Aegisub/aegisub/configure.in

AC_PREREQ(2.57)

######################
# aegisub version info 
######################
m4_define([aegisub_version_major], [2])
m4_define([aegisub_version_minor], [2])
m4_define([aegisub_version_revision], [0])
m4_define([aegisub_version], [aegisub_version_major.aegisub_version_minor.aegisub_version_revision-dev])
m4_define([aegisub_version_data], [aegisub_version_major.aegisub_version_minor])


###################
# Required packages
###################
m4_define([libavcodec_required_version], [52.27.0])  # (r18642)
m4_define([libavformat_required_version], [52.32.0]) # (r18642)
m4_define([libavutil_required_version], [50.3.0])    # (r18642)
m4_define([libpostproc_required_version], [51.2.0])  # (r18642)
m4_define([libswscale_required_version], [0.7.1])    # (r18642)

m4_define([lua_auto4_required_version], [5.1])
m4_define([portaudio_required_version], [19])
m4_define([pulseaudio_required_version], [0.5])

m4_define([fontconfig_required_version], [2.4])
m4_define([freetype_required_version], [9.7.0])
m4_define([pkgconfig_required_version], [0.20])
m4_define([wx_required_version], [2.9.0])


#######
# Setup
#######
AC_INIT([Aegisub], [aegisub_version],, [aegisub])
AC_CONFIG_SRCDIR([src/main.cpp])
AM_INIT_AUTOMAKE
AC_CONFIG_HEADER([acconf.h])
AC_GNU_SOURCE
AC_CANONICAL_HOST

###########################
# Check target architecture
###########################

AC_MSG_CHECKING([for target architecture])
case x"$target" in
  xNONE | x)
    target_or_host="$host" ;;
  *)
    target_or_host="$target" ;;
esac
AC_MSG_RESULT([$target_or_host])

case "$target_or_host" in
  *-*-darwin*)
    build_darwin="yes"
  ;;

  *-*-linux*)
    build_linux="yes"
  ;;

  *)
    build_default="yes"
    ;;
esac

case "$target_or_host" in
  ppc-*-* | powerpc-*)
    arch_ppc="yes"
  ;;

  i*86-*-*)
    arch_x86="yes"
  ;;

  x86_64-*-*)
    arch_x86="yes"
    arch_x86_64="yes"
  ;;

  *)
  ;;
esac

if test "$build_darwin" = "yes"; then
  if test "$arch_x86" = "yes"; then
    DARWIN_ARCH="intel"
  elif test "$arch_ppc" = "yes"; then
    DARWIN_ARCH="ppc"
  fi
  AC_SUBST(DARWIN_ARCH)
fi

# Used for universalchardet.
AC_AGI_MDCPUCFG($target_or_host)

# For conditional file building and options in Makefile(s).
AM_CONDITIONAL([BUILD_DARWIN], [test "$build_darwin" = "yes"])
AM_CONDITIONAL([BUILD_DEFAULT], [test "$build_default" = "yes"])

# FontConfig is used on Darwin for the fontlister, freetype for !Windows case.
AM_CONDITIONAL([FONTLISTER_FONTCONFIG], [test "$build_darwin" != "yes"])
AM_CONDITIONAL([FONTLISTER_FREETYPE], [test "$build_darwin" = "yes"])

# Handle endianess.
AC_C_BIGENDIAN(
    AC_DEFINE([HAVE_BIG_ENDIAN], [1], [Big Endian]),
    AC_DEFINE([HAVE_LITTLE_ENDIAN], [1], [Little Endian]),
    AC_DEFINE([HAVE_DYNAMIC_ENDIAN], [1], [Unknown endian]),
    AC_DEFINE([HAVE_UNIVERSAL_ENDIAN], [1], [Universal Endian (MAC Universal PPC/Intel Binaries, uses HAVE_DYNAMIC_ENDIAN)])
)


########################
# Configurable variables
########################

# These cannot be set before AC_INIT()
AEGISUB_VERSION_MAJOR=aegisub_version_major
AEGISUB_VERSION_MINOR=aegisub_version_minor
AEGISUB_VERSION=aegisub_version
# Used for gettext.
AEGISUB_VERSION_DATA=aegisub_version_data

# Suffix used for data paths.
AC_DEFINE_UNQUOTED(AEGISUB_VERSION_DATA, ["$AEGISUB_VERSION_DATA"], [Data path suffix.])
AC_SUBST(AEGISUB_VERSION_DATA)

# Shared data and Documents location.
aegisubdatadir="$datadir/$PACKAGE/aegisub_version_data"
AC_SUBST(aegisubdatadir)
aegisubdocdir="$datadir/doc/$PACKAGE/aegisub_version_data"
AC_SUBST(aegisubdocdir)

# Name of aegisub binary.
AEGISUB_COMMAND="aegisub-$AEGISUB_VERSION_MAJOR.$AEGISUB_VERSION_MINOR"
AC_SUBST(AEGISUB_COMMAND)

# Handle location of desktop files: http://freedesktop.org/wiki/Specifications/desktop-entry-spec
AC_ARG_WITH(desktop-dir, [  --with-desktop-dir=PATH desktop file locations (default: PREFIX/share)])
if ! test -z "$with_desktop_dir" ; then
  DESKTOP_DATADIR=$with_desktop_dir
else
  DESKTOP_DATADIR="$datadir"
fi
AM_CONDITIONAL(DESKTOP_DATADIR, test "$with_desktop_dir" != "no")
AC_SUBST(DESKTOP_DATADIR)


# Install prefix
# If a user doesn't supply --prefix then it is set to NONE so we
# set it to $ac_default_prefix if it hasn't been supplied.
if test "$prefix" = "NONE"; then
	prefix="$ac_default_prefix"
fi

# Install prefix used by wxStandardPaths::SetInstallPrefix.
AC_DEFINE_UNQUOTED([INSTALL_PREFIX], ["$prefix"], [Default install prefix, or --prefix.])

