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AC_PREREQ(2.54)

# cairo package version number, (as distinct from shared library version)
# An odd micro number indicates in-progress development, (eg. from CVS)
# An even micro number indicates a released version.
m4_define(cairo_version_major, 0)
m4_define(cairo_version_minor, 9)
m4_define(cairo_version_micro, 1)

AC_INIT([cairo],
      cairo_version_major.cairo_version_minor.cairo_version_micro,
      [http://bugs.freedesktop.org/enter_bug.cgi?product=cairo])
AC_CONFIG_SRCDIR(src/cairo.h)
AC_CONFIG_HEADERS(config.h)
AM_INIT_AUTOMAKE([1.7])

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

# libtool shared library version

# Increment if the interface has additions, changes, removals.
LT_CURRENT=2

# Increment any time the source changes; set to
# 0 if you increment CURRENT
LT_REVISION=0

# Increment if any interfaces have been added; set to 0
# if any interfaces have been removed. removal has
# precedence over adding, so set to 0 if both happened.
LT_AGE=0

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

VERSION_INFO="$LT_CURRENT:$LT_REVISION:$LT_AGE"
AC_SUBST(VERSION_INFO)
CAIRO_VERSION_MAJOR=cairo_version_major()
CAIRO_VERSION_MINOR=cairo_version_minor()
CAIRO_VERSION_MICRO=cairo_version_micro()
AC_SUBST(CAIRO_VERSION_MAJOR)
AC_SUBST(CAIRO_VERSION_MINOR)
AC_SUBST(CAIRO_VERSION_MICRO)
AC_SUBST(CAIRO_VERSION_OTHER)

AM_MAINTAINER_MODE

AC_PROG_CC
AC_PROG_CPP
AM_PROG_LIBTOOL
AC_STDC_HEADERS
AC_C_BIGENDIAN

dnl ===========================================================================
dnl === Local macros
dnl ===========================================================================

# _CHECK_FUNCS_WITH_FLAGS(FUNCTION..., CFLAGS, LIBS 
#                         [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
# Like AC_CHECK_FUNCS but with additional CFLAGS and LIBS
# --------------------------------------------------------------------
AC_DEFUN([_CHECK_FUNCS_WITH_FLAGS],
[ 
  save_cflags="$CFLAGS"
  save_libs="$LIBS"
  CFLAGS="$CFLAGS $2"
  LIBS="$LIBS $3"
  AC_CHECK_FUNCS($1, $4, $5)
  CFLAGS="$save_cflags"
  LIBS="$save_libs"
])

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

AC_CHECK_FUNCS(vasnprintf)
	
AC_CHECK_LIBM

LIBS="$LIBS $LIBM"

AC_CHECK_FUNCS(sincos)

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

AC_ARG_ENABLE(xlib,
  [  --disable-xlib          Disable cairo's Xlib backend],
  [use_xlib=$enableval], [use_xlib=yes])

if test "x$use_xlib" = "xyes"; then
  dnl Check for Xrender header files if the Xrender package is not installed:
  PKG_CHECK_MODULES(XRENDER, xrender >= 0.6, [
    XRENDER_REQUIRES=xrender
    use_xlib=yes], [
      AC_CHECK_HEADER(X11/extensions/Xrender.h, [
      AC_PATH_XTRA
      XRENDER_LIBS="$X_LIBS -lXrender -lXext -lX11 $X_EXTRA_LIBS"
      use_xlib=yes], [
		use_xlib="no (requires Xrender http://freedesktop.org/Software/xlibs)"])])
  _CHECK_FUNCS_WITH_FLAGS(XrmFinalize, $XRENDER_CFLAGS, $XRENDER_LIBS)
fi

AM_CONDITIONAL(CAIRO_HAS_XLIB_SURFACE, test "x$use_xlib" = "xyes")
if test "x$use_xlib" = "xyes"; then
  XLIB_SURFACE_FEATURE="#define CAIRO_HAS_XLIB_SURFACE 1"
fi
AC_SUBST(XLIB_SURFACE_FEATURE)

