AC_INIT(rsvg.h)

dnl ===========================================================================

GDK_PIXBUF_REQUIRED=1.3.7
GLIB_REQUIRED=2.0.0
LIBART_REQUIRED=2.3.10
LIBXML_REQUIRED=2.4.7
PANGOFT2_REQUIRED=1.0.0
POPT_REQUIRED=1.5

AC_SUBST(GDK_PIXBUF_REQUIRED)
AC_SUBST(GLIB_REQUIRED)
AC_SUBST(LIBART_REQUIRED)
AC_SUBST(LIBXML_REQUIRED)
AC_SUBST(PANGOFT2_REQUIRED)
AC_SUBST(POPT_REQUIRED)

dnl ===========================================================================

LIBRSVG_MAJOR_VERSION=2
LIBRSVG_MINOR_VERSION=2
LIBRSVG_MICRO_VERSION=3
AC_SUBST(LIBRSVG_MAJOR_VERSION)
AC_SUBST(LIBRSVG_MINOR_VERSION)
AC_SUBST(LIBRSVG_MICRO_VERSION)

LIBRSVG_VERSION=$LIBRSVG_MAJOR_VERSION.$LIBRSVG_MINOR_VERSION.$LIBRSVG_MICRO_VERSION

VERSION_INFO=`expr $LIBRSVG_MAJOR_VERSION + $LIBRSVG_MINOR_VERSION`:$LIBRSVG_MICRO_VERSION:$LIBRSVG_MINOR_VERSION
AC_SUBST(VERSION_INFO)

dnl ===========================================================================

AM_INIT_AUTOMAKE(librsvg, $LIBRSVG_VERSION)
AM_CONFIG_HEADER(config.h)

AM_MAINTAINER_MODE

AC_ISC_POSIX
AC_PROG_CC
AC_PROG_CPP
AC_PROG_AWK
AM_PROG_LIBTOOL
AC_STDC_HEADERS

AC_C_BIGENDIAN

GNOME_REQUIRE_PKGCONFIG

dnl ===========================================================================

PKG_CHECK_MODULES(LIBRSVG, \
	gdk-pixbuf-2.0 >= $GDK_PIXBUF_REQUIRED \
	glib-2.0 >= $GLIB_REQUIRED \
	libart-2.0 >= $LIBART_REQUIRED \
	libxml-2.0 >= $LIBXML_REQUIRED \
	pangoft2 >= $PANGOFT2_REQUIRED)
AC_SUBST(LIBRSVG_LIBS)
AC_SUBST(LIBRSVG_CFLAGS)

dnl ===========================================================================

AC_CHECK_LIB(popt, poptParseArgvString, [POPT_LIBS="-lpopt"],
AC_MSG_ERROR([popt 1.5 or newer is required to build librsvg.
You can download the latest version from ftp://ftp.rpm.org/pub/rpm/dist/rpm-4.0.x/]))
AC_SUBST(POPT_LIBS)

dnl ===========================================================================

LIBGSF_CFLAGS=""
LIBGSF_LIBS=""

LIBGSFPKG=""
test_gsf=true
AC_ARG_WITH(svgz,[  --with-svgz  Use libgsf for run-time decompression],[
	if test "x$withval" = "xno"; then
		test_gsf=false
	fi
])
if test "x$test_gsf" = "xtrue"; then
	PKG_CHECK_MODULES(LIBGSF,[libgsf-1 >= 1.6.0], test_gsf=true, test_gsf=false)
fi

if test "x$test_gsf" = "xtrue"; then
	LIBGSF_CFLAGS="$LIBGSF_CFLAGS -DHAVE_SVGZ=1"
	LIBGSFPKG="libgsf-1"
else
	AC_MSG_WARN([SVGZ support disabled, as requested (Use --with-svgz to enable)])
fi
AM_CONDITIONAL(WITH_LIBGSF,[test "$LIBGSFPKG" != ""])

AC_SUBST(LIBGSFPKG)

AC_SUBST(LIBGSF_CFLAGS)
AC_SUBST(LIBGSF_LIBS)

dnl ===========================================================================

dnl Turn on the additional warnings last, so -Werror doesn't affect other tests.