# Build credit
AC_ARG_WITH(build-credit, [  --with-build-credit=NAME  Build credit shown in the program title.], [use_build_credit="yes"])
AC_MSG_CHECKING([whether BUILD_CREDIT has been set])
if test "$use_build_credit" = "yes"; then
  if test "$with_build_credit" = "yes" || test -z "$with_build_credit"; then
    AC_MSG_FAILURE([You must set a value eg --with-build-credit=<username>])
  else
    AC_MSG_RESULT([yes ($with_build_credit)])
    AC_DEFINE_UNQUOTED([BUILD_CREDIT], ["$with_build_credit"], [Build credit supplied in application title using --with-build-credit=])
  fi
else
  AC_MSG_RESULT([no])
fi


####################
# Check for programs
####################
CHECK_GNU_MAKE
AC_PROG_CC
AC_PROG_CXX
AC_LANG(C++)
AM_PROG_CC_C_O
define([AC_LIBTOOL_LANG_F77_CONFIG], [:])
AC_PROG_LIBTOOL
AC_PROG_INSTALL
PKG_PROG_PKG_CONFIG([pkgconfig_required_version])


#################
# Developers only
#################
AM_MAINTAINER_MODE

# XXX: This needs to be fixed to handle mixed revisions properly
#      There is probably a better way to handle it as well...
AC_MSG_CHECKING([for svn version])
if test -d "$srcdir/.svn"; then
  SVN_REVISION=`svnversion $srcdir | sed "s/\(^@<:@0-9@:>@*\).*/\1/"`
  `echo $SVN_REVISION > $srcdir/svn_revision`
  AC_MSG_RESULT([$SVN_REVISION from "svnversion $srcdir"])
elif test -f "$srcdir/svn_revision"; then
  SVN_REVISION=`cat $srcdir/svn_revision`
  AC_MSG_RESULT([$SVN_REVISION from "$srcdir/svn_revision"])
else
  AC_MSG_RESULT([not found])
  AC_MSG_FAILURE([unable to get SVN Revision from $srcdir/svn_version or 'svnversion $srcdir'])
fi

# This is required in order for the config file to work correctly.
AC_DEFINE_UNQUOTED([BUILD_SVN_REVISION], [$SVN_REVISION], [SVN Revision number, used for config.dat and verison.cpp])

# Used on OSX and Unix for packing building.
PACKAGE_STRING="${PACKAGE_STRING}-r$SVN_REVISION"
PACKAGE_VERSION="${PACKAGE_VERSION}-r$SVN_REVISION"
VERSION="${VERSION}-r$SVN_REVISION"

# Used in version.cpp
AC_MSG_CHECKING([for build date])
BUILD_DATE=`date "+%Y-%m-%d %H:%M %Z"`
AC_MSG_RESULT($BUILD_DATE)

AC_SUBST(SVN_REVISION)
AC_SUBST(BUILD_DATE)


###################################################
# 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_ARG_ENABLE(compiler-flags, [  --disable-compiler-flags
                          Disable *all* additional compiler flags. (default=no)])

if test "$enable_compiler_flags" != "no"; then
  AC_C_FLAG([-Wall])
  AC_C_FLAG([-Wextra],[AC_C_FLAG([-W])])
  AC_C_FLAG([-Wno-unused-parameter])
  AC_C_FLAG([-std=gnu99])
  AC_C_FLAG([-pipe])
  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([-fpermissive])
  AC_CXX_FLAG([-fno-strict-aliasing])
  AC_CXX_FLAG([-pipe])

  # -O* messes with debugging.
  if test "$enable_debug" != "yes"; then
    AC_C_FLAG([-O2])
    AC_CXX_FLAG([-O2])
  fi
fi

######################################
# 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_CHECK_FUNC([strlcpy], [
	AC_DEFINE([HAVE_STRLCPY], [1], [strlcpy() exists in the c library.])
], [])

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)



##############################
# Program Support and Features
##############################
#################
## Wide Character
#################
AC_CHECK_HEADER([wchar.h],,[AC_MSG_FAILURE([aegisub requires wide character support])])


#########
## OpenGL
#########
AX_CHECK_GL
if test ! "$GL_LIBS"; then
	AC_MSG_FAILURE([aegisub requires GL support.])
fi
AC_SUBST(GL_CFLAGS)
AC_SUBST(GL_LIBS)


#XXX: This needs to be fixed for OSX.
AC_AGI_COMPILE([OpenGL], [opengl], [$GL_CFLAGS], [$GL_LIBS],[
int main(void) {
  return 0;
}])

if test "$agi_cv_with_opengl" = "no"; then
	AC_MSG_FAILURE([Please install a working OpenGL library.])
fi

