[PATCH] perf tools: Don't corrupt PERF-VERSION-FILE with make debug

[Robert Richter]

When running make with debug option -d the PERF-VERSION-FILE gets
corrupted because make is noisy:

 PERF-VERSION-FILE:2: *** missing separator.  Stop.

Fixing this by not passing the make flags in the MAKEFLAGS environment
variable to the sub-make that generates the version string.

Signed-off-by: Robert Richter <robert.richter@xxxxxxx>
---
 tools/perf/util/PERF-VERSION-GEN |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 9c5fb4d..ad73300 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -23,7 +23,7 @@ if test -d ../../.git -o -f ../../.git &&
 then
 	VN=$(echo "$VN" | sed -e 's/-/./g');
 else
-	VN=$(make -sC ../.. kernelversion)
+	VN=$(MAKEFLAGS= make -sC ../.. kernelversion)
 fi
 
 VN=$(expr "$VN" : v*'\(.*\)')
-- 
1.7.5.3


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