xref: /aosp_15_r20/external/giflib/ChangeLog (revision 324bb76b8d05e2a05aa88511fff61cf3f9ca5892)

shipper: ignore this.
	It's retained for archival purposes only.  The single point of
truth about changes and the reasons for them is the repository.

2007-11-10 14:50  abadger1999

	* NEWS, configure.ac, lib/Makefile.am, lib/egif_lib.c,
	lib/gif_hash.c: 4.1.6 update.  Errors in including headers could
	lead to build problems on some platforms.

2007-11-10 13:16  abadger1999

	* configure.ac: Bump release version in configure.ac.

2007-11-10 13:15  abadger1999

	* Makefile.am: Remove PATENT_PROBLEMS from build rules as well.

2007-11-10 13:09  abadger1999

	* NEWS, PATENT_PROBLEMS, lib/Makefile.am: Remove PATENT_PROBLEMS as
	  it's no longer covered.  Update NEWS and Makefile.am for the new
	  release.

2007-11-10 10:46  abadger1999

	* configure.ac, util/gif2epsn.c, util/gif2iris.c, util/gif2ps.c,
	  util/gif2rgb.c, util/gif2rle.c, util/gif2x11.c: Find and fix
	  segfaults in the gif2* programs due to referencing the ColorMap
	  beforefinding out if hte GifFile produced a valid colormap or was
	  corrupt.

2007-11-10 09:30  abadger1999

	* lib/dgif_lib.c: Add checks to fail gracefully when corrupted
	  images are submitted that have improper LZ codes.

2007-11-10 09:22  abadger1999

	* lib/: dgif_lib.c, egif_lib.c: Further checks to compile correctly
	  on WIN32.

2007-11-09 20:28  abadger1999

	* util/giftext.c: Fix a SegFault when a GifFile does not store a
	  global colormap.

2007-11-09 20:13  abadger1999

	* util/gif2x11.c: Fix gif2x11 to work with modern, 24 bit displays.

2007-11-09 14:18  abadger1999

	* configure.ac: Check for headers as well as the libraries for rle,
	  X11, and gl_s.

2007-11-09 13:24  abadger1999

	* configure.ac: Merge better fix for finding an unsignd 32 bit
	  integer type.

2007-11-09 13:01  abadger1999

	* configure.ac: Add configure comman line switches to turn off X11,
	  rle, and gl support.

2007-11-09 12:36  abadger1999

	* configure.ac, util/Makefile.am: Fixes to build under cygwin.

2007-11-09 11:49  abadger1999

	* configure.ac: Make GCC check more robust.  Add a needed automake
	  check.

2007-11-09 11:48  abadger1999

	* lib/dgif_lib.c: Fix closing file handles on failure in
	  DGifOpenFileHandle().

2007-11-09 11:33  abadger1999

	* lib/egif_lib.c: Save files in binary mode for WIN32 as well as
	  MSDOS.

2007-11-09 11:25  abadger1999

	* lib/Makefile.ms: * Makefile for building under Visual C++ from
	  Bug #981209.

2005-11-13 20:14  abadger1999

	* configure.ac, lib/Makefile.am, util/Makefile.am: Changes to
	  conditionalize -Wall upon compiling with gcc.

2005-11-06 08:45  abadger1999

	* lib/: gif_hash.c, gif_hash.h: Add inttypes.h to the headers we
	  could include to get a 32-it int type.

2005-11-06 08:34  abadger1999

	* configure.ac: Search for ISO/ANSI definitions of uint32_t in
	  stdint.h _and_ inttypes.h before POSIX u_int32_t in sys/types.h
	  as some systems have sys/types.h without the definition.
	  Eventually we need to code a test that the expected UINT32
	  definition exists in the header we select so order does not
	  matter.

2005-11-06 08:32  abadger1999

	* AUTHORS, README: Modify so that it no longer appears that esr
	  still maintains this package.

= giflib-4.1.4 =

2005-10-09 Toshio Kuratomi <[email protected]> - r94
    * Sync with libungif r93.
    * ChangeLog: Update to r92.
    * NEWS: Update with combined libungif/giflib changes.

