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=2

MICRO_VERSION=6

INTERFACE_AGE=5

BINARY_AGE=6

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 Detect the canonical build and host environments

AC_CANONICAL_HOST

dnl Setup for automake

AM_INIT_AUTOMAKE(SDL_image, $VERSION)

dnl Check for tools

AC_LIBTOOL_WIN32_DLL

AM_PROG_LIBTOOL

AC_PROG_CC

AC_C_INLINE

AC_PROG_INSTALL

AC_PROG_MAKE_SET

if test -z "$host_alias"; then

hostaliaswindres=

else

hostaliaswindres="$host_alias-windres"

fi

AC_CHECK_PROGS(WINDRES, [windres $hostaliaswindres $host_os-windres])

case "$host" in

*-*-beos*)

ac_default_prefix=/boot/develop/tools/gnupro

;;

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

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

# Default cross-compile location

ac_default_prefix=/usr/local/cross-tools/i386-mingw32

else

# Look for the location of the tools and install there

if test "$BUILD_PREFIX" != ""; then

ac_default_prefix=$BUILD_PREFIX

fi

fi

if test x$WINDRES != x; then

use_version_rc=true

fi

;;

esac

AM_CONDITIONAL(USE_VERSION_RC, test x$use_version_rc = xtrue)

dnl Check for SDL

SDL_VERSION=1.2.10

AM_PATH_SDL($SDL_VERSION,

:,

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

)

CFLAGS="$CFLAGS $SDL_CFLAGS"

LIBS="$LIBS $SDL_LIBS"

saved_LIBS="$LIBS"

dnl Check command-line options

AC_ARG_ENABLE([bmp], [AC_HELP_STRING([--enable-bmp], [support loading BMP images [default=yes]])],

[], [enable_bmp=yes])

AC_ARG_ENABLE([gif], [AC_HELP_STRING([--enable-gif], [support loading GIF images [default=yes]])],

[], [enable_gif=yes])

AC_ARG_ENABLE([jpg], [AC_HELP_STRING([--enable-jpg], [support loading JPG images [default=yes]])],

[], [enable_jpg=yes])

AC_ARG_ENABLE([jpg-shared], AC_HELP_STRING([--enable-jpg-shared], [dynamically load JPG support [[default=yes]]]),

[], [enable_jpg_shared=yes])

AC_ARG_ENABLE([lbm], [AC_HELP_STRING([--enable-lbm], [support loading LBM images [default=yes]])],

[], [enable_lbm=yes])

AC_ARG_ENABLE([pcx], [AC_HELP_STRING([--enable-pcx], [support loading PCX images [default=yes]])],

[], [enable_pcx=yes])

AC_ARG_ENABLE([png], [AC_HELP_STRING([--enable-png], [support loading PNG images [default=yes]])],

[], [enable_png=yes])

AC_ARG_ENABLE([png-shared], AC_HELP_STRING([--enable-png-shared], [dynamically load PNG support [[default=yes]]]),

[], [enable_png_shared=yes])

AC_ARG_ENABLE([pnm], [AC_HELP_STRING([--enable-pnm], [support loading PNM images [default=yes]])],

[], [enable_pnm=yes])

AC_ARG_ENABLE([tga], [AC_HELP_STRING([--enable-tga], [support loading TGA images [default=yes]])],

[], [enable_tga=yes])

AC_ARG_ENABLE([tif], [AC_HELP_STRING([--enable-tif], [support loading TIFF images [default=yes]])],

[], [enable_tif=yes])

AC_ARG_ENABLE([tif-shared], AC_HELP_STRING([--enable-tif-shared], [dynamically load TIFF support [[default=yes]]]),

[], [enable_tif_shared=yes])

AC_ARG_ENABLE([xcf], [AC_HELP_STRING([--enable-xcf], [support loading XCF images [default=yes]])],

[], [enable_xcf=yes])

AC_ARG_ENABLE([xpm], [AC_HELP_STRING([--enable-xpm], [support loading XPM images [default=yes]])],

[], [enable_xpm=yes])

AC_ARG_ENABLE([xv], [AC_HELP_STRING([--enable-xv], [support loading XV images [default=yes]])],

[], [enable_xv=yes])

if test x$enable_png = xyes || test x$enable_tif = xyes; then

CHECK_ZLIB()

fi

find_lib()

{

gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]

env_lib_path=[`echo $LIBS $LDFLAGS | sed 's/-L[ ]*//g'`]

for path in $gcc_lib_path $env_lib_path /usr/lib /usr/local/lib; do

lib=[`ls -- $path/$1 2>/dev/null | sort -r | sed 's/.*\/\(.*\)/\1/; q'`]

if test x$lib != x; then

echo $lib

return

fi

done

}

if test x$enable_jpg = xyes || test x$enable_tif = xyes; then

AC_CHECK_HEADER([jpeglib.h], [have_jpg_hdr=yes])

