gif2png compiled with GCC 2.7.2 and the latest libpng and libz versions.
Included are versions for 68000, 68020+ and 68040 systems using
ixemul.library V43.1 (not included) as well as full source code and modified
makefiles.

Notes:
1. I didn't test it a lot, especially the 68000 and 68020 versions.
   The 68040 version is in more or less constant use without any
   problems whatsoever, though. I also don't know how much of a
   difference regarding performance it makes which version is used.
   If there are any problems, it would probably be wiser to contact
   the original authors of the specific parts. But I'd be willing to
   help as good as I can if my time permits (not very likely at the
   moment, though).

2. Since ixemul.library V43.1 is needed, I should mention that you
   can obtain it from Aminet (dev/gcc) if you havenät installed it
   already.

3. Oh, and gif2png is, of course, a program to convert picture files
   from GIF to PNG format. You knew that, didn't you.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  675    1179  57.3% -lh5- 1dd5 Jun 19  1996 gif2png-0.6.readme
[generic]                57079  116732  48.9% -lh5- 23ee Jun 19  1996 gif2png-0.6/bin/gif2png.000
[generic]                55189  108432  50.9% -lh5- 5ace Jun 19  1996 gif2png-0.6/bin/gif2png.020
[generic]                54248  106900  50.7% -lh5- 5d46 Jun 19  1996 gif2png-0.6/bin/gif2png.040
[generic]                  625    1417  44.1% -lh5- 6330 Jun 19  1996 gif2png-0.6/compiling.readme
[generic]                 1052    3785  27.8% -lh5- e0ba Nov  2  1995 gif2png-0.6/src/437_l1.c
[generic]                  948    1827  51.9% -lh5- 0dd7 Nov  3  1995 gif2png-0.6/src/COMPILING
[generic]                  739    1373  53.8% -lh5- 4cee Nov  2  1995 gif2png-0.6/src/djgpp.txt
[generic]                 5495   16982  32.4% -lh5- 7f27 Nov  3  1995 gif2png-0.6/src/gif2png.c
[generic]                 1368    3105  44.1% -lh5- 089d Nov  3  1995 gif2png-0.6/src/gif2png.h
[generic]                 6214   19709  31.5% -lh5- 8118 Nov  3  1995 gif2png-0.6/src/gifread.c
[generic]                 6570   16486  39.9% -lh5- a0c6 Jan 26  1996 gif2png-0.6/src/libpng-0.88/ansi2knr.c
[generic]                   75     122  61.5% -lh5- 8f52 Jan 26  1996 gif2png-0.6/src/libpng-0.88/build.bat
[generic]                  384    1076  35.7% -lh5- 8dcc Jan 26  1996 gif2png-0.6/src/libpng-0.88/descrip.mms
[generic]                 4846   15337  31.6% -lh5- a965 Jan 26  1996 gif2png-0.6/src/libpng-0.88/example.c
[generic]                17583   50708  34.7% -lh5- e9bc Jan 26  1996 gif2png-0.6/src/libpng-0.88/libpng.txt
[generic]                  549    1379  39.8% -lh5- a256 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile
[generic]                  520     972  53.5% -lh5- 2f9f Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.ama
[generic]                  429     887  48.4% -lh5- cac1 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.atr
[generic]                 1177    2804  42.0% -lh5- c204 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.bor
[generic]                  696    1912  36.4% -lh5- 522f Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.elf
[generic]                  492    1136  43.3% -lh5- e76c Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.gcc
[generic]                  500    1147  43.6% -lh5- 99db Jun 19  1996 gif2png-0.6/src/libpng-0.88/makefile.gcc.000
[generic]                  500    1147  43.6% -lh5- 3168 Jun 19  1996 gif2png-0.6/src/libpng-0.88/makefile.gcc.020
[generic]                  500    1147  43.6% -lh5- 88be Jun 19  1996 gif2png-0.6/src/libpng-0.88/makefile.gcc.040
[generic]                  661    1656  39.9% -lh5- 95cf Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.knr
[generic]                  575    1417  40.6% -lh5- 7653 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.mip
[generic]                  615    1963  31.3% -lh5- e2a3 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.msc
[generic]                  549    1379  39.8% -lh5- a256 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.std
[generic]                  442    1609  27.5% -lh5- ef42 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makefile.tc
[generic]                 1148    3604  31.9% -lh5- da83 Jan 26  1996 gif2png-0.6/src/libpng-0.88/makevms.com
[generic]                 2342    6521  35.9% -lh5- db56 Jan 26  1996 gif2png-0.6/src/libpng-0.88/png.c
[generic]                12415   51844  23.9% -lh5- 6009 Jan 26  1996 gif2png-0.6/src/libpng-0.88/png.h
[generic]                 1068    2560  41.7% -lh5- 03c7 Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngchang.txt
[generic]                 4372   12062  36.2% -lh5- ceeb Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngconf.h
[generic]                 1283    3517  36.5% -lh5- 0837 Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngerror.c
[generic]                 2789   10308  27.1% -lh5- 63cb Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngio.c
[generic]                 2038    7852  26.0% -lh5- beba Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngmem.c
[generic]                 5320   35557  15.0% -lh5- c98c Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngpread.c
[generic]                 1404    5829  24.1% -lh5- c400 Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngrcb.c
[generic]                 4439   22321  19.9% -lh5- 2bf1 Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngread.c
[generic]                12501   91958  13.6% -lh5- 9829 Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngrtran.c
[generic]                 6376   34731  18.4% -lh5- 58e4 Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngrutil.c
[generic]                 1363    4369  31.2% -lh5- 603d Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngtest.c
[generic]                 7147    7147 100.0% -lh0- c81b Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngtest.png
[generic]                  387     675  57.3% -lh5- e09a Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngtodo.txt
[generic]                 1177    5073  23.2% -lh5- 423c Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngtrans.c
[generic]                 4057   16460  24.6% -lh5- c7ff Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngwrite.c
[generic]                 1986    9483  20.9% -lh5- 8f67 Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngwtran.c
[generic]                 6976   32910  21.2% -lh5- ff5f Jan 26  1996 gif2png-0.6/src/libpng-0.88/pngwutil.c
[generic]                 1854    4019  46.1% -lh5- d3bd Jan 26  1996 gif2png-0.6/src/libpng-0.88/readme.txt
[generic]                  406     817  49.7% -lh5- 1fee Nov  3  1995 gif2png-0.6/src/Makefile
[generic]                  350     679  51.5% -lh5- 68c7 Nov  3  1995 gif2png-0.6/src/Makefile.bcc
[generic]                  342     732  46.7% -lh5- 5ebc Jun 19  1996 gif2png-0.6/src/Makefile.gcc.000
[generic]                  342     732  46.7% -lh5- 4b21 Jun 19  1996 gif2png-0.6/src/Makefile.gcc.020
[generic]                  340     732  46.4% -lh5- 7586 Jun 19  1996 gif2png-0.6/src/Makefile.gcc.040
[generic]                 1395    4511  30.9% -lh5- e6d2 Nov  3  1995 gif2png-0.6/src/memory.c
[generic]                 2297    5183  44.3% -lh5- 4451 Nov  3  1995 gif2png-0.6/src/README
[generic]                  255     420  60.7% -lh5- f8f1 Nov  2  1995 gif2png-0.6/src/version.c
[generic]                  329     527  62.4% -lh5- c8b0 Nov  3  1995 gif2png-0.6/src/WhatsNew
[generic]                  607    1278  47.5% -lh5- ea45 May 22  1996 gif2png-0.6/src/zlib-1.0.2/adler32.c
[generic]                 2371    5470  43.3% -lh5- 2498 May 23  1996 gif2png-0.6/src/zlib-1.0.2/algorithm.doc
[generic]                 4276    9886  43.3% -lh5- 8619 May 23  1996 gif2png-0.6/src/zlib-1.0.2/ChangeLog
[generic]                  812    1840  44.1% -lh5- bb61 May 23  1996 gif2png-0.6/src/zlib-1.0.2/compress.c
[generic]                 1192    2838  42.0% -lh5- f8d7 May 21  1996 gif2png-0.6/src/zlib-1.0.2/configure
[generic]                 3190    6971  45.8% -lh5- 0cd1 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/crc32.c
[generic]                12243   42868  28.6% -lh5- 30a3 May 22  1996 gif2png-0.6/src/zlib-1.0.2/deflate.c
[generic]                 3867   10330  37.4% -lh5- 8881 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/deflate.h
[generic]                  547    1548  35.3% -lh5- 00ef Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/descrip.mms
