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frontier.c

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  • configure.in 17,89 Kio
    AC_PREREQ(2.57)
    
    ######################
    # aegisub version info
    ######################
    m4_define([aegisub_major_version], [2])
    m4_define([aegisub_minor_version], [1])
    m4_define([aegisub_version], [aegisub_major_version.aegisub_minor_version-dev])
    
    
    ###################
    # Required packages
    ###################
    m4_define([ffmpeg_required_version], [1])
    m4_define([portaudio_required_version], [1])
    m4_define([pulseaudio_required_version], [1])
    
    m4_define([pkgconfig_required_version], [0.20])
    m4_define([libass_required_version], [0.9.1])
    m4_define([freetype_required_version], [9.7.0])
    m4_define([fontconfig_required_version], [2.4])
    m4_define([perl_required_version], [5.004])
    m4_define([ruby_required_version], [1.8])
    m4_define([lua_auto4_required_version], [5.1])
    m4_define([lua_auto3_required_version], [5.0])
    
    
    #######
    # Setup
    #######
    AC_INIT([Aegisub], [aegisub_version],, [aegisub])
    AC_CONFIG_SRCDIR([aegisub/main.cpp])
    AM_INIT_AUTOMAKE
    AC_CONFIG_HEADER([aegisub/posix/acconf.h])
    AC_GNU_SOURCE
    AC_CANONICAL_HOST
    
    
    ########################
    # Configurable variables
    ########################
    aegisubdatadir="$datadir/aegisub/2.1"
    AC_SUBST(aegisubdatadir)
    
    
    ####################
    # Check for programs
    ####################
    CHECK_GNU_MAKE
    AC_PROG_CC
    AC_PROG_CXX
    AC_LANG(C++)
    AC_PROG_LIBTOOL
    AC_PROG_INSTALL
    PKG_PROG_PKG_CONFIG([0.20])
    
    
    #################
    # Developers only
    #################
    AM_MAINTAINER_MODE
    
    AC_ARG_VAR([DEBUG_FLAGS], [Debug flag to use with --enable debug (default: -g)])
    if test -z "$DEBUG_FLAGS"; then
      DEBUG_FLAGS="-g";
    fi
    
    AC_MSG_CHECKING([whether to turn on debugging])
    AC_ARG_ENABLE(debug, [  --enable-debug          turn on debugging (default=no)])
    if test "$enable_debug" = "yes"; then
      AC_MSG_RESULT([yes ($DEBUG_FLAGS)])
      CPPFLAGS="$DEBUG_FLAGS $CPPFLAGS"
    else
      AC_MSG_RESULT([no])
    fi
    
    AC_ARG_ENABLE(build-dist)
    if test "$enable_build_dist" = "yes"; then
      SVN_VERSION=`svnversion .`
      PACKAGE_STRING="${PACKAGE_STRING}-r$SVN_VERSION"
      PACKAGE_VERSION="${PACKAGE_VERSION}-r$SVN_VERSION"
      VERSION="${VERSION}-r$SVN_VERSION"
    fi
    
    
    ###################################################
    # Check for pthreads and setup variables / compiler
    ###################################################
    ACX_PTHREAD([], [AC_MSG_FAILURE([aegisub requires pthreads])])
    #LIBS="$PTHREAD_LIBS $LIBS";
    #CFLAGS="$CFLAGS $PTHREAD_CFLAGS";
    CC="$PTHREAD_CC";
    
    
    ######################
    # Check compiler flags
    ######################
    AC_C_FLAG([-Wall])
    AC_C_FLAG([-O2])
    AC_C_FLAG([-Wextra],[AC_C_FLAG([-W])])
    AC_C_FLAG([-Wno-unused-parameter])
    AC_C_FLAG([-std=gnu99])
    AC_CXX_FLAG([-Wall])
    AC_CXX_FLAG([-Wextra],[AC_CXX_FLAG([-W])])
    AC_CXX_FLAG([-Wno-unused-parameter])
    AC_CXX_FLAG([-Wno-long-long])
    AC_CXX_FLAG([-O2])
    AC_CXX_FLAG([-fpermissive])
    AC_CXX_FLAG([-fno-strict-aliasing])
    AC_CXX_FLAG([-std=c++98])
    
