compiler (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23963)
AC_ARG_ENABLE(sse,
  [AS_HELP_STRING([--disable-sse],
    [disable SSE (1-4) optimizations (default auto)])],, [
  case "${host_cpu}" in
    i?86|x86_64)
      enable_sse=yes
      ;;
    *)
      enable_sse=no
      ;;
  esac
])
have_sse2="no"
AS_IF([test "${enable_sse}" != "no"], [
  ARCH="${ARCH} sse sse2"

  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -msse2"
  AC_CACHE_CHECK([if $CC groks SSE2 intrinsics], [ac_cv_c_sse2_intrinsics], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <emmintrin.h>
#include <stdint.h>
uint64_t frobzor;]], [
[__m128i a, b, c;
a = b = c = _mm_set1_epi64((__m64)frobzor);
a = _mm_slli_epi16(a, 3);
a = _mm_adds_epi16(a, b);
c = _mm_srli_epi16(c, 8);
c = _mm_slli_epi16(c, 3);
b = _mm_adds_epi16(b, c);
a = _mm_unpacklo_epi8(a, b);
frobzor = (uint64_t)_mm_movepi64_pi64(a);]])], [
      ac_cv_c_sse2_intrinsics=yes
    ], [
      ac_cv_c_sse2_intrinsics=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_c_sse2_intrinsics}" != "no"], [
    AC_DEFINE(HAVE_SSE2_INTRINSICS, 1, [Define to 1 if SSE2 intrinsics are available.])
  ])

  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -msse"
  AC_CACHE_CHECK([if $CC groks SSE inline assembly], [ac_cv_sse_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("xorps %%xmm1,%%xmm2"::"r"(p):"xmm1", "xmm2");
]])
    ], [
      ac_cv_sse_inline=yes
    ], [
      ac_cv_sse_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse_inline}" != "no" -a "${SYS}" != "solaris"], [
    AC_DEFINE(CAN_COMPILE_SSE, 1, [Define to 1 if SSE inline assembly is available.])
  ])

  AC_CACHE_CHECK([if $CC groks SSE2 inline assembly], [ac_cv_sse2_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("punpckhqdq %%xmm1,%%xmm2"::"r"(p):"xmm1", "xmm2");
]])
    ], [
      ac_cv_sse2_inline=yes
    ], [
      ac_cv_sse2_inline=no
    ])
  ])
  AS_IF([test "${ac_cv_sse2_inline}" != "no" -a "${SYS}" != "solaris"], [
    AC_DEFINE(CAN_COMPILE_SSE2, 1, [Define to 1 if SSE2 inline assembly is available.])
    have_sse2="yes"
  ])

  # SSE3
  AC_CACHE_CHECK([if $CC groks SSE3 inline assembly], [ac_cv_sse3_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("movsldup %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse3_inline=yes
    ], [
      ac_cv_sse3_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse3_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE3, 1, [Define to 1 if SSE3 inline assembly is available.]) ])
  # SSSE3
  AC_CACHE_CHECK([if $CC groks SSSE3 inline assembly], [ac_cv_ssse3_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pabsw %%xmm0,%%xmm0"::"r"(p):"xmm0");
]])
    ], [
      ac_cv_ssse3_inline=yes
    ], [
      ac_cv_ssse3_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_ssse3_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSSE3, 1, [Define to 1 if SSSE3 inline assembly is available.]) ])

  # SSE4.1
  AC_CACHE_CHECK([if $CC groks SSE4.1 inline assembly],
                 [ac_cv_sse4_1_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pmaxsb %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse4_1_inline=yes
    ], [
      ac_cv_sse4_1_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse4_1_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE4_1, 1, [Define to 1 if SSE4_1 inline assembly is available.]) ])

  # SSE4.2
  AC_CACHE_CHECK([if $CC groks SSE4.2 inline assembly],
                 [ac_cv_sse4_2_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pcmpgtq %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse4_2_inline=yes
    ], [
      ac_cv_sse4_2_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse4_2_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE4_2, 1, [Define to 1 if SSE4_2 inline assembly is available.]) ])

  # SSE4A
  AC_CACHE_CHECK([if $CC groks SSE4A inline assembly], [ac_cv_sse4a_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("insertq %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse4a_inline=yes
    ], [
      ac_cv_sse4a_inline=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_sse4a_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE4A, 1, [Define to 1 if SSE4A inline assembly is available.]) ])
])
AM_CONDITIONAL([HAVE_SSE2], [test "$have_sse2" = "yes"])

VLC_SAVE_FLAGS
CFLAGS="${CFLAGS} -mmmx"
have_3dnow="no"
AC_CACHE_CHECK([if $CC groks 3D Now! inline assembly], [ac_cv_3dnow_inline], [
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pfadd %%mm1,%%mm2"::"r"(p):"mm1", "mm2");
]])
  ], [
    ac_cv_3dnow_inline=yes
  ], [
    ac_cv_3dnow_inline=no
  ])
])
VLC_RESTORE_FLAGS
AS_IF([test "${ac_cv_3dnow_inline}" != "no"], [
  AC_DEFINE(CAN_COMPILE_3DNOW, 1,
            [Define to 1 if 3D Now! inline assembly is available.])
  have_3dnow="yes"
])
AM_CONDITIONAL([HAVE_3DNOW], [test "$have_3dnow" = "yes"])


AC_ARG_ENABLE(neon,
  [AS_HELP_STRING([--disable-neon],
    [disable NEON optimizations (default auto)])],, [
  AS_IF([test "${host_cpu}" = "arm"], [enable_neon="yes"] ,[enable_neon="no"])
])
AS_IF([test "${enable_neon}" != "no"], [
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -mfpu=neon -mhard-float"
  AC_CACHE_CHECK([if $CCAS groks ARM NEON assembly], [ac_cv_arm_neon], [
    AC_COMPILE_IFELSE([
      AC_LANG_PROGRAM(,[[
asm volatile("vqmovun.s64 d0, q1":::"d0");
]])
    ], [
      ac_cv_arm_neon="yes"
    ], [
      ac_cv_arm_neon="no"
    ])
  ])
  VLC_RESTORE_FLAGS
])
AM_CONDITIONAL(HAVE_NEON, [test "${ac_cv_arm_neon}" = "yes"])


AC_ARG_ENABLE(altivec,
  [AS_HELP_STRING([--disable-altivec],
    [disable AltiVec optimizations (default auto)])],, [
  AS_CASE("${host_cpu}", [powerpc*],
        [enable_altivec=yes], [enable_altivec=no])
])
have_altivec="no"
ALTIVEC_CFLAGS=""
AS_IF([test "${enable_altivec}" = "yes"], [
  ARCH="${ARCH} altivec";
  VLC_SAVE_FLAGS
  AC_CACHE_CHECK([if $CC groks AltiVec inline assembly],
    [ac_cv_altivec_inline],
    [AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
         ac_cv_altivec_inline="yes",
         [CFLAGS="${CFLAGS} -Wa,-m7400"
          AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
            [ac_cv_altivec_inline="-Wa,-m7400"],
            ac_cv_altivec_inline=no)
         ])])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_altivec_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_ALTIVEC, 1,
              [Define to 1 if AltiVec inline assembly is available.])
    AS_IF([test "${ac_cv_altivec_inline}" != "yes"], [
      ALTIVEC_CFLAGS="${ac_cv_altivec_inline}"
      VLC_ADD_CFLAGS([libvlccore],[${ac_cv_altivec_inline}])
    ])
    have_altivec="yes"
  ])

  VLC_SAVE_FLAGS
  AC_CACHE_CHECK([if \$CC groks AltiVec C extensions],
  [ac_cv_c_altivec], [
    CFLAGS="${CFLAGS} -maltivec"
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <altivec.h>]], [
[vec_ld(0, (unsigned char *)0);]])], [
      ac_cv_c_altivec="-maltivec"
    ], [
      ac_cv_c_altivec="no"
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_c_altivec}" != "no"], [
    CPPFLAGS="${CPPFLAGS} ${ac_cv_c_altivec}"
    AC_DEFINE(CAN_COMPILE_C_ALTIVEC, 1, [Define to 1 if C AltiVec extensions are available.])
    VLC_ADD_CFLAGS([libvlccore],[${ac_cv_c_altivec}])
    ALTIVEC_CFLAGS="$ALTIVEC_FLAGS ${ac_cv_c_altivec} ${ac_cv_c_altivec_abi}"
    VLC_ADD_CFLAGS([deinterlace],[${ac_cv_c_altivec} ${ac_cv_c_altivec_abi}])
    have_altivec="yes"
  ])
  AC_CHECK_HEADERS(altivec.h)

  VLC_SAVE_FLAGS
  LDFLAGS="${LDFLAGS} -Wl,-framework,vecLib"
  AC_CACHE_CHECK([if linker needs -framework vecLib],
    [ac_cv_ld_altivec],
    [AC_TRY_LINK([],,ac_cv_ld_altivec=yes,ac_cv_ld_altivec=no)])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_ld_altivec}" != "no"], [
    VLC_ADD_LIBS([libvlccore],[-Wl,-framework,vecLib])
  ])
])
AC_SUBST(ALTIVEC_CFLAGS)
AM_CONDITIONAL([HAVE_ALTIVEC], [test "$have_altivec" = "yes"])

dnl
dnl  Memory usage
dnl
AC_ARG_ENABLE(optimize-memory,
  [AS_HELP_STRING([--enable-optimize-memory],
    [optimize memory usage over performance])])
if test "${enable_optimize_memory}" = "yes"; then
  AC_DEFINE(OPTIMIZE_MEMORY, 1, Define if you want to optimize memory usage over performance)
fi

dnl
dnl Allow running as root (useful for people running on embedded platforms)
dnl
AC_ARG_ENABLE(run-as-root,
  [AS_HELP_STRING([--enable-run-as-root],
    [allow running VLC as root (default disabled)])])
AS_IF([test "${enable_run_as_root}" = "yes"],[
    AC_DEFINE(ALLOW_RUN_AS_ROOT, 1,
              [Define to 1 to allow running VLC as root (uid 0).])
])

dnl
dnl Stream output
dnl
AC_ARG_ENABLE(sout,
  [AS_HELP_STRING([--disable-sout],
    [disable streaming output (default enabled)])])
AS_IF([test "${enable_sout}" != "no"], [
  AC_DEFINE(ENABLE_SOUT, 1, [Define to 1 for stream output support.])
])
AM_CONDITIONAL(ENABLE_SOUT, [test "${enable_sout}" != "no"])

dnl Lua modules
AC_ARG_ENABLE(lua,
  [AS_HELP_STRING([--disable-lua],
    [disable LUA scripting support (default enabled)])])
if test "${enable_lua}" != "no"
then
  PKG_CHECK_MODULES(LUA, lua5.2,
    [ have_lua=yes ],
    [
    AC_MSG_WARN([${LUA_PKG_ERRORS}, trying lua 5.1 instead])

    PKG_CHECK_MODULES(LUA, lua5.1,
      [ have_lua=yes ],
      [
      AC_MSG_WARN([${LUA_PKG_ERRORS}, trying lua >= 5.1 instead])
      PKG_CHECK_MODULES(LUA, lua >= 5.1,
        [ have_lua=yes ],
        [
          AC_MSG_WARN([${LUA_PKG_ERRORS}, trying manual detection instead])
          have_lua=yes
          AC_CHECK_HEADERS([lua.h lauxlib.h lualib.h],
            [],
            [ have_lua=no ] )
          AC_CHECK_LIB(  lua5.2 , luaL_newstate,
            [LUA_LIBS="-llua5.2"],
          AC_CHECK_LIB( lua5.1 , luaL_newstate,
            [LUA_LIBS="-llua5.1"],
            AC_CHECK_LIB( lua51 , luaL_newstate,
              [LUA_LIBS="-llua51"],
              AC_CHECK_LIB( lua , luaL_newstate,
                [LUA_LIBS="-llua"],
                [ have_lua=no
                ], [-lm])
            )))
        ])
      ])
    ])
  if test "x${have_lua}" != "xyes" ;  then
      AC_MSG_ERROR([Could not find lua. Lua is needed for some interfaces (rc, telnet, http) as well as many other custom scripts. Use --disable-lua to ignore this error.])
  fi
  AC_ARG_VAR([LUAC], [LUA byte compiler])
  AC_PATH_PROGS(LUAC,[${LUAC} luac], [false])
  AS_IF([test "${LUAC}" = "false"], [
    AC_MSG_ERROR([Could not find the LUA byte compiler.])
  ])
  AS_IF([test -d "${CONTRIB_DIR}" -a -f "${CONTRIB_DIR}"/lib/liblua.a -a `echo|${LUAC} -o - -|od -j 8 -N 2 -t x2|head -n 1|cut -d' ' -f2` != 0404], [
    AC_MSG_ERROR([You need 32-bits luac when using using lua from contrib.])
  ])
fi
AM_CONDITIONAL(BUILD_LUA, [test "${have_lua}" = "yes"])


dnl
dnl HTTP daemon
dnl
AC_ARG_ENABLE(httpd,
  [AS_HELP_STRING([--disable-httpd],
    [disable the built-in HTTP server (default enabled)])])
if test "${enable_httpd}" != "no"
then
  AC_DEFINE(ENABLE_HTTPD, 1, Define if you want the HTTP daemon support)
fi
AM_CONDITIONAL(BUILD_HTTPD, [test "${enable_httpd}" != "no"])


dnl
dnl VideoLAN manager
dnl
AC_ARG_ENABLE(vlm,
  [AS_HELP_STRING([--disable-vlm],
    [disable the stream manager (default enabled)])],,
  [enable_vlm="${enable_sout}"])
AS_IF([test "${enable_vlm}" != "no"], [
  AS_IF([test "${enable_sout}" = "no"], [
    AC_MSG_ERROR([VLM requires the stream output. Do not use --disable-sout.])
  ])
  AC_DEFINE(ENABLE_VLM, 1, [Define if you want the VideoLAN manager support])
])
AM_CONDITIONAL([ENABLE_VLM], [test "${enable_vlm}" != "no"])


dnl
dnl  Input plugins
dnl

EXTEND_HELP_STRING([Input plugins:])

dnl
dnl  live555 input
dnl
AC_ARG_ENABLE(live555,
  [AS_HELP_STRING([--enable-live555],
    [enable RTSP input through live555 (default enabled)])])

AS_IF([test "${enable_live555}" != "no" -a -n "${CXX}"], [
  PKG_CHECK_MODULES(LIVE555, live555, [
    VLC_ADD_PLUGIN([live555])
    VLC_ADD_CXXFLAGS([live555], [$LIVE555_CFLAGS])
    VLC_ADD_LIBS([live555],[$LIVE555_LIBS])
  ], [
    AC_MSG_WARN([${LIVE555_PKG_ERRORS}.])

    AC_LANG_PUSH(C  )
    VLC_SAVE_FLAGS

    dnl detect include paths
    AS_IF([test -f "${CONTRIB_DIR}/include/UsageEnvironment.hh"], [
      CPPFLAGS_live555="-I${CONTRIB_DIR}/include/liveMedia -I${CONTRIB_DIR}/include/groupsock -I${CONTRIB_DIR}/include/BasicUsageEnvironment -I${CONTRIB_DIR}/include/UsageEnvironment"
    ], [
      AS_IF([test "${SYS}" != "os2"], [
        LIVE555_PREFIX=${LIVE555_PREFIX-"/usr"}
        CPPFLAGS_live555="-I${LIVE555_PREFIX}/include/liveMedia -I${LIVE555_PREFIX}/include/groupsock -I${LIVE555_PREFIX}/include/BasicUsageEnvironment -I${LIVE555_PREFIX}/include/UsageEnvironment"
      ], [
        LIVE555_PREFIX=${LIVE555_PREFIX-"/usr/lib/live"}
        CPPFLAGS_live555="-I${LIVE555_PREFIX}/liveMedia/include -I${LIVE555_PREFIX}/groupsock/include -I${LIVE555_PREFIX}/BasicUsageEnvironment/include -I${LIVE555_PREFIX}/UsageEnvironment/include"
        LDFLAGS_live555="-L${LIVE555_PREFIX}/liveMedia -L${LIVE555_PREFIX}/groupsock -L${LIVE555_PREFIX}/BasicUsageEnvironment -L${LIVE555_PREFIX}/UsageEnvironment"
      ])
    ])

    dnl CPP Flags
    AS_IF([test "${SYS}" = "solaris"], [
      CPPFLAGS_live555="${CPPFLAGS_live555} -DSOLARIS"
    ])
    CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_live555}"
    LDFLAGS="${LDFLAGS} ${LDFLAGS_live555}"

    dnl version check
    AC_CACHE_CHECK([for live555 version 1324598400 or later], [ac_cv_live555], [
      AC_PREPROC_IFELSE([AC_LANG_PROGRAM([
[#include <liveMedia_version.hh>
#if !defined (LIVEMEDIA_LIBRARY_VERSION_INT) || (LIVEMEDIA_LIBRARY_VERSION_INT < 1324598400)
# error BOOM
#endif]])
      ], [
        ac_cv_live555="yes"
      ], [
        ac_cv_live555="no"
      ])
    ])

    AS_IF([test "$ac_cv_live555" = "no"], [
      AC_MSG_WARN([live555 is missing or its installed version is too old:
Version 2011.12.23 or later is required to proceed.
You can get an updated one from http://www.live555.com/liveMedia .])
      AS_IF([test -n "${enable_live555}"], [
        AC_MSG_ERROR([Update live555 or pass --disable-live555 to disable RTSP input support.])
      ])
    ], [
      other_libs="-lgroupsock -lBasicUsageEnvironment -lUsageEnvironment"
      other_libs_pic="-lgroupsock_pic -lBasicUsageEnvironment_pic -lUsageEnvironment_pic"
      AS_IF([test "${SYS}" = "mingw32"], [
        # add ws2_32 for closesocket, select, recv
        other_libs="$other_libs -lws2_32"
      ])

      dnl We need to check for pic because live555 don't provide shared libs
      dnl and we want to build a plugins so we need -fPIC on some arch.
      VLC_ADD_CXXFLAGS([live555], [${CPPFLAGS_live555}])
      VLC_ADD_LDFLAGS([live555], [${LDFLAGS_live555}])
      AC_CHECK_LIB(liveMedia_pic, main, [
        VLC_ADD_PLUGIN([live555])
        VLC_ADD_LIBS([live555], [-lliveMedia_pic ${other_libs_pic}])
      ],[
        AC_CHECK_LIB(liveMedia, main, [
          VLC_ADD_PLUGIN([live555])
          VLC_ADD_LIBS([live555], [-lliveMedia ${other_libs}])
        ],[],[${other_libs}])
      ],[${other_libs_pic}])
    ])
    VLC_RESTORE_FLAGS
    AC_LANG_POP(C  )
  ])
])

dnl
dnl IIDC and DV FireWire input modules
dnl
PKG_ENABLE_MODULES_VLC([DC1394], [], [libdc1394-2 >= 2.1.0], [IIDC FireWire input module], [auto])
PKG_ENABLE_MODULES_VLC([DV1394], [], [libraw1394 >= 2.0.1 libavc1394 >= 0.5.3], [DV FireWire input module], [auto])

dnl
dnl - linsys modules: access module check for libzvbi
dnl
AC_ARG_ENABLE(linsys,
  [AS_HELP_STRING([--enable-linsys],
    [Linux Linear Systems Ltd. SDI and HD-SDI input cards (default enabled)])])
AS_IF([test "$SYS" = "linux" -a "${enable_linsys}" != "no"], [
  VLC_ADD_PLUGIN([linsys_hdsdi])
  PKG_CHECK_MODULES(LINSYS_SDI, [zvbi-0.2 >= 0.2.28], [
    VLC_ADD_PLUGIN([linsys_sdi])
  ], [
    AC_MSG_WARN([${LINSYS_SDI_PKG_ERRORS}.])
  ])
])

dnl
dnl dvdread module: check for libdvdread
dnl
PKG_ENABLE_MODULES_VLC([DVDREAD], [], [dvdread], [dvdread input module], [auto])

dnl
dnl libdvdnav plugin
dnl
AC_ARG_ENABLE(dvdnav,
  [AS_HELP_STRING([--disable-dvdnav],
    [disable DVD navigation with libdvdnav (default auto)])])
AS_IF([test "${enable_dvdnav}" != "no"], [
  PKG_CHECK_MODULES(DVDNAV, dvdnav, [
    VLC_ADD_PLUGIN([dvdnav])
    AC_CHECK_LIB(dvdnav, dvdnav_get_video_resolution,
      AC_DEFINE(HAVE_DVDNAV_GET_VIDEO_RESOLUTION, 1, [Define if you have dvdnav_get_video_resolution.]),
        [], [${LIBS_dvdnav}])
    AC_CHECK_LIB(dvdnav, dvdnav_describe_title_chapters,
      AC_DEFINE(HAVE_DVDNAV_DESCRIBE_TITLE_CHAPTERS, 1, [Define if you have dvdnav_describe_title_chapters.]),
        [], [${LIBS_dvdnav}])],
      [AC_MSG_WARN([${DVDNAV_PKG_ERRORS}.])])
])

dnl
dnl  Blu-ray Disc Support with libbluray
dnl
PKG_ENABLE_MODULES_VLC([BLURAY], [libbluray], [libbluray >= 0.2.1], (libbluray for Blu-ray disc support ) )

dnl
dnl  OpenCV wrapper and example filters
dnl
PKG_ENABLE_MODULES_VLC([OPENCV], [opencv_example opencv_wrapper], [opencv > 2.0], (OpenCV (computer vision) filter), [auto])


dnl
dnl  libsmbclient plugin
dnl
PKG_ENABLE_MODULES_VLC([SMBCLIENT], [smb], [smbclient], (SMB/CIFS support), [auto])
AS_IF([test "${SYS}" = "mingw32"], [ VLC_ADD_PLUGIN([access_smb]) ])


dnl
dnl sftp access support
dnl
PKG_ENABLE_MODULES_VLC([SFTP], [access_sftp], [libssh2], (support SFTP file transfer via libssh2), [auto])

dnl
dnl  Video4Linux 2
dnl
AC_ARG_ENABLE(v4l2, [AS_HELP_STRING([--disable-v4l2],
  [disable Video4Linux version 2 (default auto)])])
have_v4l2="no"
AS_IF([test "$enable_v4l2" != "no"], [
  AC_CHECK_HEADERS([linux/videodev2.h sys/videoio.h], [
    have_v4l2="yes"
  ])
])
AM_CONDITIONAL(HAVE_V4L2, [test "${have_v4l2}" != "no"])

dnl
dnl special access module for Blackmagic SDI cards
dnl
AC_ARG_ENABLE(decklink,
  [AS_HELP_STRING([--disable-decklink],
    [disable Blackmagic DeckLink SDI input (default auto)])])
AC_ARG_WITH(decklink_sdk,
  [AS_HELP_STRING[--with-decklink-sdk=DIR],
    [                        location of Blackmagic DeckLink SDI SDK])])
have_decklink=no
if test "${enable_decklink}" != "no"
then
  if test "${with_decklink_sdk}" != "no" -a -n "${with_decklink_sdk}"
  then
    VLC_ADD_CPPFLAGS([decklink decklinkoutput],[-I${with_decklink_sdk}/include])
  fi
  VLC_SAVE_FLAGS
  CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_decklink}"
  AC_LANG_PUSH(C  )
  AC_CHECK_HEADERS(DeckLinkAPIDispatch.cpp, [
      have_decklink=yes
  ], [
      AC_MSG_WARN(Blackmagic DeckLink SDI include files not found, decklink disabled)
  ])
  AC_LANG_POP(C  )
  VLC_RESTORE_FLAGS
fi
AM_CONDITIONAL(HAVE_DECKLINK, [ test "${have_decklink}" != "no" ])


dnl
dnl  gnomeVFS access module
dnl
PKG_ENABLE_MODULES_VLC([GNOMEVFS], [gnomevfs], [gnome-vfs-2.0], [GnomeVFS access module], [auto])

dnl
dnl  VCDX modules
dnl
PKG_ENABLE_MODULES_VLC([VCDX], [vcdx], [libcdio >= 0.78.2 libiso9660 >= 0.72 libvcdinfo >= 0.7.22], [navigate VCD with libvcdinfo], [no])

dnl
dnl  Built-in CD-DA and VCD module
dnl
AC_ARG_ENABLE(vcd,
  [AS_HELP_STRING([--disable-vcd],
    [disable built-in VCD and CD-DA support (default enabled)])])

AC_ARG_ENABLE(libcddb,
  [AS_HELP_STRING([--disable-libcddb],
    [disable CDDB for Audio CD (default enabled)])])

if test "${enable_vcd}" != "no"
then
  AC_MSG_CHECKING(for cdrom_msf0 in linux/cdrom.h)
  AC_EGREP_HEADER(cdrom_msf0,linux/cdrom.h,[
    AC_MSG_RESULT(yes)
    VLC_ADD_PLUGIN([vcd cdda])
  ],[
    AC_MSG_RESULT(no)
  ])

  AC_MSG_CHECKING(for scsireq in sys/scsiio.h)
  AC_EGREP_HEADER(scsireq,sys/scsiio.h,[
    AC_MSG_RESULT(yes)
    VLC_ADD_PLUGIN([vcd cdda])
    AC_DEFINE(HAVE_SCSIREQ_IN_SYS_SCSIIO_H, 1, For NetBSD VCD support)
  ],[
    AC_MSG_RESULT(no)
  ])

  AC_MSG_CHECKING(for ioc_toc_header in sys/cdio.h)
  AC_EGREP_HEADER(ioc_toc_header ,sys/cdio.h,[
    AC_MSG_RESULT(yes)
    VLC_ADD_PLUGIN([vcd cdda])
    AC_DEFINE(HAVE_IOC_TOC_HEADER_IN_SYS_CDIO_H, 1, For FreeBSD VCD support)
  ],[
    AC_MSG_RESULT(no)
  ])

  if test "${SYS}" = "bsdi" -o "${SYS}" = "mingw32" -o "${SYS}" = "os2" -o "${SYS}" = "darwin"
  then
    VLC_ADD_PLUGIN([vcd cdda])
  fi

  if test "$enable_libcddb" != "no"; then
    PKG_CHECK_MODULES(LIBCDDB, [libcddb >= 0.9.5], [
      HAVE_LIBCDDB=yes
      AC_DEFINE(HAVE_LIBCDDB, 1, [Define this if you have libcddb installed])
      VLC_ADD_LIBS([cdda],[$LIBCDDB_LIBS])
      VLC_ADD_CFLAGS([cdda],[$LIBCDDB_CFLAGS])
      ],:
      [AC_MSG_WARN([${LIBCDDB_PKG_ERRORS}: CDDB access disabled.])
      HAVE_LIBCDDB=no])
  fi
fi

dnl
dnl Linux DVB
dnl
AC_CACHE_CHECK([for Linux DVB version 5.1], [ac_cv_linux_dvb_5_1], [
  AC_PREPROC_IFELSE([AC_LANG_PROGRAM([
[#include <linux/dvb/version.h>
#if (DVB_API_VERSION < 5)
# error Linux DVB API v3.2 and older are not supported.
#endif
#if (DVB_API_VERSION == 5 && DVB_API_VERSION_MINOR < 1)
# error Linux DVB API v5.0 is unsupported. Please update.
#endif
]])], [
  ac_cv_linux_dvb_5_1=yes
], [
  ac_cv_linux_dvb_5_1=no
])])
AM_CONDITIONAL([HAVE_LINUX_DVB], [test "$ac_cv_linux_dvb_5_1" = "yes"])

dnl
dnl  Screen capture module
dnl
AC_ARG_ENABLE(screen,
  [AS_HELP_STRING([--enable-screen],
    [disable screen capture (default enabled)])])
if test "${enable_screen}" != "no"; then
  if test "${SYS}" = "darwin"; then
    AC_CHECK_HEADERS(ApplicationServices/ApplicationServices.h, [
      VLC_ADD_PLUGIN([screen])
    ])
  fi
fi
AM_CONDITIONAL(HAVE_MAC_SCREEN, [test "${SYS}" = "darwin" -a "x${enable_screen}" != "xno"])

dnl
dnl  VNC/RFB access module
dnl
PKG_ENABLE_MODULES_VLC([VNC], [vnc], [libvncclient >= 0.9.9], (VNC/rfb client support), [auto])

dnl  RDP/Remote Desktop access module
dnl
PKG_ENABLE_MODULES_VLC([FREERDP], [rdp], [freerdp >= 1.0.1], (RDP/Remote Desktop client support) )

dnl
dnl  Real RTSP plugin
dnl
AC_ARG_ENABLE(realrtsp,
  [  --enable-realrtsp       Real RTSP module (default disabled)])
if test "${enable_realrtsp}" = "yes"; then
  VLC_ADD_PLUGIN([access_realrtsp])
fi

dnl
dnl MacOS eyeTV
AC_ARG_ENABLE(macosx-eyetv,
  [  --enable-macosx-eyetv   Mac OS X EyeTV (TNT Tuner) module (default enabled on Mac OS X)])
if test "x${enable_macosx_eyetv}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_eyetv}" = "yes")
then
  VLC_ADD_PLUGIN([access_eyetv])
fi

dnl
dnl QTKit
AC_ARG_ENABLE(macosx-qtkit,
  [  --enable-macosx-qtkit Mac OS X qtcapture (video) and qtsound (audio) module (default enabled on Mac OS X)])
if test "x${enable_macosx_qtkit}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_qtkit}" = "yes")
then
  VLC_ADD_PLUGIN([qtcapture])
  VLC_ADD_PLUGIN([qtsound])
fi
AM_CONDITIONAL(HAVE_QTKIT, [test "${SYS}" = "darwin" -a "x${enable_macosx_qtkit}" != "xno"])

dnl
dnl AVFoundation
AC_SUBST(have_avfoundation, ["no"])
AC_ARG_ENABLE(macosx-avfoundation,
  [  --enable-macosx-avfoundation Mac OS X avcapture (video) module (default enabled on Mac OS X)])
if test "x${enable_macosx_avfoundation}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_avfoundation}" = "yes")
then
  SAVED_LIBS="${LIBS}"
  LIBS="-framework AVFoundation"
  AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [])],[have_avfoundation=yes],[have_avfoundation=no])
  LIBS="${SAVED_LIBS}"
  if test "${have_avfoundation}" != "no"
  then
    VLC_ADD_PLUGIN([avcapture])
  fi
fi
AM_CONDITIONAL(HAVE_AVFOUNDATION, [test "${have_avfoundation}" != "no"])

dnl
dnl  Demux plugins
dnl

EXTEND_HELP_STRING([Mux/Demux plugins:])

dnl
dnl  libdvbpsi check for ts mux/demux
dnl
have_dvbpsi="no"
PKG_WITH_MODULES([DVBPSI], [libdvbpsi], [have_dvbpsi="yes"])
AM_CONDITIONAL(HAVE_DVBPSI, [test "${have_dvbpsi}" = "yes"])


dnl
dnl  GME demux plugin
dnl
AC_ARG_ENABLE(gme,
  [AS_HELP_STRING([--enable-gme],
    [use Game Music Emu (default auto)])])
AS_IF([test "${enable_gme}" != "no"], [
  AC_CHECK_HEADER([gme/gme.h], [
    VLC_ADD_LIBS([gme], [-lgme])
    VLC_ADD_PLUGIN([gme])
  ], [
    AS_IF([test "x${enable_gme}" != "x"], [
      AC_MSG_ERROR([GME cannot be found. Please install the development files.])
    ])
  ])
])


