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perf python: Make clang_has_option() work on Python 3 

Use a bytes literal so it works with Python 3's version of Popen().
Note that the b"..." syntax requires Python 2.6+.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20181005204058.7966-2-ehabkost@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Eduardo Habkost 2018-10-05 17:40:57 -03:00 committed by Arnaldo Carvalho de Melo
parent 1e44224fb0
commit e13a5d69c3
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/setup.py
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@ -5,7 +5,7 @@ from subprocess import Popen, PIPE
from re import sub from re import sub
def clang_has_option(option): def clang_has_option(option):
return [o for o in Popen(['clang', option], stderr=PIPE).stderr.readlines() if "unknown argument" in o] == [ ] return [o for o in Popen(['clang', option], stderr=PIPE).stderr.readlines() if b"unknown argument" in o] == [ ]
cc = getenv("CC") cc = getenv("CC")
if cc == "clang": if cc == "clang":