AC_SUBST(XRENDER_REQUIRES)

CAIRO_CFLAGS="$CAIRO_CFLAGS $XRENDER_CFLAGS"
CAIRO_LIBS="$CAIRO_LIBS $XRENDER_LIBS"

AC_ARG_ENABLE(quartz,
  [  --disable-quartz          Disable cairo's quartz backend],
  [use_quartz=$enableval], [use_quartz=yes])

if test "x$use_quartz" = "xyes"; then
  dnl There is no pkgconfig for quartz; lets do a header check
  AC_CHECK_HEADER(Carbon/Carbon.h, [use_quartz=yes], [use_quartz=no])
fi

AM_CONDITIONAL(CAIRO_HAS_QUARTZ_SURFACE, test "x$use_quartz" = "xyes")
if test "x$use_quartz" = "xyes"; then
  QUARTZ_SURFACE_FEATURE="#define CAIRO_HAS_QUARTZ_SURFACE 1"
  QUARTZ_LIBS="-Xlinker -framework -Xlinker Carbon"
fi
AC_SUBST(QUARTZ_SURFACE_FEATURE)
CAIRO_LIBS="$CAIRO_LIBS $QUARTZ_LIBS"

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

AC_ARG_ENABLE(xcb,
  [  --disable-xcb           Disable cairo's XCB backend],
  [use_xcb=$enableval], [use_xcb=yes])

if test "x$use_xcb" = "xyes"; then
  PKG_CHECK_MODULES(XCB, xcb, [use_xcb=yes], [
  use_xcb="no (requires XCB http://xcb.freedesktop.org)"])
fi

AM_CONDITIONAL(CAIRO_HAS_XCB_SURFACE, test "x$use_xcb" = "xyes")
if test "x$use_xcb" = "xyes"; then
  XCB_SURFACE_FEATURE="#define CAIRO_HAS_XCB_SURFACE 1"
fi
AC_SUBST(XCB_SURFACE_FEATURE)

CAIRO_CFLAGS="$CAIRO_CFLAGS $XCB_CFLAGS"
CAIRO_LIBS="$CAIRO_LIBS $XCB_LIBS"


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

AC_MSG_CHECKING([for some Win32 platform])
case "$host" in
  *-*-mingw*|*-*-cygwin*)
    cairo_platform_win32=yes
    ;;
  *)
    cairo_platform_win32=no
    ;;
esac
AC_MSG_RESULT([$cairo_platform_win32])

AC_ARG_ENABLE(win32,
  [  --disable-win32          Disable cairo's Microsoft Windows backend],
  [use_win32=$enableval], [use_win32="yes"])

if test "x$cairo_platform_win32" != "xyes" ; then
  use_win32=no
fi

if test "x$use_win32" = "xyes"; then
   CAIRO_LIBS="$CAIRO_LIBS -lgdi32 -lmsimg32"
fi

AM_CONDITIONAL(CAIRO_HAS_WIN32_SURFACE, test "x$use_win32" = "xyes")
if test "x$use_win32" = "xyes"; then
  WIN32_SURFACE_FEATURE="#define CAIRO_HAS_WIN32_SURFACE 1"
fi
AC_SUBST(WIN32_SURFACE_FEATURE)

AM_CONDITIONAL(CAIRO_HAS_WIN32_FONT, test "x$use_win32" = "xyes")
if test "x$use_win32" = "xyes"; then
  WIN32_FONT_FEATURE="#define CAIRO_HAS_WIN32_FONT 1"
fi
AC_SUBST(WIN32_FONT_FEATURE)

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

AC_ARG_ENABLE(png,
  [  --disable-png           Disable cairo's PNG functions],
  [use_png=$enableval], [use_png=yes])

if test "x$use_png" = "xyes"; then
  use_png=no
  # libpng13 is GnuWin32's libpng-1.2.8 :-(
  for l in libpng12 libpng13 libpng10 ; do
    if $PKG_CONFIG --exists $l ; then
      PNG_REQUIRES=$l
      use_png=yes
      break
    fi
  done

  if test "x$use_png" = "xyes" ; then 
    # Sets PNG_CFLAGS, PNG_LIBS
    PKG_CHECK_MODULES(PNG, $PNG_REQUIRES)
  else
    AC_MSG_WARN([Could not find libpng in the pkg-config search path])
  fi    
fi

