configure.ac.in 96.1 KB
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dnl Autoconf settings for vlc
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AC_INIT(vlc,0.5.2-test2)
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CONFIGURE_LINE="$0 $*"
CODENAME="Natalya"
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AC_PREREQ(2.50)
AC_CONFIG_SRCDIR(src/libvlc.c)
AC_CANONICAL_SYSTEM

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dnl XXX: we don't put any flags here, because automake 1.5 doesn't support
dnl them. And we need the comma otherwize automake will choke on it.
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AM_INIT_AUTOMAKE(vlc,0.5.2-test2)
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AM_CONFIG_HEADER(config.h)

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dnl
dnl  Save *FLAGS
dnl
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CPPFLAGS_save="${CPPFLAGS}"
CFLAGS_save="${CFLAGS}"
CXXFLAGS_save="${CXXFLAGS}"
OBJCFLAGS_save="${OBJCFLAGS}"
LDFLAGS_save="${LDFLAGS}"
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dnl
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dnl Check for tools
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dnl
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_PROG_CPP
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AC_PROG_CXX
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AC_PROG_MAKE_SET
AC_PROG_INSTALL
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dnl AC_PROG_EGREP only exists in autoconf 2.54+, so we use AC_EGREP_CPP right
dnl now otherwise it might be set in an obscure if statement.
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AC_EGREP_CPP(foo,foo)
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dnl AC_PROG_OBJC doesn't seem to exist, this is the KDE workaround
AC_MSG_CHECKING(for an Objective-C compiler)
OBJC="${CXX}"
AC_SUBST(OBJC)
OBJCFLAGS="${CXXFLAGS} -fgnu-runtime -fconstant-string-class=NSConstantString"
AC_SUBST(OBJCFLAGS)
dnl _AM_DEPENDENCIES(OBJC) doesn't work, so hard code OBJCDEPMODE here
#OBJCDEPMODE="depmode=gcc3"
#AC_SUBST(OBJCDEPMODE)
_AM_DEPENDENCIES(OBJC)
AC_MSG_RESULT(not implemented yet)

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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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dnl AM_PROG_LIBTOOL
AC_PROG_INSTALL

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dnl Check for compiler properties
AC_C_CONST
AC_C_INLINE

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dnl
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dnl  Set default values
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dnl
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LDFLAGS_vlc="${LDFLAGS}"
LIBEXT=".so"
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dnl
dnl  Check the operating system
dnl
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case "x${target_os}" in
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  x)
    SYS=unknown
    ;;
  xlinux*)
    SYS=linux
    ;;
  xbsdi*)
    SYS=bsdi
    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
    LDFLAGS_dvd="${LDFLAGS_dvd} -ldvd"
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    LDFLAGS_dvdcss="${LDFLAGS_dvdcss} -ldvd"
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    LDFLAGS_vcd="${LDFLAGS_vcd} -ldvd"
    ;;
  x*bsd*)
    SYS="${target_os}"
    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
    ;;
  xdarwin*)
    SYS=darwin
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    CFLAGS_save="${CFLAGS_save} -no-cpp-precomp -D_INTL_REDIRECT_MACROS"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="${CXXFLAGS_save} -no-cpp-precomp -D_INTL_REDIRECT_MACROS"; CXXFLAGS="${CXXFLAGS_save}"
    OBJCFLAGS_save="${OBJCFLAGS_save} -no-cpp-precomp -D_INTL_REDIRECT_MACROS"; OBJCFLAGS="${OBJCFLAGS_save}"
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    LDFLAGS_vlc="${LDFLAGS_vlc} -all_load"
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    LDFLAGS_ffmpeg="${LDFLAGS_ffmpeg} -all_load"
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    LIBEXT=".dylib"
    ;;
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  x*mingw32* | x*cygwin*)
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    AC_CHECK_TOOL(WINDRES, windres, :)
    LIBEXT=".dll"
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    case "x${target_os}" in
      x*mingw32*)
        SYS=mingw32
        ;;
      x*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, SYS=cygwin)
        ;;
    esac

    if test "x$SYS" = "xmingw32"; then
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        # add ws2_32 for closesocket, select, recv
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        CPPFLAGS_save="${CPPFLAGS_save} -D_OFF_T_ -D_off_t=long"
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        CPPFLAGS="${CPPFLAGS_save}"
        LDFLAGS_vlc="${LDFLAGS_vlc} -lws2_32 -lnetapi32 -mwindows"
        LDFLAGS_ipv4="${LDFLAGS_ipv4} -lws2_32"
        LDFLAGS_ipv6="${LDFLAGS_ipv6} -lws2_32"
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        LDFLAGS_access_http="${LDFLAGS_access_http} -lws2_32"
        LDFLAGS_access_mms="${LDFLAGS_access_mms} -lws2_32"
        LDFLAGS_access_udp="${LDFLAGS_access_udp} -lws2_32"
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        LDFLAGS_access_ftp="${LDFLAGS_access_ftp} -lws2_32"
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        LDFLAGS_access_output_udp="${LDFLAGS_access_output_udp} -lws2_32"
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        LDFLAGS_sap="${LDFLAGS_sap} -lws2_32"
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        LDFLAGS_httpd="${LDFLAGS_httpd} -lws2_32"
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    fi
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    ;;
  x*nto*)
    SYS=nto
    LDFLAGS_x11="${LDFLAGS_x11} -lsocket"
    LDFLAGS_xvideo="${LDFLAGS_xvideo} -lsocket"
    ;;
  xsolaris*)
    SYS=solaris
    ;;
  xhpux*)
    SYS=hpux
    LIBEXT=".sl"
    ;;
  xbeos)
    SYS=beos
    CFLAGS_save="${CFLAGS_save} -Wno-multichar -Wno-ctor-dtor-privacy -Woverloaded-virtual"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="${CXXFLAGS_save} -Wno-multichar -Wno-ctor-dtor-privacy -Woverloaded-virtual"; CXXFLAGS="${CXXFLAGS_save}"
    LDFLAGS_vlc="${LDFLAGS_vlc} -lbe"
    LDFLAGS_plugins="${LDFLAGS_plugins} -nostart"
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    LDFLAGS_beos="${LDFLAGS_beos} -lbe -lmedia -lroot -ltracker -lstdc++.r4 -ltranslation"
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    dnl BONE or not BONE ?
    AC_CHECK_LIB( bind, inet_ntoa,
        [ LDFLAGS_access_mms="${LDFLAGS_access_mms} -lbind"
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          LDFLAGS_ipv4="${LDFLAGS_ipv4} -lbind"
          LDFALGS_httpd="${LDFLAGS_httpd} -lbind"],
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        [])
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    ;;
  x*)
    SYS="${target_os}"
    ;;
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esac
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AM_CONDITIONAL(HAVE_BEOS, test "x${SYS}" = "xbeos")
AM_CONDITIONAL(HAVE_DARWIN, test "x${SYS}" = "xdarwin")
AM_CONDITIONAL(HAVE_WIN32, test "x${SYS}" = "xmingw32")

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dnl
dnl Gettext stuff
dnl
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ALL_LINGUAS="de en_GB fr it ja no ru nl pl sv"
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AM_GNU_GETTEXT_VERSION(0.10.40)
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AM_GNU_GETTEXT
if test "${nls_cv_force_use_gnu_gettext}" = "yes"; then
  AC_DEFINE(HAVE_INCLUDED_GETTEXT, 1, Define if we use the local libintl)
  INCLUDES="${INCLUDES} -I\\\$(top_srcdir)/intl"
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else
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  AC_CHECK_FUNCS(textdomain,,[
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    AC_CHECK_LIB(intl,textdomain,
      LDFLAGS_vlc="${LDFLAGS_vlc} -lintl"
      LDFLAGS_plugins="${LDFLAGS_plugins} -lintl"
    )
  ])
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fi
AM_CONDITIONAL(BUILD_INTL, test "${nls_cv_force_use_gnu_gettext}" = "yes")
XGETTEXT="${XGETTEXT} --keyword=_NS"

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AC_MSG_CHECKING(for suffix of libraries)
AC_MSG_RESULT(${LIBEXT})
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dnl Check for the need to include the mingwex lib for mingw32
if test x$SYS = xmingw32
then
    AC_CHECK_LIB(mingwex,opendir,
        AC_CHECK_LIB(mingw32,opendir,LDFLAGS_vlc="${LDFLAGS_vlc}",
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            [LDFLAGS_vlc="${LDFLAGS_vlc} -lmingwex"
             LDFLAGS_gtk="${LDFLAGS_gtk} -lmingwex"])
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    )
fi

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dnl Check for fnative-struct or mms-bitfields support for mingw32
if test x$SYS = xmingw32
then
    AC_CACHE_CHECK([if \$CC accepts -mms-bitfields],
        [ac_cv_c_mms_bitfields],
        [CFLAGS="${CFLAGS_save} -mms-bitfields"
         AC_TRY_COMPILE([],,ac_cv_c_mms_bitfields=yes, ac_cv_c_mms_bitfields=no)])
    if test x"$ac_cv_c_mms_bitfields" != x"no"; then
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        CFLAGS_save="${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)])
        if test x"$ac_cv_c_fnative_struct" != x"no"; then
            CFLAGS_save="${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
if test x$SYS = xmingw32
then
AC_LANG_PUSH(C++)
    AC_CACHE_CHECK([if \$CXX accepts -fvtable-thunks],
        [ac_cv_cxx_fvtable_thunks],
        [CXXFLAGS="${CXXFLAGS_save} -Wall -Werror -fvtable-thunks"
         AC_TRY_COMPILE([],,ac_cv_cxx_fvtable_thunks=yes,
                        ac_cv_cxx_fvtable_thunks=no)])
    if test x"$ac_cv_cxx_fvtable_thunks" = x"yes"; then
        CXXFLAGS_mingw32_special="-fvtable-thunks"
    fi

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

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dnl Flags for plugin compilation
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case "x${SYS}" in
  xmingw32|xcygwin)
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    CFLAGS_pics="${CFLAGS_pics} ${CFLAGS_mingw32_special}"
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    CXXFLAGS_pics="${CXXFLAGS_pics} ${CFLAGS_mingw32_special} ${CXXFLAGS_mingw32_special}"
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    OBJCFLAGS_pics="${OBJCFLAGS_pics} ${CFLAGS_mingw32_special}"
    CFLAGS_plugins="${CFLAGS_plugins} ${CFLAGS_mingw32_special}"
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    CXXFLAGS_plugins="${CXXFLAGS_plugins} ${CFLAGS_mingw32_special} ${CXXFLAGS_mingw32_special}"
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    OBJCFLAGS_plugins="${OBJCFLAGS_plugins} ${CFLAGS_mingw32_special}"
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    ;;
  x*)
    CFLAGS_pics="${CFLAGS_pics} -fPIC"
    CXXFLAGS_pics="${CXXFLAGS_pics} -fPIC"
    OBJCFLAGS_pics="${OBJCFLAGS_pics} -fPIC"
    CFLAGS_plugins="${CFLAGS_plugins} -fPIC"
    CXXFLAGS_plugins="${CXXFLAGS_plugins} -fPIC"
    OBJCFLAGS_plugins="${OBJCFLAGS_plugins} -fPIC"
    LDFLAGS_plugins="${LDFLAGS_plugins} -fPIC"
    ;;
esac
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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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dnl Check for system libs needed
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need_libc=false
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AC_CHECK_FUNCS(gettimeofday select strerror strtod strtol isatty vasprintf swab sigrelse getpwuid memalign posix_memalign gethostbyname2 atoll getenv putenv setenv)

dnl Check for usual libc functions
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AC_CHECK_FUNCS(strdup strndup atof lseek)
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AC_CHECK_FUNCS(strcasecmp,,[AC_CHECK_FUNCS(stricmp)])
AC_CHECK_FUNCS(strncasecmp,,[AC_CHECK_FUNCS(strnicmp)])
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AC_CHECK_FUNCS(connect,,[
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  AC_CHECK_LIB(socket,connect,
    LDFLAGS_ipv4="${LDFLAGS_ipv4} -lsocket"
    LDFLAGS_vlc="${LDFLAGS_vlc} -lsocket"
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)])
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AC_CHECK_FUNCS(send,,[
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  AC_CHECK_LIB(socket,send,
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    LDFLAGS_access_http="${LDFLAGS_access_http} -lsocket"
    LDFLAGS_access_mms="${LDFLAGS_access_mms} -lsocket"
    LDFLAGS_access_udp="${LDFLAGS_access_udp} -lsocket"
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    LDFLAGS_access_ftp="${LDFLAGS_access_ftp} -lsocket"
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    LDFLAGS_sap="${LDFLAGS_sap} -lsocket"
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    LDFLAGS_access_output_udp="${LDFLAGS_access_output_udp} -lsocket"
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)])
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AC_CHECK_FUNCS(gethostbyname,,[
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  AC_CHECK_LIB(nsl,gethostbyname,LDFLAGS_ipv4="${LDFLAGS_ipv4} -lnsl" LDFLAGS_httpd="${LDFLAGS_httpd} -lnsl",[
    AC_CHECK_LIB(bind,gethostbyname,LDFLAGS_ipv4="${LDFLAGS_ipv4} -lbind" LDFLAGS_httpd="${LDFLAGS_httpd} -lbind")])
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])
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have_nanosleep=false
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AC_CHECK_FUNCS(nanosleep,have_nanosleep=:,[
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  AC_CHECK_LIB(rt,nanosleep,
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    [LDFLAGS_vlc="${LDFLAGS_vlc} -lrt"; have_nanosleep=:],
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    [AC_CHECK_LIB(posix4,nanosleep,
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        [LDFLAGS_vlc="${LDFLAGS_vlc} -lposix4"; have_nanosleep=:])]
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  )
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])
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if ${have_nanosleep}; then
  AC_DEFINE(HAVE_NANOSLEEP, 1,
            Define if nanosleep is available.)
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fi
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dnl Check for socklen_t
AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
  [AC_TRY_COMPILE(
     [#include <sys/types.h>
      #include <sys/socket.h>],
     [socklen_t len = 42; return len;],
     ac_cv_type_socklen_t=yes,
     ac_cv_type_socklen_t=no)])
if test x$ac_cv_type_socklen_t != xno; then
  AC_DEFINE(HAVE_SOCKLEN_T, 1,
            Define if <sys/socket.h> defines socklen_t.)
fi

dnl HP/UX port
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AC_CHECK_LIB(rt,sem_init, [LDFLAGS_vlc="${LDFLAGS_vlc} -lrt"])
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AC_CHECK_FUNCS(inet_aton,,[
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  AC_CHECK_LIB(resolv,inet_aton,LDFLAGS_ipv4="${LDFLAGS_ipv4} -lresolv" LDFLAGS_httpd="${LDFLAGS_httpd} -lresolv")
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])
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dnl Check for getopt
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need_getopt=false
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AC_CHECK_FUNCS(getopt_long,[AC_DEFINE(HAVE_GETOPT_LONG,1,long getopt support)],
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[ # FreeBSD has a gnugetopt library for this:
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  AC_CHECK_LIB([gnugetopt],[getopt_long],
    [AC_DEFINE(HAVE_GETOPT_LONG,1,getopt support) LDFLAGS_vlc="${LDFLAGS_vlc} -lgnugetopt"],
    [need_getopt=:])])
AM_CONDITIONAL(BUILD_GETOPT, ${need_getopt})
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AC_TYPE_SIGNAL
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AC_CHECK_LIB(dl,dlopen,LDFLAGS_vlc="${LDFLAGS_vlc} -ldl")
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AC_CHECK_LIB(m,cos,
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  LDFLAGS_imdct="${LDFLAGS_imdct} -lm"
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  LDFLAGS_adjust="${LDFLAGS_adjust} -lm"
  LDFLAGS_distort="${LDFLAGS_distort} -lm"
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  LDFLAGS_a52tofloat32="${LDFLAGS_a52tofloat32} -lm")
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AC_CHECK_LIB(m,pow,
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  LDFLAGS_ffmpeg="${LDFLAGS_ffmpeg} -lm"
  LDFLAGS_imdct="${LDFLAGS_imdct} -lm"
  LDFLAGS_imdct3dn="${LDFLAGS_imdct3dn} -lm"
  LDFLAGS_imdctsse="${LDFLAGS_imdctsse} -lm"
  LDFLAGS_i420_rgb="${LDFLAGS_i420_rgb} -lm"
  LDFLAGS_faad="${LDFLAGS_faad} -lm"
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)
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AC_CHECK_LIB(m,sqrt,
  LDFLAGS_headphone_channel_mixer="${LDFLAGS_headphone_channel_mixer} -lm"
)
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dnl Check for pthreads - borrowed from XMMS
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THREAD_LIB=error
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if test "x${THREAD_LIB}" = "xerror"; then
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  AC_CHECK_LIB(pthread,main,THREAD_LIB="-lpthread")
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fi
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if test "x${THREAD_LIB}" = "xerror"; then
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  AC_CHECK_LIB(pthreads,main,THREAD_LIB="-lpthreads")
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fi
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if test "x${THREAD_LIB}" = "xerror"; 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 "x${THREAD_LIB}" = "xerror"; 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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dnl Check for cthreads under GNU/Hurd for instance
AC_CHECK_LIB(threads,cthread_fork,THREAD_LIB="-lthreads")
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dnl Check for misc headers
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AC_MSG_CHECKING(for pthread_cond_t in pthread.h)
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AC_EGREP_HEADER(pthread_cond_t,pthread.h,[
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  AC_MSG_RESULT(yes)
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  AC_DEFINE(PTHREAD_COND_T_IN_PTHREAD_H, 1,
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            Define if <pthread.h> defines pthread_cond_t.)],[
  AC_MSG_RESULT(no)])

AC_MSG_CHECKING(for pthread_once in pthread.h)
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AC_EGREP_HEADER(pthread_once,pthread.h,[
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  AC_MSG_RESULT(yes)
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  AC_DEFINE(PTHREAD_ONCE_IN_PTHREAD_H, 1,
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            Define if <pthread.h> defines pthread_once.)],[
  AC_MSG_RESULT(no)])

AC_MSG_CHECKING(for strncasecmp in strings.h)
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AC_EGREP_HEADER(strncasecmp,strings.h,[
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  AC_MSG_RESULT(yes)
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  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(signal.h time.h errno.h stdint.h getopt.h strings.h inttypes.h sys/int_types.h)
AC_CHECK_HEADERS(sys/sockio.h fcntl.h sys/types.h sys/time.h sys/times.h sys/ioctl.h sys/stat.h)
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AC_CHECK_HEADERS(dlfcn.h image.h)
AC_CHECK_HEADERS(arpa/inet.h net/if.h netinet/in.h sys/socket.h)
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AC_CHECK_HEADERS(machine/param.h sys/shm.h)
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AC_CHECK_HEADERS(linux/version.h)
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AC_HEADER_TIME

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dnl Check for dirent
need_dirent=false
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AC_CHECK_HEADERS(dirent.h,,[need_dirent=:])
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AM_CONDITIONAL(BUILD_DIRENT, ${need_dirent})

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dnl Mac OS X and other OSes don't have declaration for nanosleep
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AC_MSG_CHECKING(for nanosleep in time.h)
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AC_EGREP_HEADER(nanosleep,time.h,[
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  AC_MSG_RESULT(yes)
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  AC_DEFINE(HAVE_DECL_NANOSLEEP, 1,
            Define if <time.h> defines nanosleep.)
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],[
  AC_MSG_RESULT(no)
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])
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dnl Make sure we have timespecs
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AC_MSG_CHECKING(for timespec in sys/time.h)
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AC_EGREP_HEADER(timespec,sys/time.h,[
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  AC_MSG_RESULT(yes)
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  AC_DEFINE(HAVE_STRUCT_TIMESPEC, 1,
            Define if <sys/time.h> defines struct timespec.)
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],[
  AC_MSG_RESULT(no)
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])
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dnl Check for threads library
AC_CHECK_HEADERS(cthreads.h pthread.h kernel/scheduler.h kernel/OS.h)

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dnl Default X headers and libraries
if test "x${x_includes}" = "xNONE"; then
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  x_includes="/usr/X11R6/include"
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fi
if test "x${x_libraries}" = "xNONE"; then
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  x_libraries="/usr/X11R6/lib"
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fi

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dnl Build the gtk_main plugins?
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NEED_GTK_MAIN=no
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NEED_GNOME_MAIN=no
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dnl build the qte plugin ?
NEED_QTE_MAIN=no

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dnl Check for DPMS
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if test "x${SYS}" != "xmingw32"
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then
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  CPPFLAGS="${CPPFLAGS_save} -I${x_includes}"
  AC_CHECK_HEADERS(X11/extensions/dpms.h, [
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    AC_MSG_CHECKING(for DPMSInfo in X11/extensions/dpms.h)
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    AC_EGREP_HEADER(DPMSInfo,X11/extensions/dpms.h,[
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      AC_MSG_RESULT(yes)
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      AC_DEFINE(DPMSINFO_IN_DPMS_H, 1,
                Define if <X11/extensions/dpms.h> defines DPMSInfo.)
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    ],[
      AC_MSG_RESULT(no)
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    ])
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  ],,[
    #include <X11/Xlib.h>
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  ])
  CPPFLAGS="${CPPFLAGS_save}"
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fi

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dnl Check for ntohl, etc.
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AC_CACHE_CHECK([for ntohl in sys/param.h],
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    [ac_cv_c_ntohl_sys_param_h],
    [CFLAGS="${CFLAGS_save} -Wall -Werror"
     AC_TRY_COMPILE([#include <sys/param.h>],
        [void foo() { int meuh; ntohl(meuh); }],
        ac_cv_c_ntohl_sys_param_h=yes, ac_cv_c_ntohl_sys_param_h=no)])
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if test "x${ac_cv_c_ntohl_sys_param_h}" != "xno"; then
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    AC_DEFINE(NTOHL_IN_SYS_PARAM_H, 1, Define if <sys/param.h> defines ntohl.)
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fi
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dnl Check for inline function size limit
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AC_CACHE_CHECK([if \$CC accepts -finline-limit],
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    [ac_cv_c_inline_limit],
    [CFLAGS="${CFLAGS_save} -finline-limit-30000"
     AC_TRY_COMPILE([],,ac_cv_c_inline_limit=yes, ac_cv_c_inline_limit=no)])
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if test "x${ac_cv_c_inline_limit}" != "xno"; then
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    CFLAGS_save="${CFLAGS_save} -finline-limit-30000"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="${CXXFLAGS_save} -finline-limit-30000"; CXXFLAGS="${CXXFLAGS_save}"
    OBJCFLAGS_save="${OBJCFLAGS_save} -finline-limit-30000"; OBJCFLAGS="${OBJCFLAGS_save}"
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fi
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# XXX: do this with an M4 macro?
#dnl Check for various -W flags
#for flag in "" all unreachable-code conversion sign-compare disabled-optimization
#do
#    AC_CACHE_CHECK([if \$CC accepts -W${flag}],
#        [ac_cv_c_W${flag}],
#        [CFLAGS="-W${flag} ${CFLAGS_save}"
#         AC_TRY_COMPILE([],,ac_cv_c_W${flag}=yes, ac_cv_c_W${flag}=no)])
#    if test "x${ac_cv_c_W${flag}}" != "xno"; then
#        CFLAGS_save="-W${flag} ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
#        CXXFLAGS_save="-W${flag} ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
#        OBJCFLAGS_save="-W${flag} ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
#    fi
#done

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AC_CACHE_CHECK([if \$CC accepts -Wall],
    [ac_cv_c_Wall],
    [CFLAGS="-Wall ${CFLAGS_save}"
     AC_TRY_COMPILE([],,ac_cv_c_Wall=yes, ac_cv_c_Wall=no)])

AC_CACHE_CHECK([if \$CC accepts -Wconversion],
    [ac_cv_c_Wconversion],
    [CFLAGS="-Wconversion ${CFLAGS_save}"
     AC_TRY_COMPILE([],,ac_cv_c_Wconversion=yes, ac_cv_c_Wconversion=no)])

AC_CACHE_CHECK([if \$CC accepts -Wunreachable-code],
    [ac_cv_c_Wunreachable_code],
    [CFLAGS="-Wunreachable-code ${CFLAGS_save}"
     AC_TRY_COMPILE([],,ac_cv_c_Wunreachable_code=yes, ac_cv_c_Wunreachable_code=no)])

AC_CACHE_CHECK([if \$CC accepts -Wsign-compare],
    [ac_cv_c_Wsign_compare],
    [CFLAGS="-Wsign-compare ${CFLAGS_save}"
     AC_TRY_COMPILE([],,ac_cv_c_Wsign_compare=yes, ac_cv_c_Wsign_compare=no)])

AC_CACHE_CHECK([if \$CC accepts -Wdisabled-optimization],
    [ac_cv_c_Wdisabled_optimization],
    [CFLAGS="-Wdisabled-optimization ${CFLAGS_save}"
     AC_TRY_COMPILE([],,ac_cv_c_Wdisabled_optimization=yes, ac_cv_c_Wdisabled_optimization=no)])

AC_CACHE_CHECK([if \$CC accepts -Winline],
    [ac_cv_c_Winline],
    [CFLAGS="-Winline ${CFLAGS_save}"
     AC_TRY_COMPILE([],,ac_cv_c_Winline=yes, ac_cv_c_Winline=no)])

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if test "x${ac_cv_c_Wall}" != "xno"; then
    CFLAGS_save="-Wall ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="-Wall ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
    OBJCFLAGS_save="-Wall ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
fi
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if test "x${ac_cv_c_Wunreachable_code}" != "xno"; then
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#    CFLAGS_save="-Wunreachable-code ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
#    CXXFLAGS_save="-Wunreachable-code ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
#    OBJCFLAGS_save="-Wunreachable-code ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
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    dnl -Wunreachable-code means gcc-3.x, we can use -Wconversion and we can
    dnl activate -Winline for C++, it won't choke on system headers.
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#    if test "x${ac_cv_c_Wconversion}" != "xno"; then
#        CFLAGS_save="-Wconversion ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
#        CXXFLAGS_save="-Wconversion ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
#        OBJCFLAGS_save="-Wconversion ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
#    fi
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    if test "x${ac_cv_c_Winline}" != "xno"; then
        CXXFLAGS_save="-Winline ${CXXFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
    fi

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fi

if test "x${ac_cv_c_Wsign_compare}" != "xno"; then
    CFLAGS_save="-Wsign-compare ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="-Wsign-compare ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
    OBJCFLAGS_save="-Wsign-compare ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
fi

if test "x${ac_cv_c_Wdisabled_optimization}" != "xno"; then
    CFLAGS_save="-Wdisabled-optimization ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="-Wdisabled-optimization ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
    OBJCFLAGS_save="-Wdisabled-optimization ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
fi

if test "x${ac_cv_c_Winline}" != "xno"; then
    CFLAGS_save="-Winline ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
    OBJCFLAGS_save="-Winline ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
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fi

dnl Check for -pipe
AC_CACHE_CHECK([if \$CC accepts -pipe],
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    [ac_cv_c_pipe],
    [CFLAGS="${CFLAGS_save} -pipe"
     AC_TRY_COMPILE([],,ac_cv_c_pipe=yes, ac_cv_c_pipe=no)])
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if test "x${ac_cv_c_pipe}" != "xno"; then
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    CFLAGS_save="${CFLAGS_save} -pipe"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="${CXXFLAGS_save} -pipe"; CXXFLAGS="${CXXFLAGS_save}"
    OBJCFLAGS_save="${OBJCFLAGS_save} -pipe"; OBJCFLAGS="${OBJCFLAGS_save}"
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fi

dnl Check for various optimization flags
AC_CACHE_CHECK([if \$CC accepts -O3],
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    [ac_cv_c_o3],
    [CFLAGS="${CFLAGS_save} -O3"
     AC_TRY_COMPILE([],,ac_cv_c_o3=yes, ac_cv_c_o3=no)])
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if test "x${ac_cv_c_o3}" != "xno"; then
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    CFLAGS_OPTIM="${CFLAGS_OPTIM} -O3"
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fi

AC_CACHE_CHECK([if \$CC accepts -O2],
    [ac_cv_c_o2],
    [CFLAGS="${CFLAGS_save} -O2"
     AC_TRY_COMPILE([],,ac_cv_c_o2=yes, ac_cv_c_o2=no)])
if test "x${ac_cv_c_o2}" != "xno"; then
    if test "x${ac_cv_c_o3}" = "xno"; then
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        CFLAGS_OPTIM="${CFLAGS_OPTIM} -O2"
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    fi
    CFLAGS_NOOPTIM="${CFLAGS_NOOPTIM} -O2"
else
    AC_CACHE_CHECK([if \$CC accepts -O],
        [ac_cv_c_o],
        [CFLAGS="${CFLAGS_save} -O"
         AC_TRY_COMPILE([],,ac_cv_c_o=yes, ac_cv_c_o=no)])
    if test "x${ac_cv_c_o}" != "xno"; then
        if test "x${ac_cv_c_o3}" = "xno"; then
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            CFLAGS_OPTIM="${CFLAGS_OPTIM} -O"
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	fi
        CFLAGS_NOOPTIM="${CFLAGS_NOOPTIM} -O"
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    fi
fi

dnl Check for -ffast-math
AC_CACHE_CHECK([if \$CC accepts -ffast-math],
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    [ac_cv_c_fast_math],
    [CFLAGS="${CFLAGS_save} -ffast-math"
     AC_TRY_COMPILE([],,ac_cv_c_fast_math=yes, ac_cv_c_fast_math=no)])
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if test "x${ac_cv_c_fast_math}" != "xno"; then
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    CFLAGS_OPTIM="${CFLAGS_OPTIM} -ffast-math"
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fi

dnl Check for -funroll-loops
AC_CACHE_CHECK([if \$CC accepts -funroll-loops],
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    [ac_cv_c_unroll_loops],
    [CFLAGS="${CFLAGS_save} -funroll-loops"
     AC_TRY_COMPILE([],,ac_cv_c_unroll_loops=yes, ac_cv_c_unroll_loops=no)])
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if test "x${ac_cv_c_unroll_loops}" != "xno"; then
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    CFLAGS_OPTIM="${CFLAGS_OPTIM} -funroll-loops"
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fi

dnl Check for -fomit-frame-pointer
AC_CACHE_CHECK([if \$CC accepts -fomit-frame-pointer],
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    [ac_cv_c_omit_frame_pointer],
    [CFLAGS="${CFLAGS_save} -fomit-frame-pointer"
     AC_TRY_COMPILE([],,ac_cv_c_omit_frame_pointer=yes, ac_cv_c_omit_frame_pointer=no)])
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if test "x${ac_cv_c_omit_frame_pointer}" != "xno"; then
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    CFLAGS_OPTIM_NODEBUG="${CFLAGS_OPTIM_NODEBUG} -fomit-frame-pointer"
    # this plugin does not compile without -fomit-frame-pointer, damn gcc!
    CFLAGS_i420_yuy2_mmx="${CFLAGS_i420_yuy2_mmx} -fomit-frame-pointer"
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fi