AC_AGI_COMPILE([OpenGLU], [openglu], [$GL_CFLAGS], [$GL_LIBS -lGLU],[
#include <GL/glu.h>
int main(void) {
  return 0;
}])

if test "$agi_cv_with_openglu" = "no" && test "$build_darwin" != "yes"; then
	AC_MSG_FAILURE([Please install a working OpenGL GLU library.])
fi


###########
## Freetype
###########
PKG_CHECK_MODULES(FREETYPE, freetype2 >= freetype_required_version,
  AC_DEFINE(WITH_FREETYPE2, 1, [Enable FreeType 2 support.]),
  [AC_MSG_FAILURE([aegisub requires >= FreeType2 freetype_required_version])])

AC_AGI_COMPILE([Freetype], [freetype], [$FREETYPE_CFLAGS], [$FREETYPE_LIBS],[
#include <ft2build.h>
#include FT_FREETYPE_H
int main(void) {
  FT_Library ft;
  if (FT_Init_FreeType(&ft)) { return 1; }
  return 0;
}])

if test "$agi_cv_with_freetype" = "no"; then
    AC_MSG_FAILURE([Please install a working Freetype library.])
fi


#############
## Fontconfig
#############
PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= fontconfig_required_version)

AC_AGI_COMPILE([FontConfig], [fontconfig], [$FONTCONFIG_CFLAGS], [$FONTCONFIG_LIBS],[
#include <fontconfig/fontconfig.h>
int main(void) {
  int fc = FcInit();
  FcConfig* config;
  config = FcConfigGetCurrent();
  if ((!config) || (!fc)) { return 1;}
  return 0;
}])

if test "$agi_cv_with_fontconfig" = "no"; then
    AC_MSG_FAILURE([Please install a working Fontconfig library.])
fi

AC_DEFINE(WITH_FONTCONFIG, 1, [Enable FontConfig support.])
AC_SUBST(FONTCONFIG_CFLAGS)
AC_SUBST(FONTCONFIG_LIBS)



########
## iconv
########
AC_ARG_VAR([ICONV_CFLAGS], [CFLAGS to use for iconv (default: CPPFLAGS)])
AC_ARG_VAR([ICONV_LDFLAGS], [LDFLAGS to use for iconv (default: LDFLAGS -liconv)])

if test -z "$ICONV_LDFLAGS"; then
  if test "$build_linux" = "yes"; then
    ICONV_LDFLAGS="$LDFLAGS"
  else
    ICONV_LDFLAGS="$LDFLAGS -liconv";
  fi
fi

if test -z "$ICONV_CFLAGS"; then
  ICONV_CFLAGS="$CPPFLAGS";
fi

  AC_AGI_COMPILE([iconv], [iconv], [$ICONV_CFLAGS], [$ICONV_LDFLAGS],[
#include <iconv.h>
int main(void) {
  iconv_t ic;
  ic = iconv_open ("UTF-8", "UTF-8");
  if (!ic) return 1;
  return 0;
} ])

AC_SUBST(ICONV_LDFLAGS)
AC_SUBST(ICONV_CFLAGS)



###############
# Audio Players
###############
#######
## ALSA
#######
AC_ARG_WITH(alsa, [  --without-alsa          build without ALSA audio provider. (default: auto)], alsa_disabled="(disabled)")

AC_ARG_VAR([ALSA_CFLAGS], [CFLAGS to use for ALSA (default: CPPFLAGS)])
AC_ARG_VAR([ALSA_LDFLAGS], [LDFLAGS to use for ALSA (default: -lasound)])

if test -z "$ALSA_LDFLAGS"; then
  ALSA_LDFLAGS="-lasound";
fi

if test -z "$ALSA_CFLAGS"; then
  ALSA_CFLAGS="$CPPFLAGS";
fi

if test "$with_alsa" != "no"; then
  aegisub_save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$ALSA_LDFLAGS"
  AC_CHECK_LIB([asound], [snd_pcm_open], [ALSA_LDFLAGS="-lasound"; with_alsa="yes"], [with_alsa="no"])
  LDFLAGS="$aegisub_save_LDFLAGS"
fi

if test "$with_alsa" != "no"; then
  AC_DEFINE(WITH_ALSA, 1, [Enable ALSA Support])
  found_audio_player="yes"
fi

AM_CONDITIONAL([HAVE_ALSA], [test "$with_alsa" != "no"])
AC_SUBST(ALSA_LDFLAGS)


############
## PortAudio
############

AC_ARG_WITH(portaudio,[  --without-portaudio    build without PortAudio v19 audio provider.
                          (default: auto)], pulseaudio_disabled="(disabled)")
if test "$with_portaudio" != "no"; then
  PKG_CHECK_MODULES(PORTAUDIO, portaudio-2.0 >= portaudio_required_version, [with_portaudio="yes"], [with_portaudio="no"])
fi

if test "$with_portaudio" != "no"; then
  AC_AGI_COMPILE([PortAudio], [portaudio], [$PORTAUDIO_CFLAGS], [$PORTAUDIO_LIBS],[
#include <portaudio.h>
int main(void) {
  PaError err = Pa_Initialize();
  if (err != paNoError) return 1;
  return 0;
} ])
fi

if test "$agi_cv_with_portaudio" = "no" && test "$with_portaudio" = "yes"; then
  AC_MSG_WARN([PortAudio detected, but it doesn't work...])
  with_portaudio="no"
fi

if test "$agi_cv_with_portaudio" = "yes" && test "$with_portaudio" = "yes"; then
  AC_DEFINE(WITH_PORTAUDIO, 1, [Enable PortAudio v19 support])
  found_audio_player="yes"
fi

