configure.ac 170 KB
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dnl Autoconf settings for vlc
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AC_COPYRIGHT([Copyright 2002-2009 the VideoLAN team])

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AC_INIT(vlc, 1.1.0-git)
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VERSION_MAJOR="1"
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VERSION_MINOR="1"
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VERSION_REVISION="0"
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VERSION_EXTRA="-git"
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PKGDIR="vlc"
AC_SUBST(PKGDIR)
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CONFIGURE_LINE="`echo "$0 $ac_configure_args" | sed -e 's/\\\/\\\\\\\/g'`"
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CODENAME="The Luggage"
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COPYRIGHT_YEARS="1996-2009"
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AC_PREREQ(2.59c)
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AC_CONFIG_SRCDIR(src/libvlc.c)
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AC_CONFIG_AUX_DIR(autotools)
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AC_CONFIG_MACRO_DIR(m4)
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AC_CONFIG_LIBOBJ_DIR(compat)
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AC_CANONICAL_BUILD
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AC_CANONICAL_HOST
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AM_INIT_AUTOMAKE(tar-ustar)
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AM_CONFIG_HEADER(config.h)

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# Disable with "./configure --disable-silent-rules" or "make V=1"
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])


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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"],
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    [enable_maintainer_mode="yes"])
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AM_MAINTAINER_MODE

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

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dnl
dnl  Deprecated options
dnl  to notify packagers that stuff has changed
dnl
AC_ARG_ENABLE(python-bindings,
  [  --enable-python-bindings Always fails for historical reasons)],,
  [enable_python_bindings="no"])
AS_IF([test "${enable_python_bindings}" != "no"], [
  AC_MSG_ERROR([Python bindings are now built from a separate source package])
])

AC_ARG_ENABLE(java-bindings,
  [  --enable-java-bindings  Always fails for historical reasons],,
  [enable_java_bindings="no"])
AS_IF([test "${enable_java_bindings}" != "no"], [
  AC_MSG_ERROR([Java bindings are now built from a separate source package])
])

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dnl
dnl  Save *FLAGS
dnl
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VLC_SAVE_FLAGS
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dnl
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dnl Check for tools
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dnl
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AC_PROG_CC_C99
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AC_USE_SYSTEM_EXTENSIONS
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AC_DEFINE([_FORTIFY_SOURCE], 2, [Define to '2' to get glibc warnings.])
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AM_PROG_CC_C_O
AC_PROG_CXX
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AC_PROG_CPP
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AC_PROG_OBJC
_AM_DEPENDENCIES([OBJC])
AC_PROG_EGREP
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AC_PROG_MAKE_SET
AC_PROG_INSTALL
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AM_PROG_AS
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dnl Find the right ranlib, even when cross-compiling
AC_CHECK_TOOL(RANLIB, ranlib, :)
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AC_CHECK_TOOL(STRIP, strip, :)
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AC_CHECK_TOOL(AR, ar, :)
AC_CHECK_TOOL(LD, ld, :)
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AC_CHECK_TOOL(DLLTOOL, dlltool, :)
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dnl Check for compiler properties
AC_C_CONST
AC_C_INLINE
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AC_C_RESTRICT
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dnl Allow binary package maintainer to pass a custom string to avoid
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dnl cache problem
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AC_ARG_WITH(binary-version,
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	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])
      ])


