configure.ac.in

dnl Autoconf settings for vlc

AC_INIT(vlc,0.5.0-test3)

CONFIGURE_LINE="$0 $*"
CODENAME="Natalya"

AC_PREREQ(2.50)
AC_CONFIG_SRCDIR(src/libvlc.c)
AC_CANONICAL_SYSTEM

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.
AM_INIT_AUTOMAKE(vlc,0.5.0-test3)
AM_CONFIG_HEADER(config.h)

dnl
dnl  Save *FLAGS
dnl
CPPFLAGS_save="${CPPFLAGS}"
CFLAGS_save="${CFLAGS}"
CXXFLAGS_save="${CXXFLAGS}"
OBJCFLAGS_save="${OBJCFLAGS}"
LDFLAGS_save="${LDFLAGS}"

dnl
dnl Check for tools
dnl
AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_MAKE_SET
AC_PROG_INSTALL

dnl AC_PROG_EGREP only exists in autoconf 2.54+
AC_EGREP_CPP(foo,foo)

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)

dnl Find the right ranlib, even when cross-compiling
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(STRIP, strip, :)
AC_CHECK_TOOL(AR, ar, :)
AC_CHECK_TOOL(LD, ld, :)

dnl AM_PROG_LIBTOOL
AC_PROG_INSTALL

dnl Check for compiler properties
AC_C_CONST
AC_C_INLINE

dnl
dnl  Set default values
dnl
LDFLAGS_vlc="${LDFLAGS}"
LIBEXT=".so"

dnl
dnl  Check the operating system
dnl
case "x${target_os}" in
  x)
    SYS=unknown
    ;;
  xlinux*)
    SYS=linux
    ;;
  xbsdi*)
    SYS=bsdi
    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
    LDFLAGS_dvd="${LDFLAGS_dvd} -ldvd"
    LDFLAGS_dvdcss="${LDFLAGS_dvdcss} -ldvd"
    LDFLAGS_vcd="${LDFLAGS_vcd} -ldvd"
    ;;
  x*bsd*)
    SYS="${target_os}"
    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
    ;;
  xdarwin*)
    SYS=darwin
    CFLAGS_save="${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="${OBJCFLAGS_save}"
    LDFLAGS_vlc="${LDFLAGS_vlc} -all_load"
    LIBEXT=".dylib"
    ;;
  x*mingw32* | x*cygwin*)
    AC_CHECK_TOOL(WINDRES, windres, :)
    LIBEXT=".dll"

    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$SYS" = "xmingw32"; then
        # add ws2_32 for closesocket, select, recv
        CPPFLAGS_save="${CPPFLAGS_save} -D_OFF_T_ -D_off_t=long"
        CPPFLAGS="${CPPFLAGS_save}"
        LDFLAGS_vlc="${LDFLAGS_vlc} -lws2_32 -lnetapi32 -mwindows"
        LDFLAGS_ipv4="${LDFLAGS_ipv4} -lws2_32"
        LDFLAGS_ipv6="${LDFLAGS_ipv6} -lws2_32"
        LDFLAGS_access_http="${LDFLAGS_access_http} -lws2_32"
        LDFLAGS_access_mms="${LDFLAGS_access_mms} -lws2_32"
        LDFLAGS_access_udp="${LDFLAGS_access_udp} -lws2_32"
        LDFLAGS_access_ftp="${LDFLAGS_access_ftp} -lws2_32"
        LDFLAGS_access_output_udp="${LDFLAGS_access_output_udp} -lws2_32"
        LDFLAGS_rc="${LDFLAGS_rc} -lws2_32"
        LDFLAGS_sap="${LDFLAGS_sap} -lws2_32"
    fi
    ;;
  x*nto*)
    SYS=nto
    LDFLAGS_x11="${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="${LDFLAGS_plugins} -nostart"
    LDFLAGS_beos="${LDFLAGS_beos} -lbe -lmedia -lroot -ltracker -lstdc++.r4 -ltranslation"
    dnl BONE or not BONE ?
    AC_CHECK_LIB( bind, inet_ntoa,
        [ LDFLAGS_access_mms="${LDFLAGS_access_mms} -lbind"
          LDFLAGS_ipv4="${LDFLAGS_ipv4} -lbind"],
        [])
    ;;
  x*)
    SYS="${target_os}"
    ;;
esac
AM_CONDITIONAL(HAVE_BEOS, test "x${SYS}" = "xbeos")
AM_CONDITIONAL(HAVE_DARWIN, test "x${SYS}" = "xdarwin")
AM_CONDITIONAL(HAVE_WIN32, test "x${SYS}" = "xmingw32")