2005-10-09 Toshio Kuratomi <[email protected]> - r92
    * lib/gif_lib.h: Change GifPrefixType to unsigned.

2005-10-09 Toshio Kuratomi <[email protected]> - r91
    * ChangeLog: Update to r90.
    * NEWS: Update on GBA and Windows fixes.

2005-10-06 Toshio Kuratomi <[email protected]> - r90
    Changes from Lennie Araki:
    * gba/giftest.mak: Prefix the names of defines for the GBA build with _GBA.
    * lib/dgif_lib.c, lib/gif_lib_private.h, lib/gif_err.c:
      - When Compiling for Game Boy Advance, file functions are not needed so
        exclude DGifOpenFileName(), DGifOpenFileHandle(), DGifSlurp(), and
        PrintGifError().
      - On Game Boy Advance we need to reduce memory usage.  Change values to
        short int where appropriate.
    * lib/gif_lib.h:
      - Handle te GBA changes by defining GifPrefixType and GifWord to int
        unless compiling on GBA.  Then use unsigned short and short
        respectively.
      - Fix a problem with the API on _WIN32.  DrawText conflicts with the
        Windows API.  Call it DrawGifText instead.

2005-09-27 Toshio Kuratomi <[email protected]> - r86
    * Sync with libungif r85.

2005-09-27 Toshio Kuratomi <[email protected]> - r82
    * AUTHORS: Add Daniel Eisenbud.  Obscure email addresses.
    * libungif.spec: Bump to version 4.1.4.
    * configure.ac: Bump to 4.1.4.  No longer check for ranlib.
    * doc/lzgif.txt: Change dos line encoding to UNIX.
    * lib/dgif_lib.c: (eisenbud)
      - Set GifFile's ColorMaps to NULL when we free a colormap object.
      - Detect some cases of corrupted GIFs which were crashing the library.
    * lib/egif_lib.c: Set ColorMaps to NULL when we free a colormap object.
    * lib/gifalloc.c: Set ColorMaps to NULL when we free a colormap object.
    * lib/dev2gif.c: Fix redefinition problem on IRIX.
    * NEWS: Update to 4.1.4
    * util/gifcomb.c: Set a olorMap to NULL.

2004-07-11 Toshio Kuratomi <[email protected]> - r79
    * gif2iris.c: Fixes from Georg Schwarz <geos[AT]epost.de>.
      - stdlib.h is available and needs to be included on IRIX.
      - ColorMapSize was being set from non-existent variables.

2004-05-29 Toshio Kuratomi <[email protected]> - r76
    * Sync with libungif-4.1.3.

2004-05-29 Toshio Kuratomi <[email protected]> - r74
    * ChangeLog, prop=lastlog: Sync with the subversion logs.

2004-05-29 Toshio Kuratomi <[email protected]> - r73
    * test-unx: Add a test of extension code.
    * lib/egif_lib.c: Remove a debugging statement

2004-05-29 Toshio Kuratomi <[email protected]> - r72
    * Makefile.am, doc/Makefile.am, pic/Makefile.am: Change wildcarded entries
      into explicit filenames so make distcheck will succeed.

2004-05-29 Toshio Kuratomi <[email protected]> - r71
    * ChangeLog, prop=lastlog: Sync the ChangeLog for the release.

2004-05-29 Toshio Kuratomi <[email protected]> - r70
    * AUTHORS: Add Lennie Araki to the list of contributers.
    * windows: The windows subdirectory and all files under it are contributions
      from Lennie Araki to provide a nice interface on MS Windows.
    * README: Redundancy fix.
    * doc/gif_lib.html: Add EGifPutExtension{First,Next,Last} to the documentation
      so people know they should use it instead of EGifPutExtension.
    * Makefile.am: Mark the windows files to be distributed.
    * NEWS: Complete the NEWS item for 4.1.3.

