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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: GDB Problems with new install of GPS 2019 x86 64 Windows
Date: Sun, 22 Dec 2019 11:44:47 +0000
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Date: 2019-12-22T11:44:47+00:00
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William Thomas <billybits1815@gmail.com> writes:

> On Friday, December 20, 2019 at 10:55:15 AM UTC-5, William Thomas wrote:
>> Running Windows 10.
>> When trying to debug a simple Hello World main, I get this (three times).
>> Tried running it as admin, maybe I have to install as admin? Or maybe its a Python GPS command thing?
>> 
>> Any suggestions? 
>> 
>> 
>> C:\GNAT\2019\bin\gdb.exe: warning: Couldn't determine a path for the index cache directory.
>> Traceback (most recent call last):
>>   File "c:\gnat\2019\share\gdb-8.3/python\gdb\__init__.py", line 143, in auto_load_packages
>>     __import__(modname)
>>   File "c:\gnat\2019\share\gdb-8.3/python\gdb\command\frame_filters.py", line 21, in <module>
>>     import copy
>>   File "c:\gnat\2019\share\gdb-8.3\python-2.7.16\lib\copy.py", line 52, in <module>
>>     import weakref
>>   File "c:\gnat\2019\share\gdb-8.3\python-2.7.16\lib\weakref.py", line 14, in <module>
>>     from _weakref import (
>> ImportError: cannot import name _remove_dead_weakref
>
> OK,
>
> So I go into the file weakref.py and I comment out the following:
>
> from _weakref import (
>      getweakrefcount,
>      getweakrefs,
>      ref,
>      proxy,
>      CallableProxyType,
>      ProxyType,
>      ReferenceType) #,
> #     _remove_dead_weakref)
>
> I just removed the "_remove_dead_weakref" (kind of ironic) from the
> python import thingy and now it works. GDB fired up and I can finally
> start to debug my Hello World program.

I wonder whether you have python 3 installed? maybe running 3 with
2.7-related libraries causes trouble? (both 2.7.16 and 3.7.4 execute
that import on its own just fine).

No idea why GNAT CE includes so much gdb-related python; standard gdb
(8.3) such as I run on Mac with FSF GCC 9.1.0 doesn't.