dnl dnl "$Id: cups-image.m4,v 1.1.1.2 2002/02/10 04:47:54 jlovell Exp $" dnl dnl Image library stuff for the Common UNIX Printing System (CUPS). dnl dnl Copyright 1997-2002 by Easy Software Products, all rights reserved. dnl dnl These coded instructions, statements, and computer programs are the dnl property of Easy Software Products and are protected by Federal dnl copyright law. Distribution and use rights are outlined in the file dnl "LICENSE.txt" which should have been included with this file. If this dnl file is missing or damaged please contact Easy Software Products dnl at: dnl dnl Attn: CUPS Licensing Information dnl Easy Software Products dnl 44141 Airport View Drive, Suite 204 dnl Hollywood, Maryland 20636-3111 USA dnl dnl Voice: (301) 373-9603 dnl EMail: cups-info@cups.org dnl WWW: http://www.cups.org dnl dnl Save the current libraries since we don't want the image libraries dnl included with every program... SAVELIBS="$LIBS" dnl Check for image libraries... LIBJPEG="" LIBPNG="" LIBTIFF="" LIBZ="" AC_SUBST(LIBJPEG) AC_SUBST(LIBPNG) AC_SUBST(LIBTIFF) AC_SUBST(LIBZ) AC_CHECK_HEADER(jpeglib.h, AC_CHECK_LIB(jpeg, jpeg_destroy_decompress, AC_DEFINE(HAVE_LIBJPEG) LIBJPEG="-ljpeg" LIBS="$LIBS -ljpeg")) AC_CHECK_HEADER(zlib.h, AC_CHECK_LIB(z, gzgets, AC_DEFINE(HAVE_LIBZ) LIBZ="-lz" LIBS="$LIBS -lz")) dnl PNG library uses math library functions... AC_CHECK_LIB(m, pow) AC_CHECK_HEADER(png.h, AC_CHECK_LIB(png, png_set_tRNS_to_alpha, AC_DEFINE(HAVE_LIBPNG) LIBPNG="-lpng -lm")) AC_CHECK_HEADER(tiff.h, AC_CHECK_LIB(tiff, TIFFReadScanline, AC_DEFINE(HAVE_LIBTIFF) LIBTIFF="-ltiff")) dnl Restore original LIBS settings... LIBS="$SAVELIBS" AC_CHECK_HEADER(stdlib.h,AC_DEFINE(HAVE_STDLIB_H)) dnl dnl End of "$Id: cups-image.m4,v 1.1.1.2 2002/02/10 04:47:54 jlovell Exp $". dnl