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From: Bernhard Walle <bernhard@bwalle.de>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: mmarek@suse.cz, lacombar@gmail.com, linux-kernel@vger.kernel.org,
	linux-kbuild <linux-kbuild@vger.kernel.org>,
	zippel@linux-m68k.org
Subject: Re: [PATCH] scripts/Kbuild.include: Fix portability problem of "echo -e"
Date: Sun, 26 Feb 2012 18:51:34 +0100	[thread overview]
Message-ID: <4F4A7126.6020009@bwalle.de> (raw)
In-Reply-To: <20120226174805.GA562@merkur.ravnborg.org>

Am 26.02.12 18:48, schrieb Sam Ravnborg:
>> > --- a/scripts/Kbuild.include
>> > +++ b/scripts/Kbuild.include
>> > @@ -104,7 +104,7 @@ as-option = $(call try-run,\
>> >  # Usage: cflags-y += $(call as-instr,instr,option1,option2)
>> >  
>> >  as-instr = $(call try-run,\
>> > -	/bin/echo -e "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
>> > +	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
>> >  
>> >  # cc-option
>> >  # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
> Roman Zippel removed use of printf in this patch: beda9f3a13bbb22cde92a45f230a02ef2afef6a9
> 
> I cannot remember why - but it would be good if you could dig up
> why - just so we do not hit an old issue again.

Well, he used printf "$(1)", that's different from printf "%b\n" "$(1)"
since format strings inside $(1) would be interpreted.

But maybe Roman can comment on that? Cc'ing him.


Regards,
Bernhard




  reply	other threads:[~2012-02-26 17:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1330277718-2667-1-git-send-email-bernhard@bwalle.de>
2012-02-26 17:48 ` [PATCH] scripts/Kbuild.include: Fix portability problem of "echo -e" Sam Ravnborg
2012-02-26 17:51   ` Bernhard Walle [this message]
2012-02-26 21:05     ` Sam Ravnborg
2012-03-19 17:44       ` Bernhard Walle
2012-03-24 22:33         ` Michal Marek

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