configure.in
author Sam Lantinga <slouken@libsdl.org>
Sun, 28 Jan 2018 21:32:43 -0800
changeset 564 245e1a073937
parent 545 6ea5a39bf73a
child 577 d0c7f6c97cd2
permissions -rw-r--r--
Updated version to 2.0.3 in preparation for release
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dnl Process this file with autoconf to produce a configure script.
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AC_INIT(README.txt)
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dnl Set various version strings - taken gratefully from the GTk sources
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# Making releases:
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#   MICRO_VERSION += 1;
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#   INTERFACE_AGE += 1;
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#   BINARY_AGE += 1;
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# if any functions have been added, set INTERFACE_AGE to 0.
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# if backwards compatibility has been broken,
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# set BINARY_AGE and INTERFACE_AGE to 0.
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MAJOR_VERSION=2
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MINOR_VERSION=0
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MICRO_VERSION=3
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INTERFACE_AGE=0
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BINARY_AGE=2
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VERSION=$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION
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AC_SUBST(MAJOR_VERSION)
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AC_SUBST(MINOR_VERSION)
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AC_SUBST(MICRO_VERSION)
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AC_SUBST(INTERFACE_AGE)
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AC_SUBST(BINARY_AGE)
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AC_SUBST(VERSION)
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# libtool versioning
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LT_INIT([win32-dll])
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LT_RELEASE=$MAJOR_VERSION.$MINOR_VERSION
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LT_CURRENT=`expr $MICRO_VERSION - $INTERFACE_AGE`
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LT_REVISION=$INTERFACE_AGE
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LT_AGE=`expr $BINARY_AGE - $INTERFACE_AGE`
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AC_SUBST(LT_RELEASE)
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AC_SUBST(LT_CURRENT)
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AC_SUBST(LT_REVISION)
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AC_SUBST(LT_AGE)
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dnl Detect the canonical build and host environments
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AC_CANONICAL_HOST
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dnl Setup for automake
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AM_INIT_AUTOMAKE(SDL2_image, $VERSION)
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dnl Check for tools
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AC_PROG_LIBTOOL
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AC_PROG_CC
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AC_PROG_OBJC
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AC_C_INLINE
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AC_PROG_INSTALL
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AC_PROG_MAKE_SET
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if test -z "$host_alias"; then
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    hostaliaswindres=
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else
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    hostaliaswindres="$host_alias-windres"
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fi
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AC_CHECK_PROGS(WINDRES, [windres $hostaliaswindres $host_os-windres])
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case "$host" in
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    *-*-beos*)
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        ac_default_prefix=/boot/develop/tools/gnupro
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        ;;
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    *-*-cygwin* | *-*-mingw32*)
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        if test "$build" != "$host"; then # cross-compiling
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            # Default cross-compile location
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            ac_default_prefix=/usr/local/cross-tools/$host
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        else
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            # Look for the location of the tools and install there
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            if test "$BUILD_PREFIX" != ""; then
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                ac_default_prefix=$BUILD_PREFIX
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            fi
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        fi
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        if test x$WINDRES != x; then
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            use_version_rc=true
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        fi
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        ;;
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    *-*-darwin*)
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        AC_ARG_ENABLE([imageio], [AC_HELP_STRING([--enable-imageio], [use native Mac OS X frameworks for loading images [default=yes]])],
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                      [], [enable_imageio=yes])
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        if test x$enable_imageio = xyes; then
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            IMG_LIBS="-Wl,-framework,ApplicationServices -lobjc $IMG_LIBS"
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        else
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            CFLAGS="$CFLAGS -DSDL_IMAGE_USE_COMMON_BACKEND"
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        fi
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        ;;
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esac
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AM_CONDITIONAL(USE_IMAGEIO, test x$enable_imageio = xyes)
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AM_CONDITIONAL(USE_VERSION_RC, test x$use_version_rc = xtrue)
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dnl set this to use on systems that use lib64 instead of lib
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base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
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dnl Function to find a library in the compiler search path
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find_lib()
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{
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    gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
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    gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
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    env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
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    if test "$cross_compiling" = yes; then
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        host_lib_path=""
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    else
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        host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
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    fi
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    for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
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        lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
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        if test x$lib != x; then
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            echo $lib
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            return
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        fi
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    done
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}
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dnl Check for SDL
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SDL_VERSION=2.0.8
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AC_SUBST(SDL_VERSION)
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AM_PATH_SDL2($SDL_VERSION,
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            :,
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           AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])
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)
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CFLAGS="$CFLAGS $SDL_CFLAGS"
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LIBS="$LIBS $SDL_LIBS"
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saved_LIBS="$LIBS"
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dnl Check command-line options
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AC_ARG_ENABLE([bmp], [AC_HELP_STRING([--enable-bmp], [support loading BMP/ICO/CUR images [default=yes]])],
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 [], [enable_bmp=yes])
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AC_ARG_ENABLE([gif], [AC_HELP_STRING([--enable-gif], [support loading GIF images [default=yes]])],
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 [], [enable_gif=yes])
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AC_ARG_ENABLE([jpg], [AC_HELP_STRING([--enable-jpg], [support loading JPG images [default=yes]])],
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 [], [enable_jpg=yes])
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AC_ARG_ENABLE([jpg-shared], AC_HELP_STRING([--enable-jpg-shared], [dynamically load JPG support [[default=yes]]]),
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 [], [enable_jpg_shared=yes])
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AC_ARG_ENABLE([lbm], [AC_HELP_STRING([--enable-lbm], [support loading LBM images [default=yes]])],
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 [], [enable_lbm=yes])
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AC_ARG_ENABLE([pcx], [AC_HELP_STRING([--enable-pcx], [support loading PCX images [default=yes]])],
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 [], [enable_pcx=yes])
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AC_ARG_ENABLE([png], [AC_HELP_STRING([--enable-png], [support loading PNG images [default=yes]])],
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 [], [enable_png=yes])
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AC_ARG_ENABLE([png-shared], AC_HELP_STRING([--enable-png-shared], [dynamically load PNG support [[default=yes]]]),
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 [], [enable_png_shared=yes])
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AC_ARG_ENABLE([pnm], [AC_HELP_STRING([--enable-pnm], [support loading PNM images [default=yes]])],
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 [], [enable_pnm=yes])
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AC_ARG_ENABLE([svg], [AC_HELP_STRING([--enable-svg], [support loading SVG images [default=yes]])],
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 [], [enable_svg=yes])
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AC_ARG_ENABLE([tga], [AC_HELP_STRING([--enable-tga], [support loading TGA images [default=yes]])],
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 [], [enable_tga=yes])
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AC_ARG_ENABLE([tif], [AC_HELP_STRING([--enable-tif], [support loading TIFF images [default=yes]])],
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 [], [enable_tif=yes])
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AC_ARG_ENABLE([tif-shared], AC_HELP_STRING([--enable-tif-shared], [dynamically load TIFF support [[default=yes]]]),
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 [], [enable_tif_shared=yes])
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AC_ARG_ENABLE([xcf], [AC_HELP_STRING([--enable-xcf], [support loading XCF images [default=yes]])],
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 [], [enable_xcf=yes])
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AC_ARG_ENABLE([xpm], [AC_HELP_STRING([--enable-xpm], [support loading XPM images [default=yes]])],
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 [], [enable_xpm=yes])
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AC_ARG_ENABLE([xv], [AC_HELP_STRING([--enable-xv], [support loading XV images [default=yes]])],
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 [], [enable_xv=yes])
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AC_ARG_ENABLE([webp], [AC_HELP_STRING([--enable-webp], [support loading WEBP images [default=yes]])],
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 [], [enable_webp=yes])
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AC_ARG_ENABLE([webp-shared], AC_HELP_STRING([--enable-webp-shared], [dynamically load WEBP support [[default=yes]]]),
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 [], [enable_webp_shared=yes])
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dnl Show a message when we use ImageIO support so it's not a surprise
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AC_MSG_CHECKING([for ImageIO support])
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AC_MSG_RESULT($enable_imageio)
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if (test x$enable_jpg = xyes || test x$enable_tif = xyes) && test x$enable_imageio != xyes; then
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    AC_CHECK_HEADER([jpeglib.h], [have_jpg_hdr=yes])
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    AC_CHECK_LIB([jpeg], [jpeg_CreateDecompress], [have_jpg_lib=yes])
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    if test x$have_jpg_hdr = xyes -a x$have_jpg_lib = xyes; then
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        if test x$enable_jpg = xyes; then
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            AC_DEFINE([LOAD_JPG])
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        fi
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        LIBS="-ljpeg $LIBS"
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        case "$host" in
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            *-*-darwin*)
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                jpg_lib=[`find_lib libjpeg.dylib`]
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                ;;