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dnl Check for -mdynamic-no-pic
AC_CACHE_CHECK([if \$CC accepts -mdynamic-no-pic],
    [ac_cv_c_dynamic_no_pic],
    [CFLAGS="${CFLAGS_save} -mdynamic-no-pic"
     AC_TRY_COMPILE([],,ac_cv_c_dynamic_no_pic=yes, ac_cv_c_dynamic_no_pic=no)])
if test "x${ac_cv_c_dynamic_no_pic}" != "xno"; then
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    CFLAGS_builtins="${CFLAGS_builtins} -mdynamic-no-pic"
    CFLAGS_libvlc="${CFLAGS_libvlc} -mdynamic-no-pic"
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fi

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dnl Check for Darwin plugin linking flags
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AC_CACHE_CHECK([if \$CC accepts -bundle -undefined error -lcc_dynamic],
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    [ac_cv_ld_darwin],
    [CFLAGS="${CFLAGS_save} -bundle -undefined error -lcc_dynamic"
     AC_TRY_COMPILE([],,ac_cv_ld_darwin=yes, ac_cv_ld_darwin=no)])
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if test "x${ac_cv_ld_darwin}" != "xno"; then
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    LDFLAGS_plugins="${LDFLAGS_plugins} -bundle -undefined error -lcc_dynamic"
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fi
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dnl Check for standard plugin linking flags
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AC_CACHE_CHECK([if \$CC accepts -shared],
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    [ac_cv_ld_plugins],
    [CFLAGS="${CFLAGS_save} -shared"
     AC_TRY_COMPILE([],, ac_cv_ld_plugins=yes, ac_cv_ld_plugins=no)])
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if test "x${ac_cv_ld_plugins}" != "xno"; then
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    LDFLAGS_plugins="${LDFLAGS_plugins} -shared"
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fi
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dnl Check for variadic macros
AC_CACHE_CHECK([for variadic cpp macros],
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    [ac_cv_cpp_variadic_macros],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(
         [#include <stdio.h>
          #define a(b,c...) printf(b,##c)],
         [a("foo");a("%s","bar");a("%s%s","baz","quux");],
         ac_cv_cpp_variadic_macros=yes,
         ac_cv_cpp_variadic_macros=no)])
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if test "x${ac_cv_cpp_variadic_macros}" != "xno"; then
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    AC_DEFINE(HAVE_VARIADIC_MACROS, 1, Support for variadic macros)
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fi

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dnl Checks for __attribute__(aligned()) directive
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
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    [ac_cv_c_attribute_aligned],
    [ac_cv_c_attribute_aligned=0
        CFLAGS="${CFLAGS_save} -Werror"
    for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
        AC_TRY_COMPILE([],
        [static char c __attribute__ ((aligned(${ac_cv_c_attr_align_try}))) = 0; return c;],
        [ac_cv_c_attribute_aligned="${ac_cv_c_attr_align_try}"])
    done
        CFLAGS="${CFLAGS_save}"])
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if test "x${ac_cv_c_attribute_aligned}" != "x0"; then
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    AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
        [${ac_cv_c_attribute_aligned}],[Maximum supported data alignment])
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fi

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dnl Checks for __attribute__(format()) directive
AC_CACHE_CHECK([__attribute__ ((format ())) support with function pointers],
    [ac_cv_c_attribute_format],
    [ac_cv_c_attribute_format=no
        CFLAGS="${CFLAGS_save} -Werror"
        AC_TRY_COMPILE([],
        [static void (*pf_printf)(const char *, ...) __attribute__ ((format(printf,1,2)));(void)pf_printf;],
        [ac_cv_c_attribute_format=yes])
        CFLAGS="${CFLAGS_save}"])
if test "x${ac_cv_c_attribute_format}" != "xno"; then
    AC_DEFINE(HAVE_ATTRIBUTE_FORMAT, 1, Support for __attribute__((format())) with function pointers)
fi

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

case "${ARCH}" in
  hppa64)
    CFLAGS_mpeg_video="${CFLAGS_mpeg_video} -ffunction-sections"
    ;;
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esac
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dnl
dnl  Enable profiling
dnl
AC_ARG_ENABLE(gprof,
[  --enable-gprof          gprof profiling (default disabled)])
AC_ARG_ENABLE(cprof,
[  --enable-cprof          cprof profiling (default disabled)])
AM_CONDITIONAL(GPROF, test "${enable_gprof}" = "yes")
AM_CONDITIONAL(CPROF, test "${enable_gprof}" = "yes")

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dnl
dnl  default modules
dnl
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PLUGINS="${PLUGINS} dummy rc logger gestures access_file memcpy"
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PLUGINS="${PLUGINS} es audio m4v mpeg_system ps ts"
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PLUGINS="${PLUGINS} idct idctclassic motion mpeg_video spudec mpeg_audio"
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#PLUGINS="${PLUGINS} a52old imdct downmix imdct3dn downmix3dn imdctsse downmixsse"
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PLUGINS="${PLUGINS} lpcm a52"
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PLUGINS="${PLUGINS} deinterlace invert adjust wall transform distort clone crop motionblur"
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PLUGINS="${PLUGINS} float32tos16 float32tos8 float32tou16 float32tou8 a52tospdif fixed32tofloat32 fixed32tos16 s16tofloat32 s16tofloat32swab s8tofloat32 u8tofixed32 u8tofloat32"
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PLUGINS="${PLUGINS} trivial_resampler ugly_resampler linear_resampler"
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PLUGINS="${PLUGINS} trivial_channel_mixer headphone_channel_mixer"
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PLUGINS="${PLUGINS} trivial_mixer spdif_mixer float32_mixer"
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PLUGINS="${PLUGINS} aout_file"
#PLUGINS="${PLUGINS} scope"
PLUGINS="${PLUGINS} i420_rgb i420_yuy2 i422_yuy2 i420_ymga"
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PLUGINS="${PLUGINS} id3 m3u"
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PLUGINS="${PLUGINS} wav araw demuxdump demuxsub adpcm a52sys"
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PLUGINS="${PLUGINS} access_udp access_http ipv4 access_mms access_ftp"
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PLUGINS="${PLUGINS} sap screensaver"
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PLUGINS="${PLUGINS} httpd"
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dnl
dnl  Accelerated modules
dnl
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MMX_MODULES="memcpymmx idctmmx motionmmx i420_rgb_mmx i422_yuy2_mmx i420_ymga_mmx"
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MMXEXT_MODULES="memcpymmxext idctmmxext motionmmxext"
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THREEDNOW_MODULES="memcpy3dn"
SSE_MODULES=""
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ALTIVEC_MODULES="idctaltivec motionaltivec memcpyaltivec"
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if test "${enable_gprof}" != "yes"
then
  MMX_MODULES="${MMX_MODULES} i420_yuy2_mmx"
fi

