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From: "Theodore Tso" <tytso@mit.edu>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Ext4 Developers List <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH 1/3] libsupport: fix portability issues with the bthread.c
Date: Fri, 3 Apr 2026 07:53:13 -0400	[thread overview]
Message-ID: <20260403115313.GA12260@macsyma-wired.lan> (raw)
In-Reply-To: <20260403041624.GD6254@frogsfrogsfrogs>

On Thu, Apr 02, 2026 at 09:16:24PM -0700, Darrick J. Wong wrote:
> > -/* Define to 1 if fuse supports cache_readdir */
> > -#undef HAVE_FUSE_CACHE_READDIR
> 
> Huh, there's a lot of churn in this file.  Do you have a magic script
> somewhere that regenerates config.h.in?

It's "autoheader".  Whenver you add or remove tests to configure.ac,
you need to run "autoconf ; autoheader".  If you don't run
"autoheader", then even if the autoconf's feature test enables some
new feature test, say HAVE_PR_SET_IO_FLUSHER, the feature won't
actually be enabled in the #ifdef.

Cheers,

							- Ted

  reply	other threads:[~2026-04-03 11:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-03  4:03 [PATCH -e2fsprogs 0/3] Fix portability issues on MacOS Theodore Ts'o
2026-04-03  4:03 ` [PATCH 1/3] libsupport: fix portability issues with the bthread.c Theodore Ts'o
2026-04-03  4:16   ` Darrick J. Wong
2026-04-03 11:53     ` Theodore Tso [this message]
2026-04-03 15:15       ` Darrick J. Wong
2026-04-03 21:00         ` Theodore Tso
2026-04-03  4:03 ` [PATCH 2/3] libsupport: add a portable get_thread_id() function Theodore Ts'o
2026-04-03  4:17   ` Darrick J. Wong
2026-04-03  4:03 ` [PATCH 3/3] fuse2fs: fix build failure on systems which don't define EUCLEAN Theodore Ts'o
2026-04-03  4:18   ` Darrick J. Wong

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