[generic]                 2786   14567  19.1% -lh5- 5f15 May 23  1996 gif2png-0.6/src/zlib-1.0.2/example.c
[generic]                 4538   15580  29.1% -lh5- 6af9 May 22  1996 gif2png-0.6/src/zlib-1.0.2/gzio.c
[generic]                  501    1102  45.5% -lh5- 6f8d May 23  1996 gif2png-0.6/src/zlib-1.0.2/INDEX
[generic]                 4024   12609  31.9% -lh5- 616c May 21  1996 gif2png-0.6/src/zlib-1.0.2/infblock.c
[generic]                  462    1199  38.5% -lh5- cf15 May 21  1996 gif2png-0.6/src/zlib-1.0.2/infblock.h
[generic]                 2230    7475  29.8% -lh5- 5a31 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/infcodes.c
[generic]                  349     737  47.4% -lh5- d7f5 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/infcodes.h
[generic]                 1823    5607  32.5% -lh5- 27a2 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/inffast.c
[generic]                  287     488  58.8% -lh5- 41c7 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/inffast.h
[generic]                 2383    8777  27.2% -lh5- c969 May 21  1996 gif2png-0.6/src/zlib-1.0.2/inflate.c
[generic]                 5441   16248  33.5% -lh5- c40b May 23  1996 gif2png-0.6/src/zlib-1.0.2/inftrees.c
[generic]                  803    2392  33.6% -lh5- 5581 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/inftrees.h
[generic]                  811    1999  40.6% -lh5- dcbf May 22  1996 gif2png-0.6/src/zlib-1.0.2/infutil.c
[generic]                 1540    3696  41.7% -lh5- 207a May 21  1996 gif2png-0.6/src/zlib-1.0.2/infutil.h
[generic]                 1209    3801  31.8% -lh5- 33f7 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/Make_vms.com
[generic]                 1453    3786  38.4% -lh5- b77f May 23  1996 gif2png-0.6/src/zlib-1.0.2/Makefile
[generic]                  913    2780  32.8% -lh5- 5415 Sep  7  1995 gif2png-0.6/src/zlib-1.0.2/Makefile.b32
[generic]                  940    2873  32.7% -lh5- b24f Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.bor
[generic]                 1259    2594  48.5% -lh5- b50f May 23  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.dj2
[generic]                 1466    3804  38.5% -lh5- 9d13 Jun 19  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.gcc.000
[generic]                 1466    3804  38.5% -lh5- 7061 Jun 19  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.gcc.020
[generic]                 1466    3804  38.5% -lh5- 07f4 Jun 19  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.gcc.040
[generic]                 1453    3786  38.4% -lh5- b77f May 23  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.in
[generic]                  862    2652  32.5% -lh5- a327 Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.msc
[generic]                  739    1817  40.7% -lh5- b438 May 21  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.sas
[generic]                  903    2852  31.7% -lh5- ac0d Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/Makefile.tc
[generic]                  898    2727  32.9% -lh5- ee34 Sep  6  1995 gif2png-0.6/src/zlib-1.0.2/Makefile.wat
[generic]                 1859    5721  32.5% -lh5- 8e79 May 22  1996 gif2png-0.6/src/zlib-1.0.2/minigzip.c
[generic]                 2200    4609  47.7% -lh5- 2454 May 23  1996 gif2png-0.6/src/zlib-1.0.2/README
[generic]                12154   41998  28.9% -lh5- 174a May 22  1996 gif2png-0.6/src/zlib-1.0.2/trees.c
[generic]                  862    1985  43.4% -lh5- 22ea Jan 30  1996 gif2png-0.6/src/zlib-1.0.2/uncompr.c
[generic]                 1941    5257  36.9% -lh5- 0339 May 23  1996 gif2png-0.6/src/zlib-1.0.2/zconf.h
[generic]                  307     560  54.8% -lh5- de20 May 23  1996 gif2png-0.6/src/zlib-1.0.2/zlib.def
[generic]                10683   36287  29.4% -lh5- 195d May 23  1996 gif2png-0.6/src/zlib-1.0.2/zlib.h
[generic]                  492     879  56.0% -lh5- bce2 May 23  1996 gif2png-0.6/src/zlib-1.0.2/zlib.rc
[generic]                 2010    4800  41.9% -lh5- 5b91 May 23  1996 gif2png-0.6/src/zlib-1.0.2/zutil.c
[generic]                 1932    4843  39.9% -lh5- 1529 May 22  1996 gif2png-0.6/src/zlib-1.0.2/zutil.h
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total       106 files  416343 1192382  34.9%            Jun 23  1996