# Process this file with autoconf to produce a configure script.
AC_INIT(include/vips/colour.h)
AM_CONFIG_HEADER(config.h)

# user-visible library versioning
IM_MAJOR_VERSION=7
IM_MINOR_VERSION=13
IM_MICRO_VERSION=3
IM_VERSION=$IM_MAJOR_VERSION.$IM_MINOR_VERSION.$IM_MICRO_VERSION
IM_VERSION_STRING=$IM_VERSION-`date`

VERSION=$IM_VERSION
PACKAGE=vips

# libtool library versioning ... not user-visible (except as part of the
# library file name) and does not correspond to major/minor/micro above

# rules:
# sources changed: increment revision
# interface changed: increment current, reset revision to 0
#   interface changes backwards compatible?: increment age
#   interface changes not backwards compatible?: reset age to 0

LIBRARY_CURRENT=18
LIBRARY_REVISION=0
LIBRARY_AGE=3

AM_INIT_AUTOMAKE($PACKAGE,$VERSION)

# patched into include/vips/version.h
AC_SUBST(IM_VERSION)
AC_SUBST(IM_VERSION_STRING)
AC_SUBST(IM_MAJOR_VERSION)
AC_SUBST(IM_MINOR_VERSION)
AC_SUBST(IM_MICRO_VERSION)

# put into library name by libsrc/Makefile.am and libsrcCC/Makefile.am
AC_SUBST(LIBRARY_CURRENT)
AC_SUBST(LIBRARY_REVISION)
AC_SUBST(LIBRARY_AGE)

AC_CANONICAL_HOST

AC_MSG_CHECKING([for native Win32])
case "$host" in
  *-*-mingw*)
    vips_os_win32=yes
    ;;
  *)
    vips_os_win32=no
    ;;
esac
AC_MSG_RESULT([$vips_os_win32])

if test x"$vips_os_win32" = "xyes"; then
  AC_DEFINE(OS_WIN32,1,[native win32])

  # makes gcc use win native alignment
  VIPS_CFLAGS="-mms-bitfields $VIPS_CFLAGS"
fi

# CImg needs flags changed on win32
if test x"$vips_os_win32" = "xyes"; then
  AM_CONDITIONAL(OS_WIN32, true)
else
  AM_CONDITIONAL(OS_WIN32, false)
fi

# Cygwin/mingw need binary open to avoid CR/LF madness
# ... should be a better way to test for this
AC_MSG_CHECKING([for binary open needed])
case "$host_os" in
  cygwin* | mingw*)
    vips_binary_open=yes
    ;;
  *)
    vips_binary_open=no
    ;;
esac
AC_MSG_RESULT([$vips_binary_open])
if test x"$vips_binary_open" = "xyes"; then
  AC_DEFINE(BINARY_OPEN,1,[define to open non-text files in binary mode])
fi

# we want largefile support, if possible
AC_SYS_LARGEFILE

# Checks for programs.
AC_PROG_AWK
AC_PROG_CC
AC_PROG_CC_STDC
AC_C_CONST
AC_PROG_RANLIB
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_CXX
AM_WITH_DMALLOC

# vips.c/im_guess_prefix.c need to know the exe suffix and (as a fallback)
# the install prefix
AC_DEFINE_UNQUOTED(IM_EXEEXT,"$EXEEXT",[extension for executable files])
AC_DEFINE_UNQUOTED(IM_PREFIX,"$prefix",[configure-time install prefix])

# i18n
GETTEXT_PACKAGE=vips7
AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE",
        [The prefix for our gettext translation domains.])
# the 'malkovich' one is there for testing only
# ALL_LINGUAS="en_GB malkovich"
ALL_LINGUAS="en_GB"
AC_PROG_INTLTOOL
AM_GLIB_GNU_GETTEXT

# Checks for libraries.

# build list of pkg-config packages we used here
PACKAGES_USED=""

# Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS([errno.h math.h fcntl.h limits.h stdlib.h string.h sys/file.h sys/ioctl.h sys/param.h sys/time.h sys/mman.h sys/types.h sys/stat.h unistd.h io.h direct.h windows.h])

