Re: [PATCH] xfs-cmds: fix parallel installs in include/ dirs

From: Mike Frysinger <vapier@gentoo.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Eric Sandeen <sandeen@sandeen.net>, xfs-oss <xfs@oss.sgi.com>
Subject: Re: [PATCH] xfs-cmds: fix parallel installs in include/ dirs
Date: Tue, 30 Dec 2008 09:07:30 -0500	[thread overview]
Message-ID: <200812300907.31459.vapier@gentoo.org> (raw)
In-Reply-To: <20081230124936.GA26322@infradead.org>

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On Tuesday 30 December 2008 07:49:36 Christoph Hellwig wrote:
> On Tue, Dec 30, 2008 at 06:52:24AM -0500, Christoph Hellwig wrote:
> > On Mon, Dec 29, 2008 at 04:19:05PM -0600, Eric Sandeen wrote:
> > > This is for http://oss.sgi.com/bugzilla/show_bug.cgi?id=759
> > > "fix parallel issue with include/ symlinks"
> > >
> > > Doing something like "make -j2 install install-dev" would lead
> > > to a race of removing & creating symlinks in include/
> > >
> > > Thanks to Mike for reporting & suggesting the fix.
> >
> > Looks good and I've put in in my queue.
>
> Actually spoken too soon.   This breaks the acl build for me with:
>
>  gcc -g -O2 -DNDEBUG -funsigned-char -fno-strict-aliasing -Wall
>  -DVERSION=\"2.2.47\" -DLOCALEDIR=\"/usr/share/locale\"
>  -DPACKAGE=\"acl\" -I../include -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64
>  -include perm_copy.h -c acl_get_fd.c  -fPIC -DPIC -o .libs/acl_get_fd.o
>  acl_get_fd.c:27:24: error: acl/libacl.h: No such file or directory
>  acl_get_fd.c: In function 'acl_get_fd':
>  acl_get_fd.c:62: warning: implicit declaration of function
>  'acl_from_mode'
>  acl_get_fd.c:62: warning: return makes pointer from integer without a
>  cast
>
> It looks like the acl link in include/ doesn't get created properly
> with this patch.

acl-2.2.47 built fine for me with `./configure && make` and this patch ...

that said, if the only purpose of this is to make sure there are symlinks in 
include/, why not do it at the tail end of configure ?  then there will be no 
weird parallel magic to worry about, and everything will always be available 
once configure has finished.
-mike

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