Libpng 1.0.9 - January 31, 2001This is a public release of libpng, intended for use in production codes.Changes since the last public release (1.0.8):  Fixed typo in scripts/makefile.hpux  Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)  Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)  Changed "cdrom.com" in documentation to "libpng.org"  Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).  Changed type of "params" from voidp to png_voidp in png_read|write_png().  Added MNG_EXTENSIONS_SUPPORTED macro and support for some proposed MNG     features, for testing purposes.  Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.  Revised the 3 instances of WRITEFILE in pngtest.c.  Updated png.rc in dll/msvc project  Revised makefile.dec to define and use LIBPATH and INCPATH  Increased size of global png_libpng_ver[] array from 12 to 18 chars.  Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.  Removed duplicate png_crc_finish() from png_handle_bKGD() function.  Added a warning when application calls png_read_update_info() multiple times.  Revised makefile.cygwin  Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.  Replaced png_set_empty_plte_permitted() with png_permit_mng_features().  Relocated "msvc" and "wince" project subdirectories into "projects"    subdirectory and added projects/borland project subdirectory.  Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.  Add error message in png_set_compression_buffer_size() when malloc fails.  Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.  Removed the png_flush() in pngwrite.c that crashes some applications    that don't set png_output_flush_fn.  Added makefile.macosx and makefile.aix to scripts directory.  Change png_chunk_warning to png_warning in png_check_keyword().  Increased the first part of msg buffer from 16 to 18 in png_chunk_error().  Added support for filter method 64 (for PNG datastreams embedded in MNG)  Revised png_set_filter() to accept filter method 64 when appropriate.  Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to    help prevent applications from using MNG features in PNG datastreams.  Revised libpng.3/libpng.txt.  Changed "filter type" to "filter method".  Fixed error handling of unknown compression type in png_decompress_chunk().  In pngconf.h, define __cdecl when _MSC_VER is defined.  Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.  Revised memory management in png_set_hIST and png_handle_hIST in a backward    compatible manner.  PLTE and tRNS were revised similarly.  Revised the iCCP chunk reader to ignore trailing garbage.  Moved pngasmrd.h into pngconf.h.  Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.  Added png_set_invalid to wince and msvc project module definition files.  Fixed bug with progressive reading of narrow interlaced images in pngpread.c  Do not typedef png_FILE_io in pngconf.h when PNG_NO_STDIO is defined.  Updated makefile.sgi to make shared library.  Added check of cygwin's ALL_STATIC in pngconf.h  Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.Send comments/corrections/commendations topng-implement@ccrc.wustl.edu or to randeg@alum.rpi.eduGlenn R-P