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dnl
dnl  Check for the contrib directory
dnl
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AC_ARG_WITH(contrib,
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    [  --without-contrib       do not use the libraries in CONTRIB_DIR],[],[])
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  AS_IF([test "${with_contrib}" != "no"],[
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    AC_ARG_VAR([CONTRIB_DIR], [directory containing pre-built contrib, overriding extras/contrib])
    if test -z "$CONTRIB_DIR"
    then
      topdir="`dirname $0`"
      if test "`echo \"$topdir\" | cut -c 1`" != "/"; then
         topdir="`pwd`/$topdir"
      fi
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      CONTRIB_DIR=${topdir}/extras/contrib/hosts/${host}
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      if ! test -d "$CONTRIB_DIR"
      then
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        gccmachine=`$CC -dumpmachine`
        CONTRIB_DIR=${topdir}/extras/contrib/hosts/${gccmachine}
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      fi
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    fi
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    AC_MSG_CHECKING([for libs in ${CONTRIB_DIR}])
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  AS_IF([test -d ${CONTRIB_DIR}/lib],[
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    AC_MSG_RESULT([yes])
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    AC_SUBST(CONTRIB_DIR)
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    export PATH=${CONTRIB_DIR}/bin:$PATH
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    CPPFLAGS="${CPPFLAGS} -I${CONTRIB_DIR}/include"
    CPPFLAGS_save="${CPPFLAGS_save} -I${CONTRIB_DIR}/include"
    CFLAGS="${CFLAGS} -I${CONTRIB_DIR}/include"
    CFLAGS_save="${CFLAGS_save} -I${CONTRIB_DIR}/include"
    CXXFLAGS="${CXXFLAGS} -I${CONTRIB_DIR}/include"
    CXXFLAGS_save="${CXXFLAGS_save} -I${CONTRIB_DIR}/include"
    OBJCFLAGS="${OBJCFLAGS} -I${CONTRIB_DIR}/include"
    OBJCFLAGS_save="${OBJCFLAGS_save} -I${CONTRIB_DIR}/include"
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    if test $build = $host -o "$PKG_CONFIG_LIBDIR"; then
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        export PKG_CONFIG_PATH=${CONTRIB_DIR}/lib/pkgconfig:$PKG_CONFIG_PATH
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    else
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        export PKG_CONFIG_LIBDIR=${CONTRIB_DIR}/lib/pkgconfig
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    fi
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    LDFLAGS="${LDFLAGS} -L${CONTRIB_DIR}/lib"
    LDFLAGS_save="${LDFLAGS_save} -L${CONTRIB_DIR}/lib"
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    if test -z $with_mozilla_sdk_path; then
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       with_mozilla_sdk_path=${CONTRIB_DIR}/gecko-sdk
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    fi
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    if test -z $with_cyberlink_tree; then
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       with_cyberlink_tree=${CONTRIB_DIR}/src/clinkcc
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    fi
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    if test ".`uname -s`" = ".Darwin"; then
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      export LD_LIBRARY_PATH=${CONTRIB_DIR}/lib:$LD_LIBRARY_PATH
      export DYLD_LIBRARY_PATH=${CONTRIB_DIR}/lib:$DYLD_LIBRARY_PATH
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    elif test ".`uname -s`" = ".BeOS"; then
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      export LIBRARY_PATH=${CONTRIB_DIR}/lib:$LIBRARY_PATH
      export BELIBRARIES=${CONTRIB_DIR}/lib:$BELIBRARIES
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    fi
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    ],[
       AC_MSG_RESULT([no])
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    ])
])
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dnl
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dnl  Set default values
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dnl
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LDFLAGS_vlc="${LDFLAGS}"
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dnl
dnl  Check the operating system
dnl
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case "${host_os}" in
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  "")
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    SYS=unknown
    ;;
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  linux*)
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    SYS=linux
    ;;
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  bsdi*)
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    SYS=bsdi
    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
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    VLC_ADD_LIBS([dvd dvdcss vcd cdda vcdx cddax],[-ldvd])
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    ;;
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  *bsd*)
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    SYS="${host_os}"
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    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
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    case "${host_os}" in
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      freebsd*)
        CPPFLAGS_save="${CPPFLAGS_save} -I/usr/local/include"
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        CPPFLAGS="${CPPFLAGS_save}"
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        LDFLAGS_save="${LDFLAGS_save} -L/usr/local/lib"
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        LDFLAGS="${LDFLAGS_save}"
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        ;;
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      openbsd*)
        CPPFLAGS_save="${CPPFLAGS_save} -I/usr/local/include -I/usr/X11R6/include"
        CPPFLAGS="${CPPFLAGS_save}"
        LDFLAGS_save="${LDFLAGS_save} -L/usr/local/lib -L/usr/X11R6/lib/"
        LDFLAGS="${LDFLAGS_save}"
        ;;
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    esac
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    ;;
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  darwin*)
    SYS=darwin
    CFLAGS_save="${CFLAGS_save} -D_INTL_REDIRECT_MACROS"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="${CXXFLAGS_save} -D_INTL_REDIRECT_MACROS"; CXXFLAGS="${CXXFLAGS_save}"
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    OBJCFLAGS_save="${OBJCFLAGS_save} -D_INTL_REDIRECT_MACROS -std=gnu99"; OBJCFLAGS="${OBJCFLAGS_save}"
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    LDFLAGS_save="${LDFLAGS_save} -Wl,-headerpad_max_install_names"; LDFLAGS="${LDFLAGS_save}"
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    VLC_ADD_LDFLAGS([mp4], [-Wl,-framework,IOKit,-framework,CoreFoundation])
    VLC_ADD_LDFLAGS([mkv mp4], [-Wl,-framework,IOKit,-framework,CoreFoundation])
    VLC_ADD_LDFLAGS([vlc],[-Wl,-undefined,dynamic_lookup])
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    VLC_ADD_LDFLAGS([libvlc],[-Wl,-undefined,dynamic_lookup])
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    VLC_ADD_LDFLAGS([avcodec avformat access_avio swscale postproc i420_rgb_mmx x264],[-Wl,-read_only_relocs,suppress])
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    VLC_ADD_CFLAGS([motion],[-fconstant-cfstrings])
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    VLC_ADD_LDFLAGS([libvlccore],[-Wl,-framework,CoreFoundation])
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    VLC_ADD_LDFLAGS([motion],[-Wl,-framework,IOKit,-framework,CoreFoundation])
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    AC_ARG_ENABLE(macosx-defaults,
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      AS_HELP_STRING([--enable-macosx-defaults],[Build the default configuration on Mac OS X (default enabled)]))
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    if test "x${enable_macosx_defaults}" != "xno"
    then
        echo ""
        echo "Building with Mac OS X defaults:"
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        with_macosx_version_min="10.5"
        echo "  Assuming --with-macosx-version-min=10.5"
        with_macosx_sdk="/Developer/SDKs/MacOSX${with_macosx_version_min}.sdk"
        echo "  Assuming --with-macosx-sdk=/Developer/SDKs/MacOSX${with_macosx_version_min}.sdk"
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        build_dir=`pwd`
        echo "  Assuming --prefix=${build_dir}/vlc_install_dir"
        ac_default_prefix="${build_dir}/vlc_install_dir"
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        enable_macosx="yes"
        echo "  Assuming --enable-macosx"
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        enable_faad="yes"
        echo "  Assuming --enable-faad"
        enable_flac="yes"
        echo "  Assuming --enable-flac"
        enable_theora="yes"
        echo "  Assuming --enable-theora"
        enable_shout="yes"
        echo "  Assuming --enable-shout"
        enable_cddax="yes"
        echo "  Assuming --enable-cddax"
        enable_vcdx="yes"
        echo "  Assuming --enable-vcdx"
        enable_caca="yes"
        echo "  Assuming --enable-caca"
        enable_ncurses="yes"
        echo "  Assuming --enable-ncurses"
        enable_twolame="yes"
        echo "  Assuming --enable-twolame"
        enable_realrtsp="yes"
        echo "  Assuming --enable-realrtsp"
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        enable_libass="yes"
        echo "  Assuming --enable-libass"
        enable_asademux="yes"
        echo "  Assuming --enable-asademux"
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        enable_skins2="no"
        echo "  Assuming --disable-skins2"
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        enable_xcb="no"
        echo "  Assuming --disable-xcb"
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    fi
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    dnl
    dnl  Check for Mac OS X SDK settings
    dnl
    AC_ARG_WITH(macosx-sdk,
       [  --with-macosx-sdk=DIR   compile using the SDK in DIR])
    if test "${with_macosx_sdk}" != "" ; then
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        CPP="${CPP} -isysroot ${with_macosx_sdk}"
        CC="${CC} -isysroot ${with_macosx_sdk}"
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        CXX="${CXX} -isysroot ${with_macosx_sdk}"
        OBJC="${OBJC} -isysroot ${with_macosx_sdk}"
        LD="${LD} -syslibroot ${with_macosx_sdk}"
    fi
    AC_ARG_WITH(macosx-version-min,
       [  --with-macosx-version-min=VERSION  compile for MacOSX VERSION and above])
    if test "${with_macosx_version_min}" != "" ; then
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        CPP="${CPP} -mmacosx-version-min=${with_macosx_version_min}"
        CC="${CC} -mmacosx-version-min=${with_macosx_version_min}"
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        CXX="${CXX} -mmacosx-version-min=${with_macosx_version_min}"
        OBJC="${OBJC} -mmacosx-version-min=${with_macosx_version_min}"
        LD="${LD} -macosx_version_min=${with_macosx_version_min}"
        CFLAGS_save="${CFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}"; CFLAGS="${CFLAGS_save}"
        CXXFLAGS_save="${CXXFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}"; CXXFLAGS="${CXXFLAGS_save}"
        OBJCFLAGS_save="${OBJCFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}"; OBJCFLAGS="${OBJCFLAGS_save}"
        MACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}
        export MACOSX_DEPLOYMENT_TARGET
    fi
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    ;;
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  darwin9*)
    if (test ".`uname -p`" = ".i386"); then
        dnl Due to a ld(64) bug in 10.5 we cannot use our mmx code
        dnl without hacking it a lot, we disable mmx and sse.
        dnl (that bug is about ld being unable to handle
        dnl text relocation)
        save_cflags="$CFLAGS"
        CFLAGS="$CFLAGS -dynamiclib -single_module -read_only_relocs suppress"
        AC_TRY_LINK(
            [int a;], [asm("movq _a,%mm0\n");],
            ac_ld_does_not_support_text_reloc=no,
            ac_ld_does_not_support_text_reloc=yes)
        CFLAGS="$save_cflags"

