Libpng 1.4.0beta6 - June 2, 2006

This is not intended to be a public release.  It will be replaced
within a few weeks by a public version or by another test version.

Files available for download:

Source files with LF line endings (for Unix/Linux) and with a
"configure" script

   1.4.0beta6.tar.gz
   1.4.0beta6.tar.bz2

Source files with LF line endings (for Unix/Linux) without the
"configure" script

   1.4.0beta6-no-config.tar.gz
   1.4.0beta6-no-config.tar.bz2

Source files with CRLF line endings (for Windows), without the
"configure" script

   lp140b06.zip
   lp140b06.tar.bz2

Project files

   1.4.0beta6-project-netware.zip
   1.4.0beta6-project-wince.zip

Other information:

   1.4.0beta6-README.txt
   1.4.0beta6-KNOWNBUGS.txt
   1.4.0beta6-LICENSE.txt
   1.4.0beta6-Y2K-compliance.txt

Changes since the last public release (1.2.9):

version 1.2.10beta1 [April 15, 2006]
  Renamed "config.h" to "png_conf.h" and revised Makefile.am to add
    -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h
    to include png_conf.h only when PNG_BUILDING_LIBPNG is defined.

version 1.2.10beta2 [April 15, 2006]
  Manually updated Makefile.in and configure.  Changed png_conf.h.in
    back to config.h.

version 1.2.10beta3 [April 15, 2006]
  Change png_conf.h back to config.h in pngconf.h.

version 1.2.10beta4 [April 16, 2006]
  Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*.

version 1.2.10beta5 [April 16, 2006]
  Added a configure check for compiling assembler code in pnggccrd.c

version 1.2.10beta6 [April 17, 2006]
  Revised the configure check for pnggccrd.c
  Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@
  Added @LIBPNG_DEFINES@ to arguments when building libpng.sym

version 1.2.10beta7 [April 18, 2006]
  Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles.

version 1.2.10rc1 [April 19, 2006]
  Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD
  Fixed "LN_FS" typo in makefile.sco and makefile.solaris.

version 1.2.10rc2 [April 19, 2006]
  Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE
    in configure.ac
  Made the configure warning about versioned symbols less arrogant.

version 1.2.10rc3 [April 20, 2006]
  Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
    writing an embedded PNG without the 8-byte signature.

version 1.4.0beta1 [April 20, 2006]
  Enabled iTXt support (changes png_struct, thus requires so-number change).
  Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED
  Eliminated PNG_1_0_X and PNG_1_2_X macros.
  Removed deprecated functions png_read_init, png_write_init, png_info_init,
    png_permit_empty_plte, png_set_gray_1_2_4_to_8, and removed the
    deprecated macro PNG_MAX_UINT.
  Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h
  Removed many WIN32_WCE #ifdefs (Cosmin).
  Reduced dependency on C-runtime library when on Windows (Simon-Pierre)
  Replaced sprintf() with png_sprintf() (Simon-Pierre)

version 1.4.0beta2 [April 20, 2006]
  Revised makefiles to avoid making links to libpng.so.*
  Moved some leftover MMX-related defines from pngconf.h to pngintrn.h
  Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def
  Updated scripts/pngw32.def to comment out MMX functions.

version 1.4.0beta3 [May 10, 2006]
  Updated scripts/pngw32.def to comment out MMX functions.
  Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros.
  Scripts/libpng.pc.in contained "configure" style version info and would
    not work with makefiles.
  Revised pngconf.h and added pngconf.h.in so makefiles and configure can
    pass defines to libpng and applications.

version 1.4.0beta4 [May 11, 2006]
  Revised configure.ac, Makefile.am, and many of the makefiles to write
    their defines in pngconf.h.

version 1.4.0beta5 [June 2, 2006]
  Added a missing semicolon in Makefile.am and Makefile.in
  Deleted extraneous square brackets from configure.ac

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Glenn R-P