# uncomment to change which libs we build
# AC_DISABLE_SHARED
# AC_DISABLE_STATIC
# couldn't get this working :-( maybe try again with the next libtool
AC_LIBTOOL_WIN32_DLL
AC_CHECK_TOOL(DLLWRAP, dllwrap)
AC_CHECK_TOOL(DLLTOOL, dlltool)
AC_CHECK_TOOL(OBJDUMP, objdump)
AC_CHECK_TOOL(RANLIB, ranlib)
AC_CHECK_TOOL(STRIP, strip)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(LD, ld)
AC_PROVIDE(AC_LIBTOOL_WIN32_DLL)
AC_PROG_LIBTOOL

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_SIZE_T

# Checks for library functions.
AC_FUNC_MEMCMP
AC_FUNC_MMAP
AC_FUNC_VPRINTF
AC_CHECK_FUNCS([getcwd gettimeofday getwd memset munmap putenv realpath strcasecmp strchr strcspn strdup strerror strrchr strspn vsnprintf realpath mkstemp mktemp random rand])
AC_CHECK_LIB(m,cbrt,[AC_DEFINE(HAVE_CBRT,1,[have cbrt() in libm.])])
AC_CHECK_LIB(m,hypot,[AC_DEFINE(HAVE_HYPOT,1,[have hypot() in libm.])])

# have to have these
PKG_CHECK_MODULES(REQUIRED, glib-2.0 >= 2.6 gmodule-2.0 >= 2.4 libxml-2.0 gobject-2.0)
PACKAGES_USED="$PACKAGES_USED glib-2.0 gmodule-2.0 libxml-2.0 gobject-2.0"

# option to eval without threads
AC_ARG_ENABLE(threads, AS_HELP_STRING([--enable-threads], [evaluate with threads (default: yes)]))

if test x"$enable_threads" != "xno"; then
  AC_DEFINE(HAVE_THREADS,1,[threaded evaluation])
  PKG_CHECK_MODULES(GTHREAD, gthread-2.0)
  PACKAGES_USED="$PACKAGES_USED gthread-2.0"
fi

# optional supporting libraries

# we can wrap fftw3 and fftw2 ... but just look for fftw3, since we can do
# that with pkg-config
AC_ARG_WITH([fftw3], AS_HELP_STRING([--without-fftw3], [build without fftw3 (default: test)]))

if test x"$with_fftw3" != "xno"; then
  PKG_CHECK_MODULES(FFTW3, fftw3,
    [AC_DEFINE(HAVE_FFTW3,1,[define if you have fftw3 installed.])
    PACKAGES_USED="$PACKAGES_USED fftw3"],
    [AC_MSG_WARN([fftw3 not found; disabling fftw support])])
fi

# ImageMagick ... detect attribute iteration too
AC_ARG_WITH([magick], AS_HELP_STRING([--without-magick], [build without libMagic (default: test)]))

if test x"$with_magick" != "xno"; then
  PKG_CHECK_MODULES(MAGICK, ImageMagick, 
    [AC_DEFINE(HAVE_MAGICK,1,[define if you have libMagick installed.])
    PACKAGES_USED="$PACKAGES_USED ImageMagick"],
    [AC_MSG_WARN([libMagick not found; disabling Magick support])])
fi

if test x"$with_magick" != "xno"; then
  # we need ResetImageAttributeIterator() / GetNextImageAttribute() to get
  # attrs, but that's 6.2+ I think ... test for them
  save_LIBS=$LIBS
  LIBS="$LIBS $MAGICK_LIBS"
  AC_CHECK_FUNCS(GetNextImageAttribute,
    AC_DEFINE(HAVE_MAGICK_ATTR,1,[define if your magick has attribute support.]))
  LIBS=$save_LIBS
fi

# liboil
AC_ARG_WITH([liboil], AS_HELP_STRING([--without-liboil], [build without liboil
(default: test)]))

if test x"$with_liboil" != "xno"; then
  PKG_CHECK_MODULES(LIBOIL, liboil-0.3,
    [AC_DEFINE(HAVE_LIBOIL,1,[define if you have liboil-0.3 installed.])
    PACKAGES_USED="$PACKAGES_USED liboil-0.3"],
    [AC_MSG_WARN([liboil not found; disabling liboil support])])
fi