    
    ######################################
    # Check Headers / Features / Libraries
    ######################################
    AC_PATH_XTRA
    AC_HEADER_STDC
    AC_HEADER_STDBOOL
    AC_C_CONST
    AC_C_INLINE
    AC_C_VOLATILE
    AC_CHECK_LIB([m], [main])
    AC_LIBTOOL_DLOPEN_SELF
    AC_MSG_CHECKING([[whether preprocessor supports #pragma once]])
    AC_PREPROC_IFELSE(
      [AC_LANG_PROGRAM([[#pragma once]])],
      [
        AC_MSG_RESULT([yes])
        AC_DEFINE([HAVE_PRAGMA_ONCE], [1], [Preprocessor support for #pragma once])
      ],
    [AC_MSG_RESULT([no])])
    
    AX_OPENMP([], [with_openmp="no"])
    AM_CONDITIONAL([HAVE_OPENMP], [test "$with_openmp" != "no"])
    AC_SUBST(OPENMP_CXXFLAGS)
    
    
    #################
    # Audio Providers
    #################
    
    AC_ARG_WITH(alsa, [  --without-alsa          build without ALSA audio provider. (default: auto)], alsa_disabled="(disabled)")
    if test "x$with_alsa" != xno; then
      AC_CHECK_LIB([asound], [snd_pcm_open], [ALSA_LDFLAGS="-lasound"; found_audio=yes; with_alsa=yes], [with_alsa=no])
    fi
    if test "$with_alsa" = "yes"; then
      AC_DEFINE(WITH_ALSA, 1, [Enable ALSA Support])
    fi
    
    AC_SUBST(ALSA_LDFLAGS)
    AM_CONDITIONAL([HAVE_ALSA], [test "$with_alsa" != "no"])
    
    AC_ARG_WITH(portaudio,[  --without-portaudio     build without PortAudio audio provider.
                              (default: auto)], portaudio_disabled="(disabled)")
    
    if test "x$with_portaudio" != xno; then
      aegisub_save_CPPFLAGS="$CPPFLAGS"
      CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS $PTHREAD_LIBS"
      AC_CHECK_LIB([portaudio], [Pa_Initialize], [PORTAUDIO_LDFLAGS="-lportaudio"; found_audio=yes; with_portaudio=yes], [with_portaudio=no])
    fi
    
    if test "x$with_portaudio" != xno; then
      AC_CHECK_LIB([portaudio], [Pa_GetStreamTime], [LIBS="-lportaudio"], [with_portaudio_getstreamtime=no])
        if test "x$with_portaudio_getstreamtime" != xno; then
         AC_DEFINE(HAVE_PA_GETSTREAMTIME, 1, [Define to 1 if Pa_GetStreamTime is available in PortAudio])
      fi
    CPPFLAGS="$aegisub_save_CPPFLAGS"
    fi
    
    if test "$with_portaudio" = "yes"; then
      AC_DEFINE(WITH_PORTAUDIO, 1, [Enable PortAudio Audio Provider])
    fi
    
    AC_SUBST(PORTAUDIO_LDFLAGS)
    AM_CONDITIONAL([HAVE_PORTAUDIO], [test "$with_portaudio" != "no"])
    
    AC_ARG_WITH(pulseaudio,[  --without-pulseaudio    build without PulseAudio audio provider.
                              (default: auto)], pulseaudio_disabled="(disabled)")
    if test "x$with_pulseaudio" != xno; then
      PKG_CHECK_MODULES(LIBPULSE, libpulse >= 0.5, [found_audio=yes; with_pulseaudio=yes], [with_pulseaudio=no])
    fi
    AM_CONDITIONAL([HAVE_PULSEAUDIO], [test "$with_pulseaudio" != "no"])
    if test "$with_pulseaudio" = "yes"; then
      AC_DEFINE(WITH_PULSEAUDIO, 1, [Enable PulseAudio support])
    fi
    
    AC_ARG_WITH(openal,[  --without-openal    build without OpenAL audio provider.
                              (default: auto)], openal_disabled="(disabled)")
    if test "x$with_openal" != xno; then
      PKG_CHECK_MODULES(OPENAL, libpulse >= 0.0.8, [found_audio=yes; with_openal=yes], [with_openal=no])
    fi
    AM_CONDITIONAL([HAVE_OPENAL], [test "$with_openal" != "no"])
    if test "$with_openal" = "yes"; then
      AC_DEFINE(WITH_OPENAL, 1, [Enable OpenAL support])
    fi
    
