From: Michal Marek <mmarek@suse.cz>
To: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Sam Ravnborg <sam@ravnborg.org>, linux-kbuild@vger.kernel.org
Subject: Re: [PATCH] kbuild: document KBUILD_SHELL
Date: Tue, 10 Jun 2014 13:36:48 +0200 [thread overview]
Message-ID: <5396EDD0.8030406@suse.cz> (raw)
In-Reply-To: <20140610201706.9614.AA925319@jp.panasonic.com>
On 2014-06-10 13:17, Masahiro Yamada wrote:
> IMHO:
> If all shell scripts invoked by $KBUILD_SHELL should be sh-compatible,
> "KBUILD_SHELL" should always be set to "/bin/sh" and
> users should not change it.
>
> I still don't understand why bash is preferable for KBUILD_SHELL.
I'm just speculating, but the reason might have been that if you are
compiling Linux on some oddball UNIX system, the POSIX shell might not
be "/bin/sh", but some other path, who knows which. But if $BASH is
defined or if there is /bin/bash, then it's very likely the familiar GNU
Bash. Hence the preference. Of course, the side effect is that it makes
it easy to introduce bash-only constructs into the scripts :-/.
Michal
next prev parent reply other threads:[~2014-06-10 11:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-10 2:51 [PATCH] kbuild: document KBUILD_SHELL Masahiro Yamada
2014-06-10 9:27 ` Michal Marek
2014-06-10 9:50 ` Sam Ravnborg
2014-06-10 11:00 ` Michal Marek
2014-06-10 11:17 ` Masahiro Yamada
2014-06-10 11:36 ` Michal Marek [this message]
2014-06-10 12:02 ` Masahiro Yamada
2014-06-10 12:22 ` Michal Marek
2014-06-10 12:55 ` Masahiro Yamada
2014-06-26 2:02 ` Masahiro Yamada
2014-07-04 22:01 ` Michal Marek
2014-06-10 19:56 ` Sam Ravnborg
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