AC_ARG_ENABLE(more-warnings,
[  --enable-more-warnings  Maximum compiler warnings],
set_more_warnings="$enableval",[
if test -f $srcdir/CVSVERSION; then
        is_cvs_version=true
        set_more_warnings=yes
else
        set_more_warnings=no
fi
])
AC_MSG_CHECKING(for more warnings, including -Werror)
if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
        AC_MSG_RESULT(yes)
        CFLAGS="\
        -Wall \
        -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes \
        -Wnested-externs -Wpointer-arith \
        -Wcast-align -Wsign-compare \
        -Werror \
        $CFLAGS"

        for option in -Wsign-promo -Wno-sign-compare; do
                SAVE_CFLAGS="$CFLAGS"
                CFLAGS="$option $CFLAGS"
                AC_MSG_CHECKING([whether gcc understands $option])
                AC_TRY_COMPILE([], [],
                        has_option=yes,
                        has_option=no,)
                if test $has_option = no; then
			CFLAGS="$SAVE_CFLAGS"
                fi
                AC_MSG_RESULT($has_option)
                unset has_option
                unset SAVE_CFLAGS
        done
        unset option
else
        AC_MSG_RESULT(no)
fi

AC_ARG_ENABLE(gtk-theme,
    [  --enable-gtk-theme  Enable a RSVG based GTK+ theme engine [default=auto]],,
    enable_gtk_theme=yes)

if test "x$enable_gtk_theme" = "xyes"; then
	AC_MSG_CHECKING([for gtk+ engine support])
	PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 1.3.12, enable_gtk_theme=yes,
        	enable_gtk_theme=no)
	AC_MSG_RESULT([$enable_gtk_theme])
GTK_VERSION=`$PKG_CONFIG --variable=gtk_binary_version gtk+-2.0`
AC_SUBST(GTK_CFLAGS)
AC_SUBST(GTK_LIBS)
AC_SUBST(GTK_VERSION)
fi

AM_CONDITIONAL(ENABLE_GTK_ENGINE, test "x$enable_gtk_theme" = "xyes")

AC_PATH_PROG(QUERYLOADERS, gdk-pixbuf-query-loaders, true)

AC_ARG_ENABLE(pixbuf-loader,
    [  --enable-pixbuf-loader  Enable a RSVG based GdkPixbuf loader [default=auto]],
    enable_pixbuf_loader="$enableval", enable_pixbuf_loader=auto)

if test "x$enable_pixbuf_loader" = xauto ; then
    if test x$QUERYLOADERS != x ; then 
        enable_pixbuf_loader=yes
    else
        enable_pixbuf_loader=no
    fi
fi

AM_CONDITIONAL(ENABLE_PIXBUF_LOADER, test x$enable_pixbuf_loader = xyes)

##################################################
# Checks for gtk-doc and docbook-tools
##################################################

AC_ARG_WITH(html-dir, [  --with-html-dir=PATH    path to installed docs ])

if test "x$with_html_dir" = "x" ; then
  HTML_DIR='${datadir}/doc/librsvg/html'
else
  HTML_DIR=$with_html_dir
fi

AC_SUBST(HTML_DIR)

AC_CHECK_PROG(GTKDOC, gtkdoc-mkdb, true, false)

gtk_doc_min_version=0.9
if $GTKDOC ; then 
    gtk_doc_version=`gtkdoc-mkdb --version`
    AC_MSG_CHECKING([gtk-doc version ($gtk_doc_version) >= $gtk_doc_min_version])

    IFS="${IFS= 	}"; gtk_save_IFS="$IFS"; IFS="."
    set $gtk_doc_version
    for min in $gtk_doc_min_version ; do
        cur=$1; shift
        if test -z $min ; then break; fi
        if test -z $cur ; then GTKDOC=false; break; fi
        if test $cur -gt $min ; then break ; fi
        if test $cur -lt $min ; then GTKDOC=false; break ; fi
    done
    IFS="$gtk_save_IFS"

    if $GTKDOC ; then
      AC_MSG_RESULT(yes)
   else
      AC_MSG_RESULT(no)
   fi
fi

AC_CHECK_PROG(DB2HTML, db2html, true, false)
AM_CONDITIONAL(HAVE_DOCBOOK, $DB2HTML)

dnl Make people enable the gtk-doc stuff explicitely.
AC_ARG_ENABLE(gtk-doc, [  --disable-gtk-doc        use gtk-doc to build documentation [default=yes]], enable_gtk_doc="$enableval", enable_gtk_doc=yes)

if test x$enable_gtk_doc = xyes ; then
  if test x$GTKDOC != xtrue ; then
    enable_gtk_doc=no 
  fi
fi

dnl NOTE: We need to use a separate automake conditional for this
dnl       to make this work with the tarballs.
AM_CONDITIONAL(ENABLE_GTK_DOC, test x$enable_gtk_doc = xyes)

dnl ===========================================================================

AC_OUTPUT([
librsvg.spec
librsvg-features.h
Makefile
librsvg-2.0.pc
doc/Makefile
gtk-engine/Makefile
gtk-engine/examples/Makefile
gtk-engine/examples/bubble/Makefile
gtk-engine/examples/bubble/gtk-2.0/Makefile
gdk-pixbuf-loader/Makefile
])