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>
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index 1942f6d..261a55e 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -5,7 +5,7 @@
from re import sub
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")
if cc == "clang":