2004-05-29 Toshio Kuratomi <[email protected]> - r69
    * libungif.spec: Some updates from the latest RedHat spec.
    * configure.ac: Bump version to 4.1.3.
    * lib/gifalloc.c: Add to my comments on ESR's note about Extension blocks.
    * lib/egif_lib.c:
      - EGifPutComment(): reimplemented using EGifPutExtensionFirst, Next, and
        Last so that it won't break on unusually long comments.
      - EGifPutExtension{First,Next,Last}: Changed fwrites to WRITE so any
        user defined write function will get called properly.
      - EGifPutExtensionTerminate: if the Extension block is empty (Zero length)
        then don't attempt to output a last extension block, just output the
        block terminator.
      - EGifPutExtension: Comment that this function does not work when there
        are multiple subblocks in an Extension block.  Use the functions
        EGifPutExtension{First,Next,Last} instead.
      - EGifSpew: Reimplement to use EGifPutExtension{First,Next,Last} so we
        don't output broken GIFs when there are multiple sub-blocks on an
        extension.
    * lib/Makefile.am: Bump version to 4.1.3.
    * NEWS: Begin writing an entry for 4.1.3.
    * util/icon2gif.c: Few casting fixes to make gcc -Wall happy.
    * util/gif2ps.c: printf format string corrections.

2004-05-26 Toshio Kuratomi <[email protected]> - r67
    * Clean up some typos.

2004-05-25 Toshio Kuratomi <[email protected]> - r66
    * Sync with libungif-4.1.2.

2004-03-03 Toshio Kuratomi <[email protected]> - r64
    Last minute updates to the release notes in various files.

2004-03-03 Toshio Kuratomi <[email protected]> - r63
    * Set property lastlog to remind me when I last synced the ChangeLog

2004-03-03 Toshio Kuratomi <[email protected]> - r62
    * ChangeLog: Update

2004-03-03 Toshio Kuratomi <[email protected]> - r61
    * configure.ac: Bump version to 4.1.2

2004-02-22 Toshio Kuratomi <[email protected]> - r59
    * configure.ac, lib/Makefile.am: Bump version.  Forgot to do this for 4.1.1...

2004-02-22 Toshio Kuratomi <[email protected]> - r58
    * TODO: Take out -Wall as that's all ready now.

2004-02-22 Toshio Kuratomi <[email protected]> - r57
    Merge changes to the code from branch indent-audit r55
    * README: MakeExtension deprecation note.
    * TODO: Bunch of things I need to fix or check that I saw while doing the
      indentation of the code.
    * lib/getarg.h: indent changes
    * lib/dgif_lib.c: indent changes
      - Move stdlib.h out of #ifdef's as it's included on all platforms.
      - Add checks to be sure malloc and MakeMapObject succeed.
    * lib/quantize.c: indent changes
      - Move stdlib.h out of #ifdef's as it's included on all platforms.
      - _GifError already pulled in through gif_lib_private.h.  Remove decl.
      - Make Count in NewColorMapType be unsigned.
      - Separated mallocs from conditionals in a few places.  Easier reading.
    * lib/gifalloc.c: indent changes
      - Added four FIXME's where I think the code might not be doing what we
        want.  Need to do more research to figure out.
      - Add note to MakeExtension that I think it needs to be deprecated.
      - Separated mallocs from conditionals in a few places.  Easier reading.
      - FreeLastSavedImage: New private function to free the last image in a
        GifFile structure.  Used to back out when unable to completely
        allocate a new SavedImage structure.
      - check for NULL values before deallocating in Free* functions and make
        sure all Free* functions set the pointer to NULL after they deallocate
        the memory.
    * lib/egif_lib.c: indent changes
      - EGifPutScreenDesc: If we have no colormap, output a default value for
	its size instead of trying to reference its unallocated BitsPerPixel
	field. (Fixes bug noted in r46)
    * lib/gif_lib.h: indent changes
      - Condense the #else #if VARARGS to #elif VARARGS check.
    * lib/qprintf.c: indent changes
      - Condense the #else #if VARARGS to #elif VARARGS check.
    * lib/dev2gif.c: indent changes
    * lib/getarg.c: indent changes
    * lib/gif_lib_private.h: indent changes
    * lib/gif_font.c: indent changes
    * lib/gif_err.c: indent changes

2004-02-22 Toshio Kuratomi <[email protected]> - r56
    * lib/Makefile.am, util/Makefile.am: Add -Wall to the compilation flags so
      we can keep the code from acquiring too much bad style.

2004-02-20 Toshio Kuratomi <[email protected]> - r46
    * egif_lib.c: Note for a bug fix (Can wait until after indent because
      there's no patch.)
    * gif_lib.h, dev2gif.c: Change int type to explicit long type in
      DumpScreen2Gif.
    * util/gifinto.c: Give the fprintf back its %d format.
      GifFile->ImageCount is used as the Image number.

2004-02-20 Toshio Kuratomi <[email protected]> - r45
    * README: add varargs to the deprecation list

2004-02-20 Toshio Kuratomi <[email protected]> - r44
    * test-unx: Quote the program names.
    * lib/dgif_lib.c:
      - Make sure memory was allocated for the colormap
      - Some reformatting of code but no syntactic changes.
    * lib/gif_lib.h:
      - C++ extern "C" fix
      - Fix typo with EGifOpen
    * lib/qprintf.c, lib/getarg.c: Update the varargs code.  Some users reported
      that not all systems can handle the hybridized varargs parameter lists
      we had.  Need to use old-style declarations instead.

2004-02-20 Toshio Kuratomi <[email protected]> - r43
    * NEWS: Note bugfixes and deprecations
    * README: Deprecation list is now being compiled in this file.
    * TODO: Notes about interlace bug, -Wall status, merging of old bug status

2004-02-19 Toshio Kuratomi <[email protected]> - r42
    * Makefile.am: Disable testing for now because gif2x11 is broken so none
      of the tests _appear_ to complete successfully.

2004-02-19 Toshio Kuratomi <[email protected]> - r38
    Merge -Wall fixes from branches/Wall-audit r29
    * configure.ac:
      - Make the stdarg vs varargs check simpler by relying on
        AC_CHECK_HEADERS() magic.
      - Check for unistd.h
    * dgif_lib.c, gif_lib.h, egif_lib.c, gifalloc.c, quantize.c, dev2gif.c,
      getarg.c, gif_lib_private.h, gif_font.c gif_err.c, gifinto.c, icon2gif.c,
      raw2gif.c, gifcolor.c, gifasm.c, gif2epsn.c, gif2iris.c, gifrotat.c,
      gifovly.c, gif2x11.c, rle2gif.c, gif2rle.c, text2gif.c, gifspnge.c,
      gifclrmp.c, giffiltr.c, giftext.c, gifinfo.c, rgb2gif.c, gif2rgb.c, gif2ps.c
      - Changes to get rid of -Wall compile warnings.
        + Casting of types
        + New header includes for unistd.h and fcntl.h
        + Explicit declaration of many types to unsigned
        + Removed unused variables and functions
        + Removed VersionStr from every library file.  Instead include it via
          gif_lib_private.h
    * gif_lib.h, gif_lib_private.h: Moved the VersionStr into gif_lib_private.h
      and made it a #define instead of a static char *.

2004-02-19 Toshio Kuratomi <[email protected]> - r37
    Deprecation notes

2004-02-19 Toshio Kuratomi <[email protected]> - r36
    Add notes about security things to do and giflib syncing

2004-02-18 Toshio Kuratomi <[email protected]> - r32
  * TODO: Add notes about how to go about syncing Wall-audit and indent changes
    into giflib.  It won't be pretty.
  * svn:ignore: Change the tarball names from libungif to giflib

2004-02-18 Toshio Kuratomi <[email protected]> - r31
  Add config.h include to gif_hash.c

2004-02-17 Toshio Kuratomi <[email protected]> - r30
  Sync up with libungif 4.1.1

2004-02-17 Toshio Kuratomi <[email protected]> - r26
    Updated ChangeLog

2004-02-17 Toshio Kuratomi <[email protected]>
	* Updated libungif.spec to look more like fedora core spec
	* Updated version numbers in all files

2004-02-17 Toshio Kuratomi <[email protected]>
	* Add the libungif*.tar.bz2 distribution tarball to the ignored files
	* configure.ac, lib/getarg.c, lib/getarg.h, lib/gif_lib.h, lib/qprintf.c:
	  Prefer stdarg.h over vararg.h
	* TODO: Add information about functions that will go away in 5.0
	  (In reality, I don't think new software uses libungif, so there may never
	  be a 5.0 release.)
	* lib/gif_lib.h: Change version from 4.0 to 4.1
	* NEWS: add deprecation warning for the qprintf stuff: GifQuietPrint var and
	  GifQprintf function.

2004-02-16 Toshio Kuratomi <[email protected]>
	* util/gif2iris.c, util/gif2rle.c, util/gifinfo.c: Fix problems with fprintf error statements in the utils

2004-02-16 Toshio Kuratomi <[email protected]>
	Add DEVELOPERS file to the distribution.

2004-02-16 Toshio Kuratomi <[email protected]>
	* AUTHORS, libungif.spec, libungif.lsm, README, BUGS, NEWS:
	  Lots of changes to my email address and the website/download.  (libungif is
	  moving to sourceforge.)
	* TODO: Few notes on cleanups that need to happen.  State what needs to be done
	  for 4.1.1 to be released.

2004-02-15 Toshio Kuratomi <[email protected]>
	Changes imported from last cvs checkout
	* TODO: note to check return of malloc everywhere
	* lib/dgif_lib.c, lib/egif_lib.c: Fix some deallocation bugs
	* lib/gifalloc.c: Fix a colormap allocation problem
	* lib/gif_font.c: Fix to drawing text

2004-02-15 Toshio Kuratomi <[email protected]>
	Added libgetarg.a to the ignore list.

2004-02-15 Toshio Kuratomi <[email protected]>
	Changes to the build infrastructure to build under current libtool, automake,
	and libtool.
	* configure.in: renamed to configure.ac
	* acconfig.h: deleted.  Functionality moved into the configure.ac
	* autogen.sh: now runs libtoolize --automake
	* lib/Makefile.am, util/Makefile.am: CFLAGS=>AM_CFLAGS; INCLUDES=>AM_CPPFLAGS
	* configure.ac:
	  - initialization macros for automake and autoconf have changed
	  - removed checks for C++ compiler and Awk
	  - acconfig.h functionality moved here.
	  - add other X11 libraries to the X11_LIB define

2004-02-15 Toshio Kuratomi <[email protected]>
	* Remove INSTALL file as it's autogenerated.\n* Add stamp-h1 to ignored files

2004-02-15 Toshio Kuratomi <[email protected]>
	Additional adds and deletes to make version 4.1.0b1

2004-02-15 Toshio Kuratomi <[email protected]>
	Import of version 4.1.0b1

2004-02-15 Toshio Kuratomi <[email protected]> - r10
  Import giflib 4.1.0

2004-02-15 Toshio Kuratomi <[email protected]> - r9
  Copy the 4.1.0 libungif release to be the base of the 4.1.0 giflib release.

2004-02-15 Toshio Kuratomi <[email protected]> - r7
  Release 4.1.0

2004-02-15 Toshio Kuratomi <[email protected]> - r6
  Import of version 4.1.0

2004-02-15 Toshio Kuratomi <[email protected]> - r5
  Set ignore patterns on the project directories.

2004-02-15 Toshio Kuratomi <[email protected]> - r3
  Remove a Makefile.in that was left in in the first commit.

