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From: Alan Grunwald <nospam.nurdglaw@gmail.com>
Newsgroups: comp.lang.tcl
Subject: Re: tcllib1.21 and tcl9.0b3
Date: Sat, 14 Sep 2024 17:46:47 +0100
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On 14/09/2024 16:57, Paul Obermeier wrote:
> Am 14.09.2024 um 01:13 schrieb Alan Grunwald:
>> How compatible is tcllib 1.21 with tcl9.0b3?
>>
>> I've built tcl-9.0b3 and want to see how it plays with my scripts. 
>> (OK, more properly that should be "how my scripts play with tcl 9.0b3.)
>>
>> I'm testing with a script that includes [package require uri].
>>
>> This fails, saying it can't find the package.
>>
>> I've dug around a bit and I see that the pkgIndex.tcl in tcllib-1.21 
>> starts with a fast return if
>>
>> [package vsatisfies [package provide Tcl] 8]
>>
>> returns 0.
>>
>> I've changed that to
>>
>> [package vsatisfies [package provide Tcl] 8 9]
>>
>> and it now gets a couple of lines further down the script where it 
>> encounters
>>
>> if {(0 == [catch {
>>      package vcompare [info patchlevel] [info patchlevel]
>> }]) && (
>>      [package vcompare [info patchlevel] 8.3.1] >= 0
>> )} {return}
>>
>> and returns.
>>
>> I don't understand this line well enough to change it. As far as I can 
>> make out,
>>
>>      package vcompare [info patchlevel] [info patchlevel]
>>
>> will always return 0 and won't throw an exception, so this should 
>> always result in a premature return, before all the
>>
>> package ifneeded
>>
>> commands for the packages withing tcllib are executed.
>>
>> However, that argument applies equally to tcl8.6.14, but the same 
>> pkgIndex.tcl works just fine on my home-built copy of that.
>>
>> It's getting late and I'll have another look tomorrow and see if I can 
>> work out what's happening. In the mean time, I'd very much appreciate 
>> any help you can provide.
> 
> 
> Hi Alan,
> 
> tcllib 1.21 is not Tcl9 ready.
> You should try the current trunk of tcllib.
> Andreas Kupries committed some more Tcl9 related changes just yesterday.
> 
> Also note, that there is a RC0 candidate of Tcl9 
> (https://sourceforge.net/projects/tcl/files/Tcl/9.0.0/)
> 
> Paul
> 
> 
Thanks Paul - I've just spotted a reference to tcllib 2.0 on the wiki; 
see a message in a sibling thread.

I think I'll press on with 9.0b3 and hope to get that going happily just 
before 9.0 hits the streets :-). Where is the tcllib repo?

Alan