dnl
dnl Gettext stuff
dnl
ALL_LINGUAS="de en_GB fr it ja no ru nl pl sv"
AM_GNU_GETTEXT_VERSION(0.10.40)
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"
else
  AC_CHECK_FUNCS(textdomain,,[
    AC_CHECK_LIB(intl,textdomain,
      LDFLAGS_vlc="${LDFLAGS_vlc} -lintl"
      LDFLAGS_plugins="${LDFLAGS_plugins} -lintl"
    )
  ])
fi
AM_CONDITIONAL(BUILD_INTL, test "${nls_cv_force_use_gnu_gettext}" = "yes")
XGETTEXT="${XGETTEXT} --keyword=_NS"

AC_MSG_CHECKING(for suffix of libraries)
AC_MSG_RESULT(${LIBEXT})

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}",
            [LDFLAGS_vlc="${LDFLAGS_vlc} -lmingwex"
             LDFLAGS_gtk="${LDFLAGS_gtk} -lmingwex"])
    )
fi

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
        CFLAGS_mingw32_special="-mms-bitfields"
    else
        CFLAGS_mingw32_special="-fnative-struct"
    fi

    CFLAGS_save="${CFLAGS_save} ${CFLAGS_mingw32_special}";
    CXXFLAGS_save="${CXXFLAGS_save} ${CFLAGS_mingw32_special}";
    CFLAGS="${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++)
fi

dnl Flags for plugin compilation
case "x${SYS}" in
  xmingw32|xcygwin)
    CFLAGS_pics="${CFLAGS_pics} ${CFLAGS_mingw32_special}"
    CXXFLAGS_pics="${CXXFLAGS_pics} ${CFLAGS_mingw32_special} ${CXXFLAGS_mingw32_special}"
    OBJCFLAGS_pics="${OBJCFLAGS_pics} ${CFLAGS_mingw32_special}"
    CFLAGS_plugins="${CFLAGS_plugins} ${CFLAGS_mingw32_special}"
    CXXFLAGS_plugins="${CXXFLAGS_plugins} ${CFLAGS_mingw32_special} ${CXXFLAGS_mingw32_special}"
    OBJCFLAGS_plugins="${OBJCFLAGS_plugins} ${CFLAGS_mingw32_special}"
    ;;
  x*)
    CFLAGS_pics="${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

dnl The -DSYS_FOO flag
CPPFLAGS_save="${CPPFLAGS_save} -DSYS_`echo ${SYS} | sed -e 's/-.*//' | tr 'abcdefghijklmnopqrstuvwxyz.' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`"; CPPFLAGS="${CPPFLAGS_save}"

dnl Check for system libs needed
need_libc=false

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
AC_CHECK_FUNCS(strdup strndup atof lseek)
AC_CHECK_FUNCS(strcasecmp,,[AC_CHECK_FUNCS(stricmp)])
AC_CHECK_FUNCS(strncasecmp,,[AC_CHECK_FUNCS(strnicmp)])

AC_CHECK_FUNCS(connect,,[
  AC_CHECK_LIB(socket,connect,
    LDFLAGS_ipv4="${LDFLAGS_ipv4} -lsocket"
    LDFLAGS_vlc="${LDFLAGS_vlc} -lsocket"
)])

AC_CHECK_FUNCS(send,,[
  AC_CHECK_LIB(socket,send,
    LDFLAGS_access_http="${LDFLAGS_access_http} -lsocket"
    LDFLAGS_access_mms="${LDFLAGS_access_mms} -lsocket"
    LDFLAGS_access_udp="${LDFLAGS_access_udp} -lsocket"
    LDFLAGS_access_ftp="${LDFLAGS_access_ftp} -lsocket"
    LDFLAGS_sap="${LDFLAGS_sap} -lsocket"
    LDFLAGS_access_output_udp="${LDFLAGS_access_output_udp} -lsocket"
)])

AC_CHECK_FUNCS(gethostbyname,,[
  AC_CHECK_LIB(nsl,gethostbyname,LDFLAGS_ipv4="${LDFLAGS_ipv4} -lnsl",[
    AC_CHECK_LIB(bind,gethostbyname,LDFLAGS_ipv4="${LDFLAGS_ipv4} -lbind")])
])

have_nanosleep=false
AC_CHECK_FUNCS(nanosleep,have_nanosleep=:,[
  AC_CHECK_LIB(rt,nanosleep,
    [LDFLAGS_vlc="${LDFLAGS_vlc} -lrt"; have_nanosleep=:],
    [AC_CHECK_LIB(posix4,nanosleep,
        [LDFLAGS_vlc="${LDFLAGS_vlc} -lposix4"; have_nanosleep=:])]
  )
])
if ${have_nanosleep}; then
  AC_DEFINE(HAVE_NANOSLEEP, 1,
            Define if nanosleep is available.)
fi

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
AC_CHECK_LIB(rt,sem_init, [LDFLAGS_vlc="${LDFLAGS_vlc} -lrt"])

AC_CHECK_FUNCS(inet_aton,,[
  AC_CHECK_LIB(resolv,inet_aton,LDFLAGS_ipv4="${LDFLAGS_ipv4} -lresolv")
])

dnl Check for getopt
need_getopt=false
AC_CHECK_FUNCS(getopt_long,[AC_DEFINE(HAVE_GETOPT_LONG,1,long getopt support)],
[ # FreeBSD has a gnugetopt library for this:
  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})

AC_TYPE_SIGNAL
AC_CHECK_LIB(dl,dlopen,LDFLAGS_vlc="${LDFLAGS_vlc} -ldl")
AC_CHECK_LIB(m,cos,
  LDFLAGS_imdct="${LDFLAGS_imdct} -lm"
  LDFLAGS_filter_distort="${LDFLAGS_filter_distort} -lm"
  LDFLAGS_a52tofloat32="${LDFLAGS_a52tofloat32} -lm")
AC_CHECK_LIB(m,pow,
  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"
)

dnl Check for pthreads - borrowed from XMMS
THREAD_LIB=error
if test "x${THREAD_LIB}" = "xerror"; then
  AC_CHECK_LIB(pthread,main,THREAD_LIB="-lpthread")
fi
if test "x${THREAD_LIB}" = "xerror"; then
  AC_CHECK_LIB(pthreads,main,THREAD_LIB="-lpthreads")
fi
if test "x${THREAD_LIB}" = "xerror"; then
  AC_CHECK_LIB(c_r,main,THREAD_LIB="-lc_r")
fi
if test "x${THREAD_LIB}" = "xerror"; then
  AC_CHECK_FUNCS(pthread_mutex_lock)
  THREAD_LIB=""
fi

dnl Check for cthreads under GNU/Hurd for instance
AC_CHECK_LIB(threads,cthread_fork,THREAD_LIB="-lthreads")

dnl Check for misc headers
AC_MSG_CHECKING(for pthread_cond_t in pthread.h)
AC_EGREP_HEADER(pthread_cond_t,pthread.h,[
  AC_MSG_RESULT(yes)
  AC_DEFINE(PTHREAD_COND_T_IN_PTHREAD_H, 1,
            Define if <pthread.h> defines pthread_cond_t.)],[
  AC_MSG_RESULT(no)])

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

AC_MSG_CHECKING(for strncasecmp in strings.h)
AC_EGREP_HEADER(strncasecmp,strings.h,[
  AC_MSG_RESULT(yes)
  AC_DEFINE(STRNCASECMP_IN_STRINGS_H, 1,
            Define if <strings.h> defines strncasecmp.)],[
  AC_MSG_RESULT(no)])

dnl Check for headers
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)
AC_CHECK_HEADERS(dlfcn.h image.h)
AC_CHECK_HEADERS(arpa/inet.h net/if.h netinet/in.h sys/socket.h)
AC_CHECK_HEADERS(machine/param.h sys/shm.h)
AC_CHECK_HEADERS(linux/version.h)

AC_HEADER_TIME

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

dnl Mac OS X and other OSes don't have declaration for nanosleep
AC_MSG_CHECKING(for nanosleep in time.h)
AC_EGREP_HEADER(nanosleep,time.h,[
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_DECL_NANOSLEEP, 1,
            Define if <time.h> defines nanosleep.)
],[
  AC_MSG_RESULT(no)
])

dnl Make sure we have timespecs
AC_MSG_CHECKING(for timespec in sys/time.h)
AC_EGREP_HEADER(timespec,sys/time.h,[
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_STRUCT_TIMESPEC, 1,
            Define if <sys/time.h> defines struct timespec.)
],[
  AC_MSG_RESULT(no)
])

dnl Check for threads library
AC_CHECK_HEADERS(cthreads.h pthread.h kernel/scheduler.h kernel/OS.h)

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

dnl Build the gtk_main plugins?
NEED_GTK_MAIN=no
NEED_GNOME_MAIN=no

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

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

dnl Check for inline function size limit
AC_CACHE_CHECK([if \$CC accepts -finline-limit],
    [ac_cv_c_inline_limit],
    [CFLAGS="${CFLAGS_save} -finline-limit-30000"
     AC_TRY_COMPILE([],,ac_cv_c_inline_limit=yes, ac_cv_c_inline_limit=no)])
if test "x${ac_cv_c_inline_limit}" != "xno"; then
    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}"
fi

# 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

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)])

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

if test "x${ac_cv_c_Wunreachable_code}" != "xno"; then
#    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}"

    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.
#    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
    if test "x${ac_cv_c_Winline}" != "xno"; then
        CXXFLAGS_save="-Winline ${CXXFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
    fi

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}"
fi

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

dnl Check for various optimization flags
AC_CACHE_CHECK([if \$CC accepts -O3],
    [ac_cv_c_o3],
    [CFLAGS="${CFLAGS_save} -O3"
     AC_TRY_COMPILE([],,ac_cv_c_o3=yes, ac_cv_c_o3=no)])
if test "x${ac_cv_c_o3}" != "xno"; then
    CFLAGS_OPTIM="${CFLAGS_OPTIM} -O3"
else
    AC_CACHE_CHECK([if \$CC accepts -O2],
        [ac_cv_c_o2],
        [CFLAGS="${CFLAGS_save} -O2"
         AC_TRY_COMPILE([],,ac_cv_c_o2=yes, ac_cv_c_o2=no)])
    if test "x${ac_cv_c_o2}" != "xno"; then
        CFLAGS_OPTIM="${CFLAGS_OPTIM} -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
            CFLAGS_OPTIM="${CFLAGS_OPTIM} -O"
        fi
    fi
fi

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

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

dnl Check for -fomit-frame-pointer
AC_CACHE_CHECK([if \$CC accepts -fomit-frame-pointer],
    [ac_cv_c_omit_frame_pointer],
    [CFLAGS="${CFLAGS_save} -fomit-frame-pointer"
     AC_TRY_COMPILE([],,ac_cv_c_omit_frame_pointer=yes, ac_cv_c_omit_frame_pointer=no)])
if test "x${ac_cv_c_omit_frame_pointer}" != "xno"; then
    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"
fi

