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+<HTML>
+<HEAD>
+<TITLE>
+Changes in TIFF v3.4beta024
+</TITLE>
+</HEAD>
+
+<BODY>
+<FONT FACE="Arial, Helvetica, Sans">
+
+<BASEFONT SIZE=4>
+<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
+<BASEFONT SIZE=3>
+
+<UL>
+<HR SIZE=4 WIDTH=65% ALIGN=left>
+<B>Current Version</B>: v3.4beta024<BR>
+<B>Previous Version</B>: <A HREF=v3.4beta018.html>v3.4beta018</A><BR>
+<B>Master FTP Site</B>: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A><BR>
+<HR SIZE=4 WIDTH=65% ALIGN=left>
+</UL>
+
+<P>
+This document describes the changes made to the software between the
+<I>previous</I> and <I>current</I> versions (see above).
+If you don't find something listed here, then it was not done in this
+timeframe, or it was not considered important enough to be mentioned.
+The following information is located here:
+<UL>
+<LI><A HREF="#configure">Changes in the software configuration</A>
+<LI><A HREF="#libtiff">Changes in libtiff</A>
+<LI><A HREF="#tools">Changes in the tools</A>
+<LI><A HREF="#man">Changes in the manual pages</A>
+<LI><A HREF="#contrib">Changes in the contributed software</A>
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
+
+<UL>
+<LI>It is now possible to setup the software to build only the
+   library; configure reconizes this is the intent when the
+   <B>VERSION</B>, <B>tiff.alpha</B>, and <B>tif_version.c</B>
+   files are in the local directory (i.e. ``.'')
+<LI>configure no longer tries to setup HTML materials
+<LI>include file directories needed in building the library are now
+   specified with a <TT>DIRS_LIBINC</TT> config parameter
+<LI>configure no longer checks for alternate compilers if <TT>CC</TT>
+   is set; if the specified compiler is not found or is not appropriate
+   the configuration procedure aborts
+<LI>the <B>port.h</B> file generated by configure is now used only by
+   the library and as such as have been moved to the <B>libtiff</B>
+   directory
+<LI>there is beginning support for building DSO's on systems other than IRIX
+<LI>configure now verifies the JPEG and zlib directory pathnames by
+   checking for well-known include files in these directories
+<LI>configure no longer creates the <B>dist</B> directory needed only
+   on SGI machines (for building SGI binary distributions)
+<LI>a bug was fixed whereby configure would incorrectly set
+    <TT>ENVOPTS</TT> when building the software with gcc under AIX
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
+
+<UL>
+<LI>two new typedefs were added to <B>tiff.h</TT>: <TT>int8</TT>
+    and <TT>uint8</TT> for signed and unsigned 8-bit quantities,
+    respectively; these are currently used only by
+    programs in the <B>tools</B> directory
+<LI>the <TT>BadFaxLines</TT>, <TT>CleanFaxData</TT>, and
+    <TT>ConsecutiveBadFaxLines</B> tags are now supported with
+    Group 4 compression
+<LI>byte order is now correctly identified on 64-bit machines
+<LI>a bug was fixed in the PackBits decoder where input data would
+    appear short when a no-op run was present
+<LI>a bug was fixed in calculations with very wide strips
+<LI><TT>TIFFWriteEncodedStrip</TT> and <TT>TIFFWriteRawStrip</TT>
+    were extended to support dynamically growing the number of
+    strips in an image (must set <TT>ImageLength</TT> prior to
+    making calls though)
+<LI><TT>TIFFDefaultTileSize</TT> now rounds tile width and height
+    up to a multiple of 16 pixels, as required by the TIFF 6.0 specification
+<LI>the file <B>version.h</B> is now built by a new <B>mkversion</B>
+    program; this was done for portability to non-UNIX systems
+<LI>support was added for the Acorn RISC OS (from Peter Greenham)
+<LI>the builtin codec table is now made <TT>const</TT> when compiling
+    under VMS so that <B>libtiff</B> can be built as a shared library
+<LI>support for the PowerPC Mac (from Ruedi Boesch)
+<LI>support for Window NT/Window 95 (from Scott Wagner)
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
+
+<UL>
+<LI>the tools no longer include <B>port.h</B>
+<LI>various portability fixes; mostly to eliminate implicit assumptions
+    about how long <TT>int32</TT> data types are
+<LI>PostScript Level II additions to <TT>tiff2ps</TT> from Bjorn Brox
+<LI><TT>sgi2tiff</TT> now handles RGBA images
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="man"><B><FONT SIZE=+3>C</FONT>HANGES IN THE MANUAL PAGES:</B></A>
+
+<UL>
+<LI>the documentation has been updated to reflect the current state of
+    the software
+<LI>some routines have been moved to different manual pages
+    to group like-routines together
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIBUTED SOFTWARE:</B></A>
+
+<UL>
+<LI>support was added for the Acorn RISC OS (from Peter Greenham)
+<LI>support for Windows NT/Windows 95 contributed for a previous
+    version of this software was sort of incorporated (it's broken
+    right now) (from Scott Wagner)
+</UL>
+
+<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
+
+<HR>
+
+<ADDRESS>
+<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
+Last updated $Date: 1999/08/09 20:21:21 $.
+</ADDRESS>
+
+</BODY>
+</HTML>