# lcms
AC_ARG_WITH([lcms], AS_HELP_STRING([--without-lcms], [build without lcms (default: test)]))

if test x"$with_lcms" != "xno"; then
  PKG_CHECK_MODULES(LCMS, lcms,
    [AC_DEFINE(HAVE_LCMS,1,[define if you have lcms installed.])
    PACKAGES_USED="$PACKAGES_USED lcms"],
    [AC_MSG_WARN([lcms not found; disabling lcms support])])
fi

# OpenEXR
AC_ARG_WITH([OpenEXR], AS_HELP_STRING([--without-OpenEXR], [build without OpenEXR (default: test)]))

# require 1.2.2 since 1.2.1 has a broken ImfCloseTiledInputFile()
if test x"$with_OpenEXR" != "xno"; then
  PKG_CHECK_MODULES(OPENEXR, OpenEXR >= 1.2.2,
    [AC_DEFINE(HAVE_OPENEXR,1,[define if you have OpenEXR >=1.2.2 installed.])
    PACKAGES_USED="$PACKAGES_USED OpenEXR"],
    [AC_MSG_WARN([OpenEXR not found; disabling OpenEXR support])])
fi

# pangoft2
AC_ARG_WITH([pangoft2], AS_HELP_STRING([--without-pangoft2], [build without pangoft2 (default: test)]))

if test x"$with_pangoft2" != "xno"; then
  PKG_CHECK_MODULES(PANGOFT2, pangoft2,
    [AC_DEFINE(HAVE_PANGOFT2,1,[define if you have pangoft2 installed.])
    PACKAGES_USED="$PACKAGES_USED pangoft2"],
    [AC_MSG_WARN([pangoft2 not found; disabling pangoft2 support])])
fi

# hmm, these don't have .pc files on ubuntu 5.10, how odd
FIND_TIFF(,[AC_MSG_WARN([libtiff not found; disabling TIFF support])])
FIND_ZIP(,[AC_MSG_WARN([libz not found; disabling ZIP support])])
FIND_JPEG(,[AC_MSG_WARN([libjpeg not found; disabling JPEG support])])

# look for PNG with pkg-config ... fall back to our tester
PKG_CHECK_MODULES(PNG, libpng, 
  [AC_DEFINE(HAVE_PNG,1,[define if you have libpng installed.])
  PACKAGES_USED="$PACKAGES_USED libpng"],
  [FIND_PNG(,[AC_MSG_WARN([libpng not found; disabling PNG support])])])

# libexif
AC_ARG_WITH([libexif], AS_HELP_STRING([--without-libexif], [build without libexif (default: test)]))

if test x"$with_libexif" != "xno"; then
  PKG_CHECK_MODULES(EXIF, libexif >= 0.6,
    [AC_DEFINE(HAVE_EXIF,1,[define if you have libexif >= 0.6 installed.])
    PACKAGES_USED="$PACKAGES_USED libexif"],
    [AC_MSG_WARN([libexif >= 0.6 not found; disabling exif support])
    with_libexif=no])
fi

# some libexif packages need include <libexif/poop.h>, some just <poop.h>
# how annoying
if test x"$with_libexif" != "xno"; then
  # cppflags not cflags because we want the preproc to see the -I as well
  save_CPPFLAGS=$CPPFLAGS
  CPPFLAGS="$EXIF_CFLAGS $CPPFLAGS"
  AC_CHECK_HEADER(exif-data.h,
    AC_DEFINE(UNTAGGED_EXIF,1,[libexif includes don't need libexif prefix]))
  CPPFLAGS=$save_CPPFLAGS
fi

# Look for linux video
AC_CHECK_HEADER(linux/videodev.h, 
  AC_DEFINE(HAVE_VIDEODEV,1,[have video4linux 1]),[
  AC_MSG_WARN([linux/videodev.h not found; disabling Linux video support])
])