AM_CONDITIONAL(CAIRO_HAS_PNG_FUNCTIONS, test "x$use_png" = "xyes")
if test "x$use_png" = "xyes"; then
  PNG_FUNCTIONS_FEATURE="#define CAIRO_HAS_PNG_FUNCTIONS 1"
else
  AC_MSG_WARN("*** To run the tests, cairo must be built with png support ***)
fi
AC_SUBST(PNG_FUNCTIONS_FEATURE)

CAIRO_CFLAGS="$CAIRO_CFLAGS $PNG_CFLAGS"
CAIRO_LIBS="$CAIRO_LIBS $PNG_LIBS"

AC_SUBST(PNG_REQUIRES)

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

AC_ARG_ENABLE(glitz,
  [  --disable-glitz         Disable cairo's glitz backend],
  [use_glitz=$enableval], [use_glitz=yes])

if test "x$use_glitz" = "xyes"; then
  PKG_CHECK_MODULES(GLITZ, glitz >= 0.4.4, [
    GLITZ_REQUIRES=glitz
    use_glitz=yes], [use_glitz="no (requires glitz http://freedesktop.org/Software/glitz)"])
fi

AM_CONDITIONAL(CAIRO_HAS_GLITZ_SURFACE, test "x$use_glitz" = "xyes")
if test "x$use_glitz" = "xyes"; then
  GLITZ_SURFACE_FEATURE="#define CAIRO_HAS_GLITZ_SURFACE 1"
fi
AC_SUBST(GLITZ_SURFACE_FEATURE)

CAIRO_CFLAGS="$CAIRO_CFLAGS $GLITZ_CFLAGS"
CAIRO_LIBS="$CAIRO_LIBS $GLITZ_LIBS"

AC_SUBST(GLITZ_REQUIRES)

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

AC_ARG_ENABLE(freetype,
  [  --disable-freetype      Disable cairo's freetype font backend],
  [use_freetype=$enableval], [use_freetype=yes])

if test "x$use_freetype" = "xyes"; then
  PKG_CHECK_MODULES(FONTCONFIG, fontconfig, 
                    [use_freetype=yes], [use_freetype=no])
  _CHECK_FUNCS_WITH_FLAGS(FcFini, $FONTCONFIG_CFLAGS, $FONTCONFIG_LIBS)
fi

CAIRO_CFLAGS="$CAIRO_CFLAGS $FONTCONFIG_CFLAGS"
CAIRO_LIBS="$CAIRO_LIBS $FONTCONFIG_LIBS"

# Test for freetype2 separate from pkg-config since at least up to
# 2003-06-07, there was no freetype2.pc in the release.
#
# Freetype versions come in three forms:
#   release (such as 2.1.5)
#   libtool (such as 9.4.3) (returned by freetype-config)
#   platform-specific/soname (such as 6.3.4)
# and they recommend you never use the platform-specific version
# (see docs/VERSION.DLL in freetype2 sources)
#
# Set these as appropriate:

# release number - for information only
FREETYPE_MIN_RELEASE=2.1.0
# libtool-specific version - this is what is checked
FREETYPE_MIN_VERSION=8.0.2

if test "x$use_freetype" = "xyes"; then

  if test -z "$FREETYPE_CONFIG"; then
    AC_PATH_PROG(FREETYPE_CONFIG, freetype-config, no)
  fi
  if test "$FREETYPE_CONFIG" = "no" ; then
    AC_MSG_ERROR(No freetype-config script found in path or FREETYPE_CONFIG)
  fi

  AC_MSG_CHECKING(freetype2 libtool version)