        if test "x$ac_ld_does_not_support_text_reloc" = "xyes"; then
            enable_mmx="no"
            echo "  Assuming --disable-mmx (due to a bug in ld)"
            enable_sse="no"
            echo "  Assuming --disable-sse (due to a bug in ld)"
        fi
    fi
    ;;
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  *mingw32* | *cygwin* | *wince* | *mingwce*)
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    AC_CHECK_TOOL(WINDRES, windres, :)
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    AC_CHECK_TOOL(OBJCOPY, objcopy, :)
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    case "${host_os}" in
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      *wince* | *mingwce* | *mingw32ce*)
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        SYS=mingwce
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        dnl Sadly CeGCC still needs non-wince macros
        AC_DEFINE([_WIN32_WINNT], 0x0501, [Define to '0x0500' for Windows 2000 APIs.])
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        ;;
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      *mingw32*)
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        SYS=mingw32
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        AC_DEFINE([_WIN32_WINNT], 0x0500, [Define to '0x0500' for Windows 2000 APIs.])
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        ;;
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      *cygwin*)
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        dnl Check if we are using the mno-cygwin mode in which case we are
        dnl actually dealing with a mingw32 compiler.
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        AC_DEFINE([_WIN32_WINNT], 0x0500, [Define to '0x0500' for Windows 2000 APIs.])
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        AC_EGREP_CPP(yes,
            [#ifdef WIN32
             yes
             #endif],
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            SYS=mingw32, AC_MSG_ERROR([VLC requires -mno-cygwin]))
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        ;;
    esac

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    if test "${SYS}" = "mingw32"; then
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        # add ws2_32 for closesocket, select, recv
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        VLC_ADD_LIBS([libvlccore],[-lws2_32 -lnetapi32 -lwinmm])
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        VLC_ADD_LDFLAGS([vlc],[-mwindows])
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        VLC_ADD_LIBS([activex mozilla],[-lgdi32])
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        VLC_ADD_LIBS([cdda vcdx cddax sdl_image aout_sdl vout_sdl],[-lwinmm])
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        VLC_ADD_LIBS([access_http access_mms access_udp access_tcp access_ftp access_rtmp access_output_udp access_output_shout access_output_rtmp sap slp oldhttp stream_out_standard stream_out_rtp stream_out_raop vod_rtsp access_realrtsp rtp oldtelnet oldrc netsync gnutls growl_udp flac ts audioscrobbler lua remoteosd zvbi audiobargraph_a],[-lws2_32])
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        VLC_ADD_LIBS([access_file], [-lshlwapi])
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        dnl
        dnl DEP and ASLR options
        dnl
        AC_ARG_ENABLE(peflags,
          [  --enable-peflags          peflags use (default enabled)])
        if test "${enable_peflags}" != "no"
        then
          AC_CHECK_TOOL(PEFLAGS, peflags, :)
        fi
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    fi
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    if test "${SYS}" = "mingwce"; then
        # add ws2 for closesocket, select, recv
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        VLC_ADD_LIBS([libvlccore access_http access_mms access_udp access_tcp access_ftp access_rtmp access_output_udp access_output_rtmp sap oldhttp netsync audioscrobbler growl rtp stream_out_rtp remoteosd ts oldtelnet audiobargraph_a],[-lws2])
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        VLC_ADD_LIBS([libvlccore],[-lmmtimer])
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   fi
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    ;;
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  *nto*)
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    SYS=nto
    ;;
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  solaris*)
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    SYS=solaris
    ;;
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  hpux*)
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    SYS=hpux
    ;;
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  beos)
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    SYS=beos
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    CFLAGS_save="${CFLAGS_save} -Wno-multichar"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="${CXXFLAGS_save} -Wno-multichar"; CXXFLAGS="${CXXFLAGS_save}"
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    VLC_ADD_CXXFLAGS([beos],[])
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    VLC_ADD_LIBS([vlc libvlccore logger],[-lbe])
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    VLC_ADD_LIBS([beos],[-lbe -lmedia -ltranslation -ltracker -lgame])
    VLC_ADD_LIBS([dvdnav dvdread],[-ldl])
    VLC_ADD_LIBS([access_file],[-lpoll])
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    LDFLAGS_save="${LDFLAGS_save} -lintl"; LDFLAGS="${LDFLAGS_save}"
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    dnl Check for BONE
    if test -f /boot/beos/system/lib/libbind.so; then
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        VLC_ADD_LIBS([access_file access_ftp access_mms access_output_udp oldtelnet netsync sap libvlccore growl_udp],[-lbind -lsocket])
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    else
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        VLC_ADD_LIBS([access_file access_ftp access_mms access_output_udp oldtelnet netsync sap libvlccore growl_udp],[-lnet])
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    fi
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    dnl Ugly check for Zeta
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    if test -f /boot/beos/system/lib/libzeta.so; then
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        VLC_ADD_LIBS([beos],[-lzeta])
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    fi
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    ;;
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  *)
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    SYS="${host_os}"
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    ;;
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esac
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AM_CONDITIONAL(HAVE_BEOS, test "${SYS}" = "beos")
AM_CONDITIONAL(HAVE_DARWIN, test "${SYS}" = "darwin")
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AM_CONDITIONAL(HAVE_LINUX, [test "${SYS}" = "linux"])
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AM_CONDITIONAL(HAVE_WIN32, test "${SYS}" = "mingw32")
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AM_CONDITIONAL(HAVE_WINCE, test "${SYS}" = "mingwce")
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AM_CONDITIONAL(USE_PEFLAGS, [test "${enable_peflags}" = "yes"])
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dnl
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dnl Sadly autoconf doesn't think about testing foo.exe when ask to test
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dnl for program foo on win32

case "${build_os}" in
    cygwin|msys)
        ac_executable_extensions=".exe"
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    ;;
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    *)
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    ;;
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esac

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dnl
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dnl  Libtool
dnl  It's very bad, but our former custom system was worst
dnl  -- Courmisch
dnl
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dnl override platform specific check for dependent libraries
dnl otherwise libtool linking of shared libraries will
dnl fail on anything other than pass_all.
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AC_CACHE_VAL(lt_cv_deplibs_check_method,
    [lt_cv_deplibs_check_method=pass_all])
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AC_DISABLE_STATIC
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dnl AC_DISABLE_FAST_INSTALL
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AC_LIBTOOL_DLOPEN
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AC_LIBTOOL_WIN32_DLL
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m4_undefine([AC_PROG_F77])
m4_defun([AC_PROG_F77],[])
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AC_PROG_LIBTOOL

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m4_undefine([AC_DEPLIBS_CHECK_METHOD])
m4_defun([AC_DEPLIBS_CHECK_METHOD],[])

lt_cv_deplibs_check_method=pass_all

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AS_IF([test "${enable_shared}" = "no"], [
  AC_MSG_ERROR([VLC is based on plugins. Shared libraries cannot be disabled.])
])
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dnl
dnl Gettext stuff
dnl
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AM_GNU_GETTEXT_VERSION([0.17])
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AM_GNU_GETTEXT([external])
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VLC_ADD_LIBS([libvlccore vlc], [${LTLIBINTL}])
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dnl
dnl Iconv stuff
dnl
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AM_ICONV
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VLC_ADD_CFLAGS([libvlccore],[${INCICONV}])
VLC_ADD_LIBS([libvlccore],[${LTLIBICONV}])
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dnl Check for broken versions of mingw-runtime compatability library
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AS_IF([test "${SYS}" = "mingw32" -o "${SYS}" = "mingwce"], [
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    AC_MSG_CHECKING(for broken mingw-runtime)
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    AC_PREPROC_IFELSE([
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#include <_mingw.h>
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#if (__MINGW32_MAJOR_VERSION == 3) && (__MINGW32_MINOR_VERSION < 15)
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# error Attempting to use mingw-runtime with broken vsnprintf support
#endif
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], [
        AC_MSG_RESULT([ok])
], [
        AC_MSG_RESULT([present])
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        AC_MSG_ERROR([LibVLC requires mingw-runtime version 3.15 or higher!])
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])
    dnl force use of mingw provided c99 *printf over msvcrt
    CPPFLAGS="${CPPFLAGS} -D__USE_MINGW_ANSI_STDIO=1"
    CPPFLAGS_save="${CPPFLAGS_save} -D__USE_MINGW_ANSI_STDIO=1"
484
])
485

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dnl Check for the need to include the mingwex lib for mingw32
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if test "${SYS}" = "mingw32"
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then
    AC_CHECK_LIB(mingwex,opendir,
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        AC_CHECK_LIB(mingw32,opendir,,
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            [VLC_ADD_LIBS([libvlccore],[-lmingwex])])
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    )
fi

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

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    CFLAGS="${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
fi

dnl Check for fvtable-thunks support for mingw32
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if test "${SYS}" = "mingw32" -a "${CXX}" != ""
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then
AC_LANG_PUSH(C++)
    AC_CACHE_CHECK([if \$CXX accepts -fvtable-thunks],
        [ac_cv_cxx_fvtable_thunks],
        [CXXFLAGS="${CXXFLAGS_save} -Wall -Werror -fvtable-thunks"
         AC_TRY_COMPILE([],,ac_cv_cxx_fvtable_thunks=yes,
                        ac_cv_cxx_fvtable_thunks=no)])
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    if test "${ac_cv_cxx_fvtable_thunks}" = "yes"; then
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        CXXFLAGS_mingw32_special="-fvtable-thunks"
    fi

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    CXXFLAGS_save="${CXXFLAGS_save} ${CXXFLAGS_mingw32_special}"; CXXFLAGS="${CXXFLAGS_save}"
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AC_LANG_POP(C++)
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fi

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dnl
dnl Buggy glibc prevention. Purposedly not cached.
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dnl See sourceware.org bugs 5058 and 5443.
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dnl Ubuntu alone has 20 bug numbers for this...
dnl
AC_MSG_CHECKING(for buggy GNU/libc versions)
AC_PREPROC_IFELSE([
#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])
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  AS_IF([test "x${enable_nls}" != "xno" || test "x${enable_mozilla}" != "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 --disable-mozilla and
be sure to not use LibVLC from other applications/wrappers.])
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  ], [
    AC_DEFINE(DISABLE_BUGGY_GLIBC_CHECK, 1, [Disables runtime check for buggy glibc.])
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  ])
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])

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dnl Plugin compilation stuff

VLC_LIBRARY_SUFFIX

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dnl The -DSYS_FOO flag
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CPPFLAGS_save="${CPPFLAGS_save} -DSYS_`echo ${SYS} | sed -e 's/-.*//' | tr 'abcdefghijklmnopqrstuvwxyz.' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`"; CPPFLAGS="${CPPFLAGS_save}"
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569
dnl Check for system libs needed
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need_libc=false
571