    
    #################
    # Video Providers
    #################
    
    AC_ARG_WITH(ffmpeg, [  --without-ffmpeg        build without FFMPEG video provider.. (default: auto)], ffmpeg_disabled="(disabled)")
    
    if test "$with_ffmpeg" != "no"; then
      AC_CHECK_LIB([avcodec], [avcodec_init],AVCODEC_LDFLAGS="-lavcodec", [with_ffmpeg=no])
      AC_CHECK_LIB([avformat], [av_read_frame],AVFORMAT_LDFLAGS="-lavformat", [with_ffmpeg=no])
      AC_CHECK_LIB([avformat], [sws_scale],[with_swscale="yes"], [with_swscale="no"])
    
      if test "$with_swscale" = "no"; then
        AC_CHECK_LIB([swscale], [sws_scale],[SWSCALE_LDFLAGS="-lswscale"; with_swscale_lib="yes"], [with_swscale_lib="no"])
      fi
    
      if test "$with_swscale" = "yes" || test "$with_swscale_lib" = "yes"; then
        with_ffmpeg="yes";
      else 
        with_ffmpeg="no";
      fi
    
      if test "$with_ffmpeg" = "yes"; then
        found_video_provider=yes
        with_ffmpeg="yes"
        AC_DEFINE(WITH_FFMPEG, 1, [Enable FFMPEG Video Provider])
      fi
    fi
    
    AC_SUBST(SWSCALE_LDFLAGS)
    AC_SUBST(AVCODEC_LDFLAGS)
    AC_SUBST(AVFORMAT_LDFLAGS)
    AM_CONDITIONAL([HAVE_FFMPEG], [test "$with_ffmpeg" != "no"])
    
    
    
    
    ###################
    # Subtitle Provider
    ###################
    AC_ARG_WITH(libass, [  --without-libass        disable libass (default=autodetect)],libass_disabled="(disabled)")
    
    if test "x$with_libass" != xno; then
      PKG_CHECK_MODULES(LIBASS, libass >= 0.9.1)
    
      aegisub_save_LDFLAGS="$LDFLAGS"
      LDFLAGS="$LIBASS_LIBS"
      AC_CHECK_LIB([ass], [ass_read_styles],[LIBASS_LIBS="$LIBASS_LIBS]", with_libass=no)
      LDFLAGS="$aegisub_save_LDFLAGS"
    
      aegisub_save_CPPFLAGS="$CPPFLAGS"
      CPPFLAGS="$LIBASS_CFLAGS"
      AC_CHECK_HEADER([ass/ass.h],[LIBASS_CFLAGS="$LIBASS_CFLAGS"],with_libass="no")
      CPPFLAGS="$aegisub_save_CPPFLAGS"
    fi
    
    if test "$with_libass" != "no"; then
      AC_DEFINE(WITH_LIBASS, 1, [Enable libass Subtitle Provider])
      with_libass="yes"
    fi
    
    AC_SUBST(LIBASS_LIBS)
    AC_SUBST(LIBASS_CFLAGS)
    
    AM_CONDITIONAL([HAVE_LIBASS], [test "$with_libass" != "no" ])
    
    
    
    ##############################
    # Program Support and Features
    ##############################
    AC_CHECK_HEADER([wchar.h],,[AC_MSG_FAILURE([aegisub requires wide character support])])
    
    AX_CHECK_GL
    if test ! "$GL_LIBS"; then
    	AC_MSG_FAILURE([aegisub requires GL support.])
    fi
    AC_SUBST(GL_CFLAGS)
    AC_SUBST(GL_LIBS)
    
    PKG_CHECK_MODULES(FREETYPE, freetype2 >= 9.7.0,
      AC_DEFINE(WITH_FREETYPE2, 1, [Enable FreeType 2 support.]),
      [AC_MSG_FAILURE([aegisub requires >= FreeType2 2.1.9])])
    
    PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.4,
      AC_DEFINE(WITH_FONTCONFIG, 1, [Enable FontConfig support.]),
      [AC_MSG_FAILURE([aegisub requires >= fontconfig >= 2.4])])
    
    
    AC_ARG_WITH(hunspell, [  --without-hunspell      build without hunspell support], hunspell_disabled="(disabled)")
    if test "$with_hunspell" != "no"; then
      AC_CHECK_LIB([hunspell], [main],[HUNSPELL_LDFLAGS="-lhunspell"; with_hunspell="yes"], [with_hunspell=no])
    fi
    
    if test "$with_hunspell" = "yes"; then
      AC_DEFINE(WITH_HUNSPELL, 1, [Enable hunspell support])
    fi
    AM_CONDITIONAL([HAVE_HUNSPELL], [test "$with_hunspell" != "no"])
    AC_SUBST(HUNSPELL_LDFLAGS)
    