AM_CONDITIONAL([HAVE_PORTAUDIO], [test "$with_portaudio" != "no"])


#############
## PulseAudio
#############

AC_ARG_WITH(pulseaudio,[  --without-pulseaudio    build without PulseAudio audio provider.
                          (default: auto)], pulseaudio_disabled="(disabled)")
if test "$with_pulseaudio" != "no"; then
  PKG_CHECK_MODULES(LIBPULSE, libpulse >= pulseaudio_required_version, [with_pulseaudio="yes"], [with_pulseaudio="no"])
fi

if test "$with_pulseaudio" != "no"; then
  AC_AGI_COMPILE([PuleseAudio], [pulseaudio], [$LIBPULSE_CFLAGS], [$LIBPULSE_LIBS],[
#include <pulse/pulseaudio.h>
int main(void) {
pa_threaded_mainloop *mainloop = pa_threaded_mainloop_new();
if (!mainloop) return 1;
return 0;
} ])
fi

if test "$agi_cv_with_pulseaudio" = "no" && test "$with_pulseaudio" = "yes"; then
  AC_MSG_WARN([PulseAudio detected, but it doesn't work...])
  with_pulseaudio="no"
fi

if test "$agi_cv_with_pulseaudio" = "yes" && test "$with_pulseaudio" = "yes"; then
  AC_DEFINE(WITH_PULSEAUDIO, 1, [Enable PulseAudio support])
  found_audio_player="yes"
fi

AM_CONDITIONAL([HAVE_PULSEAUDIO], [test "$with_pulseaudio" != "no"])


#########
## OpenAL
#########
AC_ARG_WITH(openal,[  --without-openal        build without OpenAL audio provider.
                          (default: auto)], openal_disabled="(disabled)")
if test "$with_openal" != "no"; then
  PKG_CHECK_MODULES(OPENAL, openal >= 0.0.8, [with_openal=yes], [with_openal=no])
fi

if test "$with_openal" != "no"; then
  AC_AGI_COMPILE([OpenAL], [openal], [$OPENAL_CFLAGS], [$OPENAL_LIBS],[
#if defined(__APPLE__)
#include <OpenAL/AL.h>
#include <OpenAL/ALC.h>
#else
#include <AL/al.h>
#include <AL/alc.h>
#endif
int main(void) {
  ALCdevice *device = alcOpenDevice(0);
  if (!device) return 1;
  ALCcontext *context = alcCreateContext(device, 0);
  if (!context) return 1;
  return 0;
} ])
fi

if test "$agi_cv_with_openal" = "no" && test "$with_openal" = "yes"; then
  AC_MSG_WARN([OpenAL detected, but it doesn't work...])
  with_openal="no"
fi

if test "$agi_cv_with_openal" = "yes" && test "$with_openal" = "yes"; then
  found_audio_player="yes"
  AC_DEFINE(WITH_OPENAL, 1, [Enable OpenAL support])
fi

AM_CONDITIONAL([HAVE_OPENAL], [test "$with_openal" != "no"])


#########################
# Video / Audio Providers
#########################

AC_ARG_WITH(ffmpeg, [  --without-ffmpeg        build without FFMPEG support.
                          Disables FFMPEG and FFmpegSource A/V providers.
                          (default: auto)], [ffmpeg_disabled="(disabled)"; with_ffmpeg="no"])

if test "$with_ffmpeg" != "no"; then
  PKG_CHECK_MODULES(LIBAVCODEC,  libavcodec >= libavcodec_required_version, [], [with_ffmpeg="no"])
  PKG_CHECK_MODULES(LIBAVFORMAT, libavformat >= libavformat_required_version, [], [with_ffmpeg="no"])
  PKG_CHECK_MODULES(LIBSWSCALE,  libswscale >=  libswscale_required_version, [], [with_ffmpeg="no"])
  PKG_CHECK_MODULES(LIBAVUTIL,  libavutil >= libavutil_required_version, [], [with_ffmpeg="no"])
fi

if test "$with_ffmpeg" != "no" && test "$enable_old_ffmpeg" != "yes"; then
  AC_AGI_COMPILE([FFMPEG], [ffmpeg], [$LIBSWSCALE_CFLAGS $LIBAVCODEC_CFLAGS $LIBAVFORMAT_CFLAGS $LIBAVUTIL_CFLAGS], [$LIBSWSCALE_LIBS $LIBAVCODEC_LIBS $LIBAVFORMAT_LIBS $LIBAVUTIL_LIBS],[
extern "C" {
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libswscale/swscale.h>
}

int main (void) {
  AVFormatContext *fc = NULL;
  AVCodec *c = NULL;
  SwsContext *swsc = NULL;

  av_register_all();
  fc = av_alloc_format_context();
  if (fc == NULL) {
    printf("avformat failure\n");
    return 1;
  }
  av_free(fc);
                               