  FREETYPE_VERSION=`$FREETYPE_CONFIG --version`

  VERSION_DEC=`echo $FREETYPE_VERSION | awk -F. '{printf("%d\n", 10000*$1 + 100*$2 + $3)};'`
  MIN_VERSION_DEC=`echo $FREETYPE_MIN_VERSION | awk -F. '{printf("%d\n", 10000*$1 + 100*$2 + $3)};'`
  if test $VERSION_DEC -lt $MIN_VERSION_DEC; then
    AC_MSG_ERROR($FREETYPE_VERSION - version $FREETYPE_MIN_VERSION from release $FREETYPE_MIN_RELEASE required)
  fi
  AC_MSG_RESULT($FREETYPE_VERSION - OK)

  FREETYPE_CFLAGS=`$FREETYPE_CONFIG --cflags`
  FREETYPE_LIBS=`$FREETYPE_CONFIG --libs`  
  FREETYPE_REQUIRES=fontconfig
  AC_SUBST(FREETYPE_CFLAGS)
  AC_SUBST(FREETYPE_LIBS)
  AC_SUBST(FREETYPE_REQUIRES)

  temp_save_libs="$LIBS"
  temp_save_cflags="$CFLAGS"
  LIBS="$LIBS $FREETYPE_LIBS"
  CFLAGS="$CFLAGS $FREETYPE_CFLAGS"
  AC_CHECK_MEMBER(FT_Bitmap_Size.y_ppem,
                  HAVE_FT_BITMAP_SIZE_Y_PPEM=1,
                  HAVE_FT_BITMAP_SIZE_Y_PPEM=0,
                  [#include<ft2build.h>
                   #include FT_FREETYPE_H])
  AC_DEFINE_UNQUOTED(HAVE_FT_BITMAP_SIZE_Y_PPEM,$HAVE_FT_BITMAP_SIZE_Y_PPEM,
                     [FT_Bitmap_Size structure includes y_ppem field])
  LIBS="$temp_save_libs"
  CFLAGS="$temp_save_cflags"
fi

CAIRO_CFLAGS="$CAIRO_CFLAGS $FREETYPE_CFLAGS"
CAIRO_LIBS="$CAIRO_LIBS $FREETYPE_LIBS"

AM_CONDITIONAL(CAIRO_HAS_FT_FONT, test "x$use_freetype" = "xyes")
if test "x$use_freetype" = "xyes"; then
  FT_FONT_FEATURE="#define CAIRO_HAS_FT_FONT 1"
fi
AC_SUBST(FT_FONT_FEATURE)

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

AC_CHECK_HEADERS([pthread.h], have_pthread=yes, have_pthread=no)
AM_CONDITIONAL(HAVE_PTHREAD, test "x$have_pthread" = "xyes")

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

AC_ARG_ENABLE(ps,
  [  --disable-ps            Disable cairo's PostScript backend],
  [use_ps=$enableval], [use_ps=yes])

if test x"$use_freetype" != "xyes" ; then
  AC_MSG_WARN([PS backend requires FreeType, disabling])
  use_ps=no
fi

# The postscript module requires zlib.
AC_CHECK_LIB(z, compress,
             [AC_CHECK_HEADER(zlib.h, [],
	         [use_ps="no (requires zlib http://www.gzip.org/zlib/)"])],
	     [use_ps="no (requires zlib http://www.gzip.org/zlib/)"])

AM_CONDITIONAL(CAIRO_HAS_PS_SURFACE, test "x$use_ps" = "xyes")
if test "x$use_ps" = "xyes"; then
  PS_SURFACE_FEATURE="#define CAIRO_HAS_PS_SURFACE 1"
  PS_LIBS=-lz
fi
AC_SUBST(PS_SURFACE_FEATURE)

CAIRO_LIBS="$CAIRO_LIBS $PS_LIBS"

AC_SUBST(PS_LIBS)

