GNU bug report logs - #58254
29.0.50; Untracked lib/assert.h with Clang 14

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Subject: bug#58254: closed (Re: bug#58254: 29.0.50; Untracked lib/assert.h
 with Clang 14)
Date: Sun, 02 Oct 2022 20:21:02 +0000

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Your bug report

#58254: 29.0.50; Untracked lib/assert.h with Clang 14

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 58254 <at> debbugs.gnu.org.

-- 
58254: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=58254
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Cc: 58254-done <at> debbugs.gnu.org
Subject: Re: bug#58254: 29.0.50; Untracked lib/assert.h with Clang 14
Date: Sun, 2 Oct 2022 13:20:48 -0700

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On 10/2/22 09:10, Basil L. Contovounesios wrote:
> This file is not generated with the default CC=gcc; there is only a
> lib/assert.in.h present.

That's odd. As far as I can see, lib/assert.h is needed only if you need 
to compile lib/filevercmp.c, lib/nanosleep.c, lib/pipe2.c, 
lib/rawmemchr.c, or lib/strtoimax.c, and I don't see why choosing clang 
over gcc would affect whether these files need to be compiled.

I didn't notice the problem partly because I tested on Fedora 36, where 
none of the above files need to be compiled. Anyway, it is indeed a 
glitch on some platforms and I installed the attached patch to fix the 
annoyance. Thanks for reporting it.

[0001-.gitignore-Add-lib-assert.h-Bug-58254.patch (text/x-patch, attachment)]

[Message part 5 (message/rfc822, inline)]

From: "Basil L. Contovounesios" <contovob <at> tcd.ie>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.50; Untracked lib/assert.h with Clang 14
Date: Sun, 02 Oct 2022 19:10:16 +0300

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Severity: minor
Tags: patch

In a fresh Git worktree:

  $ ./autogen.sh all && ./configure CC=clang && make && git status
  [...]
  On branch wt/clang
  Untracked files:
    (use "git add <file>..." to include in what will be committed)
          lib/assert.h

  nothing added to commit but untracked files present (use "git add" to track)

This file is not generated with the default CC=gcc; there is only a
lib/assert.in.h present.

Is this TRT?

[clang.diff (text/x-diff, inline)]

diff --git a/.gitignore b/.gitignore
index eb77b2388f..c10b3b33d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,6 +53,7 @@ src/emacs-module.h
 
 # C-level sources built by 'make'.
 lib/alloca.h
+lib/assert.h
 lib/byteswap.h
 lib/dirent.h
 lib/errno.h

[Message part 8 (text/plain, inline)]

Thanks,

-- 
Basil

$ clang --version
Debian clang version 14.0.6-2
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
$ gcc --version
gcc (Debian 12.2.0-3) 12.2.0

In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.34, cairo version 1.16.0) of 2022-10-02 built on tia
Repository revision: eb02c4d23088ed3b6806f2a8df2922301dbd515c
Repository branch: wt/clang
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Debian GNU/Linux bookworm/sid

Configured using:
 'configure CC=clang'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS WEBP X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB

Important settings:
  value of $LANG: en_IE.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068
epg-config gnus-util text-property-search time-date subr-x mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils rmc iso-transl tooltip eldoc paren electric
uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel
term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu
timer select scroll-bar mouse jit-lock font-lock syntax font-core
term/tty-colors frame minibuffer nadvice seq simple cl-generic
indonesian philippine cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
composite emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs
faces cus-face macroexp files window text-properties overlay sha1 md5
base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind inotify lcms2
dynamic-setting system-font-setting font-render-setting cairo
move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process
emacs)

Memory information:
((conses 16 35925 6375)
 (symbols 48 5108 0)
 (strings 32 13083 1735)
 (string-bytes 1 372518)
 (vectors 16 9246)
 (vector-slots 8 147080 8733)
 (floats 8 21 23)
 (intervals 56 211 0)
 (buffers 1000 10))

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