    
    
    AC_ARG_WITH(univchardet, [  --without-univchardet      build without universalchardet support], univchardet_disabled="(disabled)")
    if test "$with_univchardet" != "no"; then
      with_univchardet="yes"
      AC_DEFINE(WITH_UNIVCHARDET, 1, [Enable universalchardet support])
    else
      with_univchardet="no"
    fi
    AM_CONDITIONAL([HAVE_UNIVCHARDET], [test "$with_univchardet" != "no"])
    
    
    
    
    
    
    ############
    # Automation
    ############
    AC_ARG_WITH(lua,
    [  --without-lua           build without lua 5.1 (auto3)], [lua_disabled="(disabled)"])
    
    AC_ARG_WITH(lua-lib,
    [  --with-lua-lib=PREFIX   PATH location of lua 5.1 library], [lua_lib_dir="-L$withval"])
    
    AC_ARG_WITH(lua-include,
    [  --with-lua-include=PREFIX
                              PATH location of lua 5.1 includes], [lua_include_dir="-I$withval"])
    
    if test "$with_lua" != no; then
      aegisub_save_LDFLAGS="$LDFLAGS"
      
      LDFLAGS="$LDFLAGS $lua_lib_dir"
      AC_CHECK_LIB([lua], [lua_call], LUA_LDFLAGS="$lua_lib_dir -llua", with_lua_lib="no")
      LDFLAGS="$aegisub_save_LDFLAGS"
    
      aegisub_save_CPPFLAGS="$CPPFLAGS"
      CPPFLAGS="$CPPFLAGS $lua_include_dir"
      AC_CHECK_HEADER([lua.h],[LUA_CPPFLAGS="$lua_include_dir"], with_lua_include="no")
      CPPFLAGS="$aegisub_save_CPPFLAGS"
    
    fi
    
    if (test "$with_lua_lib" != "no" || ! test "$have_lua_include" != "no") && test "$with_lua" != "no"; then
      with_auto4="yes"
      with_automation="yes"
      AC_DEFINE(WITH_AUTO4_LUA, 1, [Enable Automation (auto4), requires lua])
    else
      with_auto4="no"
    fi
    
    AC_SUBST(LUA_CPPFLAGS)
    AC_SUBST(LUA_LDFLAGS)
    AM_CONDITIONAL([HAVE_AUTO4_LUA], [test "$with_auto4" != "no"])
    
    
    AC_ARG_WITH(perl, [  --without-perl          build without PERL Automation. (default: auto)], perl_disabled="(disabled)")
    AC_ARG_WITH(perl-bin, [  --with-perl-bin=PATH    location of PERL binary.. (default: $PATH)], [WITH_PERL_BIN="$withval"])
    
    if test -z "$perl_disabled"; then
      if test -z "$WITH_PERL_BIN"; then
        AC_PATH_PROG([PERL_BIN],perl,no)
      else
        PERL_BIN="$WITH_PERL_BIN"
      fi
    
    # XXX: add a --with-perlconsole flag.
    # AC_DEFINE(WITH_PERLCONSOLE, 1, [Enable PERL Console support (for debugging purposes)])
    
      if test "$PERL_BIN" != "no"; then
        AC_MSG_CHECKING([checking for perl version >= 5.004])
        if $PERL_BIN -e 'require 5.004'; then
          AC_MSG_RESULT([yes])
          with_perl=yes
          with_automation="yes"
          AC_DEFINE(WITH_PERL, 1, [Enable PERL support.])
          AC_MSG_CHECKING([checking $PERL_BIN clfags])
          PERL_CFLAGS=`$PERL_BIN -MExtUtils::Embed -eccflags -eperl_inc`
          AC_MSG_RESULT([$PERL_CFLAGS])
    
          AC_MSG_CHECKING([checking $PERL_BIN libs])
          PERL_LDFLAGS=`$PERL_BIN -MExtUtils::Embed -eldopts`
          AC_MSG_RESULT([$PERL_LDFLAGS])
    
        else
          AC_MSG_RESULT([yes])
          with_perl=no
        fi
      fi
    fi
    
    AC_SUBST(PERL_CFLAGS)
    AC_SUBST(PERL_LDFLAGS)
    
    AM_CONDITIONAL([HAVE_AUTO4_PERL], [test "$with_perl" != "no"])
    