2004-02-14 Toshio Kuratomi <[email protected]> - r2
  Commit revision 3.1.0 to subversion

2004-02-14 Toshio Kuratomi <[email protected]> - r1
  Initial SVN Repository Layout

2000  6 Feb Toshio Kuratomi <[email protected]>
    * configure.in: Change to using config.h
      - Every .c file: Change to using config.h.
    * configure.in: added check for varargs header.
    * lib/getarg.c: Changed the ifdef USE_VARARGS to ifdef HAVE_VARARGS_H.
      - lib/getarg.h: Ditto.
      - lib/gif_lib.h: Ditto.
      - lib/qprintf.h: Ditto.

2000  6 Feb Toshio Kuratomi <[email protected]>
    * lib/getarg.h: Prepend an underscore to the header file define.
    * lib/gif_lib.h: Ditto
    * lib/gif_lib_private.h: Ditto
    * lib/getarg.c: ifdef'd MyMalloc so it actually won't define if it already
      is.

2000 3  Feb Toshio Kuratomi <[email protected]>
    * A new cvs repository based my private tree from home.  It now goes back
      to giflib-3.0.
    * Updated the cvs repository to make multiple developers possible.
    * Merge all of Michael's patches into the distribution.
    * DEVELOPER: Updated to reflect the new versions of
      autoconf/automake/libtool we're using.
    * libungif.spec: Updated a few things from the latest redhat spec file.

1999 5  Dec Toshio Kuratomi <[email protected]>
        * Update links to the web pages as I have reorganized them somewhat.
        * Add the welcome2.gif to the pic directory and a test that utilizes
          it to test-unx.

1999 17 Nov Toshio Kuratomi <[email protected]>
        * New cvs Repository.  Hopefully I've got everything that was in the
          old one.  This one is available on anonymous cvs.
        * Update to libtool 1.3.3, automake 1.4, and autoconf 2.13

1999 23 May Michael R Brown <[email protected]>
        * Lots of 'const' qualifiers added, thanks Alexis
          Wilke for finding these.

1999 22 Mar Michael R Brown <[email protected]>
        * util/gif2x11.c: Patch by (who?) to fix lots of memory leeks.
        * util/*.c:
          lib/dgif_lib.c:
          Makefile.in:
          Patch by David Kaelbling to compile on IRIX 6.x. Basically fixing
          lots of bad/missing parameter passing to printf, scanf and similar.
        * Added pics/welcome2.gif, from Peter Merz which provokes a bug prior
          to patch 19990224 to do with colour map management.  There is still
          a problem with util/gifspnge processing this image, so it will not
          be added to test-unx yet.

1999 05 Mar Michael R Brown <[email protected]>
        * lib/getarg.c: Lines 107 and 189
          Added ifdef's to use stdarg when available. On dec-alpha the
          default code was causing programs to crash, probably because
          it assumes a stack that grows-up.

1999 24 Feb Michael R Brown <[email protected]>
        * lib/dgif_lib.c: Lines 363 and 367
          Bug reported by Steve Sanders, where &'s where causing the
          memcpy to overwrite the pointers. Fixed by removing the &'s
          so that memcpy overwrote the memory pointed to.

1999 09 Feb Toshio Kuratomi <[email protected]>
        * Release 4.1.0

1999 09 Feb Toshio Kuratomi <[email protected]>
        * Merge libungif changes into the giflib tree:
         - upgrade to libtool 1.2b
         - util/Makefile.am: Minor change to allow compilation outside the
           source_dir.
         - lib/egif_lib.c: FILE_STATE_WRITE, FILE_STATE_SCREEN,
           FILE_STATE_IMAGE, IS_WRITEABLE are now in gif_lib_private.h
         - lib/dgif_lib.c: FILE_STATE_READ and IS_READABLE are now in
           gif_lib_private.h
         - lib/gif_lib_private.h: Above mentioned constants and macros are now
           here.  FILE_STATE_READ is now 0x08 instead of 0x00.
         - configure.in: Update version to 4.1.0
         - lib/Makefile.am: Update libtool version to 5:0:1 (libtool)
         - giflib.spec: Update for version 4.1.0 (Add libungif-4.1
           compatibility stuff and change version.)
         - giflib.lsm: Update for version 4.1.0
         - lib/egif_lib.c: (WRITE)  change from a function to a macro.
         - lib/dgif_lib.c: (DGifOpenFileName) close FileHandle on error.
         - lib/dgif_lib.c: (DGifOpenFileHandle) make sure the FILE stream is
           closed if we hit an error.
         - lib/dev2gif.c, lib/quantize.c, lib/gif_err.c, lib/gif_lib_private.h:
           Reflect Eric's copyright notice rather than Gershon's

