Re: libpng versioning problems making RPMS incompatible across Linux's

[Glenn Randers-Pehrson <glennrp home com>]

At 10:29 PM 8/28/00 +0200, Tomas Ogren wrote:
>On 27 August, 2000 - Paul Sheer sent me these 2.5K bytes:
>
>> 
>> 
>> Hi there
>> 
>> libpng.so.2.1.0.6 is not compatible with libpng.so.2.1.0.8
>> it seems.
>> 
>> If I use 2.1.0.6 then my Gnome apps SEGFAULT. If I use
>> 2.1.0.8 then my KDE apps segfault.
>> 
>> Shouldn't version numbering sort out this? Is it a problem
>> with libpng versioning?
>
>Screwup by the libpng maintainers. 1.0.7 introduced an additional item
>in a struct causing binary incompability. But I thought 1.0.8 fixed
>that.. hrm.
>

It was 1.0.6 that was binary incompatible, by mistake.  1.0.7 restored
compatibility with 1.0.3/1.0.5 and added a warning about incompatibility
with 1.0.6.  1.0.8 is compatible with 1.0.7.  People have misinterpreted
the warning to mean that 1.0.7 is the bad guy.

Glenn