configure.ac

      AC_CHECK_LIB(Xinerama, XineramaQueryExtension,[
        VLC_ADD_LIBS([xvideo],[-lXinerama])
        VLC_ADD_LIBS([x11],[-lXinerama])
        VLC_ADD_LIBS([glx],[-lXinerama])
        ac_cv_have_xinerama="yes"
      ])
    ])
  ])
  if test "${ac_cv_have_xinerama}" = "yes"; then
    AC_DEFINE(HAVE_XINERAMA, 1, [Define this if you have libXinerama installed])
  fi
  CFLAGS="${CFLAGS_save}"
  CPPFLAGS="${CPPFLAGS_save}"

dnl
dnl  Check for XF86VidMode extension
dnl
  ac_cv_have_xf86vidmode="no"
  CPPFLAGS="${CPPFLAGS_save} ${X_CFLAGS}"
  CFLAGS="${CFLAGS_save} ${X_LIBS} ${X_PRE_LIBS} -lX11 -lXext"
  AC_CHECK_HEADERS(X11/extensions/xf86vmode.h,[
    AC_CHECK_LIB(Xxf86vm_pic, XF86VidModeGetViewPort,[
      VLC_ADD_LIBS([xvideo],[-lXxf86vm_pic])
      VLC_ADD_LIBS([x11],[-lXxf86vm_pic])
      VLC_ADD_LIBS([glx],[-lXxf86vm_pic])
      ac_cv_have_xf86vidmode="yes"
    ],[
      AC_CHECK_LIB(Xxf86vm, XF86VidModeGetViewPort,[
        VLC_ADD_LIBS([xvideo],[-lXxf86vm])
        VLC_ADD_LIBS([x11],[-lXxf86vm])
        VLC_ADD_LIBS([glx],[-lXxf86vm])
        ac_cv_have_xf86vidmode="yes"
      ])
    ])
  ],[true],
[#ifdef HAVE_X11_XLIB_H
# include <X11/Xlib.h>
#endif]
   )
  AS_IF([test "${ac_cv_have_xf86vidmode}" = "yes"],
    [AC_DEFINE(HAVE_XF86VIDMODE, 1, [Define this if you have libXxf86vm installed])
  ])
  CFLAGS="${CFLAGS_save}"
  CPPFLAGS="${CPPFLAGS_save}"

fi

dnl
dnl  OpenGL module
dnl  (enabled by default except on beos)
dnl
AC_ARG_ENABLE(opengl,
  [  --enable-opengl         OpenGL support (default enabled)])
if test "${enable_opengl}" != "no" &&
   test "${SYS}" != "beos" -a "${SYS}" != "mingwce"; then
  if test "${SYS}" != "darwin"; then
    AC_CHECK_HEADERS(GL/gl.h GL/glu.h, [
      VLC_ADD_PLUGINS([opengl])
      if test "${SYS}" != "mingw32"; then
        VLC_ADD_LIBS([opengl],[${X_LIBS} -lGL -lGLU])
      else
        VLC_ADD_LIBS([opengl],[-lopengl32 -lglu32])
      fi
    ])
  else
    dnl OS X special case (no GL/gl.h but OpenGL/gl.h)
    VLC_ADD_PLUGINS([opengl])
    VLC_ADD_LIBS([opengl],[-Wl,-framework,OpenGL])
  fi
fi

dnl
dnl  SDL module
dnl
AC_ARG_ENABLE(sdl,
  [  --enable-sdl            SDL support (default enabled)])
AC_ARG_ENABLE(sdl-image,
  [  --enable-sdl-image      SDL image support (default enabled)])
if test "${enable_sdl}" != "no"
then
  SDL_PATH="${PATH}"
  AC_ARG_WITH(sdl-config-path,
    [    --with-sdl-config-path=PATH sdl-config path (default search in \$PATH)],
    [ if test "${with_sdl_config_path}" != "no"
      then
        SDL_PATH="${with_sdl_config_path}:${PATH}"
      fi ])
  AC_PATH_PROG(SDL12_CONFIG, sdl12-config, no, ${SDL_PATH})
  SDL_CONFIG="${SDL12_CONFIG}"
  SDL_HEADER="SDL12/SDL.h"
  SDL_IMAGE="SDL12/SDL_image.h"
  if test "${SDL_CONFIG}" = "no"
  then
    AC_PATH_PROG(SDL11_CONFIG, sdl11-config, no, ${SDL_PATH})
    SDL_CONFIG=${SDL11_CONFIG}
    SDL_HEADER="SDL11/SDL.h"
    SDL_IMAGE="SDL11/SDL_image.h"
  fi
  if test "${SDL_CONFIG}" = "no"
  then
    AC_PATH_PROG(SDL_CONFIG, sdl-config, no, ${SDL_PATH})
    SDL_HEADER="SDL/SDL.h"
    SDL_IMAGE="SDL/SDL_image.h"
  fi
  # check for cross-compiling
  SDL_PREFIX=
  AC_ARG_WITH(sdl-prefix,
    [    --with-sdl-prefix=PATH path to libsdl (needed for cross-compiling),
                               e.g use as:
                               --with-sdl-prefix=/usr/local/arm/2.95.3/arm-linux/usr)],[],[])
  if test "${with_sdl_prefix}" != "no" -a -n "${with_sdl_prefix}"
  then
    SDL_PREFIX="--prefix=${with_sdl_prefix}"
  fi
  if test "${SDL_CONFIG}" != "no"
  then
    # SDL on Darwin is heavily patched and can only run SDL_image
    if test "${SYS}" != "darwin" -a "${SYS}" != "mingw32"; then
      VLC_ADD_PLUGINS([vout_sdl aout_sdl])
    fi
    VLC_ADD_CFLAGS([vout_sdl aout_sdl sdl_image],[`${SDL_CONFIG} ${SDL_PREFIX} --cflags | sed 's,SDL,,'`])
    VLC_ADD_LIBS([vout_sdl aout_sdl sdl_image],[`${SDL_CONFIG} ${SDL_PREFIX} --libs | sed 's,-rdynamic,,'`])
    CPPFLAGS="${CPPFLAGS_save} ${CFLAGS_vout_sdl}"
    AC_CHECK_HEADERS(${SDL_HEADER}, AC_DEFINE_UNQUOTED(SDL_INCLUDE_FILE,
      <${SDL_HEADER}>, Indicate whether we should use SDL/SDL.h or SDL11/SDL.h),
      [ AC_CHECK_HEADERS(SDL.h, AC_DEFINE(SDL_INCLUDE_FILE, <SDL.h>,
          As a last resort we also test for SDL.h presence),
      [ AC_MSG_ERROR([The development package for SDL is not installed.
Please install it and try again. Alternatively you can also configure with
--disable-sdl.])
      ])])
    AS_IF([ test "${enable_sdl_image}" != "no"],[
      AC_CHECK_HEADERS(${SDL_IMAGE}, [AC_DEFINE_UNQUOTED(SDL_IMAGE_INCLUDE_FILE,
        <${SDL_IMAGE}>, Indicate the path of SDL_image.h)
        VLC_ADD_PLUGINS([sdl_image])
        AC_CHECK_LIB(png, png_set_rows,
          [VLC_ADD_LIBS([sdl_image],[-lpng -lz])],[],[-lz])
        AC_CHECK_LIB(jpeg, jpeg_start_decompress,
          [VLC_ADD_LIBS([sdl_image],[-ljpeg])])
        AC_CHECK_LIB(tiff, TIFFClientOpen,
          [VLC_ADD_LIBS([sdl_image],[-ltiff])])
        VLC_ADD_LIBS([sdl_image], [-lSDL_image])],
        [ AC_CHECK_HEADERS(SDL_image.h, AC_DEFINE(SDL_IMAGE_INCLUDE_FILE, <SDL_image.h>,
            As a last resort we also test for SDL_image.h presence),
        [ AC_MSG_WARN([The development package for SDL_image is not installed.
  You should install it alongside your SDL package.])
        ])])
    ])
    CPPFLAGS="${CPPFLAGS_save}"
    if expr 1.1.5 \> `${SDL_CONFIG} --version` >/dev/null
    then
      AC_MSG_ERROR([The development package for SDL is not installed.
Please install it and try again. Alternatively you can also configure with
--disable-sdl.])
    fi

  elif test "${enable_sdl}" =  "yes"
  then
    AC_MSG_ERROR([I couldn't find the SDL package. You can download libSDL
from http://www.libsdl.org/, or configure with --disable-sdl. Have a nice day.
    ])
  fi
fi

dnl
dnl  freetype module
dnl
AC_ARG_ENABLE(freetype,
  [  --enable-freetype       freetype support (default enabled)])
AC_ARG_ENABLE(fribidi,
  [  --enable-fribidi        fribidi support (default enabled)])
if test "${enable_freetype}" != "no"
then
  FREETYPE_PATH="${PATH}"
  AC_ARG_WITH(freetype-config-path,
    [    --with-freetype-config-path=PATH freetype-config path (default search in \$PATH)],
    [ if test "${with_freetype_config_path}" != "no"
      then
        FREETYPE_PATH="${with_freetype_config_path}:${PATH}"
      fi ])
  AC_PATH_PROG(FREETYPE_CONFIG, freetype-config, no, ${FREETYPE_PATH})

  if test "${FREETYPE_CONFIG}" != "no"
  then
    VLC_ADD_PLUGINS([freetype])
    VLC_ADD_CFLAGS([freetype],[`${FREETYPE_CONFIG} --cflags`])
    VLC_ADD_LIBS([freetype],[`${FREETYPE_CONFIG} --libs`])
    if test "${SYS}" = "mingw32"; then
       VLC_ADD_LIBS([freetype],[-lxml2])
    fi
    AC_CHECK_HEADERS(fontconfig/fontconfig.h,
      [VLC_ADD_CFLAGS([freetype],[-DHAVE_FONTCONFIG])
       VLC_ADD_LIBS([freetype],[-lfontconfig])])
    AC_CHECK_HEADERS(Carbon/Carbon.h,
      [VLC_ADD_LDFLAGS([freetype],[-Wl,-framework,Carbon])])
  elif test "${enable_freetype}" =  "yes"
  then
    AC_MSG_ERROR([I couldn't find the freetype package. You can download libfreetype2
from http://www.freetype.org/, or configure with --disable-freetype. Have a nice day.
    ])
  fi

  dnl fribidi support
  if test "${enable_fribidi}" != "no"
  then
    FRIBIDI_PATH="${PATH}"
    AC_ARG_WITH(fribidi-config-path,
      [    --with-fribidi-config-path=PATH fribidi-config path (default search in \$PATH)],
      [ if test "${with_fribidi_config_path}" != "no"
        then
          FRIBIDI_PATH="${with_fribidi_config_path}:${PATH}"
        fi ])
    AC_PATH_PROG(FRIBIDI_CONFIG, fribidi-config, no, ${FRIBIDI_PATH})

    if test "${FRIBIDI_CONFIG}" != "no"
    then
      VLC_ADD_CFLAGS([freetype], [`${FRIBIDI_CONFIG} --cflags` -DHAVE_FRIBIDI])
      VLC_ADD_CPPFLAGS([skins2], [`${FRIBIDI_CONFIG} --cflags` -DHAVE_FRIBIDI])
      VLC_ADD_LIBS([freetype], [`${FRIBIDI_CONFIG} --libs`])
      VLC_ADD_LIBS([skins2], [`${FRIBIDI_CONFIG} --libs`])
    fi
  fi
fi

dnl
dnl  libxml2 module
dnl
AC_ARG_ENABLE(libxml2,
  [  --enable-libxml2        libxml2 support (default enabled)])
if test "${enable_libxml2}" != "no"
then
  XML2_PATH="${PATH}"
  AC_ARG_WITH(xml2-config-path,
    [    --with-xml2-config-path=PATH xml2-config path (default search in \$PATH)],
    [ if test "${with_xml2_config_path}" != "no"; then
        XML2_PATH="${with_xml2_config_path}:${PATH}"
      fi ])
  AC_PATH_PROG(XML2_CONFIG, xml2-config, no, ${XML2_PATH})
  if test "${XML2_CONFIG}" != "no"; then
    VLC_ADD_CPPFLAGS([xml],[`${XML2_CONFIG} --cflags`])
    VLC_ADD_LIBS([xml],[`${XML2_CONFIG} --libs`])
    dnl depends on the xmlTextReader extension
    CPPFLAGS="${CPPFLAGS_save} ${CPPFLAGS_xml}"
    LDFLAGS="${LDFLAGS_save} ${LIBS_xml}"
    AC_CHECK_LIB(xml2,xmlTextReaderConstName,[
      AC_EGREP_HEADER(xmlTextReaderConstName,libxml/xmlreader.h,[
        VLC_ADD_PLUGINS([xml]) ],[
          AC_MSG_WARN([libxml2 missing the xmlTextReader extension, you should update your version])
          if test "${enable_xml2}" = "yes"; then
            AC_MSG_ERROR([libxml2 missing the xmlTextReader extension])
          fi])
       ],[
      AC_MSG_WARN([libxml2 missing the xmlTextReader extension, you should update your version])
      if test "${enable_xml2}" = "yes"; then
        AC_MSG_ERROR([libxml2 missing the xmlTextReader extension])
      fi])
    LDFLAGS="${LDFLAGS_save}"
    CPPFLAGS="${CPPFLAGS_save}"
  else
    if test "${enable_xml2}" = "yes"; then
      AC_MSG_ERROR([Could not find libxml2])
    fi
  fi
fi

dnl
dnl  SVG module
dnl
AC_ARG_ENABLE(svg,
  [  --enable-svg            SVG support (default disabled)])
if test "${enable_svg}" = "yes"
then
  PKG_CHECK_MODULES(SVG, 
	librsvg-2.0 >= 2.9.0,
	[
 	  VLC_ADD_LIBS([svg],[$SVG_LIBS])
      	  VLC_ADD_CFLAGS([svg],[$SVG_CFLAGS])
          VLC_ADD_PLUGINS([svg]) ],
        [AC_MSG_WARN(SVG library not found)])
fi

dnl
dnl Snapshot vout module (with cache)
dnl
AC_ARG_ENABLE(snapshot,
  [  --enable-snapshot       snapshot module (default disabled)])
if test "${enable_snapshot}" = "yes"
then
  VLC_ADD_PLUGINS([snapshot])
fi

dnl
dnl  Qt Embedded module
dnl  (disabled by default)
dnl
AC_ARG_ENABLE(qte,
  [  --enable-qte            QT Embedded support (default disabled)])
if test "${enable_qte}" = "yes"
then
  AC_ARG_WITH(qte,
  [    --with-qte=PATH       Qt Embedded headers and libraries])
  if test "${with_qte}" != "no" -a -n "${with_qte}"
  then
    VLC_ADD_LIBS([qte],[-L${with_qte}/lib `echo -L${with_qte}/lib | sed 's,opt/QtPalmtop,usr,'` -ljpeg -lqte])
    VLC_ADD_CXXFLAGS([qte],[-I${with_qte}/include `echo -I${with_qte}/include | sed 's,opt/QtPalmtop,usr,'` -DQT_QWS_IPAQ -DQWS -fno-exceptions -fno-rtti])
  else
    VLC_ADD_LIBS([qte],[-L${QTDIR}/lib `echo -L${QTDIR}/lib | sed 's,opt/QtPalmtop,usr,'` -ljpeg -lqte])
    VLC_ADD_CXXFLAGS([qte],[-I${QTDIR}/include `echo -I${QTDIR}/include | sed 's,opt/QtPalmtop,usr,'` -DQT_QWS_IPAQ -DQWS -fno-exceptions -fno-rtti])
  fi
  VLC_ADD_PLUGINS([qte])
  NEED_QTE_MAIN=yes
  CPPFLAGS="${CPPFLAGS_save} ${CXXFLAGS_qte}"
  AC_CHECK_HEADERS(qt.h jpeglib.h, ,[
    AC_MSG_ERROR([echo "Cannot find QT Embedded development headers."])
  ] )
  CPPFLAGS="${CPPFLAGS_save}"
fi

