Re: [PATCH 1/2] gitk: Initialize msgcat before first use

[Pat Thoyts <patthoyts@users.sourceforge.net>]

Bernt Hansen <bernt@norang.ca> writes:

>The error text generated when your version of Tcl is too old is
>translated with msgcat (mc) before msgcat is initialized.  This
>causes Tcl to abort with:
>
>    Error in startup script: invalid command name "mc"
>
>We now initialize msgcat first before we check the Tcl version.  Msgcat
>is available since Tcl 8.1.
>

This doesn't quite work. [file normalize] was introduced with Tcl 8.4
and when I test this by starting it using Tcl 8.3 I get an error:
 "bad option "normalize": must be atime, attributes, channels..."
from line 11014. It is probably sufficient to just drop the [file
normalize] here. On Windows $argv0 is fully qualified and 
[file dirname] works ok on it. By removing the [file normalize] I get
the expected error dialog when testing with 8.3.

However, on Windows we actually get a better looking result by not
catching the [package require Tcl 8.4] and just letting Tk bring up a
standard message box with the version conflict error message.

Well, actually if show_error just used tk_messageBox it would look
better on Windows.

-- 
Pat Thoyts                            http://www.patthoyts.tk/
PGP fingerprint 2C 6E 98 07 2C 59 C8 97  10 CE 11 E6 04 E0 B9 DD