572
dnl Check for usual libc functions
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AC_CHECK_FUNCS([gettimeofday isatty sigrelse getpwuid_r memalign posix_memalign if_nametoindex getenv putenv setenv ctime_r daemon fork lstat posix_fadvise posix_madvise uselocale])
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AC_CHECK_FUNCS(fcntl)
575
AC_REPLACE_FUNCS([asprintf atof atoll getcwd getpid gmtime_r lldiv localtime_r rewind strcasecmp strcasestr strdup strlcpy strncasecmp strndup strnlen strsep strtof strtok_r strtoll vasprintf swab tdestroy])
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AC_CHECK_FUNCS([stricmp strnicmp])
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AC_CHECK_FUNCS(fdatasync,,
  [AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])
])
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dnl Check for non-standard system calls
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AC_CHECK_FUNCS([vmsplice eventfd fstatfs accept4])
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AH_BOTTOM([#include <vlc_fixups.h>])

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AC_CHECK_FUNCS(mmap, [VLC_ADD_PLUGIN([access_mmap])])
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dnl Check for setlocal and langinfo
AC_CHECK_FUNCS(setlocale)
AC_CHECK_HEADERS(langinfo.h)
AC_CHECK_FUNCS(nl_langinfo)

AC_CACHE_CHECK([for nl_langinfo and CODESET], ac_cv_langinfo_codeset,
  [AC_TRY_LINK([#include <langinfo.h>],
    [char* cs = nl_langinfo(CODESET);],
    ac_cv_langinfo_codeset=yes,
    ac_cv_langinfo_codeset=no)
  ])
if test ${ac_cv_langinfo_codeset} = yes; then
  AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
    [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
fi

604
SOCKET_LIBS=""
605
AC_CHECK_FUNCS(connect,,[
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  AC_CHECK_LIB(socket,connect,[
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    VLC_ADD_LIBS([libvlccore cdda cddax],-lsocket)
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    SOCKET_LIBS="-lsocket"
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  ])
])
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AC_SUBST(SOCKET_LIBS)
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AC_CHECK_FUNCS(send,,[
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  AC_CHECK_LIB(socket,send,[
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    VLC_ADD_LIBS([access_http access_mms access_udp access_tcp access_ftp access_rtmp sap access_output_udp access_output_rtmp stream_out_standard growl_udp remoteosd],[-lsocket])
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  ])
])
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dnl Check for socklen_t
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AH_TEMPLATE(socklen_t, [Define to `int' if <sys/socket.h> does not define.])
AC_CACHE_CHECK([for socklen_t in sys/socket.h],
ac_cv_type_socklen_t,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
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[#include <sys/types.h>
#ifdef WIN32
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# include <winsock2.h>
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# include <ws2tcpip.h>
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#else
# include <sys/socket.h>
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#endif]], [[socklen_t len; len = 0;]])],
ac_cv_type_socklen_t=yes,
ac_cv_type_socklen_t=no)])
AS_IF([test "$ac_cv_type_socklen_t" = no],
 [AC_DEFINE(socklen_t, int)])
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dnl Check for struct sockaddr_storage
AH_TEMPLATE(sockaddr_storage, [Define to `sockaddr' if <sys/socket.h> does not define.])
AH_TEMPLATE(ss_family, [Define to `sa_family' if <sys/socket.h> does not define.])
AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_struct_sockaddr_storage,
  [AC_TRY_COMPILE(
    [#include <sys/types.h>
     #if defined( UNDER_CE )
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     # include <winsock2.h>
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     #elif defined( WIN32 )
     # include <winsock2.h>
     #else
     # include <sys/socket.h>
     #endif], [struct sockaddr_storage addr;],
     ac_cv_struct_sockaddr_storage=yes,
     ac_cv_struct_sockaddr_storage=no)])
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AS_IF([test "${ac_cv_struct_sockaddr_storage}" = no], [
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  AC_DEFINE(sockaddr_storage, sockaddr)
  AC_DEFINE(ss_family, sa_family)
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])
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657
dnl getaddrinfo, getnameinfo and gai_strerror check
658
dnl  -lnsl and -lsocket are needed on Solaris;
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dnl  we purposedly make the test fail on Windows
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LIBS_save="${LIBS}"
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AH_TEMPLATE(HAVE_GETADDRINFO, [Define to 1 if you have the `getaddrinfo' function.])
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AC_SEARCH_LIBS([getaddrinfo], [nsl], [AC_DEFINE(HAVE_GETADDRINFO)],, [${SOCKET_LIBS}])
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dnl NOTE: we assume getaddrinfo will be present if getnameinfo or gai_strerro
dnl are
LIBS="${LIBS_gai}"
AC_CHECK_FUNCS([getnameinfo gai_strerror])
LIBS="${LIBS_save}"

