[tip:perf/core] perf tools: Allow to specify lib compile variable for spec usage

[tip-bot for Jiri Olsa]

Commit-ID:  6997af72e6c1e9d8c1cc511dc9485e9ee69a5e20
Gitweb:     http://git.kernel.org/tip/6997af72e6c1e9d8c1cc511dc9485e9ee69a5e20
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Mon, 25 Aug 2014 16:55:52 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 17 Sep 2014 17:08:08 -0300

perf tools: Allow to specify lib compile variable for spec usage

We need a way to specify $(lib) part of the installation path for
traceevent plugin libraries. Currently we use 'lib64' for x86_64 and
'lib' otherwise.

Instead of listing all possible values, this change allows the rpm spec
code to specify the correct $(lib) part based on processed architecture,
like

  $ make ... lib=%{_lib}

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Tested-by: Kyle McMartin <kyle@xxxxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Kyle McMartin <kyle@xxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1408978552-17131-1-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/config/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 98c9fd1..58f6091 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -653,11 +653,13 @@ else
 sysconfdir = $(prefix)/etc
 ETC_PERFCONFIG = etc/perfconfig
 endif
+ifndef lib
 ifeq ($(IS_X86_64),1)
 lib = lib64
 else
 lib = lib
 endif
+endif # lib
 libdir = $(prefix)/$(lib)
 
 # Shell quote (do not use $(call) to accommodate ancient setups);
--
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