  avcodec_init();
  avcodec_register_all();
  c = avcodec_find_decoder(CODEC_ID_PCM_S16LE);
  if (c == NULL) {
    printf("avcodec failure\n");
    return 1;
  }

  swsc = sws_getContext(704, 480, PIX_FMT_RGB32, 704, 480, PIX_FMT_YUV420P, SWS_BILINEAR, NULL, NULL, NULL);
  if (swsc == NULL) {
    printf("swscale failure\n");
    return 1;
  }
  sws_freeContext(swsc);

  return 0;
} ])
fi

if test "$agi_cv_with_ffmpeg" = "no" && test "$with_ffmpeg" != "no"; then
  AC_MSG_WARN([FFMPEG detected, but it doesn't work...])
  with_ffmpeg="no"
fi

if test "$agi_cv_with_ffmpeg" = "yes" && test "$with_ffmpeg" != "no"; then
  with_ffmpeg="yes"
fi

if test "$agi_cv_with_ffmpeg" = "no" || test "$with_ffmpeg" = "no"; then
  ffmpegsource_provider_disabled="(disabled, requires FFMPEG)"
  ffmpeg_provider_disabled="(disabled, requires FFMPEG)"
  with_ffmpeg="no"
fi

AM_CONDITIONAL([HAVE_FFMPEG], [test "$agi_cv_with_ffmpeg" = "yes"])
AC_SUBST(LIBAVFORMAT_LIBS)
AC_SUBST(LIBAVFORMAT_CFLAGS)
AC_SUBST(LIBAVCODEC_LIBS)
AC_SUBST(LIBAVCODEC_CFLAGS)
AC_SUBST(LIBSWSCALE_LIBS)
AC_SUBST(LIBSWSCALE_CFLAGS)
AC_SUBST(LIBAVUTIL_LIBS)
AC_SUBST(LIBAVUTIL_CFLAGS)

AC_ARG_WITH(provider-ffmpegsource, [  --without-provider-ffmpegsource
                          build without FFmpegSource A/V provider.
                          (default: auto)], ffmpegsource_provider_disabled="(disabled)", with_provider_ffmpegsource="yes")

if test "$agi_cv_with_ffmpeg" = "yes" && test "$with_provider_ffmpegsource" = "yes"; then
  PKG_CHECK_MODULES(LIBPOSTPROC,  libpostproc >= libpostproc_required_version, [], [with_libpostproc="no"])

  AC_AGI_COMPILE([postproc], [postproc], [$LIBPOSTPROC_CFLAGS], [$LIBPOSTPROC_LIBS],[
extern "C" {
#include <libpostproc/postprocess.h>
}

int main (void) {
  pp_context_t *PPContext = pp_get_context(704,480, 0);

  if (!PPContext) return 1;
  pp_free_context(PPContext);
  return 0;
} ])

  if test "$agi_cv_with_postproc" = "yes"; then
    found_video_provider="yes"
    AC_DEFINE(WITH_FFMPEGSOURCE, 1, [Enable FFmpegSource2 Video Provider])
  else
    with_provider_ffmpegsource="no"
  fi
else
  with_provider_ffmpegsource="no"
fi

AM_CONDITIONAL([HAVE_PROVIDER_FFMPEGSOURCE], [test "$with_provider_ffmpegsource" = "yes"])
AC_SUBST(LIBPOSTPROC_LIBS)
AC_SUBST(LIBPOSTPROC_CFLAGS)


###################
# Subtitle Provider
###################

AC_ARG_ENABLE(libass, [  --disable-libass        disable libass support (default=enabled)],libass_disabled="(disabled)")

if test "$enable_libass" != "no"; then
  if test "$agi_cv_with_iconv" = "yes"; then
    LIBASS_LIBS="-L../libass -lass_aegisub"
    LIBASS_CFLAGS="-I../libass"
    with_libass="yes"
  else
    AC_MSG_WARN([libiconv is required for libass support.])
    with_libass="no"
  fi
fi

if test "$with_libass" = "yes" || test "$enable_libass" != "no"; then
  AC_DEFINE(WITH_LIBASS, 1, [Enable libass Subtitle Provider])
else
  with_libass="no"
fi

AM_CONDITIONAL([WITH_LIBASS], [test "$with_libass" = "yes"])
AC_SUBST(LIBASS_LIBS)
AC_SUBST(LIBASS_CFLAGS)



AC_ARG_ENABLE(csri, [  --disable-csri          disable CSRI (ASA) support (default=enabled)], csri_disabled="(disabled)")

if test "$enable_csri" != "no"; then
  PKG_CHECK_MODULES(CSRI, csri >= 0.1.0, with_csri="yes", with_csri="no")
  PKG_CHECK_MODULES(ASA, asa >= 0.3.2, with_asa="yes", with_asa="no")
  if test "$with_csri" = "yes" && test "$with_asa" = "yes"; then
    AC_DEFINE(WITH_CSRI, 1, [Enable CSRI (ASA) Subtitle Provider])
  fi
else
  with_csri="no"
fi

AM_CONDITIONAL([WITH_CSRI], [test "$with_csri" = "yes"])


