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Date: Mon, 8 Feb 2016 17:28:22 -0500 (EST)
From: Nicolas Pitre <nicolas.pitre@linaro.org>
To: Sam Ravnborg <sam@ravnborg.org>
cc: Michal Marek <mmarek@suse.com>, linux-kbuild@vger.kernel.org,
        linux-kernel@vger.kernel.org, Al Viro <viro@ZenIV.linux.org.uk>,
        Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [PATCH 1/6] kbuild: record needed exported symbols for modules
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On Mon, 8 Feb 2016, Sam Ravnborg wrote:

> >  
> > +# List module undefined symbols
> > +ifdef CONFIG_TRIM_UNUSED_EXPSYMS
> > +cmd_undef_syms = $(NM) $@ | sed -n 's/^ \+U \(.*\)/\1/p' | xargs echo
> > +else
> > +cmd_undef_syms = echo
> > +endif
> Use ":" as a "do nothing" cammand. Then you do not emit an empty line.

I wanted to emit that empty line though. This way it is less likely that 
it'll be reused for other purposes.


Nicolas