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
    CFLAGS_builtins="${CFLAGS_builtins} -mdynamic-no-pic"
    CFLAGS_libvlc="${CFLAGS_libvlc} -mdynamic-no-pic"
fi

dnl Check for Darwin plugin linking flags
AC_CACHE_CHECK([if \$CC accepts -bundle -undefined error -lcc_dynamic],
    [ac_cv_ld_darwin],
    [CFLAGS="${CFLAGS_save} -bundle -undefined error -lcc_dynamic"
     AC_TRY_COMPILE([],,ac_cv_ld_darwin=yes, ac_cv_ld_darwin=no)])
if test "x${ac_cv_ld_darwin}" != "xno"; then
    LDFLAGS_plugins="${LDFLAGS_plugins} -bundle -undefined error -lcc_dynamic"
fi

dnl Check for standard plugin linking flags
AC_CACHE_CHECK([if \$CC accepts -shared],
    [ac_cv_ld_plugins],
    [CFLAGS="${CFLAGS_save} -shared"
     AC_TRY_COMPILE([],, ac_cv_ld_plugins=yes, ac_cv_ld_plugins=no)])
if test "x${ac_cv_ld_plugins}" != "xno"; then
    LDFLAGS_plugins="${LDFLAGS_plugins} -shared"
fi

dnl Check for variadic macros
AC_CACHE_CHECK([for variadic cpp macros],
    [ac_cv_cpp_variadic_macros],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(
         [#include <stdio.h>
          #define a(b,c...) printf(b,##c)],
         [a("foo");a("%s","bar");a("%s%s","baz","quux");],
         ac_cv_cpp_variadic_macros=yes,
         ac_cv_cpp_variadic_macros=no)])
if test "x${ac_cv_cpp_variadic_macros}" != "xno"; then
    AC_DEFINE(HAVE_VARIADIC_MACROS, 1, Support for variadic macros)
fi

dnl Checks for __attribute__(aligned()) directive
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
    [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}"])
if test "x${ac_cv_c_attribute_aligned}" != "x0"; then
    AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
        [${ac_cv_c_attribute_aligned}],[Maximum supported data alignment])
fi

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

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

case "${ARCH}" in
  hppa64)
    CFLAGS_mpeg_video="${CFLAGS_mpeg_video} -ffunction-sections"
    ;;
esac

dnl
dnl  default modules
dnl
PLUGINS="${PLUGINS} dummy rc logger access_file memcpy"
PLUGINS="${PLUGINS} es audio m4v mpeg_system ps ts"
PLUGINS="${PLUGINS} idct idctclassic motion mpeg_video spudec mpeg_audio"
#PLUGINS="${PLUGINS} a52old imdct downmix imdct3dn downmix3dn imdctsse downmixsse"
PLUGINS="${PLUGINS} lpcm a52"
PLUGINS="${PLUGINS} deinterlace invert adjust wall transform distort clone crop motionblur"
PLUGINS="${PLUGINS} float32tos16 float32tos8 float32tou16 float32tou8 a52tospdif fixed32tofloat32 fixed32tos16 s16tofloat32 s16tofloat32swab s8tofloat32 u8tofixed32 u8tofloat32"
PLUGINS="${PLUGINS} trivial_resampler ugly_resampler linear_resampler"
PLUGINS="${PLUGINS} trivial_channel_mixer headphone_channel_mixer"
PLUGINS="${PLUGINS} trivial_mixer spdif_mixer float32_mixer"
PLUGINS="${PLUGINS} aout_file"
#PLUGINS="${PLUGINS} scope"
PLUGINS="${PLUGINS} i420_rgb i420_yuy2 i422_yuy2 i420_ymga"
PLUGINS="${PLUGINS} id3 m3u"
PLUGINS="${PLUGINS} wav araw demuxdump demuxsub adpcm"
PLUGINS="${PLUGINS} access_udp access_http ipv4 access_mms access_ftp"
PLUGINS="${PLUGINS} sap"

