[PATCH] D55443: [test] Capture stderr from 'tar --version' call as well

[Michał Górny via Phabricator via cfe-commits]

mgorny updated this revision to Diff 177250.
mgorny marked 2 inline comments as done.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55443/new/

https://reviews.llvm.org/D55443

Files:
  test/lit.cfg.py


Index: test/lit.cfg.py
===================================================================
--- test/lit.cfg.py
+++ test/lit.cfg.py
@@ -94,7 +94,10 @@
 tar_executable = lit.util.which('tar', config.environment['PATH'])
 if tar_executable:
     tar_version = subprocess.Popen(
-        [tar_executable, '--version'], stdout=subprocess.PIPE, env={'LANG': 'C'})
-    if 'GNU tar' in tar_version.stdout.read().decode():
+        [tar_executable, '--version'],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        env={'LANG': 'C'})
+    sout, serr = tar_version.communicate()
+    if 'GNU tar' in sout.decode():
         config.available_features.add('gnutar')
-    tar_version.wait()


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