###########
## Hunspell
###########
AC_ARG_WITH(hunspell, [  --without-hunspell      build without hunspell support (default: auto)], hunspell_disabled="(disabled)")

if test "$with_hunspell" != "no"; then
  PKG_CHECK_MODULES(HUNSPELL, hunspell >= 1.2.0, [with_hunspell="yes"], [with_hunspell="no"])
  AC_AGI_COMPILE([Hunspell], [hunspell], [$HUNSPELL_CFLAGS], [$HUNSPELL_LIBS],[
#include <hunspell.hxx>
int main(void) {
  Hunspell *hunspell;
  hunspell = new Hunspell(".", ".");
  if (!hunspell) return 1;
  return 0;
}  ])
fi

if test "$agi_cv_with_hunspell" = "no" && test "$with_hunspell" = "yes"; then
  AC_MSG_WARN([Hunspell detected, but it doesn't work...])
  with_hunspell="no"
fi

if test "$agi_cv_with_hunspell" = "yes" && test "$with_hunspell" = "yes"; then
  AC_DEFINE(WITH_HUNSPELL, 1, [Enable Hunspell support.])
fi

AM_CONDITIONAL([HAVE_HUNSPELL], [test "$with_hunspell" != "no"])



######################
## universalchardetect
######################
AC_ARG_ENABLE(univchardet, [  --disable-univchardet   disble universalchardet support.], univchardet_disabled="(disabled)")
if test "$enable_univchardet" != "no"; then
  with_univchardet="yes"
  AC_DEFINE(WITH_UNIVCHARDET, 1, [Enable universalchardet support])
else
  with_univchardet="no"
fi
AM_CONDITIONAL([HAVE_UNIVCHARDET], [test "$with_univchardet" != "no"])




############
# Automation
############

AC_ARG_WITH(lua,
[  --without-lua           build without lua 5.1 (auto4)], [lua51_disabled="(disabled)"])

AC_ARG_VAR([LUA_CFLAGS], [CFLAGS to use for LUA 5.1 (default: CPPFLAGS)])
AC_ARG_VAR([LUA_LDFLAGS], [LDFLAGS to use for LUA 5.1 (default: -llua)])

if test -z "$LUA_LDFLAGS"; then
  LUA_LDFLAGS="-llua";
fi

aegisub_save_LIBS="$LIBS"
LIBS="$LUA_LDFLAGS"
if test "$with_lua" != no; then
  AC_AGI_COMPILE([Lua 5.1 (auto4)], [lua], [$LUA_CFLAGS], [],[
extern "C" {
#include <lua.h>
#include <lauxlib.h>
}

int main () {
  lua_State *L = luaL_newstate();
  lua_pushstring(L, "test");
  int res = lua_objlen(L, -1) == 4;
  lua_close(L);
  return !res;
}])
fi
LIBS="$aegisub_save_LIBS"

if test "$agi_cv_with_lua" = "yes"; then
  with_auto4="yes"
  with_automation="yes"
  AC_DEFINE(WITH_AUTO4_LUA, 1, [Enable Automation (auto4), requires lua])
else
  with_auto4="no"
fi

AM_CONDITIONAL([HAVE_AUTO4_LUA], [test "$with_auto4" != "no"])
AC_SUBST(LUA_CFLAGS)
AC_SUBST(LUA_LDFLAGS)

# Automation setup
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_automation" = "yes"])



################
# Widget support
################
WX_CONFIG_OPTIONS
WX_STANDARD_OPTIONS([debug])
WX_DEBUG=$DEBUG
WX_UNICODE=$UNICODE
WX_CONFIG_CHECK([wx_required_version],,,[std,gl,stc],[$WXCONFIG_FLAGS])

if test "$have_wxconfig" = "no"; then
  AC_MSG_FAILURE([wxWidgets detection failed, please set --with-wx* or add the libraries to your LDFLAGS, CXX/CFLAGS.])
fi

AC_ARG_ENABLE(check-wx-opengl, [  --disable-check-wx-opengl
                          Force wxwidgets OpenGL support. ])

if test "$enable_check_wx_opengl" != "no"; then
  AC_AGI_LINK([wxWidgets OpenGL support], [wxopengl], [wx/glcanvas.h], [$GL_CFLAGS $WX_CFLAGS], [$GL_LIBS $WX_LIBS],[
#include <wx/glcanvas.h>
int main(void) {
  wxGLCanvas *canvas;
  wxGLContext *context;
  return 0;
} ])
fi

if test "$with_agi_cv_wxopengl" = "no" || test "$enable_check_wx_opengl" = "yes"; then
  AC_MSG_FAILURE([wxWidgets OpenGL support missing])
fi


AC_ARG_ENABLE(check-wx-stc, [  --disable-check-wx-stc  Force wxwidgets StyledTextCtrl support.])

if test "$enable_check_wx_stc" != "no"; then
  AC_AGI_LINK([wxWidgets StyledTextCtrl support], [wxstc], [wx/stc/stc.h], [$WX_CFLAGS], [$WX_LIBS],[
#include <wx/stc/stc.h>
int main(void) {
  wxStyledTextCtrl *canvas;
  return 0;
} ])
fi

if test "$with_agi_cv_wxstc" = "no" || test "$enable_check_wx_stc:" = "yes"; then
  AC_MSG_FAILURE([wxWidgets StyledTextCtrl support missing])
fi