dnl
dnl  Accelerated modules
dnl
MMX_MODULES="memcpymmx idctmmx motionmmx i420_rgb_mmx i420_yuy2_mmx i422_yuy2_mmx i420_ymga_mmx"
MMXEXT_MODULES="memcpymmxext idctmmxext motionmmxext"
THREEDNOW_MODULES="memcpy3dn"
SSE_MODULES=""
ALTIVEC_MODULES="idctaltivec motionaltivec memcpyaltivec"

AC_CACHE_CHECK([if \$CC groks MMX inline assembly],
    [ac_cv_mmx_inline],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(,[void *p;asm volatile("packuswb %%mm1,%%mm2"::"r"(p));],
                    ac_cv_mmx_inline=yes, ac_cv_mmx_inline=no)])
if test "x${ac_cv_mmx_inline}" != "xno"; then
  ACCEL_MODULES="${ACCEL_MODULES} ${MMX_MODULES}"
fi

AC_CACHE_CHECK([if \$CC groks MMX EXT inline assembly],
    [ac_cv_mmxext_inline],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(,[void *p;asm volatile("maskmovq %%mm1,%%mm2"::"r"(p));],
                    ac_cv_mmxext_inline=yes, ac_cv_mmxext_inline=no)])
if test "x${ac_cv_mmxext_inline}" != "xno"; then
  ACCEL_MODULES="${ACCEL_MODULES} ${MMXEXT_MODULES}"
fi

AC_CACHE_CHECK([if \$CC groks 3D Now! inline assembly],
    [ac_cv_3dnow_inline],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(,[void *p;asm volatile("pfadd %%mm1,%%mm2"::"r"(p));],
                    ac_cv_3dnow_inline=yes, ac_cv_3dnow_inline=no)])
if test "x${ac_cv_3dnow_inline}" != "xno"; then
  AC_DEFINE(CAN_COMPILE_3DNOW, 1, Define if \$CC groks 3D Now! inline assembly.)
  ACCEL_MODULES="${ACCEL_MODULES} ${THREEDNOW_MODULES}"
fi

AC_CACHE_CHECK([if \$CC groks SSE inline assembly],
    [ac_cv_sse_inline],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(,[void *p;asm volatile("xorps %%xmm1,%%xmm2"::"r"(p));],
                    ac_cv_sse_inline=yes, ac_cv_sse_inline=no)])
if test "x${ac_cv_sse_inline}" != "xno" -a "x${SYS}" != "xmingw32"; then
  AC_DEFINE(CAN_COMPILE_SSE, 1, Define if \$CC groks SSE inline assembly.)
  ACCEL_MODULES="${ACCEL_MODULES} ${SSE_MODULES}"
fi

# don't try to grok AltiVec with native mingw32 it doesn't work right now
# we should be able to remove this test with future versions of mingw32
if test "x${SYS}" != "xmingw32"; then
AC_CACHE_CHECK([if \$CC groks AltiVec inline assembly],
    [ac_cv_altivec_inline],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
         ac_cv_altivec_inline=yes,
         [CFLAGS="${CFLAGS_save} -Wa,-m7400"
          AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
            [ac_cv_altivec_inline="-Wa,-m7400"],
            ac_cv_altivec_inline=no)
         ])])
if test "x${ac_cv_altivec_inline}" != "xno"; then
  AC_DEFINE(CAN_COMPILE_ALTIVEC, 1, Define if \$CC groks AltiVec inline assembly.)
  if test "x${ac_cv_altivec_inline}" != "xyes"; then
    CFLAGS_idctaltivec="${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} ${ac_cv_altivec_inline}"
  fi
  ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
fi

