Re: libc error on older Linux

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Obvious question was Debian 11,
version 'GLIBC_2.34' could be compiled from source or installed via a
backports repo for debian 11, did OP try that?



On Wed, Jun 3, 2026 at 7:52=E2=80=AFAM Rainer Stratmann via fpc-pascal <
[email protected]> wrote:

> > I assume that you don't use this deprecated unit libc, do you? However,
> > AFAIK, Lazarus adds a couple of units like cwstrings, cthreads, etc., t=
o
> > applications automatically, and these imply use of libc.so even without
> > using unit libc. Unit cwstrings may be relevant for working with
> > UnicodeStrings - does your application use UnicodeStrings / WideStrings=
?
> > If not, you might be able to remove that dependency. If you use them,
> > you might still try using unit fpwidestring instead.
> >
> > Tomas
>
> By now unit libc I can not find on the fly.
>
> Units cwstrings, cthreads, UnicodeStrings, etc. I don't use.
>
> Most things I write by myself, except the ssl library and the crypto
> library.
>
> I have to test step by step what causes the issue.
>
> The same huge (more than 100 units, mostly self written) Program in 32 Bi=
t
> works perfect as I mentioned already.
>
>
> _______________________________________________
> fpc-pascal maillist  -  [email protected]
> https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
>

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<div dir=3D"auto">Obvious question was Debian 11, =C2=A0<div style=3D"font-=
size:inherit" dir=3D"auto"><span style=3D"font-size:inherit;font-style:norm=
al;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:non=
e;white-space:normal;word-spacing:1px;text-decoration:none;float:none;displ=
ay:inline!important;background-color:rgba(0,0,0,0);border-color:rgb(0,0,0);=
color:rgb(0,0,0)">version &#39;GLIBC_2.34&#39; could be compiled from sourc=
e or installed via a backports repo for debian 11, did OP try that?</span><=
/div><div style=3D"font-size:inherit" dir=3D"auto"><span style=3D"font-size=
:inherit;font-style:normal;font-weight:400;letter-spacing:normal;text-inden=
t:0px;text-transform:none;white-space:normal;word-spacing:1px;text-decorati=
on:none;float:none;display:inline!important;background-color:rgba(0,0,0,0);=
border-color:rgb(0,0,0);color:rgb(0,0,0)"><br></span></div><div style=3D"fo=
nt-size:inherit" dir=3D"auto"><span style=3D"font-size:inherit;font-style:n=
ormal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:=
none;white-space:normal;word-spacing:1px;text-decoration:none;float:none;di=
splay:inline!important;background-color:rgba(0,0,0,0);border-color:rgb(0,0,=
0);color:rgb(0,0,0)"><br></span></div></div><div><br><div class=3D"gmail_qu=
ote gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Ju=
n 3, 2026 at 7:52=E2=80=AFAM Rainer Stratmann via fpc-pascal &lt;<a href=3D=
"mailto:[email protected]">[email protected]</a=
>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px=
 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">&gt=
; I assume that you don&#39;t use this deprecated unit libc, do you? Howeve=
r,<br>
&gt; AFAIK, Lazarus adds a couple of units like cwstrings, cthreads, etc., =
to<br>
&gt; applications automatically, and these imply use of libc.so even withou=
t<br>
&gt; using unit libc. Unit cwstrings may be relevant for working with<br>
&gt; UnicodeStrings - does your application use UnicodeStrings / WideString=
s?<br>
&gt; If not, you might be able to remove that dependency. If you use them,<=
br>
&gt; you might still try using unit fpwidestring instead.<br>
&gt; <br>
&gt; Tomas<br>
<br>
By now unit libc I can not find on the fly.<br>
<br>
Units cwstrings, cthreads, UnicodeStrings, etc. I don&#39;t use.<br>
<br>
Most things I write by myself, except the ssl library and the crypto librar=
y.<br>
<br>
I have to test step by step what causes the issue.<br>
<br>
The same huge (more than 100 units, mostly self written) Program in 32 Bit =
<br>
works perfect as I mentioned already.<br>
<br>
<br>
_______________________________________________<br>
fpc-pascal maillist=C2=A0 -=C2=A0 <a href=3D"mailto:[email protected]=
scal.org" target=3D"_blank">[email protected]</a><br>
<a href=3D"https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal=
" rel=3D"noreferrer" target=3D"_blank">https://lists.freepascal.org/cgi-bin=
/mailman/listinfo/fpc-pascal</a><br>
</blockquote></div></div>

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_______________________________________________
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