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AH_TEMPLATE(HAVE_ADDRINFO, [Define to 1 if <netdb.h> defines `struct addrinfo'.])
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AC_CHECK_TYPES([struct addrinfo],[AC_DEFINE(HAVE_ADDRINFO)],,
[#include <sys/types.h>
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#if defined( WIN32 ) || defined( UNDER_CE )
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# if defined(UNDER_CE) && defined(sockaddr_storage)
#  undef sockaddr_storage
# endif
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# include <winsock2.h>
# include <ws2tcpip.h>
#else
# include <netdb.h>
#endif])
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dnl Check for va_copy
AC_CACHE_CHECK([for va_copy], ac_cv_c_va_copy,
  AC_TRY_LINK(
    [#include <stdarg.h>],
    [va_list ap1, ap2; va_copy(ap1,ap2);],
    [ac_cv_c_va_copy="yes"],
    [ac_cv_c_va_copy="no"]))
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if test "${ac_cv_c_va_copy}" = "yes"; then
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  AC_DEFINE(HAVE_VA_COPY, 1, [Define if <stdarg.h> defines va_copy.])
fi
AC_CACHE_CHECK([for __va_copy], ac_cv_c___va_copy,
  AC_TRY_LINK(
    [#include <stdarg.h>],
    [va_list ap1, ap2; __va_copy(ap1,ap2);],
    [ac_cv_c___va_copy="yes"],
    [ac_cv_c___va_copy="no"]))
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if test "${ac_cv_c___va_copy}" = "yes"; then
700
  AC_DEFINE(HAVE___VA_COPY, 1, [Define if <stdarg.h> defines __va_copy.])
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fi

703
AC_CHECK_FUNCS(inet_aton,,[
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  AC_CHECK_LIB(resolv,inet_aton,[
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    VLC_ADD_LIBS([libvlccore],[-lresolv])
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  ])
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])
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709
dnl Check for getopt (always use builtin one on win32)
710
if test "${SYS}" = "mingw32" -o "${SYS}" = "mingwce"; then
711 712
need_getopt=:
else
713
need_getopt=false
714
AC_CHECK_FUNCS(getopt_long,[AC_DEFINE(HAVE_GETOPT_LONG,1,long getopt support)],
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[ # FreeBSD has a gnugetopt library for this:
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  AC_CHECK_LIB([gnugetopt],[getopt_long],
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    [AC_DEFINE(HAVE_GETOPT_LONG,1,getopt support)
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     VLC_ADD_LIBS([libvlccore],[-lgnugetopt])],
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    [need_getopt=:])])
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fi
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AM_CONDITIONAL(BUILD_GETOPT, ${need_getopt})
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if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
724
AC_TYPE_SIGNAL
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AC_CHECK_LIB(m,cos,[
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  VLC_ADD_LIBS([adjust wave ripple psychedelic gradient a52tofloat32 dtstofloat32 x264 goom visual panoramix rotate noise grain scene kate flac lua chorus_flanger],[-lm])
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])
AC_CHECK_LIB(m,pow,[
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  VLC_ADD_LIBS([avcodec avformat access_avio swscale postproc ffmpegaltivec i420_rgb faad twolame equalizer spatializer param_eq libvlccore freetype mod mpc dmo quicktime realaudio realvideo opengl],[-lm])
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])
AC_CHECK_LIB(m,sqrt,[
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  VLC_ADD_LIBS([headphone_channel_mixer normvol audiobargraph_a speex mono colorthres extract ball],[-lm])
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])
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AC_CHECK_LIB(m,ceil,[
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  VLC_ADD_LIBS([access_imem hotkeys mosaic swscale_omap],[-lm])
736
])
737
AC_CHECK_LIB(m,exp,[
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  VLC_ADD_LIBS([gaussianblur],[-lm])
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])
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AC_CHECK_LIB(m,round,[
  VLC_ADD_LIBS([dbus],[-lm])
])
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AC_CHECK_LIB(m,sqrtf,[
  VLC_ADD_LIBS([x264],[-lm])
745
])
746
fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
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AC_CHECK_LIB(m,lrintf, [
  AC_DEFINE(HAVE_LRINTF, 1, [Define to 1 if you have the lrintf function])
  VLC_ADD_LIBS([skins2],[-lm])
])

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dnl Check for dynamic plugins
ac_cv_have_plugins=no

# HP-UX style
if test "${ac_cv_have_plugins}" = "no"; then
  AC_CHECK_HEADERS(dl.h)
  ac_cv_my_have_shl_load=no
  AC_CHECK_FUNC(shl_load,
   [ac_cv_my_have_shl_load=yes,
    AC_CHECK_LIB(dld, shl_load,
     [ac_cv_my_have_shl_load=yes
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      VLC_ADD_LIBS([libvlccore],[-ldld])])])
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  if test "${ac_cv_my_have_shl_load}" = "yes"; then
    AC_DEFINE(HAVE_DL_SHL_LOAD, 1, [Define if you have the shl_load API])
    ac_cv_have_plugins=yes
  fi
fi

# Win32 style
if test "${ac_cv_have_plugins}" = "no"; then
773
  if test "${SYS}" = "mingw32" ; then
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    AC_CHECK_LIB(kernel32, main,
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     [VLC_ADD_LIBS([libvlccore],[-lkernel32])
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      AC_DEFINE(HAVE_DL_WINDOWS, 1, [Define if you have Windows' LoadLibrary])
      ac_cv_have_plugins=yes])
  fi
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fi

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# WinCE style
if test "${ac_cv_have_plugins}" = "no"; then
  if test "${SYS}" = "mingwce"; then
    AC_DEFINE(HAVE_DL_WINDOWS, 1, [Define if you have Windows' LoadLibrary])
    ac_cv_have_plugins=yes
  fi
fi

