GNU bug report logs - #63155
slim fails to build

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#63155: closed (slim fails to build)
Date: Sun, 30 Apr 2023 21:17:01 +0000

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Your message dated Sun, 30 Apr 2023 23:16:33 +0200
with message-id <875y9doytq.fsf <at> gnu.org>
and subject line Re: bug#63159: [PATCH 1/2] gnu: slim: Fix build failure with GCC-11
has caused the debbugs.gnu.org bug report #63155,
regarding slim fails to build
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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63155: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63155
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From: Julian Flake <flake <at> uni-koblenz.de>
To: bug-guix <at> gnu.org
Subject: slim fails to build
Date: Fri, 28 Apr 2023 21:23:16 +0200

compilation error is:

/tmp/guix-build-slim-1.3.6.drv-0/slim-1.3.6/panel.cpp: In 
constructor ‘Panel::Panel(Display*, int, Window, Cfg*, const 
string&, Panel::PanelType)’:
/tmp/guix-build-slim-1.3.6.drv-0/slim-1.3.6/panel.cpp:51:27: 
error: ordered comparison of pointer with integer zero (‘GC’ {aka 
‘_XGC*’} and ‘int’)
  51 |                 if (WinGC < 0) {
     |                     ~~~~~~^~~
make[2]: *** [CMakeFiles/libslim.dir/build.make:121: 
CMakeFiles/libslim.dir/panel.cpp.o] Error 1

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Brian Cully <bjc <at> spork.org>
Cc: 63159-done <at> debbugs.gnu.org, 63155-done <at> debbugs.gnu.org
Subject: Re: bug#63159: [PATCH 1/2] gnu: slim: Fix build failure with GCC-11
Date: Sun, 30 Apr 2023 23:16:33 +0200

Hi,

Brian Cully <bjc <at> spork.org> skribis:

> GCC-11 sniffed out a long-standing bug where a pointer was being tested for a
> negative value, which is impossible. Instead, check for NULL, which is how the
> error result is actually returned.
>
> See https://github.com/iwamatsu/slim/issues/14 for details.
>
> * gnu/packages/display-managers.scm (slim) [fix-0-pointer-comparison]: new
> phase

[...]

> Moved to github, according to https://www.berlios.de/software/slim/.
>
> * gnu/packages/display-managers.scm (slim) [home-page]:  update URL.

Applied, thanks!

Ludo’.

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