AC_CACHE_CHECK([if \$CC groks AltiVec C extensions],
    [ac_cv_c_altivec],
    [CFLAGS="${CFLAGS_save} -faltivec"
     # Darwin test
     AC_TRY_COMPILE(,[vec_mtvscr((vector unsigned int)(0));],
        ac_cv_c_altivec=-faltivec, [
        # Linux/PPC test
        CFLAGS="${CFLAGS_save} ${CFLAGS_idctaltivec} -fvec"
        AC_TRY_COMPILE(,[vec_mtvscr((vector unsigned int)(0));],
            [ac_cv_c_altivec="-fvec"], ac_cv_c_altivec=no)
        ])
     CFLAGS="${CFLAGS_save}"])
if test "x${ac_cv_c_altivec}" != "xno"; then
  AC_DEFINE(CAN_COMPILE_C_ALTIVEC, 1, Define if your compiler groks C AltiVec extensions.)
  CFLAGS_idctaltivec="${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} ${ac_cv_c_altivec}"
  ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
fi

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

AC_ARG_WITH(,[])
AC_ARG_WITH(,[Optimization options:])

dnl
dnl  Special arch tuning
dnl
AC_ARG_WITH(tuning,
[  --with-tuning=ARCH      enable special tuning for an architecture
                          (default i686 on IA-32 and 750 on PPC)])
if test "x${with_tuning}" != "x"; then
    if test "x${target_cpu}" = "xpowerpc"; then
        CFLAGS_TUNING="-mtune=${with_tuning}"
    else
        CFLAGS_TUNING="-mcpu=${with_tuning}"
    fi
else
    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"
    else
        if test "x${target_cpu}" = "xpowerpc"; then CFLAGS_TUNING="-mtune=750"; fi
    fi
fi

dnl
dnl  x86 accelerations
dnl
if test "x${target_cpu}" = "xi686" -o "x${target_cpu}" = "xi586" -o "x${target_cpu}" = "xx86" -o "x${target_cpu}" = "xi386"
then
    ARCH="${ARCH} mmx"
    PLUGINS="${PLUGINS} ${ACCEL_MODULES}"
fi

dnl
dnl  Enable/disable optimizations
dnl
AC_ARG_ENABLE(optimizations,
[  --disable-optimizations disable compiler optimizations (default enabled)])
AM_CONDITIONAL(OPTIM, test "x${enable_optimizations}" != "xno")

dnl
dnl  AltiVec acceleration
dnl
AC_ARG_ENABLE(altivec,
[  --disable-altivec       disable AltiVec optimizations (default enabled on PPC)],
[ if test "x${enable_altivec}" = "xyes"; then ARCH="${ARCH} altivec";
    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ],
[ if test "x${target_cpu}" = "xpowerpc"; then ARCH="${ARCH} altivec";
    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ])

dnl
dnl  Debugging mode
dnl
AC_ARG_ENABLE(debug,
[  --enable-debug          debug mode (default disabled)])
AM_CONDITIONAL(DEBUG, test "x${enable_debug}" = "xyes")

dnl
dnl  Enable release-specific flags
dnl
AC_ARG_ENABLE(release,
[  --enable-release        activate extra optimizations (default disabled)])
AM_CONDITIONAL(RELEASE, test "x${enable_release}" = "xyes")

dnl
dnl Stream output
dnl
AC_ARG_ENABLE(sout,
  [  --enable-sout           Stream output modules (default enabled)])
if test "x${enable_sout}" != "xno"
then
  PLUGINS="${PLUGINS} access_output_dummy access_output_udp access_output_file"
  PLUGINS="${PLUGINS} mux_ts mux_ps mux_avi mux_dummy"
  PLUGINS="${PLUGINS} packetizer_mpegaudio packetizer_mpegvideo packetizer_a52"
  PLUGINS="${PLUGINS} packetizer_mpeg4video packetizer_mpeg4audio"
  PLUGINS="${PLUGINS} packetizer_copy"
fi


