dnl Process this file with autoconf to produce a configure script.

AC_INIT(README)

dnl Set various version strings - taken gratefully from the GTk sources

# Making releases:

# MICRO_VERSION += 1;

# INTERFACE_AGE += 1;

# BINARY_AGE += 1;

# if any functions have been added, set INTERFACE_AGE to 0.

# if backwards compatibility has been broken,

# set BINARY_AGE and INTERFACE_AGE to 0.

MAJOR_VERSION=1

MINOR_VERSION=1

MICRO_VERSION=0

INTERFACE_AGE=0

BINARY_AGE=0

VERSION=$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION

AC_SUBST(MAJOR_VERSION)

AC_SUBST(MINOR_VERSION)

AC_SUBST(MICRO_VERSION)

AC_SUBST(INTERFACE_AGE)

AC_SUBST(BINARY_AGE)

AC_SUBST(VERSION)

# libtool versioning

LT_RELEASE=$MAJOR_VERSION.$MINOR_VERSION

LT_CURRENT=`expr $MICRO_VERSION - $INTERFACE_AGE`

LT_REVISION=$INTERFACE_AGE

LT_AGE=`expr $BINARY_AGE - $INTERFACE_AGE`

AC_SUBST(LT_RELEASE)

AC_SUBST(LT_CURRENT)

AC_SUBST(LT_REVISION)

AC_SUBST(LT_AGE)

dnl Setup for automake

AM_INIT_AUTOMAKE(SDL_image, $VERSION)

dnl Detect the canonical host and target build environment

AC_CANONICAL_HOST

AC_CANONICAL_TARGET

dnl Check for tools

AC_LIBTOOL_WIN32_DLL

AM_PROG_LIBTOOL

AC_PROG_MAKE_SET

AC_PROG_CC

AC_PROG_INSTALL

dnl The alpha architecture needs special flags for binary portability

case "$target" in

alpha*-*-linux*)

CFLAGS="$CFLAGS -mcpu=ev4 -Wa,-mall"

;;

*-*-cygwin* | *-*-mingw32*)

if test "$build" != "$target"; then # cross-compiling

ac_default_prefix=/usr/local/cross-tools/i386-mingw32msvc

fi

;;

esac

dnl Check for SDL

AM_PATH_SDL($SDL_VERSION,

:,

AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])

)

CFLAGS="$CFLAGS $SDL_CFLAGS"

IMG_LIBS="$IMG_LIBS $SDL_LIBS"

dnl Check command-line options

AC_ARG_ENABLE(bmp,

[ --enable-bmp support loading BMP images [default=yes]],

, enable_bmp=yes)

if test x$enable_bmp = xyes; then

CFLAGS="$CFLAGS -DLOAD_BMP"

fi

AC_ARG_ENABLE(gif,

[ --enable-gif support loading GIF images [default=yes]],

, enable_gif=yes)

if test x$enable_gif = xyes; then

CFLAGS="$CFLAGS -DLOAD_GIF"

fi

AC_ARG_ENABLE(jpg,

[ --enable-jpg support loading JPG images [default=yes]],

, enable_jpg=yes)

if test x$enable_jpg = xyes; then

AC_CHECK_LIB(jpeg, jpeg_CreateDecompress, have_libjpeg=yes)

if test x$have_libjpeg = xyes; then

CFLAGS="$CFLAGS -DLOAD_JPG"

IMG_LIBS="$IMG_LIBS -ljpeg"

else

AC_MSG_WARN(

*** Unable to find JPEG library (http://www.ijg.org/)

])

AC_MSG_WARN([JPG image loading disabled])

fi

fi

AC_ARG_ENABLE(pcx,

[ --enable-pcx support loading PCX images [default=yes]],

, enable_pcx=yes)

if test x$enable_pcx = xyes; then

CFLAGS="$CFLAGS -DLOAD_PCX"

fi

AC_ARG_ENABLE(png,

[ --enable-png support loading PNG images [default=yes]],

, enable_png=yes)

if test x$enable_png = xyes; then

AC_CHECK_LIB(png, png_create_read_struct, have_libpng=yes, , -lz)

if test x$have_libpng != xyes; then

AC_MSG_WARN([

*** Unable to find PNG library (http://www.cdrom.com/pub/png/)

])

fi

AC_CHECK_LIB(z, uncompress, have_libz=yes)

if test x$have_libz != xyes; then

AC_MSG_WARN([

*** Unable to find Zlib library (http://www.cdrom.com/pub/infozip/zlib/)

])

fi

if test x$have_libpng = xyes -a x$have_libz = xyes; then

CFLAGS="$CFLAGS -DLOAD_PNG"

IMG_LIBS="$IMG_LIBS -lpng -lz"

else

AC_MSG_WARN([PNG image loading disabled])

fi

fi

AC_ARG_ENABLE(ppm,

[ --enable-ppm support loading PPM images [default=yes]],

, enable_ppm=yes)

if test x$enable_ppm = xyes; then

CFLAGS="$CFLAGS -DLOAD_PPM"

fi

AC_ARG_ENABLE(tga,

[ --enable-tga support loading TGA images [default=yes]],

, enable_tga=yes)

if test x$enable_tga = xyes; then

CFLAGS="$CFLAGS -DLOAD_TGA"

fi

AC_ARG_ENABLE(tif,

[ --enable-tif support loading TIFF images [default=no]],

, enable_tif=no)

if test x$enable_tif = xyes; then

AC_CHECK_LIB(tiff, TIFFClientOpen, have_libtiff=yes)

if test x$have_libtiff = xyes; then

CFLAGS="$CFLAGS -DLOAD_TIF"

IMG_LIBS="$IMG_LIBS -ltiff"

else

AC_MSG_WARN(

*** Unable to find Tiff library (ftp://ftp.sgi.com/graphics/tiff/)

])

AC_MSG_WARN([TIF image loading disabled])

fi

fi

AC_ARG_ENABLE(xpm,

[ --enable-xpm support loading XPM images [default=yes]],

, enable_xpm=yes)

if test x$enable_xpm = xyes; then

CFLAGS="$CFLAGS -DLOAD_XPM"

fi

AC_SUBST(IMG_LIBS)

# Finally create all the generated files

AC_OUTPUT([

Makefile

SDL_image.spec

])