    
    AC_ARG_WITH(ruby, [  --without-ruby          build without Ruby Automation. (default: auto)], ruby_disabled="(disabled)")
    AC_ARG_WITH(ruby-bin, [  --with-ruby-bin=PATH    location of RUBY binary.. (default: $PATH)], [WITH_RUBY_BIN="$withval"])
    
    if test -z "$ruby_disabled"; then
      if test -z "$WITH_RUBY_BIN"; then
        AC_PATH_PROG([RUBY_BIN],ruby,no)
      else
        RUBY_BIN="$WITH_RUBY_BIN"
      fi
    
      if test "$RUBY_BIN" != "no"; then
        AC_MSG_CHECKING([checking for ruby version >= 1.8])
        if $RUBY_BIN -r rbconfig -e 'if Config::CONFIG@<:@"ruby_version"@:>@.to_f >= 1.8  then exit(0) else exit(1) end' ; then
          AC_MSG_RESULT([yes])
          with_ruby=yes
          with_automation="yes"
          AC_DEFINE(WITH_RUBY, 1, [Enable RUBY Automation.])
    
          AC_MSG_CHECKING([checking $RUBY_BIN -r rbconfig archdir, cflags])
          RUBY_CFLAGS=`$RUBY_BIN -r rbconfig -e "printf(\"-I%s %s\", Config::CONFIG@<:@'archdir'@:>@, Config::CONFIG@<:@'CFLAGS'@:>@)"`
          AC_MSG_RESULT([$RUBY_CFLAGS])
    
          AC_MSG_CHECKING([checking $RUBY_BIN rbconfig libs])
          RUBY_LDFLAGS=`$RUBY_BIN -r rbconfig -e "print Config::CONFIG@<:@'LIBRUBYARG'@:>@"`
          AC_MSG_RESULT([$RUBY_LDFLAGS])
    
        else
          AC_MSG_RESULT([yes])
          with_ruby=no
        fi
      fi
    fi
    
    AC_SUBST(RUBY_CFLAGS)
    AC_SUBST(RUBY_LDFLAGS)
    AM_CONDITIONAL([HAVE_AUTO4_RUBY], [test "$with_ruby" != "no"])
    
    
    AC_ARG_WITH(lua50-lib,
    [  --with-lua50-lib=PREFIX PATH location of lua 5.0 library
                              (required for auto3 support)], [lua50_lib_dir="-L$withval"])
    AC_ARG_WITH(lua50-include,
    [  --with-lua50-include=PREFIX
                              PATH location of lua 5.0 includes
                              (required for auto3 support)], [lua50_include_dir="-I$withval"])
    
    
    #if test -z "$lua50-lib-dir"; then
    #  AC_MSG_WARN([You must supply both --with-lua50-lib AND --with-lua50-include.])
    #fi
    
    if ! test -z "$lua50_lib_dir" && ! test -z "$lua50_include_dir"; then
      aegisub_save_LDFLAGS="$LDFLAGS"
      LDFLAGS="$lua50_lib_dir -llua"
      AC_CHECK_LIB([lualib], [luaopen_base], [LUA50_LDFLAGS="$lua50_lib_dir -llua -llualib"; lua50_lib="yes"], [lua50_lib="no"])
      LDFLAGS="$aegisub_save_LDFLAGS"
    
      aegisub_save_CPPFLAGS="$CPPFLAGS"
      CPPFLAGS="$lua50_include_dir"
      AC_CHECK_HEADER([lua.h],[LUA50_CPPFLAGS="$lua50_include_dir"; lua50_include="yes"],[lua50_include="no"])
      CPPFLAGS="$aegisub_save_CPPFLAGS"
    fi
    
    if test "$lua50_lib" = "yes" && test "$lua50_include" = "yes"; then
      with_auto3="yes"
      AC_DEFINE(WITH_AUTO3, 1, [Enable Automation (auto3, DEPRECIATED!), requires lua 5.0])
    else
      with_auto3="no"
    fi
    
    AM_CONDITIONAL([HAVE_AUTO3_LUA], [test "$with_auto3" != "no"])
    AC_SUBST(LUA50_CPPFLAGS)
    AC_SUBST(LUA50_LDFLAGS)
    
    if test "$with_automation" = "yes"; then
      AC_DEFINE(WITH_AUTOMATION, 1, [Enable Automation support, requires any automation language.])
    fi  
    
    AM_CONDITIONAL([HAVE_AUTOMATION], [test "$with_auto3" = "yes"])
    
