linux-kernel - Re: [GIT PULL 0/3] perf/core fixes and improvements

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Date:	Mon, 19 Mar 2012 20:56:11 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...radead.org>
Cc:	linux-kernel@...r.kernel.org, Colin Walters <walters@...bum.org>,
	Namhyung Kim <namhyung@...il.com>,
	Namhyung Kim <namhyung.kim@....com>,
	Paul Mackerras <paulus@...ba.org>,
	Pekka Enberg <penberg@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	arnaldo.melo@...il.com, Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL 0/3] perf/core fixes and improvements


* Ingo Molnar <mingo@...nel.org> wrote:

> diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak
> index 8046182..68cf795 100644
> --- a/tools/perf/config/utilities.mak
> +++ b/tools/perf/config/utilities.mak
> @@ -183,6 +183,8 @@ _gea_err  = $(if $(1),$(error Please set '$(1)' appropriately))
>  # Usage: option = $(call try-cc, source-to-build, cc-options)
>  try-cc = $(shell sh -c						  \
>  	'TMP="$(OUTPUT)$(TMPOUT).$$$$";				  \
> +	 echo "$(1)" > test.$$$$.c;					  \
> +	 echo $(CC) -x c test.$$$$.c $(2) -o "$$TMP" > test.$$$$.sh;		  \
>  	 echo "$(1)" |						  \
>  	 $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \
>  	 rm -f "$$TMP"')

So, instead of this hack we'd like to output the build failure 
that gcc gives, when 'make V=1' is specified or so.

Thanks,

	Ingo
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