######################################################
# Debugging support
# This is added last so it doesn't slow down configure
# If you want it earlier add it to your CXXFLAGS.
######################################################

AC_ARG_VAR([DEBUG_FLAGS], [Debug flag to use with --enable-debug (default: -g)])

AC_MSG_CHECKING([whether to turn on debugging])
AC_ARG_ENABLE(debug, [  --enable-debug          enable debugging (default=no)])
if test "$enable_debug" = "yes"; then
  if test -z "$DEBUG_FLAGS"; then
    DEBUG_FLAGS="-g";
  fi

  AC_MSG_RESULT([yes ($DEBUG_FLAGS)])
  CPPFLAGS="$DEBUG_FLAGS $CPPFLAGS"
  msg_debug="($DEBUG_FLAGS)"

  # This turns on some internal (to aegisub) debugging features.
  # A debug version of wxWidgets is required.
  if $WX_CONFIG_PATH --debug; then
    AC_CXX_FLAG([-D_DEBUG])
  fi
else
  enable_debug="no"
  AC_MSG_RESULT([no])
fi
AC_SUBST(DEBUG_FLAGS)

if test "$enable_debug" = "yes"; then
  PACKAGE_DEBUG="-debug"
fi
AC_SUBST(PACKAGE_DEBUG)


###########
# Profiling
###########

AC_ARG_VAR([PROFILE_FLAGS], [Profile flag(s) to use with --enable-profile (default: -pg)])

AC_MSG_CHECKING([whether to turn on profiling])
AC_ARG_ENABLE(profile, [  --enable-profile        enable profiling (default=no)])
if test "$enable_profile" = "yes"; then
  if test -z "$PROFILE_FLAGS"; then
    PROFILE_FLAGS="-pg";
  fi
  AC_MSG_RESULT([yes ($PROFILE_FLAGS)])
  CPPFLAGS="$PROFILE_FLAGS $CPPFLAGS"
else
  enable_profile="no"
  AC_MSG_RESULT([no])
fi


######
# gcov
######

AC_ARG_VAR([GCOV_FLAGS], [gcov flag(s) to use with --enable-gcov (default: -ftest-coverage -fprofile-arcs)])

AC_MSG_CHECKING([whether to turn on gcov])
AC_ARG_ENABLE(gcov, [  --enable-gcov           enable gcov (default=no)])

if test "$enable_gcov" = "yes"; then
  if test -z "$GCOV_FLAGS"; then
    GCOV_FLAGS="-fprofile-arcs -ftest-coverage";
  fi
  AC_MSG_RESULT([yes ($GCOV_FLAGS)])
  CFLAGS="$CFLAGS $GCOV_FLAGS"
  CPPFLAGS="$CPPFLAGS $GCOV_FLAGS"
else
  enable_gcov="no"
  AC_MSG_RESULT([no])
fi



################
# Electric Fence
################

AC_ARG_VAR([EFENCE_LDFLAGS], [Electric Fence ldflag(s) to use with --enable-profile (default: -lefence)])

AC_MSG_CHECKING([whether to turn on Electric Fence])
AC_ARG_ENABLE(efence, [  --enable-efence         enable Electric Fence (default=no)])
if test "$enable_efence" = "yes"; then
  if test -z "$EFENCE_LDFLAGS"; then
    EFENCE_LDFLAGS="-lefence";
  fi
  AC_MSG_RESULT([yes ($EFENCE_LDFLAGS)])
else
  enable_efence="no"
  AC_MSG_RESULT([no])
fi
AC_SUBST(EFENCE_LDFLAGS)

##########
# ccmalloc
##########

AC_ARG_VAR([CCMALLOC_LIBS], [ccmalloc libs(s) to use with --enable-ccmalloc (default: $prefix/lib/ccmalloc-c++.o)])
AC_ARG_VAR([CCMALLOC_LDFLAGS], [ccmalloc ldflag(s) to use with --enable-ccmalloc (default: -lccmalloc)])

AC_MSG_CHECKING([whether to turn on ccmalloc])
AC_ARG_ENABLE(ccmalloc, [  --enable-ccmalloc       enable ccmalloc (default=no)])
if test "$enable_ccmalloc" = "yes"; then
  if test -z "$CCMALLOC_LIBS"; then
    CCMALLOC_LIBS="$prefix/lib/ccmalloc-c++.o";
  fi

  if test -z "$CCMALLOC_LDFLAGS"; then
    CCMALLOC_LDFLAGS="-lccmalloc";
  fi
  AC_MSG_RESULT([yes ($CCMALLOC_LIBS $CCMALLOC_LDFLAGS)])
else
  enable_ccmalloc="no"
  AC_MSG_RESULT([no])
fi
AC_SUBST(CCMALLOC_LDFLAGS)
AC_SUBST(CCMALLOC_LIBS)

if test "$enable_efence" = "yes" && test "$enable_ccmalloc" = "yes"; then
  AC_MSG_FAILURE([Please enable Electric Fence _or_ ccmalloc otherwise strange things will happen.])
fi  


##############################
# Internationalisation support
##############################
AC_PROG_INTLTOOL
AM_GLIB_GNU_GETTEXT

if test "$build_darwin" = "yes"; then
  GETTEXT_PACKAGE="aegisub"
else
  GETTEXT_PACKAGE="aegisub${AEGISUB_VERSION_MAJOR}${AEGISUB_VERSION_MINOR}"
fi

AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE",
                   [The basename for our gettext translation domains.])