# make python binding?
AC_ARG_WITH([python], AS_HELP_STRING([--without-python], [build without Python bindings (default: test)]))

if test x"$with_python" != "xno"; then
  AM_PATH_PYTHON(2.2,,
    [with_python=no
     AC_MSG_WARN([Python not found; disabling Python binding])])
fi

if test x"$with_python" != "xno"; then
  AM_CHECK_PYTHON_HEADERS(,
    [with_python=no
     AC_MSG_WARN([Python headers not found])])
fi

# need SWIG too
if test x"$with_python" != "xno"; then
  AC_CHECK_PROG(HAVE_SWIG, swig, [yes])

  if test x"$HAVE_SWIG" != "xyes"; then
    with_python=no
    AC_MSG_WARN([SWIG not found; disabling Python binding])
  else
    with_python=yes
  fi
fi

if test x"$with_python" = "xyes"; then
  AM_CONDITIONAL(HAVE_PYTHON, true)
else
  AM_CONDITIONAL(HAVE_PYTHON, false)
fi

# Gather all up for VIPS_CFLAGS, VIPS_INCLUDES and VIPS_LIBS
VIPS_CFLAGS="$VIPS_CFLAGS $GTHREAD_CFLAGS $REQUIRED_CFLAGS $PANGOFT2_CFLAGS $FFTW3_CFLAGS $MAGICK_CFLAGS $PNG_CFLAGS $EXIF_CFLAGS $OPENEXR_CFLAGS $LIBOIL_CFLAGS"
VIPS_INCLUDES="$PNG_INCLUDES $TIFF_INCLUDES $ZIP_INCLUDES $JPEG_INCLUDES $FFTW_INCLUDES $LCMS_INCLUDES" 
VIPS_LIBS="$MAGICK_LIBS $PNG_LIBS $TIFF_LIBS $ZIP_LIBS $JPEG_LIBS $GTHREAD_LIBS $REQUIRED_LIBS $PANGOFT2_LIBS $FFTW3_LIBS $FFTW_LIBS $LCMS_LIBS $LIBOIL_LIBS $OPENEXR_LIBS $EXIF_LIBS -lm -lstdc++"

AC_SUBST(VIPS_CFLAGS)
AC_SUBST(VIPS_INCLUDES)
AC_SUBST(VIPS_LIBS)
AC_SUBST(PACKAGES_USED)

AC_OUTPUT([
	vips-7.13.pc
	vipsCC-7.13.pc
	vips-7.13.spec
	Makefile 
	include/vips/version.h 
	include/Makefile 
	include/vips/Makefile 
	libsrc/Makefile 
	libsrc/acquire/Makefile 
	libsrc/arithmetic/Makefile 
	libsrc/boolean/Makefile 
	libsrc/cimg/Makefile 
	libsrc/colour/Makefile 
	libsrc/conversion/Makefile 
	libsrc/convolution/Makefile 
	libsrc/freq_filt/Makefile 
	libsrc/histograms_lut/Makefile 
	libsrc/inplace/Makefile 
	libsrc/iofuncs/Makefile 
	libsrc/matrix/Makefile 
	libsrc/morphology/Makefile 
	libsrc/mosaicing/Makefile 
	libsrc/other/Makefile 
	libsrc/relational/Makefile 
	libsrc/video/Makefile 
	libsrcCC/Makefile 
	src/Makefile 
	src/iofuncs/Makefile 
	src/mosaicing/Makefile 
	src/other/Makefile 
	src/scripts/Makefile 
	src/scripts/batch_crop 
	src/scripts/batch_image_convert 
	src/scripts/batch_rubber_sheet 
	src/scripts/light_correct 
	src/scripts/shrink_width 
	man/Makefile 
	contrib/Makefile 
	contrib/vips2dj/Makefile 
	contrib/vips2dj/share/Makefile 
	contrib/vips2dj/share/vips2dj/Makefile 
	contrib/vips2dj/share/vips2dj/lab/Makefile 
	contrib/vips2dj/share/vips2dj/cmyk/Makefile 
	contrib/vips2dj/share/vips2dj/mono/Makefile 
	contrib/vdump/Makefile 
	contrib/mitsub/Makefile 
	python/Makefile 
	python/vipsCC/Makefile 
	po/Makefile.in
])