dnl
dnl  SIDPlay plugin
dnl
AC_ARG_ENABLE(sid,
    [AS_HELP_STRING([--enable-sid],[C64 sid demux support (default auto)])])
AS_IF([test "${enable_sid}" != "no"], [
    PKG_CHECK_MODULES(SID, [libsidplay2], [
        AC_LANG_PUSH(C  )
        oldCPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $SID_CFLAGS"
        AC_CHECK_HEADER([sidplay/builders/resid.h], [
            VLC_ADD_PLUGIN([sid])
            VLC_ADD_CFLAGS([sid], [$SID_CFLAGS])
            VLC_ADD_LIBS([sid], [$SID_LIBS] [-lresid-builder])
        ], [
            AS_IF([test -n "${enable_sid}"],
                [AC_MSG_ERROR([${SID_PKG_ERRORS} (required for sid).])],
                [AC_MSG_WARN([${SID_PKG_ERRORS} (required for sid).])]
                )
        ])
        CPPFLAGS="$oldCPPFLAGS"
        AC_LANG_POP(C  )
    ], [
        AS_IF([test "x${enable_sid}" = "xyes"],
            [AC_MSG_ERROR([${SID_PKG_ERRORS} (required for sid).])],
            [AC_MSG_WARN([${SID_PKG_ERRORS} (required for sid).])]
            )
    ])
])


dnl
dnl  ogg demux plugin
dnl
PKG_ENABLE_MODULES_VLC([OGG], [], [ogg >= 1.0], [Ogg demux support], [auto])
if test "${enable_sout}" != "no"; then
    PKG_ENABLE_MODULES_VLC([MUX_OGG], [], [ogg >= 1.0], [Ogg mux support], [auto])
dnl Check for libshout
    PKG_ENABLE_MODULES_VLC([SHOUT], [access_output_shout], [shout >= 2.1], [libshout output plugin], [auto])
fi

dnl
dnl  matroska demux plugin
dnl
AC_ARG_ENABLE(mkv,
  [AS_HELP_STRING([--disable-mkv],
    [do not use libmatroska (default auto)])])
if test "${enable_mkv}" != "no" -a "${CXX}" != ""; then
  AC_LANG_PUSH(C  )
  AC_CHECK_HEADERS(ebml/EbmlVersion.h, [
    AC_MSG_CHECKING(for libebml version >= 1.0.0)
    AC_EGREP_CPP(yes,
      [#include <ebml/EbmlVersion.h>
       #ifdef LIBEBML_VERSION
       #if LIBEBML_VERSION >= 0x010000
       yes
       #endif
       #endif],
      [AC_MSG_RESULT([yes])
        AC_CHECK_HEADERS(matroska/KaxVersion.h, [
          AC_MSG_CHECKING(for libmatroska version >= 1.0.0)
          AC_EGREP_CPP(yes,
            [#include <matroska/KaxVersion.h>
             #ifdef LIBMATROSKA_VERSION
             #if LIBMATROSKA_VERSION >= 0x010000
             yes
             #endif
             #endif],
            [AC_MSG_RESULT([yes])
              AC_CHECK_HEADERS(matroska/KaxAttachments.h)
              AC_CHECK_LIB(ebml_pic, main, [
                VLC_ADD_PLUGIN([mkv])
                VLC_ADD_LIBS([mkv],[-lmatroska -lebml_pic])
              ],[
                AC_CHECK_LIB(ebml, main, [
                  VLC_ADD_PLUGIN([mkv])
                  VLC_ADD_LIBS([mkv],[-lmatroska -lebml])
                ])
              ])
            ], [
              AC_MSG_RESULT([no])
              AC_MSG_ERROR([Your libmatroska is too old: you may get a more recent one from http://dl.matroska.org/downloads/libmatroska/. Alternatively you can use --disable-mkv to disable the matroska plugin.])
          ])
        ])
      ],
      [AC_MSG_RESULT([no])
        AC_MSG_ERROR([Your libebml is too old: you may get a more recent one from http://dl.matroska.org/downloads/libebml/. Alternatively you can use --disable-mkv to disable the matroska plugin.])
    ])
  ])
  AC_LANG_POP(C  )
fi

dnl
dnl  modplug demux plugin
dnl
AC_ARG_ENABLE(mod,
  [AS_HELP_STRING([--disable-mod],
    [do not use libmodplug (default auto)])])
if test "${enable_mod}" != "no" ; then
    PKG_CHECK_MODULES(LIBMODPLUG, [libmodplug >= 0.8.4 libmodplug != 0.8.8], [
          VLC_ADD_PLUGIN([mod])
          VLC_ADD_CXXFLAGS([mod],[$LIBMODPLUG_CFLAGS])
          VLC_ADD_LIBS([mod],[$LIBMODPLUG_LIBS])
    ],[
       AS_IF([test -n "${enable_mod}"],
         [AC_MSG_ERROR([${LIBMODPLUG_PKG_ERRORS}.])],
         [AC_MSG_WARN([${LIBMODPLUG_PKG_ERRORS}.])])
    ])
fi

dnl
dnl  mpc demux plugin
dnl
AC_ARG_ENABLE(mpc,
  [AS_HELP_STRING([--disable-mpc], [do not use libmpcdec (default auto)])])
if test "${enable_mpc}" != "no"
then
  AC_CHECK_HEADERS([mpc/mpcdec.h], [
    VLC_ADD_PLUGIN([mpc])
    VLC_ADD_LIBS([mpc],[-lmpcdec])],
    [AC_CHECK_HEADERS([mpcdec/mpcdec.h], [
    VLC_ADD_PLUGIN([mpc])
    VLC_ADD_LIBS([mpc],[-lmpcdec])])])
fi

dnl
dnl  Codec plugins
dnl

EXTEND_HELP_STRING([Codec plugins:])

dnl
dnl wmafixed plugin
dnl
AC_ARG_ENABLE(wma-fixed,
  [  --enable-wma-fixed      libwma-fixed module (default disabled)])
if test "${enable_wma_fixed}" = "yes"
then
  VLC_ADD_PLUGIN([wma_fixed])
fi

dnl
dnl shine encoder plugin
dnl
PKG_ENABLE_MODULES_VLC([SHINE], [], [shine >= 3.0.0], [MPEG Audio Layer 3 encoder], [auto], [], [], [])


dnl
dnl openmax il codec plugin
dnl
AC_ARG_ENABLE(omxil,
  [  --enable-omxil          openmax il codec module (default disabled)])
if test "${enable_omxil}" = "yes"
then
  VLC_ADD_PLUGIN([omxil])
fi

dnl
dnl openmax il vout plugin
dnl
AC_ARG_ENABLE(omxil-vout,
  [  --enable-omxil-vout     openmax il video output module (default disabled)])
if test "${enable_omxil_vout}" = "yes"
then
  VLC_ADD_PLUGIN([omxil_vout])
fi

dnl
dnl raspberry pi openmax il configuration
dnl
AC_ARG_ENABLE(rpi-omxil,
  [  --enable-rpi-omxil     openmax il configured for raspberry pi (default disabled)])
if test "${enable_rpi_omxil}" = "yes"
then
  VLC_ADD_PLUGIN([omxil omxil_vout])
  VLC_ADD_CFLAGS([omxil omxil_vout],[-DRPI_OMX])
fi

dnl
dnl CrystalHD codec plugin
dnl
AC_ARG_ENABLE(crystalhd,
  [  --enable-crystalhd      crystalhd codec plugin (default auto)])
if test "${enable_crystalhd}" != "no"; then
    AC_CHECK_HEADER(libcrystalhd/libcrystalhd_if.h, [
      VLC_ADD_PLUGIN([crystalhd])
      VLC_ADD_LIBS([crystalhd], [-lcrystalhd])
    ],[
      if test "${SYS}" = "mingw32" ; then
        AC_CHECK_HEADERS(libcrystalhd/bc_dts_defs.h, [
          VLC_ADD_PLUGIN([crystalhd])
          AC_CHECK_HEADERS(libcrystalhd/bc_drv_if.h, [
            VLC_ADD_LIBS([crystalhd], [-lbcmDIL])
            ])
        ],[
          AS_IF([test x"${enable_crystalhd}" = "xyes"],
                [AC_MSG_ERROR("Could not find CrystalHD development headers")],
                [AC_MSG_WARN("Could not find CrystalHD development headers")])
        ],[#define __LINUX_USER__
               #include <libcrystalhd/bc_dts_types.h>
        ])
      fi
    ],[
       #include <libcrystalhd/bc_dts_types.h>
      ])
fi

dnl
dnl  mad plugin
dnl
AC_ARG_ENABLE(mad,
  [  --enable-mad            libmad module (default enabled)])
if test "${enable_mad}" != "no"
then
  AC_ARG_WITH(mad,
    [  --with-mad=PATH         path to libmad],[],[])
  if test "${with_mad}" != "no" -a -n "${with_mad}"
  then
    VLC_ADD_CPPFLAGS([mpgatofixed32],[-I${with_mad}/include])
    VLC_ADD_LIBS([mpgatofixed32],[-L${with_mad}/lib])
  fi

  AC_ARG_WITH(mad-tree,
    [  --with-mad-tree=PATH    mad tree for static linking],[],[])
  if test "${with_mad_tree}" != "no" -a -n "${with_mad_tree}"
  then
    real_mad_tree="`cd ${with_mad_tree} 2>/dev/null && pwd`"
    if test -z "${real_mad_tree}"
    then
      dnl  The given directory can't be found
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([${with_mad_tree} directory does not exist])
    fi
    dnl  Use a custom libmad
    AC_MSG_CHECKING(for mad.h in ${real_mad_tree})
    if test -f ${real_mad_tree}/mad.h
    then
      AC_MSG_RESULT(yes)
      VLC_ADD_CPPFLAGS([mpgatofixed32],[-I${real_mad_tree}])
      VLC_ADD_LIBS([mpgatofixed32],[-L${real_mad_tree}/.libs])
      VLC_SAVE_FLAGS
      LDFLAGS="${LDFLAGS} ${LIBS_mpgatofixed32}"
      AC_CHECK_LIB(mad, mad_bit_init, [
        VLC_ADD_PLUGIN([mpgatofixed32])
        VLC_ADD_LIBS([mpgatofixed32],[-lmad])
        ],[ AC_MSG_ERROR([the specified tree has not been compiled ])
      ],[])
      VLC_RESTORE_FLAGS
    else
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([the specified tree does not have mad.h])
    fi
  else
    VLC_SAVE_FLAGS
    CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_mpgatofixed32}"
    LDFLAGS="${LDFLAGS} ${LIBS_mpgatofixed32}"
    AC_CHECK_HEADERS(mad.h, ,
      [ AC_MSG_ERROR([Could not find libmad on your system: you may get it from http://www.underbit.com/products/mad/. Alternatively you can use --disable-mad to disable the mad plugin.]) ])
    AC_CHECK_LIB(mad, mad_bit_init, [
      VLC_ADD_PLUGIN([mpgatofixed32])
      VLC_ADD_LIBS([mpgatofixed32],[-lmad])],
      [ AC_MSG_ERROR([Cannot find libmad library...]) ])
    VLC_RESTORE_FLAGS
  fi
fi


AC_ARG_ENABLE(merge-ffmpeg,
[  --enable-merge-ffmpeg   merge FFmpeg-based plugins (default disabled)],, [
  enable_merge_ffmpeg="no"
])
AM_CONDITIONAL([MERGE_FFMPEG], [test "$enable_merge_ffmpeg" != "no"])

dnl
dnl  avcodec decoder/encoder plugin
dnl
AC_ARG_ENABLE(avcodec,
[  --enable-avcodec        libavcodec codec (default enabled)])
AS_IF([test "${enable_avcodec}" != "no"], [
  PKG_CHECK_MODULES(AVCODEC,[libavcodec >= 53.34.0 libavutil >= 51.22.0], [
    dnl PKG_CHECK_EXISTS([libavcodec < 56],, [
    dnl   AC_MSG_ERROR([libavcodec versions 56 and later are not supported yet.])
    dnl ])
    VLC_SAVE_FLAGS
    CPPFLAGS="${CPPFLAGS} ${AVCODEC_CFLAGS}"
    CFLAGS="${CFLAGS} ${AVCODEC_CFLAGS}"
    AC_CHECK_HEADERS(libavcodec/avcodec.h)
    AC_CHECK_HEADERS(libavutil/avutil.h)
    VLC_RESTORE_FLAGS
    have_avcodec="yes"
  ],[
    AC_MSG_ERROR([${AVCODEC_PKG_ERRORS}. Pass --disable-avcodec to ignore this error.])
  ])
], [
  have_avcodec="no"
])
AM_CONDITIONAL([HAVE_AVCODEC], [test "${have_avcodec}" != "no"])

dnl
dnl libva needs avcodec
dnl
AC_ARG_ENABLE(libva,
  [  --enable-libva          VAAPI GPU decoding support (libVA) (default auto)])

AS_IF([test "${enable_libva}" = "yes" -a "${have_avcodec}" != "yes" ], [
  AC_MSG_ERROR([--enable-libva and --disable-avcodec options are mutually exclusive. Use --enable-avcodec.])
])
have_avcodec_vaapi="no"
AS_IF([test "${enable_libva}" != "no" -a "${have_avcodec}" = "yes"], [
  PKG_CHECK_MODULES(LIBVA, [libva libva-x11], [
    VLC_SAVE_FLAGS
    CPPFLAGS="${CPPFLAGS} ${AVCODEC_CFLAGS}"
    CFLAGS="${CFLAGS} ${AVCODEC_CFLAGS}"
    AC_CHECK_HEADERS(libavcodec/vaapi.h, [
      AC_MSG_NOTICE([VAAPI acceleration activated])
      have_avcodec_vaapi="yes"
    ],[
      AS_IF([test -n "${enable_libva}"], [
        AC_MSG_ERROR([libva is present but libavcodec/vaapi.h is missing])
      ], [
        AC_MSG_WARN([libva is present but libavcodec/vaapi.h is missing ])
      ])
    ])
    VLC_RESTORE_FLAGS
  ],[
    AS_IF([test -n "${enable_libva}"], [
      AC_MSG_ERROR([${LIBVA_PKG_ERRORS}.])
    ], [
      AC_MSG_WARN([${LIBVA_PKG_ERRORS}.])
    ])
  ])
])
AM_CONDITIONAL([HAVE_AVCODEC_VAAPI], [test "${have_avcodec_vaapi}" = "yes"])

dnl
dnl dxva2 needs avcodec
dnl
AC_ARG_ENABLE(dxva2,
  [  --enable-dxva2          DxVA2 GPU decoding support (default auto)])

have_avcodec_dxva2="no"
AS_IF([test "${enable_dxva2}" != "no"], [
  if test "${SYS}" = "mingw32"; then
  AS_IF([test "x${have_avcodec}" = "xyes"], [
    AC_CHECK_HEADERS(dxva2api.h,
      [
        AC_CHECK_HEADERS(libavcodec/dxva2.h, [
           AC_MSG_NOTICE([DxVA2 acceleration activated])
           have_avcodec_dxva2="yes"
        ],[
    AS_IF([test "${enable_dxva2}" = "yes"],
          [AC_MSG_ERROR([dxva2 is present but libavcodec/dxva2.h is missing])],
              [AC_MSG_WARN([dxva2 is present but libavcodec/dxva2.h is missing ])])
        ], [#undef _WIN32_WINNT
            /* DXVA2 is only available in Vista and above */
            #define _WIN32_WINNT 0x600])
      ],[
    AS_IF([test "${enable_dxva2}" = "yes"],
              [AC_MSG_ERROR([Could not find required dxva2api.h])],
              [AC_MSG_WARN([dxva2api.h not found])])
      ])
  ],[
    AS_IF([test "x${enable_dxva2}" != "x"], [
      AC_MSG_ERROR([--enable-dxva2 and --disable-avcodec options are mutually exclusive.])
    ])
  ])
  fi
])
AM_CONDITIONAL([HAVE_AVCODEC_DXVA2], [test "${have_avcodec_dxva2}" = "yes"])

dnl
dnl vda needs avcodec
dnl
AC_ARG_ENABLE(vda,
  [  --enable-vda          VDA  support (default auto)])

