[tcltk-perl] Tcl-0.88 latest changes and plans

[Vadim K. <va...@vk...>]

While I commited following changes that should briefly describe things:

    * Tcl.pm: documentation improvements: explain installation techniques;
    explain ::perl::Eval from Tcl side
    bump to 0.88
    create hook to optional reading of Tcl.cfg
    * Changes: start 0.88 history
    * TODO: file removed
    * Manifest: document TODO removal and adding of create-moveable-dist.pl


, still, I feel, a bit more information should be questioned.

I am in process of making into the module some techniques of packaging 
Tcl/Tk for usage from Perl.
While doing this, I will cleanup my own ways, cleanup a bit Tcl::Tk WRT 
this, and also I created some PPM packages for intallation along with 
popular ActiveState's distributions:
 - for usage when ActiveTcl is installed:
     http://www.vkonovalov.ru/tcltk-misc/perl-TclTk-0.87.zip
 - bundled with ActiveTcl (full and stripped a bit)
      http://www.vkonovalov.ru/tcltk-misc/perl58-tcltk8410

Along the way I notice quite many ways how searching of tcl84.dll is 
currently implemented but, to my understanding, some clarification 
should be done.

There are two that bothered me.
 - LIB_RUNTIME_DIR (could be specified in makefile.pl and is '.' by 
default)  How it is used?
IMHO it is very little sence to search "tcl84.dll" relatively - a 
program could be started from everywhere and it is bad choice to depend 
on arbitrary files in arbitrary locations.

 - using environment variable PERL_TCL_DLL. While quite simple and sane, 
how it is supposed to work?
Something like - user invokes "use Tcl;" from perl script, then it 
calculates right tcl84.dll and then providing that path via environment 
variable PERL_TCL_DLL?
Or may be somehow else?
 Is it actually used anywhere?

One of two (or both) be either developed to robust state and documented, 
or removed and forgot :)

As  another note, I am planning to:
 - make Carp.pm be used only when necessary
 - similar thing to overload.pm
When these two items are done, it is quite easy to use Tcl for 
bootstrapping, so entire Perl is started from ZIP archive (and a few 
DLLs from outside archive)

Best best regards,
Vadim.