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

AC_ARG_ENABLE(pdf,
  [  --disable-pdf           Disable cairo's PDF backend],
  [use_pdf=$enableval], [use_pdf=yes])

if test x"$use_freetype" != "xyes" ; then
  AC_MSG_WARN([PDF backend requires FreeType, disabling])
  use_pdf=no
fi

AM_CONDITIONAL(CAIRO_HAS_PDF_SURFACE, test "x$use_pdf" = "xyes")
if test "x$use_pdf" = "xyes"; then
  PDF_SURFACE_FEATURE="#define CAIRO_HAS_PDF_SURFACE 1"
  PDF_LIBS=-lz
fi
AC_SUBST(PDF_SURFACE_FEATURE)

CAIRO_LIBS="$CAIRO_LIBS $PDF_LIBS"

AC_SUBST(PDF_LIBS)

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

dnl This check should default to 'yes' once we have code to actually
dnl check for the atsui font backend.

AC_ARG_ENABLE(atsui,
  [  --disable-atsui         Disable cairo's atsui font backend],
  [use_atsui=$enableval], [use_atsui=yes])

if test "x$use_atsui" = "xyes"; then
  dnl There is no pkgconfig for atsui; lets do a header check
  AC_CHECK_HEADER(Carbon/Carbon.h, [use_atsui=yes], [use_atsui=no])
fi

AM_CONDITIONAL(CAIRO_HAS_ATSUI_FONT, test "x$use_atsui" = "xyes")
if test "x$use_atsui" = "xyes"; then
  ATSUI_FONT_FEATURE="#define CAIRO_HAS_ATSUI_FONT 1"
fi
AC_SUBST(ATSUI_FONT_FEATURE)

dnl ===========================================================================
dnl Checks for precise integer types
AC_CHECK_HEADERS([stdint.h inttypes.h sys/int_types.h])
AC_CHECK_TYPES([uint64_t, uint128_t])

dnl Use lots of warning flags with GCC

WARN_CFLAGS=""

if test "x$GCC" = "xyes"; then
	WARN_CFLAGS="-Wall -Wpointer-arith -Wstrict-prototypes \
	-Wmissing-prototypes -Wmissing-declarations \
	-Wnested-externs -fno-strict-aliasing"
fi

CAIRO_CFLAGS="$CAIRO_CFLAGS $WARN_CFLAGS"
CAIRO_LIBS="$CAIRO_LIBS"

AC_SUBST(CAIRO_CFLAGS)
AC_SUBST(CAIRO_LIBS)

dnl ===========================================================================
dnl Check for gtk-doc and docbook

GTK_DOC_CHECK([1.3])

dnl ===========================================================================
dnl Check for recent pkg-config which supports Requires.private

case `$PKG_CONFIG --version` in
0.?|0.1[0-7]) PKGCONFIG_REQUIRES="Requires"; ;;
*) PKGCONFIG_REQUIRES="Requires.private"; ;;
esac

AC_SUBST(PKGCONFIG_REQUIRES)

AC_OUTPUT([
cairo.pc
Makefile
pixman/Makefile
pixman/src/Makefile
src/Makefile
src/cairo-features.h
test/Makefile
doc/Makefile
doc/public/Makefile
])

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

echo ""
echo "cairo will be compiled with the following surface backends:"
echo "  Xlib: $use_xlib"
echo "  Quartz: $use_quartz"
echo "  XCB: $use_xcb"
echo "  Win32: $use_win32"
echo "  PostScript: $use_ps"
echo "  PDF: $use_pdf"
echo "  glitz: $use_glitz"
echo ""
echo "the following font backends:"
echo "  FreeType: $use_freetype"
echo "  Win32: $use_win32"
echo "  ATSUI: $use_atsui"
echo ""
echo "and the following features:"
echo "  PNG functions: $use_png"

if test x"$use_freetype" != "xyes" && \
   test x"$use_win32"    != "xyes" && \
   test x"$use_atsui"    != "xyes" ; then

   AC_MSG_ERROR([Cairo requires at least one font backend.
		  Please install freetype and fontconfig, then try again:
		  http://freetype.org/	http://fontconfig.org/
		])
fi