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From: Timur Tabi <timur@freescale.com>
To: Roland Kuhn <rkuhn@e18.physik.tu-muenchen.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: cross-compiling on OS X, make menuconfig fails
Date: Tue, 29 Apr 2008 09:51:51 -0500	[thread overview]
Message-ID: <48173607.6080307@freescale.com> (raw)
In-Reply-To: <8FEAC32C-868F-468C-B383-8450D400691C@e18.physik.tu-muenchen.de>

Roland Kuhn wrote:

> For some strange reason Apple decided to change 'echo':
> 
> /bin/bash -c 'echo -e ...' does the right thing
> /bin/sh -c 'echo -e ...' keeps the "-e" in the output but interprets  
> the \n
> /bin/echo -e ... does no interpretation and even keeps the \n

Wow, that is messed up.  Especially since "/bin/sh --version" and "/bin/bash
--version" give me the same output.

Would you say that OS X is broken?  I'm having a hard time finding documentation
for 'sh', so I can't find out what echo -e  is supposed to do in 'sh'.

I read in the latest Linux Journal magazine that someone noticed that even
though the kernel scripts say #!/bin/sh, many of them are really bash scripts.
This person went through the effort of changing the script to be true 'sh'
scripts.  Has that code been merged in?

> I'd recommend installing the coreutils-default package from fink, then  
> you get a sane /sw/bin/echo.

But the scripts still reference /bin/sh, so I would need to change the scripts
or symlink /bin/sh.  If I'm going to symlink /bin/sh, I'd rather just symlink it
to /bin/bash.

> Side-note on sanity: ISTR that POSIX defines echo in this (/bin/echo)  
> strange way, urging people to use printf instead.

But printf is bash, not sh.  I would need to change #!/bin/sh to #!/bin/bash.

-- 
Timur Tabi
Linux kernel developer at Freescale

  reply	other threads:[~2008-04-29 14:59 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-28  1:34 cross-compiling on OS X, make menuconfig fails timur
2008-04-28  1:51 ` Tony Breeds
2008-04-29 15:07   ` Timur Tabi
2008-04-29 16:45     ` Sam Ravnborg
2008-04-29 17:20       ` Al Viro
2008-04-29 18:06         ` Sam Ravnborg
2008-04-30 13:54           ` Timur Tabi
2008-04-30 14:18             ` Sam Ravnborg
2008-05-03  6:55           ` SL Baur
2008-05-03  8:01             ` Sam Ravnborg
2008-05-03  8:40             ` Roland Kuhn
2008-05-03  9:34               ` SL Baur
2008-05-12 13:22                 ` Arnd Hannemann
2008-04-28 18:46 ` Roland Kuhn
2008-04-29 14:51   ` Timur Tabi [this message]
2008-04-29 16:45     ` Sam Ravnborg
2008-04-29 16:48       ` Al Viro
2008-04-29 20:27       ` Why use /bin/sh in kernel build system? Mark Rustad
2008-04-29 21:41         ` Alexey Dobriyan
2008-04-29 22:24           ` Willy Tarreau
2008-04-29 22:40             ` Timur Tabi
2008-04-30  9:42             ` SL Baur
2008-04-30 11:48             ` Jan Engelhardt
2008-04-29 22:46     ` cross-compiling on OS X, make menuconfig fails Bernd Petrovitsch
  -- strict thread matches above, loose matches on Subject: below --
2008-04-28  1:34 Timur Tabi

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