linux-kernel - Re: [PATCH] perf auto-dep: Speed up feature tests by building them in parallel

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Message-ID: <20130930174639.GH10293@ghostprotocols.net>
Date:	Mon, 30 Sep 2013 14:46:39 -0300
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	David Ahern <dsahern@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...il.com>
Subject: Re: [PATCH] perf auto-dep: Speed up feature tests by building them
 in parallel

Em Mon, Sep 30, 2013 at 02:39:14PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Mon, Sep 30, 2013 at 02:36:27PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Another suggestion: To provide a short sentence with each feature
> > stating what will be not present when something is "OFF", or even a
> > sentence stating what the feature is about, so the user get a better
> > picture of what is (not) being built into his tool.
> > 
> > Probably reusing strings we already have in the makefiles.
> 
> And also reusing existing strings to tell the user which devel packages
> should be installed to get that feature built/enabled.

config/Makefile:187: No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev
config/Makefile:251: No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99
config/Makefile:279: slang not found, disables TUI support. Please install slang-devel or libslang-dev
config/Makefile:292: GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev
config/Makefile:346: The path '/usr/bin/python-config' is not executable.
config/Makefile:350: No python-config tool was found
config/Makefile:350: Python support will not be built
config/Makefile:444: No numa.h found, disables 'perf bench numa mem' benchmark, please install numa-libs-devel or libnuma-dev

My bad, its still there, sorry for the noise 8-)

I'm testing removing devel packages, one by one, removing gtk2-devel provides
the biggest reduction in build time, no surprises :)

- Arnaldo
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