[ANNOUNCEMENT] Updated: libpng-1.0.9-3

Charles Wilson cwilson@ece.gatech.edu
Mon Feb 5 14:20:00 GMT 2001

"Dr. Volker Zell" wrote:
> In case anybody has build the following packages with libpng-1.0.8, I
> found that the new
> version breaks also the following executables (because of missing 
> png_init_io entry point):
[embarrassingly long list of broken programs snipped]

> But recompilation fiexes everything.


All I can say is, XEmacs still worked.  Compiled with the old lib, used
with the new lib.  I guess XEmacs is not such a great test case, after


I'm really, *really* sorry about this. Unfortunately, there's very little
I can do about it.  I considered the following:

  (1) beat the png-developers into submission so that they change the .def
file to match the (semi-random) export table result cygwin's gcc generated
for the unspecified exports back in 1.0.8-3.  However, that won't match
the (semi-random) export table generated back in 1.0.8-3 by msvc for the
unspecified exports in the native build dll.  I give you three guesses
which one they did match, have matched, and will match -- and the first
two guesses don't count.  Nothing against png-develop, but msvc/native is
a much bigger market than cygwin.

  (2) change the dll name, so that the old dll stays "cygpng2.dll" and the
new dll is "cygpng3.dll."  Well, yeah --- possible --- but we just
finished a huge flamefest on the png list about dll naming synchonization
between msvc/native "libpngX.dll" and cygwin "cygpngX.dll".  I really
don't want to upset the apple cart on that issue now.

  (3) go home and hide.  I gave this one serious consideration.


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