dnl
dnl  Input plugins
dnl

AC_ARG_WITH(,[Input plugins:])

dnl
dnl  DVD module: optionally check for installed libdvdcss
dnl
AC_ARG_ENABLE(dvd,
[  --enable-dvd            DVD input module (default enabled)])
if test "x${enable_dvd}" != "xno"
then
  AC_ARG_WITH(dvdcss,
  [    --with-dvdcss=PATH    libdvdcss headers and libraries])
  AC_ARG_WITH(dvdcss-tree,
  [    --with-dvdcss-tree=PATH libdvdcss tree for static linking])
  case "x${with_dvdcss}" in
  x|xyes)
    if test "x${with_dvdcss_tree}" = x
    then
      AC_CHECK_HEADERS(dvdcss/dvdcss.h,
        [ PLUGINS="${PLUGINS} dvd"
          LDFLAGS_dvd="${LDFLAGS_dvd} -ldvdcss"
          LDFLAGS_dvdcss="${LDFLAGS_dvdcss} -ldvdcss" ],
        [ 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 ${with_dvdcss_tree} 2>/dev/null && pwd`"
      if test "x${real_dvdcss_tree}" = "x"
      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(${real_dvdcss_tree}/src/.libs/libdvdcss.a)
        BUILTINS="${BUILTINS} dvd"
        LDFLAGS_dvd="${LDFLAGS_dvd} ${real_dvdcss_tree}/src/.libs/libdvdcss.a"
        LDFLAGS_dvdcss="${LDFLAGS_dvdcss} ${real_dvdcss_tree}/src/.libs/libdvdcss.a"
        CPPFLAGS_dvd="${CPPFLAGS_dvd} -I${real_dvdcss_tree}/src"
      else
        dnl  The given libdvdcss wasn't built
        AC_MSG_RESULT(no)
        AC_MSG_ERROR([cannot find ${real_dvdcss_tree}/src/.libs/libdvdcss.a, make sure you compiled libdvdcss in ${with_dvdcss_tree}])
      fi
    fi
  ;;
  xno)
    dnl  Compile without dvdcss (dlopen version, works only under Linux)
    PLUGINS="${PLUGINS} dvd"
    CPPFLAGS_dvd="${CPPFLAGS_dvd} -DGOD_DAMN_DMCA"
    LDFLAGS_dvd="${LDFLAGS_dvd} -ldl"
  ;;
  *)
    AC_MSG_CHECKING(for dvdcss headers in ${with_dvdcss})
    if test -f ${with_dvdcss}/include/dvdcss/dvdcss.h
    then
      dnl  Use ${with_dvdcss}/include/dvdcss/dvdcss.h
      AC_MSG_RESULT(yes)
      PLUGINS="${PLUGINS} dvd"
      LDFLAGS_dvd="${LDFLAGS_dvd} -L${with_dvdcss}/lib -ldvdcss"
      LDFLAGS_dvdcss="${LDFLAGS_dvdcss} -L${with_dvdcss}/lib -ldvdcss"
      CPPFLAGS_dvd="${CPPFLAGS_dvd} -I${with_dvdcss}/include"
    else
      dnl  No libdvdcss could be found, sorry
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([cannot find ${with_dvdcss}/include/dvdcss/dvdcss.h])
    fi
  ;;
  esac
fi

dnl
dnl dvdread module: check for libdvdread
dnl
AC_ARG_ENABLE(dvdread,
[  --enable-dvdread        dvdread input module (default disabled)])
if test "x${enable_dvdread}" != "xno"
then
  AC_ARG_WITH(dvdread,
  [    --with-dvdread=PATH    libdvdread headers and libraries])
  AC_ARG_WITH(dvdread-tree,
  [    --with-dvdread-tree=PATH libdvdread tree for static linking])
  if test "x${with_dvdread}" = x
  then
    if test "x${with_dvdread_tree}" = x