dnl
dnl  Qt Video output module
dnl  (disabled by default)
dnl
dnl AC_ARG_ENABLE(qt_video,
dnl   [  --enable-qt_video            QT Video Output support (default disabled)])
dnl if test "${enable_qt_video}" = "yes"
dnl then
dnl  VLC_ADD_PLUGINS([qt_video])
dnl  VLC_ADD_LIBS([qt_video],[-L${QTDIR}/lib])
dnl  LDFLAGS="${LDFLAGS_save} ${LDFLAGS_qt_video}"
dnl   AC_CHECK_LIB(qt-mt,main,[
dnl    VLC_ADD_LIBS([qt_video],[-lqt-mt])
dnl  ],[
dnl    AC_CHECK_LIB(qt,main,[
dnl      VLC_ADD_LIBS([qt_video],[-lqt])
dnl    ])
dnl  ])
dnl  NEED_QTE_MAIN=yes
dnl  LDFLAGS="${LDFLAGS_save}"
dnl  VLC_ADD_CXXFLAGS([qt_video],[-I/usr/include/qt3 -I/usr/include/qt -I${QTDIR}/include])
dnl fi

dnl
dnl Roku HD1000 Video output module
dnl
AC_ARG_ENABLE(hd1000v,
  [  --enable-hd1000v        HD1000 Video Output module (default enabled on HD1000)])
if test "${enable_hd1000v}" != "no" -a "${CXX}" != "" &&
  (test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce" ||
   test "${enable_hd1000v}" = "yes"); then
  AC_LANG_PUSH([C++])
  AC_CHECK_HEADERS([cascade/graphics/CascadeScreen.h cascade/graphics/CascadeBitmap.h],
  [
    can_build_roku="yes"
  ],
  [
    can_build_roku="no"
    AC_MSG_WARN([Not building Roku HD1000 compatible video output])
  ])
  if test "$can_build_roku" = "yes"
  then
    VLC_ADD_PLUGINS([hd1000v])
    VLC_ADD_LIBS([hd1000v],[-lCascade -ldvbpsi -lmad])
  fi
  AC_LANG_POP([C++])
fi

dnl
dnl  Windows DirectX module
dnl

if test "${SYS}" = "mingw32" -o "${SYS}" = "mingwce" -o "${SYS}" = "cygwin"
then
  VLC_ADD_PLUGINS([panoramix])
fi

AC_ARG_ENABLE(directx,
  [  --enable-directx        Win32 DirectX support (default enabled on Win32)])
if test "${enable_directx}" != "no"
then
  if test "${SYS}" = "mingw32" -o "${SYS}" = "mingwce" -o "${SYS}" = "cygwin"
  then
    AC_ARG_WITH(directx,
    [    --with-directx=PATH   Win32 DirectX headers])
    if test -z "${with_directx}"
    then
      AC_CHECK_HEADERS(ddraw.h,
      [ VLC_ADD_PLUGINS([vout_directx aout_directx])
        VLC_ADD_LIBS([vout_directx],[-lgdi32])
      ])
      AC_CHECK_HEADERS(GL/gl.h,
      [ VLC_ADD_PLUGINS([glwin32])
        VLC_ADD_LIBS([glwin32],[-lopengl32 -lgdi32])
      ])
      AC_CHECK_HEADERS(d3d9.h,
      [ VLC_ADD_PLUGINS([direct3d])
        VLC_ADD_LIBS([direct3d],[-lgdi32])
      ])
    else
      AC_MSG_CHECKING(for directX headers in ${with_directx})
      if test -f ${with_directx}/ddraw.h
      then
        VLC_ADD_PLUGINS([vout_directx aout_directx])
        VLC_ADD_CPPFLAGS([vout_directx aout_directx],[-I${with_directx}])
        VLC_ADD_LIBS([vout_directx],[-lgdi32])
        AC_MSG_RESULT(yes)
      else
        AC_MSG_RESULT(no)
        AC_MSG_ERROR([Cannot find ${with_directx}/ddraw.h!])
      fi
    fi
  fi
fi

dnl
dnl  Linux framebuffer module
dnl
AC_ARG_ENABLE(fb,
  [  --enable-fb             Linux framebuffer support (default enabled on Linux)])
    if test "${enable_fb}" != "no"
    then
      AC_CHECK_HEADERS(linux/fb.h, [
        VLC_ADD_PLUGINS([fb])
      ])
    fi

dnl
dnl  Linux MGA module
dnl
AC_ARG_ENABLE(mga,
  [  --enable-mga            Linux kernel Matrox support (default disabled)],
  [ if test "${enable_mga}" = "yes"
    then
      VLC_ADD_PLUGINS([mga])
    fi ])

dnl
dnl  SVGAlib module
dnl
AC_ARG_ENABLE(svgalib,
  [  --enable-svgalib        SVGAlib support (default disabled)])
if test "${enable_svgalib}" = "yes"
then
  VLC_ADD_PLUGINS([svgalib])
  VLC_ADD_LIBS([svgalib],[-lvgagl -lvga])
fi

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

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

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

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

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

        dnl Restore flags
        CPPFLAGS="${CPPFLAGS_save}"
        LIBS="${LIBS_save}"

        if test "${have_directfb}" = "true"; then
            LIBS_mydirectfb="${LIBS_new} -lz -ldl -ldirectfb -lfusion -ldirect -lpthread"
            CPPFLAGS_mydirectfb="${CPPFLAGS_new}"
        fi
    else 
        dnl Look for directfb-config
        AC_PATH_PROG(DIRECTFB_CONFIG, directfb-config, no, ${PATH})
        if test "${DIRECTFB_CONFIG}" != "no"; then
            CPPFLAGS_mydirectfb="`${DIRECTFB_CONFIG} --cflags`"
            LIBS_mydirectfb="`${DIRECTFB_CONFIG} --libs`"
            have_directfb="true"
        else 
            dnl Trying with pkg-config
            PKG_CHECK_MODULES(DIRECTFB, directfb, [
                CPPFLAGS_mydirectfb="${DIRECTFB_CFLAGS}"
                LIBS_mydirectfb="${DIRECTFB_LIBS}"
                have_directfb="true"
                ], [have_directfb="false"])
        fi
    fi
    if test "${have_directfb}" = "true"; then
        VLC_ADD_PLUGINS([directfb])
        VLC_ADD_CPPFLAGS([directfb],[${CPPFLAGS_mydirectfb}])
        VLC_ADD_LIBS([directfb],[${LIBS_mydirectfb}])
    else 
        AC_MSG_ERROR([cannot find directfb headers and/or libraries ])
    fi
fi
 


dnl
dnl  GGI module
dnl
AC_ARG_ENABLE(ggi,
  [  --enable-ggi            GGI support (default disabled)])
if test "${enable_ggi}" = "yes"
then
  VLC_ADD_PLUGINS([ggi])
  VLC_ADD_LIBS([ggi],[-lggi])
  AC_ARG_WITH(ggi,
    [    --with-ggi=PATH       path to libggi],
    [ if test "${with_ggi}" != "no" -a -n "${with_ggi}"
      then
        VLC_ADD_CPPFLAGS([ggi],[-I${with_ggi}/include])
        VLC_ADD_LIBS([ggi],[-L${with_ggi}/lib])
      fi ])
fi

dnl
dnl  Glide module
dnl
AC_ARG_ENABLE(glide,
  [  --enable-glide          Glide (3dfx) support (default disabled)])
if test "${enable_glide}" = "yes"
then
  CFLAGS_save="${CFLAGS}"
  AC_ARG_WITH(glide,
    [    --with-glide=PATH     path to libglide],
    [ if test "${with_glide}" != "no" -a -n "${with_glide}"
      then
        VLC_ADD_CPPFLAGS([glide],[-I${with_glide}/include])
        VLC_ADD_LIBS([glide],[-L${with_glide}/lib])
        CFLAGS="$CFLAGS -I${with_glide}/include"
    fi ])
   CFLAGS="$CFLAGS -I/usr/include/glide"
   AC_CHECK_HEADER(glide.h,[   
      VLC_ADD_PLUGINS([glide])
      VLC_ADD_LIBS([glide],[-lglide2x -lm])
      VLC_ADD_CPPFLAGS([glide],[-I/usr/include/glide])
    ],[
      AC_MSG_ERROR([You don't have libglide. Install it or do not use --enable-glide])
     ])
   CFLAGS="${CFLAGS_save}"
fi

dnl
dnl  AA plugin
dnl
AC_ARG_ENABLE(aa,
  [  --enable-aa             aalib output (default disabled)])
if test "${enable_aa}" = "yes"
then
  AC_CHECK_HEADER(aalib.h,have_aa="true",have_aa="false")
  if test "${have_aa}" = "true"
  then
    VLC_ADD_PLUGINS([aa])
    VLC_ADD_LIBS([aa],[-laa])
  fi
fi

dnl
dnl  libcaca plugin
dnl
AC_ARG_ENABLE(caca,
  [  --enable-caca           libcaca output (default disabled)])
if test "${enable_caca}" = "yes"
then
  CACA_PATH="${PATH}"
  AC_ARG_WITH(caca-config-path,
    [    --with-caca-config-path=PATH caca-config path (default search in \$PATH)],
    [ if test "${with_caca_config_path}" != "no"
      then
        CACA_PATH="${with_caca_config_path}:${PATH}"
      fi ])
  AC_PATH_PROG(CACA_CONFIG, caca-config, no, ${CACA_PATH})
  if test "${CACA_CONFIG}" != "no"
  then
    VLC_ADD_PLUGINS([caca])
    VLC_ADD_CFLAGS([caca],[`${CACA_CONFIG} --cflags`])
    VLC_ADD_LIBS([caca],[`${CACA_CONFIG} --plugin-libs`])
  fi
fi

dnl
dnl  win32 GDI plugin
dnl
AC_ARG_ENABLE(wingdi,
  [  --enable-wingdi         Win32 GDI module (default enabled on Win32)])
if test "${enable_wingdi}" != "no"; then
  if test "${SYS}" = "mingw32" -o "${SYS}" = "cygwin"; then
    VLC_ADD_PLUGINS([wingdi])
    VLC_ADD_LIBS([wingdi],[-lgdi32])
  fi
  if test "${SYS}" = "mingwce"; then
    VLC_ADD_PLUGINS([wingdi wingapi])
  fi
fi

dnl
dnl  Audio plugins
dnl

AC_ARG_WITH(,[Audio plugins:])

dnl
dnl  OSS /dev/dsp module (enabled by default except on win32)
dnl
AC_ARG_ENABLE(oss,
  [  --enable-oss            Linux OSS /dev/dsp support (enabled on Linux)])

if test "${enable_oss}" != "no" &&
  (test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce" ||
   test "${enable_oss}" = "yes")
then
  AC_CHECK_HEADERS(soundcard.h sys/soundcard.h machine/soundcard.h, [
    VLC_ADD_PLUGINS([oss])
    AC_CHECK_LIB(ossaudio,main,VLC_ADD_LIBS([oss],[-lossaudio]))
  ])
fi

