running gdb cdk winnt

[Ginger Booth]

hi, guys,
        I'm trying to run (only) gdb, to check out a problem that is
not responding at all well to printf trackdown....  But I can't figure
out how to get gdb to run.  I know it's been on the list, but haven't
been able to tease out the how-to from the details. Tried:

1. Get Cygwin32 window.  Do nothing else before saying "gdb". It runs.
OK.  Try "gdb z:/gecko/source/gecko.exe".  Gdb runs, but gecko won't.
Looks like it's missing gobs of swarm stuff because the swarm.exe
hasn't exe'd.

2. So same window, 
        cd /swarm
        ./swarm.exe
        gdb z:/gecko/source/gecko.exe
        Unable to find main.tcl in \share\gdbtcl.
        Please set GDBTK_LIBRARY to a path that includes....
According to the "env" command, executing "swarm.exe" changed the
GDBTK_LIBRARY from C:\Cygnus\B19\share\gdbtcl to \share\gdbtcl.  Where
it is not found.  

I searched on the string GDBTK_LIBRARY in the /Swarm tree and found
nothing.

(How do you set those environment variables?  setenv doesn't....)

3. I tried similar with a DOS window and got nowhere.

thanks,
        Ginger.

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