From 39cfae64dfd243fa7a7ca73643591bdebc1cf1e9 Mon Sep 17 00:00:00 2001
From: Kusanagi Kouichi <slash@ac.auone-net.jp>
Date: Sun, 26 Sep 2010 14:17:42 -0300
Subject: [PATCH] perf tools: Fix build breakage

The patch ecafda6 introduced a problem where all object files would be
always rebuilt, fix it by using:

http://www.gnu.org/software/make/manual/html_node/Prerequisite-Types.html

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Bernd Petrovitsch <bernd@sysprog.at>
Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Reading git-format-patch failed