dnl
dnl  Esound module
dnl
AC_ARG_ENABLE(esd,
  [  --enable-esd            Esound library support (default disabled)],
  [if test "${enable_esd}" = "yes"
   then
     AC_PATH_PROG(ESD_CONFIG, esd-config, no)
     if test "${ESD_CONFIG}" != "no"
     then
       VLC_ADD_PLUGINS([esd])
       VLC_ADD_CFLAGS([esd],[`${ESD_CONFIG} --cflags`])
       VLC_ADD_LIBS([esd],[`${ESD_CONFIG} --libs`])
     fi
   fi])

dnl
dnl  Portaudio module
dnl
AC_ARG_ENABLE(portaudio,
  [  --enable-portaudio      Portaudio library support (default disabled)],
  [if test "${enable_portaudio}" = "yes"
   then
     VLC_ADD_PLUGINS([portaudio])
     VLC_ADD_CXXFLAGS([portaudio],[])
     if test "${SYS}" = "mingw32"; then
        VLC_ADD_LIBS([portaudio],[-lportaudio -lwinmm -lole32])
     else
        VLC_ADD_LIBS([portaudio],[-lportaudio])
     fi
   fi])

dnl
dnl  aRts module -- broken (freeze wxWidgets)
dnl
AC_ARG_ENABLE(arts,
 [  --enable-arts           aRts sound server (default disabled)],
 [if test "${enable_arts}" = "yes"
  then
    AC_PATH_PROG(ARTS_CONFIG, artsc-config, no)
    if test "${ARTS_CONFIG}" != "no"
    then
      VLC_ADD_PLUGINS([arts])
      VLC_ADD_CFLAGS([arts],[`${ARTS_CONFIG} --cflags`])
      VLC_ADD_LIBS([arts],[`${ARTS_CONFIG} --libs `])
    fi
  fi])

dnl
dnl  ALSA module
dnl
AC_ARG_ENABLE(alsa,
  [  --enable-alsa           ALSA sound support for Linux (default enabled)])
if test "${enable_alsa}" != "no"
then
  AC_CHECK_HEADER(alsa/asoundlib.h, AC_CHECK_LIB(asound, main, have_alsa="true", have_alsa="false"),have_alsa="false")
  if test "${have_alsa}" = "true"
  then
    CFLAGS="${CFLAGS_save}"
    AC_TRY_COMPILE([#define ALSA_PCM_NEW_HW_PARAMS_API
                    #define ALSA_PCM_NEW_SW_PARAMS_API
                    #include <alsa/asoundlib.h>],
       [snd_pcm_hw_params_get_period_time(0,0,0);],
        AC_DEFINE(HAVE_ALSA_NEW_API, 1, Define if ALSA is at least rc4))
    VLC_ADD_PLUGINS([alsa])
    VLC_ADD_LIBS([alsa],[-lasound -lm -ldl])
  else
    if test "${enable_alsa}" = "yes"; then
      AC_MSG_ERROR([Could not find ALSA development headers])
    fi
  fi
fi

dnl
dnl  win32 waveOut plugin
dnl
AC_ARG_ENABLE(waveout,
  [  --enable-waveout        Win32 waveOut module (default enabled on Win32)])
if test "${enable_waveout}" != "no"; then
  if test "${SYS}" = "mingw32" -o "${SYS}" = "cygwin"; then
    VLC_ADD_PLUGINS([waveout])
    VLC_ADD_LIBS([waveout],[-lwinmm])
  fi
  if test "${SYS}" = "mingwce"; then
    VLC_ADD_PLUGINS([waveout])
  fi
fi

dnl
dnl  CoreAudio plugin
dnl
AC_ARG_ENABLE(macosx-audio,
  [  --enable-macosx-audio   Mac OS X audio module (default enabled on MacOS X)])
if test "${enable_macosx-audio}" != "no" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx-audio}" = "yes")
then
  AC_CHECK_HEADERS(CoreAudio/CoreAudio.h, 
    [ VLC_ADD_BUILTINS([auhal])
      VLC_ADD_LDFLAGS([auhal],[-Wl,-framework,CoreAudio,-framework,AudioUnit,-framework,AudioToolbox,-framework,Carbon])
    ], [ AC_MSG_ERROR([cannot find CoreAudio headers]) ])
fi

dnl
dnl  Roku HD1000 audio
dnl
AC_ARG_ENABLE(hd1000a,
  [  --enable-hd1000a        HD1000 audio module (default enabled on HD1000)])
if test "${enable_hd1000a}" != "no" -a "${CXX}" != "" &&
  (test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce" ||
   test "${enable_hd1000a}" = "yes")
then
  AC_LANG_PUSH([C++])
  AC_CHECK_HEADERS(deschutes/libraries/hdmachinex225/PCMAudioPlayer.h, [
    VLC_ADD_PLUGINS([hd1000a])
    AC_CHECK_LIB(HDMachineX225,main,VLC_ADD_LIBS([hd1000a],[-lHDMachineX225]))  ])
  AC_LANG_POP([C++])
fi

dnl
dnl  JACK modules
dnl
AC_ARG_ENABLE(jack,
 [  --enable-jack           JACK audio I/O modules (default disabled)],,
 [enable_jack="no"])

AS_IF([test "${enable_jack}" != "no"], [
  AC_CHECK_HEADERS(jack/jack.h, [
    VLC_ADD_PLUGINS([access_jack jack])
    VLC_ADD_LIBS([access_jack jack],[-ljack])
  ],[AC_MSG_ERROR([cannot find JACK headers])])
])

dnl
dnl  CyberLink for C++ UPnP stack
dnl
AC_ARG_ENABLE(cyberlink,
  [  --enable-cyberlink      CyberLink for C++ UPnP stack (default disabled)])
  AS_IF([test "${enable_cyberlink}" = "yes" ], [
  AC_ARG_WITH(cyberlink-tree,
    [    --with-cyberlink-tree=PATH CyberLink for C++ tree for static linking])

  dnl
  dnl test for --with-cyberlink-tree
  dnl
  AS_IF([test ! -z "${with_cyberlink_tree}" -a "${CXX}" != ""], [
    AC_LANG_PUSH(C++)
    real_cyberlink_tree="`cd ${with_cyberlink_tree} 2>/dev/null && pwd`"
    AS_IF([test -z "${real_cyberlink_tree}"], [
      dnl  The given directory can't be found
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([cannot cd to ${with_cyberlink_tree}])
    ])
    CPPFLAGS_save="${CPPFLAGS}"
    CPPFLAGS_cyberlink="-I${real_cyberlink_tree}/include"
    CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_cyberlink}"
    AC_CHECK_HEADERS([cybergarage/upnp/MediaServer.h],
      [ VLC_ADD_CXXFLAGS([upnp_cc], [${CPPFLAGS_cyberlink}])
        VLC_ADD_PLUGINS([upnp_cc]) 
      ],[
        AC_MSG_ERROR([cannot find CyberLink for C++ headers])
      ])
    AC_MSG_CHECKING(for libclink.a in ${with_cyberlink_tree})
    AS_IF([test -f "${real_cyberlink_tree}/lib/unix/libclink.a"], [
      AC_MSG_RESULT(${real_cyberlink_tree}/lib/unix/libclink.a)
      dnl The mere fact that we have to make such an ugly check sucks
      AC_MSG_CHECKING(for XML parser to link CyberLink with)
      LIBS_save="$LIBS"
      LIBS_cclink="no"
      for l in "`xml2-config --libs`" -lexpat -lxerces-c; do
        LIBS="$LIBS_save ${real_cyberlink_tree}/lib/unix/libclink.a -lpthread $l"
        AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <cybergarage/upnp/media/player/MediaPlayer.h>
using namespace CyberLink;

class testclass : public SearchResponseListener, public MediaPlayer
{
    virtual void deviceSearchResponseReceived( SSDPPacket *)
    {
    }

    public:
      testclass (void)
      {
        addSearchResponseListener (this);
	start ();
      }
};
],[testclass l;])],[LIBS_cclink="$l"])
      done
      LIBS="${LIBS_save}"
      dnl should not happen - otherwise this needs fixing - hence FAILURE
      AS_IF([test "${LIBS_cclink}" = "no"],
        [AC_MSG_FAILURE([cannot find XML parser for CyberLink])])
      AC_MSG_RESULT([${LIBS_cclink}])
      VLC_ADD_LIBS([upnp_cc], [${real_cyberlink_tree}/lib/unix/libclink.a -lpthread ${LIBS_cclink}])
    ], [
      AC_MSG_RESULT(no)
      AC_MSG_ERROR([cannot find ${real_cyberlink_tree}/lib/unix/libclink.a, make sure you compiled CyberLink for C++ in ${with_cyberlink_tree}])
    ])
    CPPFLAGS="${CPPFLAGS_save}"
    AC_LANG_POP([C++])
  ])
])

dnl
dnl UPnP Plugin (Intel SDK)
dnl
AC_ARG_ENABLE(upnp,
  [  --enable-upnp           Intel UPnP SDK (default enabled)])

VLC_ADD_CXXFLAGS([upnp_intel], [ ])
AS_IF([test "x${enable_upnp}" != "xno"], [
  AC_CHECK_LIB([upnp], [UpnpInit], [has_upnp="yes"], [has_upnp="no"], [-lpthread])
  AS_IF([test "x${enable_upnp}" != "x" && test "${has_upnp}" = "no"], [
    AC_MSG_ERROR([cannot find Intel UPnP SDK (libupnp)])
  ])
  AS_IF([test "${has_upnp}" = "yes"], [
    VLC_ADD_LIBS([upnp_intel], [-lupnp -lixml])
  ])
], [
  has_upnp="no"
])

AS_IF([test "${has_upnp}" = "yes"], [
  VLC_ADD_PLUGINS([upnp_intel])
])


dnl
dnl  Interface plugins
dnl

AC_ARG_WITH(,[Interface plugins:])

dnl special case for BeOS
if test "${SYS}" = "beos"
then
    VLC_ADD_BUILTINS([beos])
fi

dnl
dnl Skins2 module
dnl
AC_ARG_ENABLE(skins2,
  [  --enable-skins2         Skins2 interface module (default disabled)])
if test "${enable_skins2}" = "yes" ||
  (test "${SYS}" != "darwin" && test "${SYS}" != "beos" &&
   test "${SYS}" != "mingwce" && test "${enable_skins2}" != "no"); then

  dnl test for the required libraries
  skins2_missing_lib="no"

  dnl freetype
  if test "${FREETYPE_CONFIG}" != "no"; then
    VLC_ADD_CPPFLAGS([skins2],[`${FREETYPE_CONFIG} --cflags`])
    VLC_ADD_LIBS([skins2],[`${FREETYPE_CONFIG} --libs`])
  else
    skins2_missing_lib="yes"
    if test "${enable_skins2}" = "yes"; then
      AC_MSG_ERROR([Could not find freetype (required for skins2)])
    fi
  fi