AC_CHECK_LIB([jpeg], [jpeg_CreateDecompress], [have_jpg_lib=yes])

if test x$have_jpg_hdr = xyes -a x$have_jpg_lib = xyes; then

if test x$enable_jpg = xyes; then

AC_DEFINE([LOAD_JPG])

fi

LIBS="-ljpeg $LIBS"

case "$host" in

*-*-darwin*)

jpg_lib=[`find_lib libjpeg.dylib`]

;;

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

jpg_lib=[`find_lib "jpeg*dll"`]

;;

*)

jpg_lib=[`find_lib "libjpeg.so.[0-9]*"`]

;;

esac

elif test x$enable_jpg = xyes; then

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

AC_MSG_WARN([JPG image loading disabled])

fi

fi

if test x$enable_png = xyes; then

AC_CHECK_HEADER([png.h], [have_png_hdr=yes])

AC_CHECK_LIB([png], [png_create_read_struct], [have_png_lib=yes])

if test x$have_png_hdr = xyes -a x$have_png_lib = xyes; then

AC_DEFINE([LOAD_PNG])

case "$host" in

*-*-darwin*)

png_lib=[`find_lib libpng.dylib`]

;;

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

png_lib=[`find_lib "png*dll"`]

;;

*)

png_lib=[`find_lib "libpng.so.[0-9]*"`]

;;

esac

else

AC_MSG_WARN([*** Unable to find PNG library (http://www.libpng.org/pub/png/libpng.html)])

AC_MSG_WARN([PNG image loading disabled])

fi

fi

if test x$enable_tif = xyes; then

AC_CHECK_HEADER([tiffio.h], [have_tif_hdr=yes])

AC_CHECK_LIB([tiff], [TIFFClientOpen], [have_tif_lib=yes])

if test x$have_tif_hdr = xyes -a x$have_tif_lib = xyes; then

AC_DEFINE([LOAD_TIF])

case "$host" in

*-*-darwin*)

tif_lib=[`find_lib libtiff.dylib`]

;;

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

tif_lib=[`find_lib "tiff*dll"`]

;;

*)

tif_lib=[`find_lib "libtiff.so.[0-9]*"`]

;;

esac

else

AC_MSG_WARN([*** Unable to find Tiff library (http://www.remotesensing.org/libtiff/)])

AC_MSG_WARN([TIF image loading disabled])

fi

fi

if test x$enable_bmp = xyes; then

AC_DEFINE([LOAD_BMP])

fi

if test x$enable_gif = xyes; then

AC_DEFINE([LOAD_GIF])

fi

if test x$enable_lbm = xyes; then

AC_DEFINE([LOAD_LBM])

fi

if test x$enable_pcx = xyes; then

AC_DEFINE([LOAD_PCX])

fi

if test x$enable_pnm = xyes; then

AC_DEFINE([LOAD_PNM])

fi

if test x$enable_tga = xyes; then

AC_DEFINE([LOAD_TGA])

fi

if test x$enable_xcf = xyes; then

AC_DEFINE([LOAD_XCF])

fi

if test x$enable_xpm = xyes; then

AC_DEFINE([LOAD_XPM])

fi

if test x$enable_xv = xyes; then

AC_DEFINE([LOAD_XV])

fi

if test x$enable_tif = xyes -a x$have_tif_hdr = xyes -a x$have_tif_lib = xyes; then

if test x$enable_tif_shared = xyes && test x$tif_lib != x; then

echo "-- dynamic libtiff -> $tif_lib"

AC_DEFINE_UNQUOTED(LOAD_TIF_DYNAMIC, "$tif_lib")

else

if test x$have_libjpeg = xyes; then

# Disable dynamic jpeg since we're linking it explicitly

jpg_lib=''

fi

IMG_LIBS="-ltiff -lz $IMG_LIBS"

fi

fi

if test x$enable_jpg = xyes -a x$have_jpg_hdr = xyes -a x$have_jpg_lib = xyes; then

if test x$enable_jpg_shared = xyes && test x$jpg_lib != x; then

echo "-- dynamic libjpeg -> $jpg_lib"

AC_DEFINE_UNQUOTED(LOAD_JPG_DYNAMIC, "$jpg_lib")

else

IMG_LIBS="-ljpeg $IMG_LIBS"

fi

fi

if test x$enable_png = xyes -a x$have_png_hdr = xyes -a x$have_png_lib = xyes; then

if test x$enable_png_shared = xyes && test x$png_lib != x; then

echo "-- dynamic libpng -> $png_lib"

AC_DEFINE_UNQUOTED(LOAD_PNG_DYNAMIC, "$png_lib")

else

IMG_LIBS="-lpng -lz $IMG_LIBS"

fi

fi

LIBS="$saved_LIBS"

AC_SUBST([WINDRES])

AC_SUBST([IMG_LIBS])

# Finally create all the generated files

AC_OUTPUT([

Makefile

SDL_image.spec

SDL_image.qpg

])