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Date: Fri, 17 Feb 2023 15:18:24 +0000
From: i.nixman@autistici.org
To: Jonathan Wakely <jwakely.gcc@gmail.com>
Cc: Gcc Help <gcc-help@gcc.gnu.org>
Subject: Re: Extra import symbol in debug build
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On 2023-02-17 14:59, i.nixman--- via Gcc-help wrote:
> On 2023-02-17 12:06, Jonathan Wakely wrote:
> 
>> 
>> That suggests either you built it wrong, or that library is from an 
>> older
>> GCC, not the one you're compiling with.
> 
> thank you Jonathan!
> 
> will check this now.
> 
> 
> I have one more question.
> 
> just now I rebuild the executable using `-static-libstdc++`, and I can
> confirm I can see that option in the linker cmdline, but the
> executable still depends on libstdc++.so.
> how can this be?

and yes, now it looks like WEAK symbol:

   3515: 0000000000d80940     8 FUNC    WEAK   DEFAULT   13 
_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv
200740: 0000000000d80940     8 FUNC    WEAK   DEFAULT   13 
_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv