New tcl8.4.15 is released

[Michael Thomas]

Marcela Maslanova wrote:
> 
>> I'm certainly interested in upgrading to 8.4.15.  I would hope that some
>> of the auto_path patches could be added at the same time (but I won't
>> hold my breath).
>>
>> --Wart
>>
>>   
> If you want to add some patches to auto_path let me know. But changes
> for example /usr/lib
> to /usr/lib64 could break some dependencies. Isn't too late for this
> change?
> 
> Let me know your opinion on auto_path. It should be fixed.

The main change I want to make to auto_path is to add /usr/lib/tcl8.4
(or /usr/lib64/tcl8.4 on x86_64) to the auto_path so that extensions can
be installed in either %_datadir or %_libdir and still be found.  This
won't impact existing extensions because their installation directories
would still be part of auto_path.

When tcl 8.5 is available then we can look at removing some directories
from auto_path (namely /usr/lib and /usr/share) to speed up the initial
startup time for Tcl applications.  But this is a more invasive change
that will require patching almost all of the current Tcl extensions.

For now, adding %{_libdir}/tcl8.4 will be a good intermediate step that
will allow extensions to slowly migrate to the proper tcl-specific
install directories before we remove the generic /usr/share and /usr/lib
 from auto_path.

With your permission I'll update the tcl package in CVS to use this
extra auto_path directory.

--Wart