1999 14 Jan  Michael R Brown <[email protected]>
        * lib/gif_lib.h: Add OutputFunc type
        * lib/gif_lib.h: Add EGifOpen for user supplied output function
        * lib/egif_lib.c: (EGifOpenFileName) Fixed wasted memory when an
          error occurs in EGifOpenFileHandle
        * lib/egif_lib.c: Add EGifOpen, WRITE, and lots of changes to
          support user supplied output function. Basically changing
          all fwrite's to WRITE, and then all of the knock on effects.

1998 17 Dec Toshio Kuratomi <[email protected]>
        * configure.in: Change references to libungif to giflib.
        * libungif.lsm: Rename to giflib.lsm and change to reflect giflib
          rather than libungif.
        * libungif.spec: Rename to giflib.spec and change to reflect giflib
          rather than libungif.
        * UNCOMPRESSED_GIF: Removed from this branch.
        * PATENT_PROBLEMS: Add file explaining Unisys's patent claims.
        * Makefile.am: Replace libungif with giflib.
        * README: Adapted language to giflib.
        * lib/Makefile.am: Changed references to libungif to libgif.
        * util/Makefile.am: Changed references to libungif to libgif.

1998 17 Dec Toshio Kuratomi <[email protected]>
        * lib/egif_lib.c: Merge LZW stuff into this branch of the library.
          This includes numerous changes to initialize the hash table as well
          as the code forthe encoder.
        * lib/gif_hash.c: Functions needed for the LZW encoder.
        * lib/gif_hash.h: Functions needed for the LZW encoder.
        * lib/Makefile.am: Add gif_hash.c gif_hash.h to the list of sources.

1998 15 Dec Toshio Kuratomi <[email protected]>
        * lib/dgif_lib.c: (DGifSlurp) Fix a Seg Fault when an image contains
          no extension blocks.

1998 14 Dec Toshio Kuratomi <[email protected]>
        * configure.in: Update version to 4.0
        * lib/Makefile.am: Update libtool version to 4:0:0 (libtool)
        * libungif.spec: Update for version 4.0 (not binary compatible with
          giflib, change version.)
        * lib/gif_lib_private.h: (PrivateType) New header for common stuff
          private to the library.  Currently, this is only the Private struct.
        * lib/dgif_lib.c: (PrivateType) Extract the Private struct to
          gif_lib_private.h
        * lib/egif_lib.c: (PrivateType) Extract the Private struct to
          gif_lib_private.h
        * lib/Makefile.am: Add gif_lib_private.h to the list of source files.
        * lib/gif_lib.h: (ExtensionBlock) Add a Function entry to the
          ExtensionBlock record.  Note that this is not entirely correct:
          the GifLib ExtensionBlock structure is actually a data sub-block
          record.  By adding the function entry here, we are pushing the
          ExtensionBlockType in with the DataSubBlock.
          Sometime in the future, we need to change the API to have true
          ExtensionBlocks which have DataSubBlocks belonging to them.
        * lib/gif_lib.h: (ExtensionBlock) Deprecate the use of Function in
          the SavedImage struct.  Use ExtensionBlock's Function instead.
        * lib/egif_lib.c: (EGifSpew) Changes to use the new Function variable.
        * lib/dgif_lib.c: (DGifSlurp) Changes to put data into the new
          Function variable.

