Thanks for the suggestion Phil (and others). I finally fixed this, but it feels like a bit of a hack. I placed the folder containing the bwidget-1.9.14 scripts for tcl/tk into the directory /usr/local/Cellar/tcl-tk/8.6.10/lib/tcl8.6 as this was already on the tcl auto_path. Wish then starts and Xtherion happily runs. I'm not sure why, but setting auto_path in the tcl shell did not work. I could set it once, and then run a package require BWidget command, and Wish would start up, but then any subsequent commands would fail to find it, and location of the scripts was not located on the auto_path. Perhaps this is something to do with permissions? I'm not sure. I'm running therion 5.4.4 (+543a8b1). Regards, David On Wed, 1 Apr 2020 at 11:00, <therion-request@speleo.sk> wrote:

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Today's Topics:

1. Re: Running Xtherion on Mac OS X Catalina (Philippe Vernant) 2. Re: Running Xtherion on Mac OS X Catalina (Philippe Vernant)

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Message: 1 Date: Tue, 31 Mar 2020 18:27:03 +0200 From: Philippe Vernant <phil.vernant@gmail.com> To: List for Therion users <therion@speleo.sk> Cc: David Eason <david.eason84@googlemail.com> Subject: Re: [Therion] Running Xtherion on Mac OS X Catalina Message-ID: <FA09A4A8-5BEF-4591-AEAE-F09114DB4EC5@gmail.com> Content-Type: text/plain; charset="utf-8"

Hi David,

Did you try to reinstall Therion after updating to Catalina ? I don’t have Catalina, I’m sticking to High Sierra where everything is running fine so far. How do you usually install Therion on a Mac ?

Best, Phil

...

On 30 Mar 2020, at 22:04, David Eason via Therion <therion@speleo.sk> wrote:

Dear Therion mailing list,

I wonder if anyone has had any success building, installing and running Therion on Mac OS X Catalina (OS 10.15.2)? I have successfully built and installed Therion 5.4.4, and Therion and Loch both run fine. Before the upgrade, everything worked OK, but it looks like some things have moved around in this version of OS X, amongst other things breaking. When I try to run Xtherion, Tcl/Tk can't seem to locate BWidget, and the GUI can't run:

Error in startup script: can't find package BWidget while executing "package require BWidget" (file "/usr/local/bin/xtherion" line 12268)

I have tried unpacking the bwidget 1.9.14 scripts to /usr/local/lib thinking that tcl would check there, and then also tried to set auto_path to force tcl to look in there, but it won't seem to start up. There's a pause, and Wish seems to start up, and yet XQuartz actually opens; I have tcl 8.6 installed and can run the tclsh OK.

It's been frustrating me for a while, and I saw this lockdown in the UK as an opportunity to have another look at this. Any pointers or tips would be most welcome.

Regards, David Eason _______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion