Re: Tiger compatibility may only be there for 10.3.9 and Tiger

No, I think it means that we just don't use GCC 4.0 to build any of the 
products.  That way they work on 10.2, 10.3, and 10.4.  I think it is 
time to officially drop 10.1 support, though.  That needs to be 
discussed....

The actual release note is here: 
http://developer.apple.com/ReleaseNotes/DeveloperTools/GCC4.html.  It 
says, "C++ applications compiled with GCC 4.0 will run only on systems 
where libstdc++.dylib is installed. It is installed on all user systems 
that run Mac OS X 10.4, or that run 10.3.9 or later. To target earlier 
systems, use Xcode's SDK feature."  Mozilla.org already builds their 
products against the 10.2.8 SDK, to provide backwards compatibility.  In 
addition, if you are building on a 10.4 system, and you want to retain 
10.2 compatibility, you will need to set the gcc version to 3.3.  That's 
also explained in the release notes.


javier