    
    ################
    # Widget support
    ################
    AM_OPTIONS_WXCONFIG
    AM_PATH_WXCONFIG(2.8.1, [have_wxconfig=1], [have_wxconfig=0], [std,gl,stc])
    
    if test "$have_wxconfig" != 1; then
      AC_MSG_FAILURE([
    wxWidgets detection failed, please set --with-wx* or add
    the libraries to your LDFLAGS, CXX/CFLAGS.
      ])
    fi
    #CPPFLAGS="$CPPFLAGS $WX_CPPFLAGS"
    #CXXFLAGS="$CXXFLAGS $WX_CXXFLAGS_ONLY"
    #CFLAGS="$CFLAGS $WX_CFLAGS_ONLY"
    
    
    aegisub_save_CPPLAGS="$CPPLAGS"
    CPPFLAGS="$WX_CFLAGS"
    
    AC_MSG_CHECKING([wxWidgets OpenGL support])
    AC_TRY_COMPILE([#include <wx/glcanvas.h>],
      [wxGLCanvas *canvas;],
      with_wxgl=yes, with_wxgl=no)
    AC_MSG_RESULT($with_wxgl)
    
    if test "$with_wxgl" = "no"; then
      AC_MSG_FAILURE([wxWidgets OpenGL support missing])
    fi
    
    AC_MSG_CHECKING([wxWidgets StyledTextCtrl support])
    AC_TRY_COMPILE([#include <wx/stc/stc.h>],
      [wxStyledTextCtrl *canvas;],
      with_wxstc=yes, with_wxstc=no)
    AC_MSG_RESULT($with_wxstc)
    
    if test "$with_wxstc" = "no"; then
      AC_MSG_FAILURE([wxWidgets missing StyledTextCtrl])
    fi
    
    CPPFLAGS="$aegisub_save_CPPFLAGS"
    
    
    
    
    ################################################
    # Internationalisation support (keep this last!)
    ################################################
    AC_PROG_INTLTOOL
    AM_GLIB_GNU_GETTEXT
    
    GETTEXT_PACKAGE=aegisub21
    AC_SUBST(GETTEXT_PACKAGE)
    AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE",
                       [The prefix for our gettext translation domains.])
    
    
    AC_OUTPUT([
    Makefile
    aegisub/Makefile
    aegisub/bitmaps/Makefile
    aegisub/posix/Makefile
    universalchardet/Makefile
    auto3/Makefile
    automation/Makefile
    po/Makefile.in
    m4macros/Makefile
    ])
    
    
    if test -z "$found_audio"; then
      AC_MSG_NOTICE([
    
    ***********************************************************************
    * No supported audio player interface was found on your system.
    * If you want audio support in Aegisub you need to install one of
    * these libraries:
    *  - PulseAudio
    *    * http://pulseaudio.org/
    *  - ALSA (Linux only) (Currently broken)
    *    * http://www.alsa-project.org/
    *  - PortAudio (version 18 only, version 19 is not compatible)
    *    * http://www.portaudio.com/
    ***********************************************************************
      ])
    fi
    
    if test -z "$found_video_provider"; then
      AC_MSG_NOTICE([
    
    ***********************************************************************
    * No supported video/audio reader interface was found on your system.
    * You will not be able to open any video or audio files in Aegisub
    * unless you install a supported video/audio provider.
    * You will however still be able to open "dummy" video, ie. a blank,
    * virtual video clip with subtitles overlaid.
    * Currently we only support one video/audio provider on non-Windows
    * systems:
    *  - FFmpeg (libavcodec + libavformat)
    *    * http://ffmpeg.mplayerhq.hu/
    ***********************************************************************
      ])
    fi
    
    
    AC_MSG_RESULT([
    Scripting Engines:
      auto4 Perl:            $with_perl $perl_disabled
      auto3:                 $with_auto3
      auto4:                 $with_auto4 $lua_disabled
      auto4 Ruby:            $with_ruby $ruby_disabled
    
    Audio Providers:
      ALSA:                  $with_alsa $alsa_disabled
      OpenAL:                $with_openal $openal_disabled
      PortAudio:             $with_portaudio $portaudio_disabled
      PulseAudio:            $with_pulseaudio $pulseaudio_disabled
    
    Video Providers
      ffmpeg:                $with_ffmpeg $ffmpeg_disabled
    
    Subtitle Providers:
      asa:                   $with_asa
      libass:                $with_libass
    
    Misc Packages:
      hunspell:              $with_hunspell $hunspell_disabled
      universalchardet:      $with_univchardet $univchardet_disabled
    ]);