have_avcodec_vda="no"
AS_IF([test "${enable_vda}" != "no"], [
  if test "${SYS}" = "darwin"; then
  AS_IF([test "x${have_avcodec}" = "xyes"], [
    AC_CHECK_HEADERS(VideoDecodeAcceleration/VDADecoder.h,
      [
        AC_CHECK_HEADERS(libavcodec/vda.h, [
           have_avcodec_vda="yes"
        ],[
	AS_IF([test "${enable_vda}" = "yes"],
	      [AC_MSG_ERROR([vda is present but libavcodec/vda.h is missing])],
              [AC_MSG_WARN([vda is present but libavcodec/vda.h is missing ])])
        ])
  ],[
	AS_IF([test "${enable_vda}" = "yes"],
              [AC_MSG_ERROR([Could not find required VideoDecodeAcceleration/VDADecoder.h])],
              [AC_MSG_WARN([VideoDecodeAcceleration/VDADecoder.h not found])])
      ])
  ],[
    AS_IF([test "x${enable_vda}" != "x"], [
      AC_MSG_ERROR([--enable-vda and --disable-avcodec options are mutually exclusive.])
    ])
 ])
  fi
])
AM_CONDITIONAL([HAVE_AVCODEC_VDA], [test "${have_avcodec_vda}" = "yes"])

dnl
dnl  avformat demuxer/muxer plugin
dnl

AC_ARG_ENABLE(avformat,
[  --enable-avformat       libavformat containers (default enabled)],, [
  enable_avformat="${have_avcodec}"
])
have_avformat="no"
AS_IF([test "${enable_avformat}" != "no"], [
  PKG_CHECK_MODULES(AVFORMAT,[libavformat >= 53.21.0 libavcodec libavutil], [
      have_avformat="yes"
      VLC_SAVE_FLAGS
      CPPFLAGS="${CPPFLAGS} ${AVFORMAT_CFLAGS}"
      CFLAGS="${CFLAGS} ${AVFORMAT_CFLAGS}"
      AC_CHECK_HEADERS(libavformat/avformat.h libavformat/avio.h)
      AC_CHECK_HEADERS(libavcodec/avcodec.h)
      AC_CHECK_HEADERS(libavutil/avutil.h)
      AS_IF([test "$enable_merge_ffmpeg" = "no"], [
        have_avformat="no"
      ])
      VLC_RESTORE_FLAGS
    ],[
      AC_MSG_ERROR([${AVFORMAT_PKG_ERRORS}. Pass --disable-avformat to ignore this error.])
  ])
])
AM_CONDITIONAL([HAVE_AVFORMAT], [test "${enable_avformat}" != "no"])

dnl
dnl  swscale image scaling and conversion plugin
dnl

AC_ARG_ENABLE(swscale,
  AS_HELP_STRING([--enable-swscale],[libswscale image scaling and conversion
          (default enabled)]))
if test "${enable_swscale}" != "no"
then
  PKG_CHECK_MODULES(SWSCALE,[libswscale],
    [
      VLC_SAVE_FLAGS
      CPPFLAGS="${CPPFLAGS} ${SWSCALE_CFLAGS}"
      CFLAGS="${CFLAGS} ${SWSCALE_CFLAGS}"
      AC_CHECK_HEADERS(libswscale/swscale.h)
      VLC_ADD_PLUGIN([swscale])
      VLC_ADD_LIBS([swscale],[$SWSCALE_LIBS])
      VLC_ADD_CFLAGS([swscale],[$SWSCALE_CFLAGS])
      AS_IF([test -n "${ac_cv_ld_bsymbolic}"], [
        VLC_ADD_LIBS([swscale],[${ac_cv_ld_bsymbolic}])
      ])
      VLC_RESTORE_FLAGS
    ],[
      AC_MSG_ERROR([${SWSCALE_PKG_ERRORS}. Pass --disable-swscale to ignore this error. Proper software scaling and some video chroma conversion will be missing.])
  ])
fi

dnl
dnl  postproc plugin
dnl

AC_ARG_ENABLE(postproc,
[  --enable-postproc       libpostproc image post-processing (default auto)])
if test "${enable_postproc}" != "no"
then
  PKG_CHECK_MODULES(POSTPROC,[libpostproc libavutil],
    [
      VLC_SAVE_FLAGS
      CPPFLAGS="${CPPFLAGS} ${POSTPROC_CFLAGS}"
      CFLAGS="${CFLAGS} ${POSTPROC_CFLAGS}"
      AC_CHECK_HEADERS(postproc/postprocess.h)
      VLC_ADD_PLUGIN([postproc])
      VLC_ADD_LIBS([postproc],[$POSTPROC_LIBS $AVUTIL_LIBS])
      VLC_ADD_CFLAGS([postproc],[$POSTPROC_CFLAGS $AVUTIL_CFLAGS])
      VLC_RESTORE_FLAGS
    ],[
      AC_MSG_WARN([${POSTPROC_PKG_ERRORS}.])
  ])
fi

dnl
dnl  faad decoder plugin
dnl
AC_ARG_ENABLE(faad,
[  --enable-faad           faad codec (default auto)])
if test "${enable_faad}" != "no"; then
  AC_ARG_WITH(faad-tree,  [  --with-faad-tree=PATH   faad tree for static linking])
  if test -n "${with_faad_tree}"; then
    AC_MSG_CHECKING(for libfaad.a in ${with_faad_tree})
    real_faad_tree="`cd ${with_faad_tree} 2>/dev/null && pwd`"
    if test -z "${real_faad_tree}"; then
      dnl  The given directory can't be found
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([cannot cd to ${with_faad_tree}])
    fi
    if test -f "${real_faad_tree}/libfaad/.libs/libfaad.a"; then
      dnl  Use the custom faad
      AC_MSG_RESULT(${real_faad_tree}/libfaad/.libs/libfaad.a)
      VLC_ADD_PLUGIN([faad])
      VLC_ADD_LIBS([faad],[${real_faad_tree}/libfaad/.libs/libfaad.a])
      VLC_ADD_CPPFLAGS([faad],[-I${real_faad_tree}/include])
    else
      dnl  The given libfaad wasn't built
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([cannot find ${real_faad_tree}/libfaad/.libs/libfaad.a, make sure you compiled libfaad in ${with_faad_tree}])
    fi
  else
    VLC_SAVE_FLAGS
    CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_faad}"
    LDFLAGS="${LDFLAGS} ${LIBS_faad}"
    AC_CHECK_HEADERS(faad.h,
      [ AC_CHECK_LIB(faad, faacDecOpen, [
          VLC_ADD_PLUGIN([faad])
          VLC_ADD_LIBS([faad],[-lfaad]) ], [
            AC_CHECK_LIB(faad, NeAACDecOpen, [
              VLC_ADD_PLUGIN([faad])
              VLC_ADD_LIBS([faad],[-lfaad]) ], [
                AS_IF([test "${enable_faad}" = "yes"],
                [ AC_MSG_ERROR([Cannot find libfaad library...]) ],
                [ AC_MSG_WARN([Cannot find libfaad library...]) ]) ]) ])
      ] , [ AS_IF([test "${enable_faad}" = "yes"],
        [ AC_MSG_ERROR([Cannot find development headers for libfaad...]) ],
        [ AC_MSG_WARN([Cannot find development headers for libfaad...]) ]) ])
    VLC_RESTORE_FLAGS
  fi
fi

dnl
dnl libvpx decoder plugin
dnl
AC_ARG_ENABLE(vpx,
    AS_HELP_STRING([--enable-vpx],[libvpx VP8/VP9 decoder (default auto)]))
AS_IF([test "${enable_vpx}" != "no"],[
    PKG_CHECK_MODULES([VPX], [vpx] , [
        VLC_ADD_PLUGIN([vpx])
        VLC_ADD_CPPFLAGS([vpx], [${VPX_CFLAGS}])
        VLC_ADD_LIBS([vpx], [${VPX_LIBS}])
        AC_CHECK_LIB([vpx],[vpx_codec_vp9_dx], [
            VLC_ADD_CPPFLAGS([vpx], [-DENABLE_VP9_DECODER])
        ], [], [${VPX_LIBS}])
    ], [
    AS_IF([test "${enable_vpx}" = "yes"],[
        AC_MSG_ERROR([libvpx was not found])
    ])])
])

dnl
dnl twolame encoder plugin
dnl
PKG_ENABLE_MODULES_VLC([TWOLAME], [], [twolame], [MPEG Audio Layer 2 encoder], [auto], [], [], [ -DLIBTWOLAME_STATIC])

dnl
dnl fdk-aac encoder plugin
dnl
PKG_ENABLE_MODULES_VLC([FDKAAC], [], [fdk-aac], [FDK-AAC encoder], [disabled])

dnl
dnl  QuickTime plugin
dnl
AC_ARG_ENABLE(quicktime,
  [  --enable-quicktime      QuickTime module (deprecated)])
if test "${enable_quicktime}" = "yes"; then
  if test "${SYS}" = "mingw32"; then
    VLC_ADD_PLUGIN([quicktime])
  else
  AC_CHECK_HEADERS(QuickTime/QuickTime.h,
    [ VLC_ADD_PLUGIN([quicktime])
      VLC_ADD_LIBS([quicktime],[-Wl,-framework,QuickTime,-framework,Carbon])
    ], [ AC_MSG_ERROR([cannot find QuickTime headers]) ])
  fi
fi

dnl
dnl A52/AC3 decoder plugin
dnl
AC_ARG_ENABLE(a52,
  [  --enable-a52            A/52 support with liba52 (default enabled)])
if test "${enable_a52}" != "no"
then
  AC_ARG_WITH(a52,
    [  --with-a52=PATH         a52 headers and libraries])
  AC_ARG_WITH(a52-tree,
    [  --with-a52-tree=PATH    a52dec tree for static linking ],[],[])
  if test "${with_a52_tree}" != "no" -a -n "${with_a52_tree}"
  then
    real_a52_tree="`cd ${with_a52_tree} 2>/dev/null && pwd`"
    if test -z "${real_a52_tree}"
    then
      dnl  The given directory can't be found
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([${with_a52_tree} directory does not exist])
    fi
    dnl  Use a custom a52dec
    AC_MSG_CHECKING(for a52.h in ${real_a52_tree}/include)
    if test -f ${real_a52_tree}/include/a52.h
    then
      AC_MSG_RESULT(yes)
      VLC_ADD_CPPFLAGS([a52tofloat32],[-I${real_a52_tree}])
      VLC_ADD_LIBS([a52tofloat32],[-L${real_a52_tree}/liba52/.libs])
      VLC_SAVE_FLAGS
      LDFLAGS="${LDFLAGS} ${LIBS_a52tofloat32}"
      AC_CHECK_LIB(a52, a52_free, [
        VLC_ADD_PLUGIN([a52tofloat32])
        VLC_ADD_CPPFLAGS([a52tofloat32],[-DUSE_A52DEC_TREE])
        VLC_ADD_LIBS([a52tofloat32],[-la52])
        ],[
        if test -f ${real_a52_tree}/liba52/.libs/liba52.a
        then
          AC_MSG_ERROR([make sure you have at least a52dec-0.7.3 ($real_a52_tree)])
        else
          AC_MSG_ERROR([the specified tree has not been compiled])
        fi
      ])
    else
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([the specified tree does not have a52.h])
    fi
  else
    if test -z "${with_a52}"
    then
      LDFLAGS_test=""
      CPPFLAGS_test=""
    else
      LDFLAGS_test="-L${with_a52}/lib"
      CPPFLAGS_test="-I${with_a52}/include"
    fi
    VLC_SAVE_FLAGS
    CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_test} ${CPPFLAGS_a52tofloat32}"
    LDFLAGS="${LDFLAGS} ${LDFLAGS_test} ${LIBS_a52tofloat32}"
    AC_CHECK_HEADERS(a52dec/a52.h, [
      AC_CHECK_LIB(a52, a52_free, [
        VLC_ADD_PLUGIN([a52tofloat32])
        VLC_ADD_LIBS([a52tofloat32],[${LDFLAGS_test} -la52])
        VLC_ADD_CPPFLAGS([a52tofloat32],[${CPPFLAGS_test}])
      ],[
        AC_MSG_ERROR([Could not find liba52 on your system: you may get it from http://liba52.sf.net/. Alternatively you can use --disable-a52 to disable the a52 plugin.])
        ], [$LIBM])
    ],[
      AC_MSG_ERROR([Could not find liba52 on your system: you may get it from http://liba52.sf.net/. Alternatively you can use --disable-a52 to disable the a52 plugin.])
    ])
    VLC_RESTORE_FLAGS
  fi
fi

dnl
dnl DTS Coherent Acoustics decoder plugin
dnl
PKG_ENABLE_MODULES_VLC([DCA], [dtstofloat32], [libdca >= 0.0.5], [DTS Coherent Acoustics support with libdca], [auto])

dnl
dnl  Flac plugin
dnl
PKG_ENABLE_MODULES_VLC([FLAC], [], [flac], [libflac decoder/encoder support], [auto])

dnl
dnl  Libmpeg2 plugin
dnl
PKG_ENABLE_MODULES_VLC([LIBMPEG2], [], [libmpeg2 > 0.3.2], [libmpeg2 decoder support], [auto])

dnl
dnl  Vorbis plugin
dnl
PKG_ENABLE_MODULES_VLC([VORBIS], [], [ogg vorbis >= 1.1 vorbisenc >= 1.1], [Vorbis decoder and encoder], [auto])

dnl
dnl  Tremor plugin
dnl
AC_ARG_ENABLE(tremor,
  [  --enable-tremor         Tremor decoder support (default disabled)])
if test "${enable_tremor}" = "yes"
then
  AC_CHECK_HEADERS(tremor/ivorbiscodec.h, [
    VLC_ADD_PLUGIN([tremor])
   ],[])
fi

dnl
dnl  Speex plugins
dnl
PKG_ENABLE_MODULES_VLC([SPEEX], [], [ogg speex >= 1.0.5], [Speex support], [auto])
have_speexdsp="no"
AS_IF([test "${enable_speex}" != "no"], [
  PKG_CHECK_MODULES([SPEEXDSP], [speexdsp], [
    have_speexdsp="yes"
  ], [
    AC_MSG_WARN([${SPEEXDSP_PKG_ERRORS}.])
  ])
])
AM_CONDITIONAL([HAVE_SPEEXDSP], [test "$have_speexdsp" = "yes"])

dnl
dnl  Opus plugin
dnl
PKG_ENABLE_MODULES_VLC([OPUS], [], [ogg opus >= 1.0.3], [Opus support], [auto])

dnl
dnl  theora decoder plugin
dnl
PKG_ENABLE_MODULES_VLC([THEORA], [], [ogg theoradec >= 1.0 theoraenc], [experimental theora codec], [auto])

dnl
dnl  dirac encoder plugin
dnl
PKG_ENABLE_MODULES_VLC([DIRAC], [], [dirac >= 0.10.0], [dirac encoder], [auto])

dnl
dnl  schroedinger decoder plugin (for dirac format video)
dnl
PKG_ENABLE_MODULES_VLC([SCHROEDINGER], [], [schroedinger-1.0 >= 1.0.10], [dirac decoder and encoder using schroedinger], [auto])

dnl
dnl  PNG decoder module
dnl
AC_ARG_ENABLE(png,
  [  --enable-png            PNG support (default enabled)])
AS_IF([test "${enable_png}" != "no"], [
AC_CHECK_HEADERS(png.h, [
  VLC_SAVE_FLAGS
  LDFLAGS="${LDFLAGS} -lz $LIBM"
  AC_CHECK_LIB(png, png_set_rows, [
    VLC_ADD_PLUGIN([png])
  ], [], [-lz $LIBM])
  VLC_RESTORE_FLAGS
  ])
])