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AC_CACHE_CHECK([if \$CC groks MMX inline assembly],
    [ac_cv_mmx_inline],
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    [CFLAGS="${CFLAGS_save}"
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     AC_TRY_COMPILE(,[void *p;asm volatile("packuswb %%mm1,%%mm2"::"r"(p));],
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                    ac_cv_mmx_inline=yes, ac_cv_mmx_inline=no)])
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if test "x${ac_cv_mmx_inline}" != "xno"; then
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  ACCEL_MODULES="${ACCEL_MODULES} ${MMX_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks MMX EXT inline assembly],
    [ac_cv_mmxext_inline],
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    [CFLAGS="${CFLAGS_save}"
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     AC_TRY_COMPILE(,[void *p;asm volatile("maskmovq %%mm1,%%mm2"::"r"(p));],
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                    ac_cv_mmxext_inline=yes, ac_cv_mmxext_inline=no)])
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if test "x${ac_cv_mmxext_inline}" != "xno"; then
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  ACCEL_MODULES="${ACCEL_MODULES} ${MMXEXT_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks 3D Now! inline assembly],
    [ac_cv_3dnow_inline],
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    [CFLAGS="${CFLAGS_save}"
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     AC_TRY_COMPILE(,[void *p;asm volatile("pfadd %%mm1,%%mm2"::"r"(p));],
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                    ac_cv_3dnow_inline=yes, ac_cv_3dnow_inline=no)])
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if test "x${ac_cv_3dnow_inline}" != "xno"; then
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  AC_DEFINE(CAN_COMPILE_3DNOW, 1, Define if \$CC groks 3D Now! inline assembly.)
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  ACCEL_MODULES="${ACCEL_MODULES} ${THREEDNOW_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks SSE inline assembly],
    [ac_cv_sse_inline],
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    [CFLAGS="${CFLAGS_save}"
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     AC_TRY_COMPILE(,[void *p;asm volatile("xorps %%xmm1,%%xmm2"::"r"(p));],
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                    ac_cv_sse_inline=yes, ac_cv_sse_inline=no)])
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if test "x${ac_cv_sse_inline}" != "xno" -a "x${SYS}" != "xmingw32"; then
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  AC_DEFINE(CAN_COMPILE_SSE, 1, Define if \$CC groks SSE inline assembly.)
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  ACCEL_MODULES="${ACCEL_MODULES} ${SSE_MODULES}"
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fi
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# don't try to grok AltiVec with native mingw32 it doesn't work right now
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# we should be able to remove this test with future versions of mingw32
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if test "x${SYS}" != "xmingw32"; then
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AC_CACHE_CHECK([if \$CC groks AltiVec inline assembly],
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    [ac_cv_altivec_inline],
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    [CFLAGS="${CFLAGS_save}"
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     AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
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         ac_cv_altivec_inline=yes,
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         [CFLAGS="${CFLAGS_save} -Wa,-m7400"
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          AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
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            [ac_cv_altivec_inline="-Wa,-m7400"],
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            ac_cv_altivec_inline=no)
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         ])])
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if test "x${ac_cv_altivec_inline}" != "xno"; then
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  AC_DEFINE(CAN_COMPILE_ALTIVEC, 1, Define if \$CC groks AltiVec inline assembly.)
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  if test "x${ac_cv_altivec_inline}" != "xyes"; then
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    CFLAGS_idctaltivec="${CFLAGS_idctaltivec} ${ac_cv_altivec_inline}"
    CFLAGS_motionaltivec="${CFLAGS_motionaltivec} ${ac_cv_altivec_inline}"
    CFLAGS_memcpyaltivec="${CFLAGS_memcpyaltivec} ${ac_cv_altivec_inline}"
    CFLAGS_vlc="${CFLAGS_vlc} ${ac_cv_altivec_inline}"
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  fi
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  ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks AltiVec C extensions],
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    [ac_cv_c_altivec],
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    [CFLAGS="${CFLAGS_save} -faltivec"
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     # Darwin test
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     AC_TRY_COMPILE(,[vec_mtvscr((vector unsigned int)(0));],
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        ac_cv_c_altivec=-faltivec, [
        # Linux/PPC test
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        CFLAGS="${CFLAGS_save} ${CFLAGS_idctaltivec} -fvec"
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        AC_TRY_COMPILE(,[vec_mtvscr((vector unsigned int)(0));],
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            [ac_cv_c_altivec="-fvec"], ac_cv_c_altivec=no)
        ])
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     CFLAGS="${CFLAGS_save}"])
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if test "x${ac_cv_c_altivec}" != "xno"; then
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  AC_DEFINE(CAN_COMPILE_C_ALTIVEC, 1, Define if your compiler groks C AltiVec extensions.)
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  CFLAGS_idctaltivec="${CFLAGS_idctaltivec} ${ac_cv_c_altivec}"
  CFLAGS_motionaltivec="${CFLAGS_motionaltivec} ${ac_cv_c_altivec}"
  CFLAGS_memcpyaltivec="${CFLAGS_memcpyaltivec} ${ac_cv_c_altivec}"
  CFLAGS_vlc="${CFLAGS_vlc} ${ac_cv_c_altivec}"
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  ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
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fi

AC_CACHE_CHECK([if linker needs -framework vecLib],
    [ac_cv_ld_altivec],
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    [LDFLAGS="${LDFLAGS_vlc} -framework vecLib"
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     AC_TRY_LINK([],,ac_cv_ld_altivec=yes,ac_cv_ld_altivec=no)
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     LDFLAGS="${LDFLAGS_save}"
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    ])
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if test "x${ac_cv_ld_altivec}" != "xno"; then
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  LDFLAGS_idctaltivec="${LDFLAGS_idctaltivec} -framework vecLib"
  LDFLAGS_motionaltivec="${LDFLAGS_motionaltivec} -framework vecLib"
  LDFLAGS_memcpyaltivec="${LDFLAGS_memcpyaltivec} -framework vecLib"
  LDFLAGS_vlc="${LDFLAGS_vlc} -framework vecLib"
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fi
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fi # end if mingw32
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AC_ARG_WITH(,[])
AC_ARG_WITH(,[Optimization options:])

