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Re: [Tinycc-devel] Potential bug - Xt: Unresolved inheritance operation


From: Mid Favila
Subject: Re: [Tinycc-devel] Potential bug - Xt: Unresolved inheritance operation
Date: Mon, 3 Oct 2022 11:46:08 -0400 (AEST)

Hello again,

Wanted to add that when Motif (or, at the least, LessTif) programs are built using tcc, the same problem occurs. Is there anyone else who can duplicate these findings? Are there any steps I can take to provide useful information?

On Sun, 4 Sep 2022, Mid Favila wrote:

Date: Sun, 4 Sep 2022 15:42:42 -0400 (AEST)
From: Mid Favila <midfavila@SDF.ORG>
Reply-To: tinycc-devel@nongnu.org
To: tinycc-devel@nongnu.org
Subject: [Tinycc-devel] Potential bug - Xt: Unresolved inheritance operation

Hello,

Apologies in advance if I've got the wrong list, please point me elsewhere if I do.

I'm using TCC snapshot 2acf65f7e60391c3b4c42fce05e58b05a3511a39, musl 1.2.2,
and TinyX 1.2.0. All of the standard X11 libraries are up to date (libX11, Xt,
etc).

With that out of the way, the error is this; when building programs based on
the Athena widgets, some specimens (notably XMag and XMan, but others as well) exit with "Error: Unresolved inheritance operation". XMan does so when attempting to open the main window; XMag, after selection of a region to magnify.

I've tested with three different implementations of Athena and three different
compilers, with both TinyX and X.Org servers after resetting toolchain flags:

   -neXtaw
   -Xaw
   -XawM
   -cproc
   -gcc
   -tcc

In all cases involving tcc, the error occurs. I ran the programs in question
through GDB and strace, but neither provided any information I could understand.

Let me know if there's any additional information or help I can provide, should this issue be deemed worthy of further investigation. I'd have looked more into it myself, but my knowledge of C is spotty, and of compilers it's non-existent.

Thanks,
-MF

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