dnl
dnl H262 encoder plugin (lib262)
dnl
AC_ARG_ENABLE(x262,
  [  --enable-x262           H262 encoding support with static libx262 (default disabled)])
if test "${enable_x262}" != "no"; then
AC_ARG_WITH(x262-tree,
  [ --with-x262-tree=PATH      H262 encoding module with libx262 (static linking)],[],[])
  if test "${with_x262_tree}" != "no" -a -n "${with_x262_tree}"
  then
    real_x262_tree="̧`cd ${with_x262_tree} 2>/dev/null && pwd`"
    if test -z "${real_x262_tree}"
    then
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([${with_x262_tree} directory does not exist])
    fi
    AC_MSG_CHECKING(for x262.h in ${real_x262_tree})
    if test -f ${with_x262_tree}/x262_config.h
    then
      VLC_ADD_PLUGIN([x262])
      VLC_ADD_CFLAGS([x262],[-I${with_x262_tree}])
      VLC_ADD_LIBS([x262],[-L${with_x262_tree} -lm -lpthread -lx262])
    else
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([${with_x262_tree} doesnt have x262_config.h])
    fi
  else
    PKG_CHECK_MODULES(X262, x262, [
        VLC_ADD_PLUGIN([x262])
        VLC_ADD_LDFLAGS([x262],[${X262_LIBS}])
        AS_IF([test -n "${ac_cv_ld_bsymbolic}"], [
          VLC_ADD_LIBS([x262],[${av_cv_ld_bsymbolic}])
        ])
        VLC_ADD_CFLAGS([x262],[${X262_CFLAGS}])
        if echo ${X262_LIBS} |grep -q 'pthreadGC2'; then
          VLC_ADD_CFLAGS([x262], [-DPTW32_STATIC_LIB])
        fi
    ], [
       if test "${enable_x262}" = "yes"; then
        AC_MSG_ERROR([x262 module doesn't work without staticly compiled libx262.a])
       fi
    ])
  fi
fi

dnl x265 encoder
AC_ARG_ENABLE(x265,
  AS_HELP_STRING([--enable-x265],[H265 / HEVC encoding support with libx265 (default enabled)]))
AS_IF( [test "${enable_x265}" != "no"],[
  AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <x265.h>
#if X265_BUILD != 1
# error Fail
#endif
  ])], [
    AC_CHECK_LIB([x265],[x265_encoder_open_1], [
      VLC_ADD_PLUGIN([x265])
      VLC_ADD_LIBS([x265], [-lx265 -lstdc   -lm -lpthread])
    ], [
      AC_MSG_ERROR([x265 library not found])
    ], [-lstdc   -lm -lpthread])
  ], [
    AS_IF([test "${enable_x265}" = "yes"], [
        AC_MSG_ERROR([x265.h not found])
    ])
  ])
])


dnl
dnl H264 encoder plugin (10-bit lib264)
dnl
AC_ARG_ENABLE(x26410b,
  [  --enable-x26410b           H264 10-bit encoding support with static libx264 (default disabled)])
if test "${enable_x26410b}" != "no"; then
AC_ARG_WITH(x26410b-tree,
  [ --with-x26410b-tree=PATH      H264 10-bit encoding module with libx264 (static linking)],[],[])
  if test "${with_x26410b_tree}" != "no" -a -n "${with_x26410b_tree}"
  then
    real_x26410b_tree="̧`cd ${with_x26410b_tree} 2>/dev/null && pwd`"
    if test -z "${real_x26410b_tree}"
    then
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([${with_x26410b_tree} directory does not exist])
    fi
    AC_MSG_CHECKING(for x264.h in ${real_x26410b_tree})
    if test -f ${with_x26410b_tree}/x264_config.h
    then
      AC_MSG_RESULT(yes)
      AC_MSG_CHECKING(for 10-bit build of x264)
      if grep -q "BIT_DEPTH.*10"  ${with_x26410b_tree}/x264_config.h ;then
        AC_MSG_RESULT(yes)
        VLC_ADD_PLUGIN([x26410b])
        VLC_ADD_CFLAGS([x26410b],[-I${with_x26410b_tree}])
        VLC_ADD_LIBS([x26410b],[-L${with_x26410b_tree} -lm -lpthread -lx264])
      else
        AC_MSG_RESULT(no)
        AC_MSG_ERROR([${with_x26410b_tree} isnt build 10-bit])
      fi
    else
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([${with_x26410b_tree} doesnt have x264_config.h])
    fi
  else
    PKG_CHECK_MODULES(X26410B, x26410b, [
        VLC_ADD_PLUGIN([x26410b])
        VLC_ADD_LIBS([x26410b],[${X26410B_LIBS}])
        AS_IF([test -n "${ac_cv_ld_bsymbolic}"], [
          VLC_ADD_LDFLAGS([x26410b],[${ac_cv_ld_bsymbolic}])
        ])
        VLC_ADD_CFLAGS([x26410b],[${X26410B_CFLAGS}])
        if echo ${X26410B_LIBS} |grep -q 'pthreadGC2'; then
          VLC_ADD_CFLAGS([x26410b], [-DPTW32_STATIC_LIB])
        fi
    ], [
       if test "${enable_x26410b}" = "yes"; then
        AC_MSG_ERROR([x26410b module doesn't work without staticly compiled libx264.a])
       fi
    ])
  fi
fi


dnl
dnl H264 encoder plugin (using libx264)
dnl
AC_ARG_ENABLE(x264,
  [  --enable-x264           H264 encoding support with libx264 (default enabled)])
if test "${enable_x264}" != "no"; then
  AC_ARG_WITH(x264-tree,
    [  --with-x264-tree=PATH   x264 tree for static linking ],[],[])
  if test "${with_x264_tree}" != "no" -a -n "${with_x264_tree}"
  then
    real_x264_tree="`cd ${with_x264_tree} 2>/dev/null && pwd`"
    if test -z "${real_x264_tree}"
    then
      dnl  The given directory can't be found
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([${with_x264_tree} directory does not exist])
    fi
    dnl  Use a custom libx264
    AC_MSG_CHECKING(for x264.h in ${real_x264_tree})
    if test -f ${real_x264_tree}/x264.h
    then
      AC_MSG_RESULT(yes)
      VLC_ADD_CPPFLAGS([x264],[-I${real_x264_tree}])
      VLC_ADD_LIBS([x264],[-L${real_x264_tree}])
      PKG_CHECK_MODULES(X264,x264, [
        VLC_ADD_PLUGIN([x264])
        VLC_ADD_LIBS([x264],[${X264_LIBS}])
        VLC_ADD_CFLAGS([x264],[${X264_CFLAGS}])
        if echo ${X264_LIBS} |grep -q 'pthreadGC2'; then
          VLC_ADD_CFLAGS([x264], [-DPTW32_STATIC_LIB])
        fi
      ],[
        AC_MSG_ERROR([the specified tree has not been compiled])
      ])
    else
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([the specified tree does not have x264.h])
    fi
  else
      PKG_CHECK_MODULES(X264,x264 >= 0.86, [
        VLC_ADD_PLUGIN([x264])
        VLC_ADD_LIBS([x264],[${X264_LIBS}])

        AS_IF([test -n "${ac_cv_ld_bsymbolic}"], [
          VLC_ADD_LDFLAGS([x264],[${ac_cv_ld_bsymbolic}])
        ])

        VLC_ADD_CFLAGS([x264],[${X264_CFLAGS}])
        if echo ${X264_LIBS} |grep -q 'pthreadGC2'; then
          VLC_ADD_CFLAGS([x264], [-DPTW32_STATIC_LIB])
        fi
      ],[
        if test "${enable_x264}" = "yes"; then
            AC_MSG_ERROR([${X264_PKG_ERRORS}: you may get it from http://www.videolan.org/x264.html])
          fi
      ])
  fi
fi

dnl
dnl Intel QuickSync (aka MediaSDK) H264/H262 encoder
dnl
PKG_ENABLE_MODULES_VLC([MFX], [qsv], [libmfx], [Intel QuickSync MPEG4-Part10/MPEG2 (aka H.264/H.262) encoder], [auto])

dnl
dnl libfluidsynth (MIDI synthetizer) plugin
dnl
PKG_ENABLE_MODULES_VLC([FLUIDSYNTH], [], [fluidsynth >= 1.1.2], [MIDI synthetiser with libfluidsynth], [auto])

dnl
dnl Teletext Modules
dnl vbi decoder plugin (using libzbvi)
dnl telx module
dnl uncompatible
dnl
AC_ARG_ENABLE(zvbi,
  AS_HELP_STRING([--enable-zvbi],[VBI (inc. Teletext) decoding support with
                  libzvbi (default enabled)]))
AC_ARG_ENABLE(telx,
  AS_HELP_STRING([--enable-telx],[Teletext decoding module (conflicting with
                  zvbi) (default enabled if zvbi is absent)]))

AS_IF( [test "${enable_zvbi}" != "no"],[
    PKG_CHECK_MODULES(ZVBI, [zvbi-0.2 >= 0.2.28],
        [
          VLC_ADD_PLUGIN([zvbi])
          AC_DEFINE(ZVBI_COMPILED, 1, [Define if the zvbi module is built])
          AS_IF( [test "${enable_telx}" = "yes"],[
                  AC_MSG_WARN([The zvbi and telx modules are incompatible. Using zvbi.])
                  ])
        ],[
          AC_MSG_WARN([${ZVBI_PKG_ERRORS}. Enabling the telx module instead.])
        ])
    ])
AS_IF( [test "${enable_telx}" != "no" ],[
  VLC_ADD_PLUGIN([telx])
  ])

dnl
dnl libass subtitle rendering module
dnl
AC_ARG_ENABLE(libass,
  [  --enable-libass         Subtitle support using libass (default enabled)])
AS_IF( [test "${enable_libass}" != "no"], [
  PKG_CHECK_MODULES(LIBASS, [libass >= 0.9.8],
      [
        VLC_ADD_PLUGIN([libass])

        AC_CHECK_HEADERS(fontconfig/fontconfig.h,
          [VLC_ADD_CPPFLAGS([libass],[-DHAVE_FONTCONFIG])
           VLC_ADD_LIBS([libass],[-lfontconfig])
       ])
      ],[
        AC_MSG_WARN([${LIBASS_PKG_ERRORS}.])
      ])
  ])

dnl
dnl  kate decoder plugin
dnl
PKG_ENABLE_MODULES_VLC([KATE], [], [kate >= 0.3.0], [kate codec], [auto])

dnl
dnl  tiger rendering for kate decoder plugin
dnl
AC_ARG_ENABLE(tiger,
[  --enable-tiger          Tiger rendering library for Kate streams (default auto)])
AS_IF([test "${enable_tiger}" != "no"], [
  PKG_CHECK_MODULES(TIGER,[tiger >= 0.3.1], [
      AC_DEFINE(HAVE_TIGER, 1, [Define if libtiger is available.])],[
        AS_IF([test -n "${enable_tiger}"], [
          AC_MSG_ERROR([${TIGER_PKG_ERRORS}.])
        ])
  ])
])


dnl
dnl  Video plugins
dnl

EXTEND_HELP_STRING([Video plugins:])

dnl
dnl  OpenGL
dnl
PKG_CHECK_MODULES([GL], [gl], [
  have_gl="yes"
], [
  AC_CHECK_HEADER([GL/gl.h], [
    have_gl="yes"
    GL_CFLAGS=""
    AS_IF([test "${SYS}" = "mingw32"], [
      AC_CHECK_HEADER([GL/glew.h], [
      ], [
        have_gl="no"
      ])
      GL_LIBS="-lopengl32"
    ], [
      GL_LIBS="-lGL"
    ])
  ], [
    have_gl="no"
  ])
])
AM_CONDITIONAL([HAVE_GL], [test "${have_gl}" = "yes"])

dnl OpenGL ES 2: depends on EGL 1.1
PKG_ENABLE_MODULES_VLC([GLES2], [], [glesv2], [OpenGL ES v2 support], [disabled])
dnl OpenGL ES 1: depends on EGL 1.0
PKG_ENABLE_MODULES_VLC([GLES1], [], [glesv1_cm], [OpenGL ES v1 support], [disabled])

AC_ARG_ENABLE(egl,
  [  --enable-egl            OpenGL support through EGL (default disabled)],, [
  enable_egl="no"
])
AS_IF([test "$enable_egl" != "no"], [
  PKG_CHECK_MODULES([EGL], [egl], [
    VLC_ADD_PLUGIN([egl])
  ])
])

dnl
dnl  Xlib
dnl

AC_PATH_XTRA()
AC_CHECK_HEADERS(X11/Xlib.h)

dnl
dnl  X C Bindings modules
dnl
AC_ARG_ENABLE(xcb,
  [  --enable-xcb            X11 support with XCB (default enabled)],, [
  AS_IF([test "${SYS}" != "mingw32" -a "${SYS}" != "darwin" -a "${SYS}" != "symbian"], [
    enable_xcb="yes"
  ], [
    enable_xcb="no"
  ])
])
AC_ARG_ENABLE(xvideo,
  [  --enable-xvideo         XVideo support (default enabled)],, [
    enable_xvideo="$enable_xcb"
])
AC_ARG_ENABLE(glx,
  [  --enable-glx            OpenGL support through GLX (default enabled)],, [
  enable_glx="$enable_xcb"
])

have_xcb="no"
have_xcb_keysyms="no"
have_xcb_randr="no"
have_xcb_xvideo="no"
AS_IF([test "${enable_xcb}" != "no"], [
  dnl libxcb
  PKG_CHECK_MODULES(XCB, [xcb >= 1.6])
  have_xcb="yes"
  PKG_CHECK_MODULES(XCB_SHM, [xcb-shm])
  PKG_CHECK_MODULES(XCB_COMPOSITE, [xcb-composite])
  PKG_CHECK_MODULES(XPROTO, [xproto])

  AS_IF([test "${enable_xvideo}" != "no"], [
    PKG_CHECK_MODULES(XCB_XV, [xcb-xv >= 1.1.90.1], [have_xcb_xvideo="yes"])
  ])

  PKG_CHECK_MODULES(XCB_RANDR, [xcb-randr >= 1.3], [have_xcb_randr="yes"])

  dnl xcb-utils
  PKG_CHECK_MODULES(XCB_KEYSYMS, [xcb-keysyms >= 0.3.4], [have_xcb_keysyms="yes"], [
    AC_MSG_WARN([${XCB_KEYSYMS_PKG_ERRORS}. Hotkeys will not work.])
  ])
])
AM_CONDITIONAL([HAVE_XCB], [test "${have_xcb}" = "yes"])
AM_CONDITIONAL([HAVE_XCB_KEYSYMS], [test "${have_xcb_keysyms}" = "yes"])
AM_CONDITIONAL([HAVE_XCB_RANDR], [test "${have_xcb_randr}" = "yes"])
AM_CONDITIONAL([HAVE_XCB_XVIDEO], [test "${have_xcb_xvideo}" = "yes"])


dnl
dnl VDPAU needs X11
dnl
AC_ARG_ENABLE(vdpau,
  [AS_HELP_STRING([--enable-vdpau], [VDPAU hardware support (default auto)])])
have_vdpau="no"
AS_IF([test "${enable_vdpau}" != "no"], [
  PKG_CHECK_MODULES([VDPAU], [vdpau >= 0.6], [
    have_vdpau="yes"
    AS_IF([test "${no_x}" = "yes"], [
      AC_MSG_ERROR([VDPAU requires Xlib (X11).])
    ])
  ], [
    AS_IF([test -n "${enable_vdpau}"], [
      AC_MSG_ERROR([${VDPAU_PKG_ERRORS}.])
    ])
  ])
])
AM_CONDITIONAL([HAVE_VDPAU], [test "${have_vdpau}" = "yes"])

have_avcodec_vdpau="no"
AS_IF([test "${have_vdpau}" = "yes" -a "${have_avcodec}" = "yes"], [
  PKG_CHECK_EXISTS([libavutil >= 0.52.4 libavcodec >= 54.36.0], [
    have_avcodec_vdpau="yes"
    AC_MSG_NOTICE([VDPAU decoding acceleration activated])
  ], [
    AS_IF([test -n "${enable_vdpau}"], [
      AC_MSG_ERROR([libavutil >= 0.52.4 and libavcodec >= 54.36.0 are required for VDPAU decoding.])
    ], [
      AC_MSG_WARN([libavutil >= 0.52.4 and libavcodec >= 54.36.0 are required for VDPAU decoding.])
    ])
  ])
])
AM_CONDITIONAL([HAVE_AVCODEC_VDPAU], [test "${have_avcodec_vdpau}" = "yes"])


dnl
dnl  SDL module
dnl
AC_ARG_ENABLE(sdl,
  [  --enable-sdl            SDL support (default enabled)])
AC_ARG_ENABLE(sdl-image,
  [  --enable-sdl-image      SDL image support (default enabled)])
if test "${enable_sdl}" != "no"
then
   PKG_CHECK_MODULES(SDL, [sdl >= 1.2.10], [
      # SDL on Darwin is heavily patched and can only run SDL_image
      if test "${SYS}" != "darwin"; then
        VLC_ADD_PLUGIN([vout_sdl])
      fi
      if test "${SYS}" != "mingw32" -a "${SYS}" != "os2"; then
        VLC_ADD_LIBS([vout_sdl],[${X_LIBS} ${X_PRE_LIBS} -lX11])
      fi
      VLC_ADD_CFLAGS([vout_sdl],[${SDL_CFLAGS}])
      VLC_ADD_LIBS([vout_sdl],[${SDL_LIBS}])

      # SDL_image
      AS_IF([ test "${enable_sdl_image}" != "no"],[
        PKG_CHECK_MODULES(SDL_IMAGE, [SDL_image >= 1.2.10], [
          VLC_ADD_PLUGIN([sdl_image])],
          [ AC_MSG_WARN([${SDL_IMAGE_PKG_ERRORS}. You should install it alongside your SDL package.])
          ])
      ])
   ],[
     AC_MSG_WARN([${SDL_PKG_ERRORS}.])
   ])
fi


dnl
dnl Mac Vout
AC_ARG_ENABLE(macosx-vout,
  [  --enable-macosx-vout    Mac OS X video output module (default enabled on Mac OS X)])
if test "x${enable_macosx_vout}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_vout}" = "yes")
then
  VLC_ADD_LIBS([vout_macosx],[-Wl,-framework,Cocoa])
  VLC_ADD_LIBS([vout_macosx],[-Wl,-framework,OpenGL])
  VLC_ADD_PLUGIN([vout_macosx])
fi

dnl
dnl Mac CoreGraphics Layer Vout
AC_ARG_ENABLE(coregraphicslayer-vout,
  [  --enable-coregraphicslayer-vout CoreGraphics layered video output module (default disabled)])
if test "${enable_coregraphicslayer_vout}" = "yes"; then
  VLC_ADD_LIBS([vout_coregraphicslayer],[-Wl,-framework,Cocoa])
  VLC_ADD_LIBS([vout_coregraphicslayer],[-Wl,-framework,QuartzCore])
  VLC_ADD_PLUGIN([vout_coregraphicslayer])
fi

dnl
dnl  freetype module
dnl
AC_ARG_ENABLE(freetype,
  [  --enable-freetype       freetype support   (default auto)])
AC_ARG_ENABLE(fribidi,
  [  --enable-fribidi        fribidi support    (default auto)])
AC_ARG_ENABLE(fontconfig,
  [  --enable-fontconfig     fontconfig support (default auto)])

AC_ARG_WITH([default-font],
    AS_HELP_STRING([--with-default-font=PATH],
        [Path to the default font]),
        [AC_DEFINE_UNQUOTED([DEFAULT_FONT_FILE],
            "$withval", [Default font])])
AC_ARG_WITH([default-monospace-font],
    AS_HELP_STRING([--with-default-monospace-font=PATH],
        [Path to the default font]),
        [AC_DEFINE_UNQUOTED([DEFAULT_MONOSPACE_FONT_FILE],
            "$withval", [Default monospace font])])

AC_ARG_WITH([default-font-family],
    AS_HELP_STRING([--with-default-font-family=NAME],
        [Path to the default font family]),
        [AC_DEFINE_UNQUOTED([DEFAULT_FAMILY],
            "$withval", [Default font family])])
AC_ARG_WITH([default-monospace-font-family],
    AS_HELP_STRING([--with-default-monospace-font-family=NAME],
        [Path to the default font family]),
        [AC_DEFINE_UNQUOTED([DEFAULT_MONOSPACE_FAMILY],
            "$withval", [Default monospace font family])])

if test "${enable_freetype}" != "no"; then
   PKG_CHECK_MODULES(FREETYPE, freetype2, [
      have_freetype=yes
      VLC_ADD_PLUGIN([freetype])
      VLC_ADD_CPPFLAGS([freetype skins2],[${FREETYPE_CFLAGS}])
      if test "${SYS}" = "mingw32"; then
        VLC_ADD_LIBS([freetype],[-liconv -lz])
      fi
      VLC_ADD_LIBS([freetype skins2],[${FREETYPE_LIBS}])

      AC_CHECK_HEADERS(Carbon/Carbon.h,
                       [VLC_ADD_LIBS([freetype],[-Wl,-framework,Carbon])])

      dnl fontconfig support
      if test "${SYS}" != "mingw32"; then
          if test "${enable_fontconfig}" != "no"; then
            AC_CHECK_HEADERS(fontconfig/fontconfig.h, [
              VLC_ADD_CPPFLAGS([freetype],[-DHAVE_FONTCONFIG])
              VLC_ADD_LIBS([freetype],[-lfontconfig])
            ],[AC_MSG_WARN([library fontconfig not found. Styles will be disabled in freetype])])
          fi
      else
          VLC_ADD_LIBS([freetype],[-lgdi32])
      fi

      dnl fribidi support
      if test "${enable_fribidi}" != "no"; then
        PKG_CHECK_MODULES(FRIBIDI, fribidi, [
          VLC_ADD_CPPFLAGS([freetype skins2], [${FRIBIDI_CFLAGS} -DHAVE_FRIBIDI])
          VLC_ADD_LIBS([freetype skins2], [${FRIBIDI_LIBS}])
        ],[AC_MSG_WARN([${FRIBIDI_PKG_ERRORS}. Bidirectional support will be disabled in FreeType.])])
      fi

  ],[
  have_freetype=no
  AS_IF([test -n "${enable_freetype}"],[
    AC_MSG_ERROR([${FREETYPE_PKG_ERRORS}. Install FreeType2 development or configure with --disable-freetype.])
    ])
  ])
fi


dnl
dnl  QuartzText vout module (iOS/Mac OS)
dnl
AC_ARG_ENABLE(macosx-quartztext,
  [  --enable-macosx-quartztext   Mac OS X quartz text module (default enabled on Mac OS X)])
if test "x${enable_macosx_quartztext}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_quartztext}" = "yes")
then
  VLC_ADD_PLUGIN([quartztext])
  VLC_ADD_LIBS([quartztext],[-Wl,-framework,ApplicationServices])
fi

dnl
dnl  SVG module
dnl
PKG_ENABLE_MODULES_VLC([SVG], [], [librsvg-2.0 >= 2.9.0], [SVG rendering library],[auto])

dnl
dnl  android surface module
dnl
AC_ARG_ENABLE(android-surface,
  [  --enable-android-surface   Android Surface video output module (default disabled)])
if test "${enable_android_surface}" = "yes"; then
  if test "${HAVE_ANDROID}" = "1"; then
     VLC_ADD_PLUGIN([android_surface])
     VLC_ADD_LIBS([android_surface], [-ldl])
  fi
fi


dnl
dnl  iOS vout module
dnl
AC_ARG_ENABLE(ios-vout,
  [  --enable-ios-vout    iOS video output module (default disabled)])
if test "${enable_ios_vout}" = "yes"
then
  VLC_ADD_PLUGIN([vout_ios])
  VLC_ADD_LIBS([vout_ios], [-Wl,-framework,OpenGLES,-framework,QuartzCore,-framework,UIKit,-framework,Foundation])
fi

dnl
dnl  iOS ES2 vout module
dnl
AC_ARG_ENABLE(ios-vout2,
  [  --enable-ios-vout2    iOS video output module (default disabled)])
if test "${enable_ios_vout2}" = "yes"
then
  VLC_ADD_PLUGIN([vout_ios2])
  VLC_ADD_LIBS([vout_ios2], [-Wl,-framework,OpenGLES,-framework,QuartzCore,-framework,UIKit])
fi


dnl
dnl  Windows DirectX module
dnl

AC_ARG_ENABLE(directx,
  [AS_HELP_STRING([--enable-directx],
    [Microsoft DirectX support (default enabled on Windows)])],, [
  AS_IF([test "${SYS}" = "mingw32"], [
    enable_directx="yes"
  ], [
    enable_directx="no"
  ])
])
have_directx="no"
AS_IF([test "${enable_directx}" != "no"], [
  dnl DirectDraw
  AC_CHECK_HEADERS(ddraw.h, [
    have_directx="yes"
  ], [
    AC_MSG_ERROR([Cannot find DirectX headers!])
  ])

  dnl OpenGL
  AC_CHECK_HEADERS(GL/wglew.h, [
    VLC_ADD_PLUGIN([glwin32])
  ],, [
    #include <windows.h>
    #include <GL/gl.h>
  ])

  dnl Direct3D
  AC_CHECK_HEADERS(d3d9.h, [
    VLC_ADD_PLUGIN([direct3d])
  ])

  dnl Direct2D
  AC_CHECK_HEADERS(d2d1.h, [
    VLC_ADD_PLUGIN([direct2d])
  ])
])
AM_CONDITIONAL([HAVE_DIRECTX], [test "$have_directx" = "yes"])

dnl
dnl  Linux framebuffer module
dnl
AC_CHECK_HEADER([linux/fb.h], [
  VLC_ADD_PLUGIN([fb])
])


dnl
dnl  DirectFB module
dnl  try to find using: 1 - given location; 2 - directfb-config; 3 - pkg-config
dnl  TODO: support for static linking
dnl
AC_ARG_ENABLE(directfb,
  [  --enable-directfb       DirectFB support (default disabled)])
AC_ARG_WITH(directfb,
  [  --with-directfb=PATH    path to DirectFB headers and libraries])

if test "${enable_directfb}" = "yes"; then
    have_directfb="false"
    CPPFLAGS_mydirectfb=
    LIBS_mydirectfb=
    if test "${with_directfb}" != "no" -a -n "${with_directfb}"; then
        dnl Trying the given location
        VLC_SAVE_FLAGS

        CPPFLAGS_new="-I${with_directfb}/include -D_REENTRANT -D_GNU_SOURCE"
        LIBS_new="-L${with_directfb}/lib/fusion/.libs/ -L${with_directfb}/lib/direct/.libs/ -L${with_directfb}/src/.libs/"

        CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_new}"
        LIBS="${LIBS} ${LIBS_new}"

        dnl FIXME: too obscure
        AC_CHECK_HEADER([directfb.h], [
            AC_CHECK_LIB([direct],[direct_initialize], [
                AC_CHECK_LIB([fusion], [fusion_enter], [
                    AC_CHECK_LIB([directfb], [DirectFBInit], have_directfb="true", have_directfb="false")
                ], have_directfb="false")
            ], have_directfb="false")
        ], have_directfb="false")

        VLC_RESTORE_FLAGS

        if test "${have_directfb}" = "true"; then
            LIBS_mydirectfb="${LIBS_new} -lz $LIBDL -ldirectfb -lfusion -ldirect -lpthread"
            CPPFLAGS_mydirectfb="${CPPFLAGS_new}"
        fi
    else
        dnl Look for directfb-config
        AC_PATH_PROG(DIRECTFB_CONFIG, directfb-config, no, ${PATH})
        if test "${DIRECTFB_CONFIG}" != "no"; then
            CPPFLAGS_mydirectfb="`${DIRECTFB_CONFIG} --cflags`"
            LIBS_mydirectfb="`${DIRECTFB_CONFIG} --libs`"
            have_directfb="true"
        else
            dnl Trying with pkg-config
            PKG_CHECK_MODULES(DIRECTFB, directfb, [
                CPPFLAGS_mydirectfb="${DIRECTFB_CFLAGS}"
                LIBS_mydirectfb="${DIRECTFB_LIBS}"
                have_directfb="true"
                ], [have_directfb="false"])
        fi
    fi
    if test "${have_directfb}" = "true"; then
        VLC_ADD_PLUGIN([directfb])
        VLC_ADD_CPPFLAGS([directfb],[${CPPFLAGS_mydirectfb}])
        VLC_ADD_LIBS([directfb],[${LIBS_mydirectfb}])
    else
        AC_MSG_ERROR([${DIRECTFB_PKG_ERRORS}.])
    fi
fi

dnl
dnl  AA plugin
dnl
AC_ARG_ENABLE(aa,
  [  --enable-aa             aalib output (default disabled)])
if test "${enable_aa}" = "yes"
then
  AC_CHECK_HEADER(aalib.h,have_aa="true",have_aa="false")
  if test "${have_aa}" = "true"
  then
    VLC_ADD_PLUGIN([aa])
    VLC_ADD_LIBS([aa],[-laa])
    if test "${SYS}" != "mingw32"; then
      VLC_ADD_LIBS([aa],[${X_LIBS} ${X_PRE_LIBS} -lX11])
    fi
  fi
fi

dnl
dnl  libcaca plugin
dnl
PKG_ENABLE_MODULES_VLC([CACA], [], [caca >= 0.99.beta14], [libcaca output],[auto])

dnl
dnl  OS/2 KVA plugin
dnl
AC_ARG_ENABLE(kva,
  [AS_HELP_STRING([--enable-kva],
    [support the K Video Accelerator KVA (default enabled on OS/2)])],, [
  AS_IF([test "$SYS" = "os2"], [
    enable_kva="yes"
  ])
])
have_kva="no"
KVA_LIBS=""
AS_IF([test "$enable_kva" != "no"], [
  AC_CHECK_HEADERS([kva.h], [
    have_kva="yes"
    AC_CHECK_LIB(kva, main, [
      KVA_LIBS="-lkva"
    ])
  ])
])
AC_SUBST(KVA_LIBS)
AM_CONDITIONAL([HAVE_KVA], [test "${have_kva}" = "yes"])

dnl
dnl  Audio plugins
dnl

EXTEND_HELP_STRING([Audio plugins:])

dnl
dnl  Pulseaudio module
dnl
AC_ARG_ENABLE(pulse,
  [AS_HELP_STRING([--enable-pulse],
    [use the PulseAudio client library (default auto)])])
have_pulse="no"
AS_IF([test "${enable_pulse}" != "no"], [
  PKG_CHECK_MODULES([PULSE], [libpulse >= 0.9.22], [
    have_pulse="yes"
  ], [
    PKG_CHECK_MODULES([PULSE], [libpulse >= 0.9.16], [
      AS_IF([test "${no_x}" != "yes"], [
        have_pulse="yes"
        PULSE_LIBS="$PULSE_LIBS ${X_LIBS} ${X_PRE_LIBS} -lX11"
      ], [
        AS_IF([test "${enable_pulse}" = "yes"], [
          AC_MSG_ERROR([Xlib is required with PulseAudio pre-0.9.22 versions
(see http://www.pulseaudio.org/ticket/799 for further reference).])
        ])
      ])
    ], [
      AS_IF([test "x${enable_pulse}" != "x"], [
        AC_MSG_ERROR([$PULSE_PKG_ERRORS. PulseAudio 0.9.22 or later required.])
      ])
    ])
  ])
])
AM_CONDITIONAL([HAVE_PULSE], [test "${have_pulse}" = "yes"])

dnl
dnl  ALSA module
dnl
AC_ARG_ENABLE(alsa,
  [AS_HELP_STRING([--enable-alsa],
    [support the Advanced Linux Sound Architecture (default auto)])],, [
  AS_IF([test "$SYS" = "linux" -a "${have_pulse}" = "no"], [
    enable_alsa="yes"
  ])
])
have_alsa="no"
AS_IF([test "${enable_alsa}" != "no"], [
  PKG_CHECK_MODULES([ALSA], [alsa >= 1.0.24], [
    have_alsa="yes"
  ], [
    AS_IF([test "x${enable_alsa}" != "x"], [
      AC_MSG_ERROR([$ALSA_PKG_ERRORS. alsa-lib 1.0.24 or later required.])
    ])
  ])
])
AM_CONDITIONAL([HAVE_ALSA], [test "${have_alsa}" = "yes"])