1998 3 Dec  Toshio Kuratomi <[email protected]>
        * lib/dgif_lib.c: (DGifSlurp) Three changes:
          - No longer allocate SaveImage in this function.  All allocations
            of SaveImage take place in DGifGetImageDesc.
          - Extension blocks are now associated with the Image Block that is
            read in subsequent to them, not before.  This should now be
            conformant to the gif89a specification.
          - Fix an off-by-one error when copying extension data from structure
            to structure.
        * lib/dgif_lib.c: (DGifGetImageDesc) Change the function to do its own
          allocation of space for the SavedImage structure no matter what.
        * lib/egif_lib.c: (EGifSpew) The function now spits out
          ExtensionBlocks before the associated Image Block to conform with
          the gif89a specification.
        * lib/egif_lib.c: (EGifOpenFileHandle) Move the write of the
          GifVersion (gif87a or gif89a) from this function into
          EGifPutScreenDesc so that it can be controlled by EGifSpew.  Note
          that this is still a hack as the GifVersion write doesn't really
          belong in either of these functions.
        * lib/egif_lib.c: (EGifPutScreenDesc) Moved writing the version
          (gif87a or gif89a) into the file into this function from
          EGifOpenFileHandle.
        * test-unx: Now test the extension code.
        * pic/x-trans.gif: New image with Comments and transparency to test
          the extension code with.

1998 29 Nov Toshio Kuratomi <[email protected]>
        * lib/dgif_lib.c: (DGifSlurp) Fix a few of the minor bugs plaguing
          this function.  At this point, the function should no longer cause
          a Seg Fault.  It is now losing all extension data however.  I know
          how to hack a fix in, but I need to commit these changes first.
        * lib/dgif_lib.c: (DGifGetImageDesc) Fix my bug fix: the colormap is
          now only copied if it exists :-).

1998 10 Nov Toshio Kuratomi <[email protected]>
        * test-unx: Add a test for DGifSlurp and EGifSpew

1998 14 Oct Toshio Kuratomi <[email protected]>
        * lib/dgif_lib.c: (DGifGetImageDesc) Fix a bug where the Colormap for
          the image description and the SaveImage were pointers to the same
          structure, causing a SegV when DGifClosing the file.

1998 9 Oct  Toshio Kuratomi <[email protected]>
        * lib/dgif_lib.c: (DGifSlurp) memory for the extensions was not being
          allocated.  Now I call AddExtensionBlock when I add an extension to
          the structure.  Additionally, fix a memory leak here.
        * configure.in, NEWS, lib/Makefile.am: Update to version 3.1.1
        * ltmain.sh, ltconfig: removed from the cvs repository
        * BUGS: add the BUGS file to list unresolved BUGS.

1998 9 Sep  Toshio Kuratomi <[email protected]>
        * libungif.spec: Fix wrong version in %files and %install section.

1998 8 Sep  Toshio Kuratomi <[email protected]>
        * lib/gif_hash.c, lib/gif_hash.h: Removed these because a hash table
          is not needed to create uncompressed gifs.
        * lib/egif_lib.c: Remove all references to the hash functions.
        * lib/Makefile.am: Remove gif_hash.c gif_hash.h from the source files.
        * libungif.lsm: added this file

1998 7 Sep  Toshio Kuratomi <[email protected]>
        * lib/dgif_lib.c, lib/gif_lib.h: (DGifOpen) Add callback to read gif
          image through user supplied function (Peter Mehlitz).

1998 6 Sep  Toshio Kuratomi <[email protected]>
        * util/*.{gif.rle}: removed files that were left by my testing
          process and shouldn't have been in the distribution.
        * UNCOMPRESSED_GIF: add section on why software that can decode
          LZW compressed gifs (but not write them) is legal.
        * .cvsignore: added .cvsignore files to ignore Makefiles and other
          generated files in my cvs repository.
        * Makefile.am's: Fixes to allow the dist* family of targets to work
          correctly.  Preliminary support for make check as well.
        * configure.in: Update version to 3.1.0
        * lib/Makefile.am: Update libtool version to 4:0:1 libtool)
        * libungif-3.0.spec: Update from Marc Ewing.
        * Add int/pointer Alpha fixes from Dick Porter to many source files.