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# BeOS style
if test "${ac_cv_have_plugins}" = "no"; then
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  AC_CHECK_HEADERS(image.h)
  AC_CHECK_FUNCS(load_add_on,
   [AC_DEFINE(HAVE_DL_BEOS, 1, [Define if you have the BeOS dl])
    ac_cv_have_plugins=yes])
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fi

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# Only test for dlopen() if the others didn't work
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if test "${ac_cv_have_plugins}" = "no" -o "${SYS}" = "darwin"; then
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  AC_CHECK_HEADERS(dlfcn.h sys/dl.h)
  ac_cv_my_have_dlopen=no
  AC_CHECK_FUNC(dlopen,
    ac_cv_my_have_dlopen=yes,
    AC_CHECK_LIB(dl, dlopen,
      ac_cv_my_have_dlopen=yes
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      VLC_ADD_LIBS([libvlccore realaudio realvideo lua],[-ldl]),
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      AC_CHECK_LIB(svld, dlopen,
        ac_cv_my_have_dlopen=yes
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        VLC_ADD_LIBS([libvlccore],[-lsvld]))))
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  if test "${ac_cv_my_have_dlopen}" = "yes"; then
    AC_DEFINE(HAVE_DL_DLOPEN, 1, [Define if you have the dlopen API])
    ac_cv_have_plugins=yes
  fi
fi

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if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
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816
dnl Check for pthreads - borrowed from XMMS
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THREAD_LIB=error
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if test "${THREAD_LIB}" = "error"; then
819
  AC_CHECK_LIB(pthread,main,THREAD_LIB="-lpthread")
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fi
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if test "${THREAD_LIB}" = "error"; then
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  AC_CHECK_LIB(pthreads,main,THREAD_LIB="-lpthreads")
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fi
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if test "${THREAD_LIB}" = "error"; then
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  AC_CHECK_LIB(c_r,main,THREAD_LIB="-lc_r")
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fi
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if test "${THREAD_LIB}" = "error"; then
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  AC_CHECK_FUNCS(pthread_mutex_lock)
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  THREAD_LIB=""
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fi
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VLC_ADD_LIBS([libvlccore libvlc plugin],[${THREAD_LIB}])
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AC_CHECK_LIB(rt, clock_nanosleep, [
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  VLC_ADD_LIBS([libvlccore],[-lrt])
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  AC_DEFINE(HAVE_CLOCK_NANOSLEEP, 1, [Define to 1 if you have clock_nanosleep.])
], [
  dnl HP/UX port
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  AC_CHECK_LIB(rt,sem_init, [VLC_ADD_LIBS([libvlccore],[-lrt])])
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])
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have_nanosleep=false
AC_CHECK_FUNCS(nanosleep,have_nanosleep=:,[
  AC_CHECK_LIB(rt,nanosleep,
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    [VLC_ADD_LIBS([libvlccore],[-lrt]) have_nanosleep=:],
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    [AC_CHECK_LIB(posix4,nanosleep,
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        [VLC_ADD_LIBS([libvlccore],[-lposix4]) have_nanosleep=:])]
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  )
])
if ${have_nanosleep}; then
  AC_DEFINE(HAVE_NANOSLEEP, 1, [Define if nanosleep is available.])
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fi
853
fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
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dnl Check for misc headers
856
AC_MSG_CHECKING(for strncasecmp in strings.h)
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AC_EGREP_HEADER(strncasecmp,strings.h,[
858
  AC_MSG_RESULT(yes)
859
  AC_DEFINE(STRNCASECMP_IN_STRINGS_H, 1,
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            Define if <strings.h> defines strncasecmp.)],[
  AC_MSG_RESULT(no)])
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dnl Check for headers
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AC_CHECK_HEADERS(getopt.h strings.h locale.h xlocale.h)
AC_CHECK_HEADERS(fcntl.h sys/types.h sys/time.h sys/times.h sys/ioctl.h sys/stat.h sys/mount.h)
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AC_CHECK_HEADERS([arpa/inet.h netinet/in.h netinet/udplite.h sys/eventfd.h])
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AC_CHECK_HEADERS([net/if.h], [], [],
  [
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    #include <sys/types.h>
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    #include <sys/socket.h>
871
  ])
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if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
873
AC_CHECK_HEADERS(machine/param.h sys/shm.h)
874
AC_CHECK_HEADERS([linux/version.h linux/dccp.h scsi/scsi.h linux/magic.h])
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AC_CHECK_HEADERS(syslog.h)
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fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
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AC_HEADER_TIME

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

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dnl Check for poll
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AC_SEARCH_LIBS(poll, [poll], [AC_DEFINE(HAVE_POLL, 1, [Define to 1 if the OS is usabl... err, has poll().])], [
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if test ${SYS} != "mingw32" -a ${SYS} != "mingwce"
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then
    AC_MSG_WARN([Your platform does not support poll(). VLC has it's own poll() implementation, but it is only intended to be used on Windows. VLC might crash or be insecure when you see this message. Either switch to an OS with a proper poll() implementation, or implement one for your OS in VLC])
fi
])