On Tue, Apr 30, 2024 at 10:24:44 +0100, Jonathan Wakely wrote:
> On 20/11/23 11:22 -0500, Ben Boeckel wrote:
> >---
> > htdocs/gcc-14/changes.html | 11 +++++++++++
> > 1 file changed, 11 insertions(+)
> >
> >diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
> >index 7278f753..b506eeb1 100644
> >--- a/htdocs/gcc-14/changes.html
> >+++ b/htdocs/gcc-14/changes.html
> >@@ -112,6 +112,17 @@ a work-in-progress.</p>
> > </li>
> > </ul>
> > </li>
> >+ <li>C++ module scanning for named modules is now available:
> >+ <ul>
> >+ <li><a href="https://wg21.link/P1689R5";>P1689R5</a>, Format for
> >+ describing dependencies of source files.
> >+ </li>
> >+ <li>The <code>-fdeps-format=</code>, <code>-fdeps-file=</code>, and
> >+ <code>-fdeps=target=</code> flags may be used to generate P1689 output
>
> This should be -fdeps-target= not -fdeps=target=.
Whoops, yep.
> >+ (the <code>p1689r5</code> format is the only available format today).
>
> I wish the option was more descriptive than "p1689r5", which nobody is
> going to remember (but I assume we don't actually need to specify it
> explicitly since it's the only supported format).
All users of the flag should be having it in the build system itself;
hand-coded makefiles can use it, but will need considerable `jq`
gymnastics to turn the output into properly understood make syntax
snippets for their build.
> >+ </li>
> >+ </ul>
>
> Do we need a list for this item? It seems a bit weird that the first
> list item is just the paper How about just a single paragraph?
>
> C++ module scanning for named modules is now available, based on the
> format described in <a href="https://wg21.link/P1689R5";>P1689R5</a>,
> Format for describing dependencies of source files. The
> <code>-fdeps-format=</code>, <code>-fdeps-file=</code>, and
> <code>-fdeps-target=</code> flags may be used to generate dependency
> information. In GCC 14 <code>p1689r5</code> is the only valid argument
> for <code>-fdeps-format=</code>.
Sounds good. New patch attached.
--Ben
>From d973efa9689db7d46211721e7c00feea7e6445a6 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boec...@kitware.com>
Date: Thu, 2 May 2024 14:00:01 -0400
Subject: [PATCH 1/1] gcc-14: document P1689R5 scanning output support
---
htdocs/gcc-14/changes.html | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
index 8dfbf7dc..8998e6c0 100644
--- a/htdocs/gcc-14/changes.html
+++ b/htdocs/gcc-14/changes.html
@@ -513,6 +513,12 @@ a work-in-progress.</p>
<li>GCC supports a new pragma <code>#pragma GCC novector</code> to
indicate to the vectorizer not to vectorize the loop annotated with the
pragma.</li>
+ <li>C++ module scanning for named modules is now available, based on the
+ format described in<a href="https://wg21.link/P1689R5";>P1689R5</a>, Format
for
+ describing dependencies of source files. The <code>-fdeps-format=</code>,
+ <code>-fdeps-file=</code>, and <code>-fdeps-target=</code> flags may be
+ used to generate dependency information. In GCC 14 <code>p1689r5</code> is
+ the only valid argument for <code>-fdeps-format=</code>.</li>
</ul>
<h4 id="libstdcxx">Runtime Library (libstdc++)</h4>
--
2.44.0