dnl
dnl  Open Sound System module
dnl
AC_ARG_ENABLE(oss,
  [AS_HELP_STRING([--enable-oss],
    [support the Open Sound System OSS (default enabled on FreeBSD/NetBSD/DragonFlyBSD)])],, [
  AS_IF([test "$SYS" = "mingw32" -o "$SYS" = "linux" -o "$SYS" = "openbsd"], [
    enable_oss="no"
  ])
])
have_oss="no"
OSS_LIBS=""
AS_IF([test "$enable_oss" != "no"], [
  AC_CHECK_HEADERS([soundcard.h sys/soundcard.h], [
    have_oss="yes"
    AC_CHECK_LIB(ossaudio, main, [
      OSS_LIBS="-lossaudio"
    ])
  ])
])
AC_SUBST(OSS_LIBS)
AM_CONDITIONAL([HAVE_OSS], [test "${have_oss}" = "yes"])

dnl
dnl  OpenBSD sndio module
dnl
AC_ARG_ENABLE([sndio],
  [AS_HELP_STRING([--disable-sndio],
    [support the OpenBSD sndio (default auto)])],, [
  AS_IF([test "$SYS" = "openbsd"], [
    enable_sndio="yes"
  ])
])
have_sndio="no"
AS_IF([test "$enable_sndio" != "no"], [
  AC_CHECK_HEADER([sndio.h], [
    have_sndio="yes"
  ])
])
AM_CONDITIONAL([HAVE_SNDIO], [test "${have_sndio}" = "yes"])

dnl
dnl  Windows Audio Session plugin
dnl
AC_ARG_ENABLE([wasapi],
  [AS_HELP_STRING([--enable-wasapi],
    [use the Windows Audio Session API (default auto)])
])
have_wasapi="no"
AS_IF([test "$enable_wasapi" != "no"], [
  AC_CHECK_HEADER([audioclient.h], [
    have_wasapi="yes"
  ], [
    AS_IF([test "x${enable_wasapi}" != "x"], [
      AC_MSG_ERROR([Windows Audio Session API not found.])
    ])
  ])
])
AM_CONDITIONAL([HAVE_WASAPI], [test "${have_wasapi}" = "yes"])

dnl
dnl  CoreAudio plugin
dnl
AC_ARG_ENABLE(macosx-audio,
  [  --enable-macosx-audio   Mac OS X audio module (default enabled on MacOS X)])
if test "x${enable_macosx_audio}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_audio}" = "yes")
then
  AC_CHECK_HEADER([CoreAudio/CoreAudio.h],
    [ VLC_ADD_PLUGIN([auhal])
    ], [ AC_MSG_ERROR([cannot find CoreAudio headers]) ])
fi

dnl
dnl  iOS CoreAudio plugin
dnl
AC_ARG_ENABLE(ios-audio,
  [  --enable-ios-audio       Audio module for iOS (default disabled)])
if test "${enable_ios_audio}" = "yes"
then
  AC_CHECK_HEADER([AudioUnit/AudioUnit.h],
    [ VLC_ADD_PLUGIN([audiounit_ios])
    ], [ AC_MSG_ERROR([cannot find AudioUnit headers]) ])
fi

dnl
dnl  AudioQueue plugin
dnl
AC_ARG_ENABLE(audioqueue,
  [  --enable-audioqueue     AudioQueue audio module (default disabled)])
if test "${enable_audioqueue}" = "yes"
then
  VLC_ADD_PLUGIN([audioqueue])
fi

dnl
dnl  JACK modules
dnl
AC_ARG_ENABLE(jack,
  [AS_HELP_STRING([--disable-jack],
    [do not use jack (default auto)])])
have_jack="no"
AS_IF([test "${enable_jack}" != "no"], [
    PKG_CHECK_MODULES(JACK, jack >= 1.9.7,
      [ have_jack=yes ],
      [
      AC_MSG_WARN([${JACK_PKG_ERRORS}, trying jack1 instead])

      PKG_CHECK_MODULES(JACK, jack >= 0.120.1 jack < 1.0,
      [ have_jack=yes ],
      [
      AS_IF([test -n "${enable_jack}"],
         [AC_MSG_ERROR([${JACK_PKG_ERRORS}.])],
         [AC_MSG_WARN([${JACK_PKG_ERRORS}.])])
      ])
    ])
])
AM_CONDITIONAL([HAVE_JACK], [test "${have_jack}" != "no"])

dnl
dnl  OpenSLES Android
dnl
AC_ARG_ENABLE(opensles,
  [  --enable-opensles       Android OpenSL ES audio module (default disabled)])
if test "${HAVE_ANDROID}" = "1"; then
  if test "${enable_opensles}" = "yes"; then
      AC_CHECK_HEADERS(SLES/OpenSLES.h,
        [ VLC_ADD_PLUGIN([opensles_android]) ],
        [ AC_MSG_ERROR([cannot find OpenSLES headers])] )
  fi
fi

dnl
dnl libsamplerate plugin
dnl
PKG_ENABLE_MODULES_VLC([SAMPLERATE], [], [samplerate], [Resampler with libsamplerate], [auto])

dnl
dnl  OS/2 KAI plugin
dnl
AC_ARG_ENABLE(kai,
  [AS_HELP_STRING([--enable-kai],
    [support the K Audio Interface KAI (default enabled on OS/2)])],, [
  AS_IF([test "$SYS" = "os2"], [
    enable_kai="yes"
  ])
])
have_kai="no"
KAI_LIBS=""
AS_IF([test "$enable_kai" != "no"], [
  AC_CHECK_HEADERS([kai.h], [
    have_kai="yes"
    AC_CHECK_LIB(kai, main, [
      KAI_LIBS="-lkai"
    ])
  ])
])
AC_SUBST(KAI_LIBS)
AM_CONDITIONAL([HAVE_KAI], [test "${have_kai}" = "yes"])

dnl
dnl  chromaprint audio track fingerprinter
dnl
m4_pushdef([libchromaprint_version], 0.6.0)
PKG_WITH_MODULES([CHROMAPRINT],[libchromaprint >= libchromaprint_version],
    VLC_ADD_PLUGIN([stream_out_chromaprint])
    VLC_ADD_CFLAGS([stream_out_chromaprint],[${CHROMAPRINT_CFLAGS}] [-I./webservices -I../stream_out])
    VLC_ADD_LIBS([stream_out_chromaprint],[${CHROMAPRINT_LIBS}]),
    AS_IF([test "${enable_chromaprint}" = "yes"],
        [AC_MSG_ERROR(Library [libchromaprint >= libchromaprint_version] needed for [chromaprint] was not found)],
        [AC_MSG_WARN(Library [libchromaprint >= libchromaprint_version] needed for [chromaprint] was not found)]
         ),
    [(Chromaprint based audio fingerprinter)],[auto])
m4_popdef([libchromaprint_version])

dnl
dnl  Interface plugins
dnl

EXTEND_HELP_STRING([Interface plugins:])

dnl
dnl QT
dnl
AC_ARG_ENABLE(qt, [
  AS_HELP_STRING([--disable-qt], [Qt UI support (default enabled)])],, [
  AS_IF([test "${SYS}" = "darwin"], [
    enable_qt="no"
  ])
])
AS_IF([test "${enable_qt}" != "no"], [
  PKG_CHECK_MODULES([QT], [Qt5Core >= 5.1.0 Qt5Widgets Qt5Gui], [
      QT_PATH="$(eval $PKG_CONFIG --variable=exec_prefix Qt5Core)"
      AC_PATH_PROGS(MOC, [moc-qt5 moc], moc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
      AC_PATH_PROG(RCC, [rcc-qt5 rcc], rcc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
      AC_PATH_PROGS(UIC, [uic-qt5 uic], uic, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
    ], [
      PKG_CHECK_MODULES([QT], [QtCore QtGui >= 4.6.0],, [
        AS_IF([test -n "${enable_qt}"],[
          AC_MSG_ERROR([${QT_PKG_ERRORS}.])
        ],[
          AC_MSG_WARN([${QT_PKG_ERRORS}.])
        ])
        enable_qt="no"
      ])
      QT_PATH="$(eval $PKG_CONFIG --variable=exec_prefix QtCore)"
      AC_PATH_PROGS(MOC, [moc-qt4 moc], moc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
      AC_PATH_PROG(RCC, rcc, rcc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
      AC_PATH_PROGS(UIC, [uic-qt4 uic], uic, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
    ])
])
AS_IF([test "${enable_qt}" != "no"], [
  VLC_ADD_PLUGIN([qt4])
  ALIASES="${ALIASES} qvlc"

  AC_LANG_PUSH([C  ])
  VLC_SAVE_FLAGS

  AC_MSG_CHECKING([whether Qt uses Xlib])
  CPPFLAGS="${CPPFLAGS} ${QT_CFLAGS}"
  AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <QWidget>
#if !defined (Q_WS_X11)
# error Fail
#endif
  ])], [
    AC_MSG_RESULT([yes])
  ], [
    AC_MSG_RESULT([no])
  ])

  VLC_RESTORE_FLAGS
  AC_LANG_POP([C  ])

])
AM_CONDITIONAL(ENABLE_QT4, [test "$enable_qt" != "no"])

dnl
dnl Simple test for skins2 dependency
dnl
AS_IF([test "$enable_qt" = "no"], [
  AS_IF([test "${enable_skins2}" = "yes"], [
    AC_MSG_ERROR([The skins2 module depends on the Qt4 interface. Without it you will not be able to open any dialog box from the interface, which makes the skins2 interface rather useless. Install the Qt4 development package or alternatively you can also configure with: --disable-qt4 --disable-skins2.])
  ], [
    enable_skins2="no"
    AC_MSG_WARN([The skins2 module depends on the Qt4 interface, Qt4 is not built so skins2 is disabled.])
  ])
])

dnl
dnl Skins2 module
dnl
AC_ARG_ENABLE(skins2,
  [AS_HELP_STRING([--enable-skins2], [skins interface module (default auto)])])
AS_IF([test "${enable_skins2}" != "no"], [
  have_skins_deps="yes"

  dnl Win32
  AS_IF([test "${SYS}" = "mingw32"], [
    VLC_ADD_CPPFLAGS([skins2],[-U_OFF_T_ -U_off_t -DWIN32_SKINS])
    VLC_ADD_LIBS([skins2],[-lgdi32 -lole32 -luuid -lmsimg32])
  dnl MacOS
  ], [test "${SYS}" = "darwin"], [
    VLC_ADD_CPPFLAGS([skins2],[ -DMACOSX_SKINS])
    VLC_ADD_LIBS([skins2],[-Wl,-framework,Carbon])
  dnl OS/2
  ], [test "${SYS}" = "os2"], [
    VLC_ADD_CPPFLAGS([skins2],[ -DOS2_SKINS])
  dnl Linux/Unix
  ], [
    PKG_CHECK_MODULES([XPM], [xpm],, [have_skins_deps="no"])
    PKG_CHECK_MODULES([XINERAMA], [xinerama],, [have_skins_deps="no"])
    PKG_CHECK_MODULES([XEXT], [xext],, [have_skins_deps="no"])
    VLC_ADD_CPPFLAGS([skins2],[${X_CFLAGS} ${XEXT_CFLAGS} ${XPM_CFLAGS} -DX11_SKINS])
    VLC_ADD_LIBS([skins2],[${X_LIBS} ${X_PRE_LIBS} ${XEXT_LIBS} ${XPM_LIBS} ${XINERAMA_LIBS} -lX11])
  ])

  dnl for All OSes
  VLC_ADD_CXXFLAGS([skins2],[-O2 -fno-rtti])

  dnl we need freetype
  AS_IF([test "${have_freetype}" != "yes"], [
    have_skins_deps="no"
  ])

  AS_IF([test "${have_skins_deps}" = "no"], [
    AS_IF([test "x${enable_skins2}" = "x"], [
      AC_MSG_WARN([Skins2 interface disabled due to missing dependencies.])
    ], [
      AC_MSG_ERROR([Skins2 interface requires FreeType, libxpm, libxext and libxinerama])
    ])
    enable_skins2="no"
  ], [
    VLC_ADD_PLUGIN([skins2])
    ALIASES="${ALIASES} svlc"
    enable_skins2="yes"
  ])
])
AM_CONDITIONAL(BUILD_SKINS, [test "${enable_skins2}" = "yes"])

AC_ARG_ENABLE(libtar,
  [  --enable-libtar         libtar support for skins2 (default auto)])
AS_IF([test "${enable_skins2}" = "yes" && test "${enable_libtar}" != "no"], [
  AC_CHECK_HEADERS(libtar.h, [
    VLC_ADD_LIBS([skins2],[-ltar])
  ])
])

dnl
dnl  MacOS X gui module
dnl
AC_ARG_ENABLE(macosx,
  [  --enable-macosx         Mac OS X gui support (default enabled on Mac OS X)])
if test "x${enable_macosx}" != "xno" -a "${SYS}" = "darwin"
then
  VLC_ADD_LIBS([macosx], [-Wl,-framework,Cocoa -Wl,-framework,Carbon -Wl,-framework,CoreServices])
  VLC_ADD_OBJCFLAGS([macosx], [-fobjc-exceptions] )
  VLC_ADD_PLUGIN([macosx])

  VLC_ADD_LIBS([macosx], [-Wl,-framework,QTKit -Wl,-framework,IOKit -Wl,-framework,AddressBook -Wl,-framework,WebKit -Wl,-framework,CoreAudio -Wl,-framework,SystemConfiguration -Wl,-framework,ScriptingBridge])

  if test ! -d ${CONTRIB_DIR}/Sparkle.framework
  then
    AC_MSG_ERROR([Sparkle framework is required and was not found in ${CONTRIB_DIR}])
  fi
  VLC_ADD_LIBS([macosx], [-F${CONTRIB_DIR} -Wl,-framework,Sparkle])
  VLC_ADD_OBJCFLAGS([macosx], [-F${CONTRIB_DIR}])

  if test ! -d ${CONTRIB_DIR}/BGHUDAppKit.framework
  then
    AC_MSG_ERROR([BGHUDAppKit framework is required and was not found in ${CONTRIB_DIR}])
  fi
  VLC_ADD_LIBS([macosx], [-F${CONTRIB_DIR} -Wl,-framework,BGHUDAppKit])
  VLC_ADD_OBJCFLAGS([macosx], [-F${CONTRIB_DIR}])
fi
AM_CONDITIONAL(ENABLE_MACOSX_UI, [test "$enable_macosx" != "no"])

dnl
dnl  Minimal Mac OS X module
dnl
AC_ARG_ENABLE(minimal-macosx,
  [  --enable-minimal-macosx Minimal Mac OS X support (default disabled)])
if test "${enable_minimal_macosx}" = "yes" -a "${SYS}" = "darwin"
then
  VLC_ADD_LIBS([minimal_macosx], [-Wl,-framework,Cocoa])
  VLC_ADD_OBJCFLAGS([minimal_macosx], [-fobjc-exceptions] )
  VLC_ADD_PLUGIN([minimal_macosx])
fi
AM_CONDITIONAL(ENABLE_MINIMAL_MACOSX, [test "$enable_minimal_macosx" != "no"])

dnl
dnl  MacOS X dialog provider
dnl
AC_ARG_ENABLE(macosx-dialog-provider,
  [  --enable-macosx-dialog-provider Mac OS X dialog module (default enabled on Mac OS X)])
if test "x${enable_macosx_dialog_provider}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_dialog_provider}" = "yes")
then
  VLC_ADD_LIBS([macosx_dialog_provider],[-Wl,-framework,Cocoa])
  VLC_ADD_PLUGIN([macosx_dialog_provider])
fi
AM_CONDITIONAL(ENABLE_MACOSX_DIALOG_PROVIDER, [test "$enable_macosx_dialog_provider" != "no"])

dnl
dnl  ncurses module
dnl
AC_ARG_ENABLE(ncurses,
[AS_HELP_STRING([--disable-ncurses],[ncurses text-based interface (default auto)])])
AS_IF([test "${enable_ncurses}" != "no"] ,[
  PKG_CHECK_MODULES([NCURSES], [ncursesw], [
    VLC_ADD_PLUGIN([ncurses])
    VLC_ADD_CFLAGS([ncurses],[${NCURSES_CFLAGS}])
    VLC_ADD_LIBS([ncurses],[${NCURSES_LIBS}])
    ALIASES="${ALIASES} nvlc"
  ], [
    AS_IF([test -n "${enable_ncurses}"], [
      AC_MSG_ERROR([${NCURSES_PKG_ERRORS}.])
    ])
  ])
])

dnl
dnl  Lirc plugin
dnl
AC_ARG_ENABLE(lirc,
  [  --enable-lirc           lirc support (default disabled)])
if test "${enable_lirc}" = "yes"
then
  AC_CHECK_HEADER(lirc/lirc_client.h, AC_CHECK_LIB(lirc_client, lirc_init, have_lirc="true", have_lirc="false"),have_lirc="false")
  if test "${have_lirc}" = "true"
  then
    VLC_ADD_PLUGIN([lirc])
    VLC_ADD_LIBS([lirc],[-llirc_client])
  fi
fi