  if test "${skins2_missing_lib}" = "no" && (test "${SYS}" = "mingw32" -o "${SYS}" = "cygwin"); then
    VLC_ADD_PLUGINS([skins2])
    ALIASES="${ALIASES} svlc"
    VLC_ADD_CPPFLAGS([skins2],[-U_OFF_T_ -U_off_t -Imodules/gui/skins2 -DWIN32_SKINS])
    VLC_ADD_CXXFLAGS([skins2],[-O2 -fno-rtti])
    VLC_ADD_LIBS([skins2],[-loleaut32 -lwinspool -lwinmm -lshell32 -lctl3d32 -ladvapi32 -lwsock32 -lgdi32 -lcomdlg32 -lole32 -luuid -lcomctl32])

  else if test "${skins2_missing_lib}" = "no" && (test "${SYS}" = "darwin"); then
    VLC_ADD_PLUGINS([skins2])
    ALIASES="${ALIASES} svlc"
    VLC_ADD_CPPFLAGS([skins2],[-Imodules/gui/skins2 -DMACOSX_SKINS])
    VLC_ADD_CXXFLAGS([skins2],[-O2 -fno-rtti])
    VLC_ADD_LDFLAGS([skins2],[-Wl,-framework,Carbon])

  else if test "${skins2_missing_lib}" = "no"; then
    VLC_ADD_PLUGINS([skins2])
    ALIASES="${ALIASES} svlc"
    VLC_ADD_CPPFLAGS([skins2],[-Imodules/gui/skins2 ${X_CFLAGS} -DX11_SKINS])
    VLC_ADD_CXXFLAGS([skins2],[-O2 -fno-rtti])
    VLC_ADD_LIBS([skins2],[${X_LIBS} ${X_PRE_LIBS} -lXext -lX11])
  fi fi fi
fi


dnl dnl
dnl dnl  Gtk+ module
dnl dnl
dnl AC_ARG_ENABLE(gtk,
dnl   [  --enable-gtk            Gtk+ support (default enabled)])
dnl if test "${enable_gtk}" != "no"
dnl then
dnl   GTK_PATH="${PATH}"
dnl   AC_ARG_WITH(gtk-config-path,
dnl     [    --with-gtk-config-path=PATH gtk-config path (default search in \$PATH)],
dnl     [ if test "${with_gtk_config_path}" != "no"
dnl       then
dnl         GTK_PATH="${with_gtk_config_path}:${PATH}"
dnl       fi ])
dnl   # look for gtk-config
dnl   AC_PATH_PROG(GTK12_CONFIG, gtk12-config, no, ${GTK_PATH})
dnl   GTK_CONFIG=${GTK12_CONFIG}
dnl   if test "${GTK_CONFIG}" = "no"
dnl   then
dnl     AC_PATH_PROG(GTK_CONFIG, gtk-config, no, ${GTK_PATH})
dnl   fi
dnl   if test "${GTK_CONFIG}" != "no"
dnl   then
dnl     if expr 1.2.0 \> `${GTK_CONFIG} --version` >/dev/null
dnl     then
dnl       AC_MSG_ERROR([Your development package for Gtk+ is too old, you need at least version 1.2.0. Please upgrade and try again. Alternatively you can also configure with --disable-gtk.])
dnl     fi
dnl     if test "${SYS}" != "mingw32"; then
dnl       VLC_ADD_CFLAGS([gtk],[`${GTK_CONFIG} --cflags gtk gthread`])
dnl       VLC_ADD_LIBS([gtk],[`${GTK_CONFIG} --libs gtk gthread | sed 's,-rdynamic,,'`])
dnl     else
dnl       VLC_ADD_CFLAGS([gtk],[`${GTK_CONFIG} --cflags gtk`])
dnl       VLC_ADD_LIBS([gtk],[`${GTK_CONFIG} --libs gtk | sed 's,-rdynamic,,'`])
dnl     fi
dnl     # now look for the gtk.h header
dnl     CPPFLAGS="${CPPFLAGS_save} ${CFLAGS_gtk}"
dnl     ac_cv_gtk_headers=yes
dnl     AC_CHECK_HEADERS(gtk/gtk.h glib.h gdk/gdk.h, , [
dnl       ac_cv_gtk_headers=no
dnl       echo "Cannot find gtk development headers."
dnl     ])
dnl     if test "${ac_cv_gtk_headers}" = "yes"
dnl     then
dnl       VLC_ADD_PLUGINS([gtk])
dnl       if test "${SYS}" != "mingw32"; then
dnl         NEED_GTK_MAIN=yes
dnl       fi
dnl       ALIASES="${ALIASES} gvlc"
dnl     fi
dnl     CPPFLAGS="${CPPFLAGS_save}"
dnl   fi
dnl fi
dnl 
dnl
dnl  Gtk+2 module ! Disabled for now as it is unusable and confuses users
dnl
dnl AC_ARG_ENABLE(gtk2,
dnl   [  --enable-gtk2           Gtk2 support (default disabled)])
dnl if test "${enable_gtk2}" = "yes"
dnl then
dnl   PKG_CHECK_MODULES(GTK2, [gtk+-2.0 >= 2.0.0, gthread-2.0])
dnl   VLC_ADD_CFLAGS([gtk2],[${GTK2_CFLAGS}])
dnl   VLC_ADD_LIBS([gtk2],[${GTK2_LIBS}])
dnl   VLC_ADD_PLUGINS([gtk2])
dnl   if test "${SYS}" != "mingw32"; then
dnl     NEED_GTK2_MAIN=yes
dnl   fi
dnl fi

dnl
dnl  PDA Gtk+2 module
dnl
AC_ARG_ENABLE(pda,
  [  --enable-pda            PDA interface needs Gtk2 support (default disabled)])
if test "${enable_pda}" = "yes"
then
  PKG_CHECK_MODULES(GTK2, [gtk+-2.0 >= 2.0.0, gthread-2.0])