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dnl
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dnl  Special arch tuning
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dnl
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AC_ARG_WITH(tuning,
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[  --with-tuning=ARCH      enable special tuning for an architecture
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                          (default i686 on IA-32 and 750 on PPC)])
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if test "x${with_tuning}" != "x"; then
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    if test "x${target_cpu}" = "xpowerpc"; then
        CFLAGS_TUNING="-mtune=${with_tuning}"
    else
        CFLAGS_TUNING="-mcpu=${with_tuning}"
    fi
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else
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    if test "x${target_cpu}" = "xi686" -o "x${target_cpu}" = "xi586" -o "x${target_cpu}" = "xi486" -o "x${target_cpu}" = "xi386"; then CFLAGS_TUNING="-mcpu=pentiumpro"
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    else
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        if test "x${target_cpu}" = "xpowerpc"; then CFLAGS_TUNING="-mtune=750"; fi
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    fi
fi
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dnl
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dnl  x86 accelerations
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dnl
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if test "x${target_cpu}" = "xi686" -o "x${target_cpu}" = "xi586" -o "x${target_cpu}" = "xx86" -o "x${target_cpu}" = "xi386"
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then
    ARCH="${ARCH} mmx"
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    PLUGINS="${PLUGINS} ${ACCEL_MODULES}"
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fi
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dnl
dnl  Enable/disable optimizations
dnl
AC_ARG_ENABLE(optimizations,
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[  --disable-optimizations disable compiler optimizations (default enabled)])
AM_CONDITIONAL(OPTIM, test "x${enable_optimizations}" != "xno")
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dnl
dnl  AltiVec acceleration
dnl
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AC_ARG_ENABLE(altivec,
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[  --disable-altivec       disable AltiVec optimizations (default enabled on PPC)],
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[ if test "x${enable_altivec}" = "xyes"; then ARCH="${ARCH} altivec";
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    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ],
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[ if test "x${target_cpu}" = "xpowerpc"; then ARCH="${ARCH} altivec";
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    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ])
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dnl
dnl  Debugging mode
dnl
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AC_ARG_ENABLE(debug,
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[  --enable-debug          debug mode (default disabled)])
AM_CONDITIONAL(DEBUG, test "x${enable_debug}" = "xyes")
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dnl
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dnl  Enable release-specific flags
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dnl
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AC_ARG_ENABLE(release,
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[  --enable-release        activate extra optimizations (default disabled)])
AM_CONDITIONAL(RELEASE, test "x${enable_release}" = "xyes")
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dnl
dnl Stream output
dnl
AC_ARG_ENABLE(sout,
  [  --enable-sout           Stream output modules (default enabled)])
if test "x${enable_sout}" != "xno"
then
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  PLUGINS="${PLUGINS} access_output_dummy access_output_udp access_output_file access_output_http"
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  PLUGINS="${PLUGINS} mux_ts mux_ps mux_avi mux_dummy"
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  PLUGINS="${PLUGINS} packetizer_mpegaudio packetizer_mpegvideo packetizer_a52"
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  PLUGINS="${PLUGINS} packetizer_mpeg4video packetizer_mpeg4audio"
  PLUGINS="${PLUGINS} packetizer_copy"
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  PLUGINS="${PLUGINS} vout_encoder"
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    dnl Ogg/ogm
    AC_CHECK_HEADERS(ogg/ogg.h, [
      AC_CHECK_LIB( ogg, ogg_stream_packetin, [
        PLUGINS="${PLUGINS} mux_ogg"
        LDFLAGS_mux_ogg="${LDFLAGS_mux_ogg} -logg" ])
    ],[])
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fi


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dnl
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dnl  Input plugins
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dnl

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AC_ARG_WITH(,[Input plugins:])
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dnl
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dnl  DVD module: optionally check for installed libdvdcss
dnl
AC_ARG_ENABLE(dvd,
[  --enable-dvd            DVD input module (default enabled)])
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if test "x${enable_dvd}" != "xno"
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then
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  AC_ARG_WITH(dvdcss,
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  [    --with-dvdcss=PATH    libdvdcss headers and libraries])
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  AC_ARG_WITH(dvdcss-tree,
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  [    --with-dvdcss-tree=PATH libdvdcss tree for static linking])
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  case "x${with_dvdcss}" in
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  x|xyes)
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    if test "x${with_dvdcss_tree}" = x
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    then
      AC_CHECK_HEADERS(dvdcss/dvdcss.h,
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        [ PLUGINS="${PLUGINS} dvd"
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          LDFLAGS_dvd="${LDFLAGS_dvd} -ldvdcss"
          LDFLAGS_dvdcss="${LDFLAGS_dvdcss} -ldvdcss" ],
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        [ AC_MSG_WARN([libdvdcss is no longer provided with vlc; please get libdvdcss from http://www.videolan.org/libdvdcss/ and build it. Then either use --with-dvdcss=<path/where/libdvdcss/was/installed> for dynamic linking (recommended under Unix) or --with-dvdcss-tree=<path/where/libdvdcss/was/built> for static linking (recommended under BeOS, Windows, MacOS X). Alternatively you can use --disable-dvd to disable the DVD plugin.])
          AC_MSG_ERROR([cannot find libdvdcss headers]) ])
    else
      AC_MSG_CHECKING(for libdvdcss.a in ${with_dvdcss_tree})
      real_dvdcss_tree="`cd ${with_dvdcss_tree} 2>/dev/null && pwd`"
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      if test "x${real_dvdcss_tree}" = "x"
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      then
        dnl  The given directory can't be found
        AC_MSG_RESULT(no)
        AC_MSG_ERROR([cannot cd to ${with_dvdcss_tree}])
      fi
      if test -f "${real_dvdcss_tree}/src/.libs/libdvdcss.a"
      then
        dnl  Use a custom libdvdcss
        AC_MSG_RESULT(${real_dvdcss_tree}/src/.libs/libdvdcss.a)
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        BUILTINS="${BUILTINS} dvd"
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        LDFLAGS_dvd="${LDFLAGS_dvd} -L${real_dvdcss_tree}/src/.libs -ldvdcss"
        LDFLAGS_dvdcss="${LDFLAGS_dvdcss} -L${real_dvdcss_tree}/src/.libs -ldvdcss"
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        CPPFLAGS_dvd="${CPPFLAGS_dvd} -I${real_dvdcss_tree}/src"
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