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            *-*-cygwin* | *-*-mingw32*)
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                jpg_lib=[`find_lib "libjpeg*.dll"`]
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                ;;
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            *)
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                jpg_lib=[`find_lib "libjpeg[0-9]*.so.*"`]
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                if test x$jpg_lib = x; then
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                    jpg_lib=[`find_lib "libjpeg.so.*"`]
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                fi
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                ;;
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        esac
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    elif test x$enable_jpg = xyes; then
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        AC_MSG_WARN([*** Unable to find JPEG library (http://www.ijg.org/)])
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        AC_MSG_WARN([JPG image loading disabled])
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    fi
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fi
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if test x$enable_png = xyes -a x$enable_imageio != xyes; then
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    PKG_CHECK_MODULES([LIBPNG], [libpng], [dnl
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        have_png_hdr=yes
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        have_png_lib=yes
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      ], [dnl
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        AC_CHECK_HEADER([png.h], [
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            have_png_hdr=yes
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            LIBPNG_CFLAGS=""
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        ])
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        AC_CHECK_LIB([png], [png_create_read_struct], [
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            have_png_lib=yes
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            LIBPNG_LIBS="-lpng -lz"
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        ], [], [-lz])
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      ])
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    if test x$have_png_hdr = xyes -a x$have_png_lib = xyes; then
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        AC_DEFINE([LOAD_PNG])
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        case "$host" in
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            *-*-darwin*)
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                png_lib=[`find_lib libpng.dylib`]
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                ;;
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            *-*-cygwin* | *-*-mingw32*)
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                png_lib=[`find_lib "libpng*.dll"`]
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                ;;
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            *)
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                png_lib=[`find_lib "libpng[0-9]*.so.*"`]
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                if test x$png_lib = x; then
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                    png_lib=[`find_lib "libpng.so.*"`]
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                fi
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                ;;
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        esac
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    else
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        AC_MSG_WARN([*** Unable to find PNG library (http://www.libpng.org/pub/png/libpng.html)])
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        AC_MSG_WARN([PNG image loading disabled])
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    fi
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fi
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if test x$enable_tif = xyes -a x$enable_imageio != xyes; then
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    AC_CHECK_HEADER([tiffio.h], [have_tif_hdr=yes])
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    AC_CHECK_LIB([tiff], [TIFFClientOpen], [have_tif_lib=yes], [], [-lz])
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    if test x$have_tif_hdr = xyes -a x$have_tif_lib = xyes; then
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        AC_DEFINE([LOAD_TIF])
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        case "$host" in
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            *-*-darwin*)
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                tif_lib=[`find_lib libtiff.dylib`]
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                ;;
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            *-*-cygwin* | *-*-mingw32*)
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                tif_lib=[`find_lib "libtiff-*.dll"`]
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                ;;
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            *)
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                tif_lib=[`find_lib "libtiff[0-9]*.so.*"`]
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                if test x$tif_lib = x; then
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                    tif_lib=[`find_lib "libtiff.so.*"`]
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                fi
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                ;;
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        esac
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    else
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        AC_MSG_WARN([*** Unable to find Tiff library (http://www.remotesensing.org/libtiff/)])
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        AC_MSG_WARN([TIF image loading disabled])
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    fi
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fi
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if test x$enable_webp = xyes; then
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    PKG_CHECK_MODULES([LIBWEBP], [libwebp], [dnl
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        have_webp_hdr=yes
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        have_webp_lib=yes
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      ], [dnl
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        AC_CHECK_HEADER([webp/decode.h], [
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            have_webp_hdr=yes
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            LIBWEBP_CFLAGS=""
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        ])
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        AC_CHECK_LIB([webp], [WebPGetDecoderVersion], [
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            have_webp_lib=yes
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            LIBWEBP_LIBS="-lwebp"
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        ], [], [-lm])
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      ])
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    if test x$have_webp_hdr = xyes -a x$have_webp_lib = xyes; then
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        AC_DEFINE([LOAD_WEBP])
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        case "$host" in
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            *-*-darwin*)
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                webp_lib=[`find_lib libwebp.dylib`]
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                ;;
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            *-*-cygwin* | *-*-mingw32*)
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                webp_lib=[`find_lib "libwebp*.dll"`]
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                ;;
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            *)
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                webp_lib=[`find_lib "libwebp[0-9]*.so.*"`]
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                if test x$webp_lib = x; then
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                    webp_lib=[`find_lib "libwebp.so.*"`]
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                fi
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                ;;
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        esac
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    else
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        AC_MSG_WARN([*** Unable to find WEBP library (http://code.google.com/intl/en-US/speed/webp/index.html)])
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        AC_MSG_WARN([WEBP Pimage loading disabled])
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    fi
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fi
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if test x$enable_bmp = xyes; then
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    AC_DEFINE([LOAD_BMP])
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fi
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if test x$enable_gif = xyes; then
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    AC_DEFINE([LOAD_GIF])
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fi
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if test x$enable_lbm = xyes; then
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    AC_DEFINE([LOAD_LBM])
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fi
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if test x$enable_pcx = xyes; then
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    AC_DEFINE([LOAD_PCX])
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fi
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if test x$enable_pnm = xyes; then
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    AC_DEFINE([LOAD_PNM])
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fi
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if test x$enable_svg = xyes; then
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    AC_DEFINE([LOAD_SVG])
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fi
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if test x$enable_tga = xyes; then
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    AC_DEFINE([LOAD_TGA])
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fi
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if test x$enable_xcf = xyes; then
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    AC_DEFINE([LOAD_XCF])
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fi
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if test x$enable_xpm = xyes; then
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    AC_DEFINE([LOAD_XPM])
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fi
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if test x$enable_xv = xyes; then
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    AC_DEFINE([LOAD_XV])
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fi
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if test x$enable_webp = xyes -a x$have_webp_hdr = xyes -a x$have_webp_lib = xyes; then
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    CFLAGS="$LIBWEBP_CFLAGS $CFLAGS"
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    if test x$enable_webp_shared = xyes && test x$webp_lib != x; then
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        echo "-- dynamic libwebp -> $webp_lib"
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   341
        AC_DEFINE_UNQUOTED(LOAD_WEBP_DYNAMIC, "$webp_lib")
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   342
    else
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   343
        IMG_LIBS="$LIBWEBP_LIBS $IMG_LIBS"
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   344
    fi
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   345
fi
slouken@278
   346
slouken@168
   347
if test x$enable_tif = xyes -a x$have_tif_hdr = xyes -a x$have_tif_lib = xyes; then
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   348
    if test x$enable_tif_shared = xyes && test x$tif_lib != x; then
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   349
        echo "-- dynamic libtiff -> $tif_lib"
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   350
        AC_DEFINE_UNQUOTED(LOAD_TIF_DYNAMIC, "$tif_lib")
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   351
    else
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   352
        if test x$have_libjpeg = xyes; then
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   353
            # Disable dynamic jpeg since we're linking it explicitly
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   354
            jpg_lib=''
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   355
        fi
slouken@156
   356
        IMG_LIBS="-ltiff -lz $IMG_LIBS"
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   357
    fi
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   358
fi
slouken@168
   359
if test x$enable_jpg = xyes -a x$have_jpg_hdr = xyes -a x$have_jpg_lib = xyes; then
slouken@143
   360
    if test x$enable_jpg_shared = xyes && test x$jpg_lib != x; then
slouken@143
   361
        echo "-- dynamic libjpeg -> $jpg_lib"
slouken@143
   362
        AC_DEFINE_UNQUOTED(LOAD_JPG_DYNAMIC, "$jpg_lib")
slouken@143
   363
    else
slouken@143
   364
        IMG_LIBS="-ljpeg $IMG_LIBS"
slouken@143
   365
    fi
slouken@143
   366
fi
slouken@168
   367
if test x$enable_png = xyes -a x$have_png_hdr = xyes -a x$have_png_lib = xyes; then
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   368
    CFLAGS="$LIBPNG_CFLAGS $CFLAGS"
slouken@143
   369
    if test x$enable_png_shared = xyes && test x$png_lib != x; then
slouken@143
   370
        echo "-- dynamic libpng -> $png_lib"
slouken@143
   371
        AC_DEFINE_UNQUOTED(LOAD_PNG_DYNAMIC, "$png_lib")
slouken@143
   372
    else
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   373
        IMG_LIBS="$LIBPNG_LIBS $IMG_LIBS"
slouken@143
   374
    fi
slouken@143
   375
fi
slouken@143
   376
slouken@137
   377
LIBS="$saved_LIBS"
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   378
slouken@168
   379
AC_SUBST([WINDRES])
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   380
AC_SUBST([IMG_LIBS])
slouken@0
   381
slouken@279
   382
OBJCFLAGS=$CFLAGS
slouken@279
   383
slouken@0
   384
# Finally create all the generated files
slouken@0
   385
AC_OUTPUT([
slouken@0
   386
Makefile
slouken@321
   387
SDL2_image.spec
slouken@321
   388
SDL2_image.pc
slouken@0
   389
])