We have a tcl/tk application that currently uses the non threaded wish,
and I would like to upgrade it to use the threaded version,
wish84t.exe.  However when I use the threaded version, it crashes at
startup.  Being that our app doesn't make any threaded commands yet,
I'm beginning to think that the threaded version has issues.

I know that I've built my wish84t.exe correctly because it runs simple
multi-threaded apps.  Therefore, I don't think it's a build or install
problem.

Any suggestions or comments?

Does anybody know if the threaded builds have issues?

Where does it crash? Do you have C extensions in your application that
are not compiled with --enable-threads, or are otherwise not thread
save? Do you try to [puts] something at the time it crashes? What is
the error message, if any?
I'd suggest you to step through the code and find out where the crash
happens and what might be involved with the crash. If you can be more
concrete about that, this would be helpful...

Eckhard

thanks for your info.  yes, it's very possible that we have many
extensions that are not thread-safe.  i guess i was hoping for an easy
transition and that everything would just automatically run in the
current thread.  now i know that's not the case.

our app is windows based, and we use extensions such as:

BLT
BWidget
Img
Tk 8.0
http
printer
registry
scwidgets
stooop 4.1
switched 2.2
tkpiechart 6.3
xml

So if you have a thread-safe exe, all DLLs have to be thread-safe as
well, even if you don't make any threading calls?  Is this a C
requirement?  I'm just trying to get a more general picture of my
problem.

loading the BLT library is the culprit.  here's the command:

load blt24.dll BLT