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Date: Sun, 2 Jan 2022 00:01:02 +0100
From: "Juan Manuel Guerrero (juan DOT guerrero AT gmx DOT de) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
To: djgpp AT delorie DOT com
Subject: Re: binutils 2.37 fails PDCurses library make with "ar: invalid
 operation"
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Am Fri, 31 Dec 2021 20:03:57 -0800 (PST)
schrieb "Jamie Bainbridge (jamie DOT bainbridge AT gmail DOT com) [via
djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>:

> Hello,
>
> Compiling the PDCurses-3.9 source with the latest binutils (bnu237b)
> fails to create the library file with:
>
>  ar: curses.a: invalid operation
>
> You can also reproduce the same error easily with the same command
> manually:
>
>  ar rcv curses.a *.o
>
> ar makes a small 8-byte curses.a file but that's obviously not valid.
>
> Trying several previous versions (bnu232b, bnu234b, bnu2351b) with
> the same compiled object files all work fine.
>
> I'm compiling the latest stable PDCurses from upstream:
> https://github.com/wmcbrine/PDCurses/releases/tag/3.9
>
> The only change I've made is to add -DPDC_RGB to CFLAGS and change
> the LIBCURSES variable to "curses.a".
>
> My environment is dosbox-staging. I've set "LFN=n" in djgpp.env as
> DOSBox doesn't have LFN support (at least not this fork of it). There
> are no long filenames involved here anyway.
>
> I hope that's a useful enough error report. Please let me know if I
> can provide any more information.
>
> Jamie


OFYI, after having installed DOSBox I was able to reproduce the bug.
What the maintariners of binutils have changed between bnu2351b and
bnu237b is completely unknown to me.  It seems to be a DOSBox specific
issue and AFIAK DOSBox has never been recommended to be used as DJGPP
development environment.  I will try to investigate this issue when I
have enough time. This will not be quite soon.

Use bnu2351b; AFAIK there are no DJGPP specific changes between
bnu2351b and bnu237b.


Regrads,
Juan M. Guerrero