linux-kernel - Re: cross-compiling on OS X, make menuconfig fails

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Date:	Tue, 29 Apr 2008 09:51:51 -0500
From:	Timur Tabi <timur@...escale.com>
To:	Roland Kuhn <rkuhn@....physik.tu-muenchen.de>
CC:	linux-kernel@...r.kernel.org
Subject: Re: cross-compiling on OS X, make menuconfig fails

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
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