EXTEND_HELP_STRING([Visualisations and Video filter plugins:])
dnl
dnl  goom visualization plugin
dnl
PKG_ENABLE_MODULES_VLC([GOOM], [], [libgoom2], [goom visualization plugin], [auto])

dnl
dnl libprojectM visualization plugin
dnl
AC_ARG_ENABLE(projectm,
  [  --enable-projectm       projectM visualization plugin (default enabled)])
AS_IF([test "${enable_projectm}" != "no"],
  [
    PKG_CHECK_MODULES(PROJECTM, libprojectM,
    [
      VLC_ADD_PLUGIN([projectm])
      PKG_CHECK_EXISTS([libprojectM >= 2.0.0],
        [ AC_DEFINE([HAVE_PROJECTM2], 1, [Define to 1 if using libprojectM 2.x]) ],
        [ AC_MSG_WARN( [Using libprojectM version 1] )
      ])
    ],[
      AC_MSG_WARN([${PROJECTM_PKG_ERRORS}.])
    ])
  ])

dnl
dnl Vovoid VSXu visualization plugin
dnl
AC_ARG_ENABLE(vsxu,
  [  --enable-vsxu           Vovoid VSXu visualization plugin (default auto)])
AS_IF([test "${enable_vsxu}" != "no"],
  [
    PKG_CHECK_MODULES(VSXU, libvsxu,
    [
      VLC_ADD_PLUGIN([vsxu])
      VLC_ADD_CXXFLAGS([vsxu],[$VSXU_CFLAGS])
      VLC_ADD_LIBS([vsxu],[$VSXU_LIBS])
    ],[
      AC_MSG_WARN([${VSXU_PKG_ERRORS}.])
    ])
  ])

dnl
dnl  AtmoLight (homemade Philips Ambilight clone)
dnl
AC_ARG_ENABLE(atmo,
AS_HELP_STRING([--disable-atmo],[AtmoLight (homemade Philips Ambilight clone)
                (default enabled)]),, [enable_atmo="yes"])
AS_IF([test "${enable_atmo}" != no], [
  AS_IF([test "${SYS}" = "mingw32" -o "${SYS}" = "linux"], [
    AC_LANG_PUSH(C  )
    VLC_ADD_PLUGIN([atmo])
    AC_LANG_POP(C  )
  ])
])

dnl
dnl  glSpectrum
dnl
AC_ARG_ENABLE(glspectrum,
  [  --enable-glspectrum    3D OpenGL spectrum visualization (default auto)])
if test "${enable_glspectrum}" != "no" && test "${have_gl}" = "yes"
then
    VLC_ADD_PLUGIN([glspectrum])
    VLC_ADD_LIBS([glspectrum],[$GL_LIBS])
fi

EXTEND_HELP_STRING([Service Discovery plugins:])
dnl
dnl  Bonjour services discovery
PKG_ENABLE_MODULES_VLC([BONJOUR], [], [avahi-client >= 0.6], [Bonjour services discovery], [auto])

dnl
dnl  libudev services discovery
PKG_ENABLE_MODULES_VLC([UDEV], [], [libudev >= 142], [Linux udev services discovery], [auto])

dnl
dnl MTP devices services discovery
PKG_ENABLE_MODULES_VLC([MTP], [mtp access_mtp], [libmtp >= 1.0.0], [MTP devices support], [auto])

dnl
dnl UPnP Plugin (Intel SDK)
dnl
PKG_ENABLE_MODULES_VLC([UPNP], [upnp], [libupnp], [Intel UPNP SDK],[auto])

EXTEND_HELP_STRING([Misc options:])

dnl
dnl  libxml2 module
dnl
PKG_ENABLE_MODULES_VLC([LIBXML2], [xml], [libxml-2.0 >= 2.5], [libxml2 support],[auto])


dnl
dnl libgcrypt
dnl
AC_ARG_ENABLE(libgcrypt,
  [  --disable-libgcrypt     gcrypt support (default enabled)])
AS_IF([test "${enable_libgcrypt}" != "no"], [
  AC_CHECK_DECL([GCRYCTL_SET_THREAD_CBS], [
    libgcrypt-config --version >/dev/null || \
        AC_MSG_ERROR([gcrypt.h present but libgcrypt-config could not be found])
    AC_CHECK_LIB(gcrypt, gcry_control, [
      have_libgcrypt="yes"
      GCRYPT_CFLAGS="`libgcrypt-config --cflags`"
      GCRYPT_LIBS="`libgcrypt-config --libs`"
    ], [
      AC_MSG_ERROR([libgcrypt not found. Install libgcrypt or use --disable-libgcrypt. Have a nice day.])
    ], [`libgcrypt-config --libs`])
  ], [
    AC_MSG_ERROR([libgcrypt version 1.1.94 or higher not found. Install libgcrypt or use --disable-libgcrypt. Have a nice day.])
  ], [#include <gcrypt.h>]
  )
])

AC_SUBST(GCRYPT_CFLAGS)
AC_SUBST(GCRYPT_LIBS)
AM_CONDITIONAL([HAVE_GCRYPT], [test "${have_libgcrypt}" = "yes"])

dnl
dnl TLS/SSL
dnl
AC_ARG_ENABLE(gnutls,
  [  --enable-gnutls         GNU TLS TLS/SSL support (default enabled)])
AS_IF([test "${enable_gnutls}" != "no"], [
  PKG_CHECK_MODULES(GNUTLS, [gnutls >= 3.0.20], [
    VLC_ADD_PLUGIN([gnutls])
  ], [
    AS_IF([test -n "${enable_gnutls}"], [
      AC_MSG_ERROR([${GNUTLS_PKG_ERRORS}.)])
    ])
  ])
])


dnl
dnl Taglib plugin
dnl
AC_ARG_ENABLE(taglib,
  [AS_HELP_STRING([--disable-taglib],
    [do not use TagLib (default enabled)])])
AS_IF([test "${enable_taglib}" != "no"], [
  PKG_CHECK_MODULES(TAGLIB, taglib >= 1.6.1, [
    VLC_ADD_PLUGIN([taglib])
  ], [
    AC_MSG_WARN([${TAGLIB_PKG_ERRORS}.])])
])


dnl
dnl update checking system
dnl
AC_ARG_ENABLE(update-check,
  [  --enable-update-check   update checking system (default disabled)])
if test "${enable_update_check}" = "yes"
then
  if test "${have_libgcrypt}" != "yes"
  then
    AC_MSG_ERROR([libgcrypt is required for update checking system])
  fi
  VLC_ADD_LIBS([libvlccore], [${GCRYPT_LIBS}])
  VLC_ADD_CFLAGS([libvlccore], [${GCRYPT_CFLAGS}])
  AC_DEFINE([UPDATE_CHECK], 1, [Define if you want to use the VLC update mechanism])
fi

dnl
dnl Growl notification plugin
dnl
AC_ARG_ENABLE(growl,
  [  --enable-growl          growl notification plugin (default disabled)],,
  [enable_growl=no])
AS_IF([test "${enable_growl}" != "no"], [
    AC_CHECK_HEADERS(${CONTRIB_DIR}/Growl.framework/Versions/A/Headers/Growl.h, [
      VLC_ADD_PLUGIN([growl])
      VLC_ADD_LIBS([growl], [-F${CONTRIB_DIR} -Wl,-framework,Growl,-framework,Foundation])
      VLC_ADD_OBJCFLAGS([growl], [-F${CONTRIB_DIR}])
      VLC_ADD_OBJCFLAGS([growl], [-fobjc-exceptions] )
    ])
  ]
)

dnl
dnl Libnotify notification plugin
dnl
PKG_ENABLE_MODULES_VLC([NOTIFY], [], [libnotify gtk -2.0], [libnotify notification], [auto])

dnl
dnl  Endianness check
dnl
AC_C_BIGENDIAN
AS_IF([test "${ac_cv_c_bigendian}" = "yes"], [
  DEFS_BIGENDIAN="-DWORDS_BIGENDIAN=1"
], [
  DEFS_BIGENDIAN=""
])
AC_SUBST(DEFS_BIGENDIAN)

dnl
dnl Where to install KDE solid .desktop
dnl
AC_ARG_VAR([KDE4_CONFIG], [kde4-config utility])
AS_IF([test "x$KDE4_CONFIG" = "x"], [
  KDE4_CONFIG="kde4-config"
])

AC_ARG_WITH(kde-solid,
  AS_HELP_STRING([--with-kde-solid=PATH],
                 [KDE Solid actions directory (auto)]),, [

if test "${SYS}" != "mingw32" -a "${SYS}" != "darwin" ; then
  with_kde_solid="yes"
fi
])
soliddatadir=""
AS_IF([test "${with_kde_solid}" != "no"], [
  AS_IF([test "${with_kde_solid}" = "yes"], [
    kde4datadir="`${KDE4_CONFIG} --install data`"
    AS_IF([test "x$kde4datadir" = "x"], [kde4datadir='${datadir}/kde4/apps'])
    soliddatadir="${kde4datadir}/solid/actions"
  ], [
    soliddatadir="${with_kde_solid}"
  ])
])
AC_SUBST(soliddatadir)
AM_CONDITIONAL(KDE_SOLID, [test "x${soliddatadir}" != "x"])

EXTEND_HELP_STRING([Components:])

dnl
dnl  the VLC binary
dnl
AC_ARG_ENABLE(vlc,
  [  --enable-vlc            build the VLC media player (default enabled)])
AM_CONDITIONAL(BUILD_VLC, [test "${enable_vlc}" != "no"])

AC_ARG_ENABLE(macosx-vlc-app,
  [  --enable-macosx-vlc-app build the VLC media player (default enabled on Mac OS X)])
AM_CONDITIONAL(BUILD_MACOSX_VLC_APP, [test "${enable_macosx_vlc_app}" != "no" &&
    (test "${SYS}" = "darwin" || test "${enable_macosx_vlc_app}" = "yes") ])

dnl
dnl  Stuff used by the program
dnl
VERSION_MESSAGE="${VERSION} ${CODENAME}"
COPYRIGHT_MESSAGE="Copyright © ${COPYRIGHT_YEARS} the VideoLAN team"
AC_DEFINE_UNQUOTED(VERSION_MESSAGE, "${VERSION_MESSAGE}", [Simple version string])
AC_DEFINE_UNQUOTED(COPYRIGHT_MESSAGE, "${COPYRIGHT_MESSAGE}", [Copyright string])
AC_DEFINE_UNQUOTED(COPYRIGHT_YEARS, "${COPYRIGHT_YEARS}", [The copyright years])
AC_DEFINE_UNQUOTED(CONFIGURE_LINE, "${CONFIGURE_LINE}", [The ./configure command line])
AC_DEFINE_UNQUOTED(PACKAGE_VERSION_MAJOR,${VERSION_MAJOR}, [version major number])
AC_DEFINE_UNQUOTED(PACKAGE_VERSION_MINOR,${VERSION_MINOR}, [version minor number])
AC_DEFINE_UNQUOTED(PACKAGE_VERSION_REVISION,${VERSION_REVISION}, [version revision number])
AC_DEFINE_UNQUOTED(PACKAGE_VERSION_EXTRA,${VERSION_EXTRA}, [version extra number])
AC_DEFINE_UNQUOTED(PACKAGE_VERSION_DEV,"${VERSION_DEV}", [version development string])
AC_SUBST(COPYRIGHT_MESSAGE)
AC_SUBST(VERSION_MESSAGE)
AC_SUBST(VERSION_MAJOR)
AC_SUBST(VERSION_MINOR)
AC_SUBST(VERSION_REVISION)
AC_SUBST(VERSION_EXTRA)
AC_SUBST(COPYRIGHT_YEARS)
AC_DEFINE_UNQUOTED(VLC_COMPILE_BY, "`whoami|sed -e 's/\\\/\\\\\\\/g'`", [user who ran configure])
AC_DEFINE_UNQUOTED(VLC_COMPILE_HOST, "`hostname -f 2>/dev/null || hostname`", [host which ran configure])
AC_DEFINE_UNQUOTED(VLC_COMPILER, "`$CC -v 2>&1 | tail -n 1 | sed -e 's/ *$//'`", [compiler])
dnl
dnl  Handle substvars that use $(top_srcdir)
dnl
CPPFLAGS="-I\$(top_srcdir)/include -I\$(top_builddir)/include ${CPPFLAGS}"

dnl
dnl  Configuration is finished
dnl
AC_SUBST(SYS)
AC_SUBST(ARCH)
AC_SUBST(ALIASES)
AC_SUBST(ASM)
AC_SUBST(MOC)
AC_SUBST(RCC)
AC_SUBST(UIC)
AC_SUBST(WINDRES)
AC_SUBST(WINE_SDK_PATH)
AC_SUBST(LIBEXT)
AC_SUBST(AM_CPPFLAGS)
AC_SUBST(MACOSX_DEPLOYMENT_TARGET)
AC_SUBST(FILE_LIBVLCCORE_DLL)
AC_SUBST(FILE_LIBVLC_DLL)

AC_CONFIG_FILES([
  Makefile
  doc/Makefile
  modules/Makefile
  m4/Makefile
  po/Makefile.in
  share/Makefile
  compat/Makefile
  src/Makefile
  lib/Makefile
  bin/Makefile
  test/Makefile
  modules/access_output/Makefile
  modules/audio_filter/Makefile
  modules/control/Makefile
  modules/gui/Makefile
  modules/gui/macosx/Makefile
  modules/gui/minimal_macosx/Makefile
  modules/gui/macosx_dialog_provider/Makefile
  modules/gui/qt4/Makefile
  modules/gui/skins2/Makefile
  modules/misc/Makefile
  modules/mux/Makefile
  modules/packetizer/Makefile
  modules/stream_out/Makefile
  modules/text_renderer/Makefile
  modules/video_filter/Makefile
  modules/video_output/Makefile
  modules/visualization/Makefile
  modules/hw/vdpau/Makefile
])

AM_COND_IF([HAVE_WIN32], [
  AC_CONFIG_FILES([
    extras/package/win32/NSIS/spad.nsi
    extras/package/win32/NSIS/vlc.win32.nsi
    extras/package/win32/msi/config.wxi
  ])
])

AM_COND_IF([HAVE_DARWIN], [
  AC_CONFIG_FILES([
    extras/package/macosx/Info.plist
    extras/package/macosx/Resources/English.lproj/InfoPlist.strings
  ])
])

dnl Generate makefiles
AC_OUTPUT

dnl Do we have to use make or gmake ?
if make --version 2>&1|grep -q GNU
then
    # GNU make, all seems good
    MAKE=make
else
    # Known GNU make alias (on BSD)
    MAKE=gmake
fi
dnl Shortcut to nice compile message
if test -n $SHELL; then
  SHELL=${CONFIG_SHELL-/bin/sh}
fi
rm -f compile
echo "#! $SHELL
rm -f .error\$\$
ERROR=0
export PATH=\"$PATH\" LANG=C
($MAKE V=1 \$@ 2>&1 || touch .error\$\$)| `sed -ne \"s/^top_srcdir *= *//p\" < Makefile`/extras/buildsystem/make.pl
test -f .error\$\$ && ERROR=1
rm -f .error\$\$
exit \$ERROR" >compile
chmod a x compile

echo "
libvlc configuration
--------------------
version               : ${VERSION}
system                : ${SYS}
architecture          : ${ARCH}
optimizations         : ${enable_optimizations}"
if test "${enable_vlc}" != "no"; then
echo "vlc aliases           :${ALIASES}"
else
echo "build vlc executable  : no"
fi
echo "
To build vlc and its plugins, type \`$MAKE', or \`./compile' if you like nice colors."