####################################################################
# Default settings for Providers/Players
# * This is done at the end to preserve sanity rather than littering
#   it above.
####################################################################

AC_ARG_WITH(provider-video, [  --with-provider-video=(ffmpegsource|ffmpeg)
                          Default Video Provider. (default: ffmpegsource)])
AC_ARG_WITH(provider-audio, [  --with-provider-audio=(ffmpegsource|ffmpeg)
                          Default Audio Provider. (default: ffmpegsource)])
AC_ARG_WITH(player-audio, [  --with-player-audio=(alsa|openal|portaudio|pulseaudio)
                          Default Audio Player (default: Linux/ALSA,
                          Darwin/OpenAL, */PortAudio.])

# Default Video Provider.
if ! test -z "$with_provider_video"; then
    default_provider_video="$with_provider_video"
else
  if test "$with_provider_ffmpegsource" = "yes"; then
    default_provider_video="ffmpegsource"
  elif test "$with_provider_ffmpeg" = "yes"; then
    default_provider_video="ffmpeg"
  fi
fi
AC_DEFINE_UNQUOTED([DEFAULT_PROVIDER_VIDEO], ["$default_provider_video"], [Default Video Provider.])


# Default Audio Provider.
if ! test -z "$with_provider_audio"; then
    default_provider_audio="$with_provider_audio"
else
  if test "$with_provider_ffmpegsource" = "yes"; then
    default_provider_audio="ffmpegsource"
  elif test "$with_provider_ffmpeg" = "yes"; then
    default_provider_audio="ffmpeg"
  fi
fi
AC_DEFINE_UNQUOTED([DEFAULT_PROVIDER_AUDIO], ["$default_provider_audio"], [Default Video Provider.])


# Default Subtitle Provider.
if ! test -z "$with_provider_subtitle"; then
    default_provider_subtitle="$with_provider_subtitle"
else
  if test "$with_libass" = "yes"; then
    default_provider_subtitle="libass"
  elif test "$with_csri" = "yes"; then
    default_provider_subtitle="csri"
  fi
fi
AC_DEFINE_UNQUOTED([DEFAULT_PROVIDER_SUBTITLE], ["$default_provider_subtitle"], [Default Subtitle Provider.])


# Default audio player.
if ! test -z "$with_player_audio"; then
    default_player_audio="$with_player_audio"
else
  if test "$build_linux" = "yes" && test "$with_alsa" = "yes"; then
    default_player_audio="alsa"
  elif test "$build_darwin" = "yes" && test "$with_openal" = "yes"; then
    default_player_audio="openal"
  elif test "$with_portaudio" = "yes"; then
    default_player_audio="portaudio"
  elif test "$with_pulseaudio" = "yes"; then
    default_player_audio="pulseaudio"
  fi
fi
AC_DEFINE_UNQUOTED([DEFAULT_PLAYER_AUDIO], ["$default_player_audio"], [Default audio player.])



###############
# Misc settings 
###############
AM_CONDITIONAL([FOUND_AUDIO_PLAYER], [test "$found_audio_player" = "yes"])
AM_CONDITIONAL([FOUND_VIDEO_PROVIDER], [test "$found_video_provider" = "yes"])


# Makefiles
AC_CONFIG_FILES([
Makefile
src/Makefile
src/bitmaps/Makefile
src/libresrc/Makefile
src/libosxutil/Makefile
universalchardet/Makefile
libffms/Makefile
libass/Makefile
automation/Makefile
po/Makefile.in
desktop/Makefile
tools/Makefile
])

# Files that need substitution.
AC_CONFIG_FILES([
desktop/aegisub.desktop
tools/osx-bundle.sed
])

AC_OUTPUT

if test -z "$found_audio_player"; 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([
Configure settings
  Install prefix:        $prefix
  SVN Revision:          $SVN_REVISION
  Debug                  $enable_debug $msg_debug
  CXXFLAGS               $CXXFLAGS
  CPPFLAGS               $CPPFLAGS
  LDFLAGS                $LDFLAGS

Default Settings
  Video Provider:        $default_provider_video
  Audio Provider:        $default_provider_audio
  Subtitle Provider:     $default_provider_subtitle
  Audio Player:          $default_player_audio

Scripting Engines
  auto4 Lua:             $with_auto4 $lua51_disabled

Audio Players
  ALSA:                  $with_alsa $alsa_disabled
  OpenAL:                $with_openal $openal_disabled
  PortAudio:             $with_portaudio $portaudio_disabled
  PulseAudio:            $with_pulseaudio $pulseaudio_disabled

A/V Support
  FFMPEG:                $with_ffmpeg $ffmpeg_disabled
                         (required for video providers)

A/V Providers
  FFmpegSource:          $with_provider_ffmpegsource $ffmpegsource_provider_disabled

Subtitle Providers:
  CSRI (ASA):            $with_csri $csri_disabled $csri_default
  libASS                 $with_libass $libass_disabled $libass_default
                         (both require iconv and fontconfig)

Misc Packages
  Hunspell:              $with_hunspell $with_hunspell_version $hunspell_disabled
  universalchardet:      $with_univchardet $univchardet_disabled
]);