meta: replace os.system with subprocess.call

Replace os.system with subprocess.call since the older function would
fail (more or less) silently if the executed program cannot be found

More info:
http://docs.python.org/library/subprocess.html#subprocess-replacements

[YOCTO #2454]

(From OE-Core rev: a07d03cc6f67c88feb9813ae7deb6e4a93552dfe)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/meta/lib/oe/distro_check.py b/meta/lib/oe/distro_check.py
index cc836de38d..455135e650 100644
--- a/meta/lib/oe/distro_check.py
+++ b/meta/lib/oe/distro_check.py
@@ -343,6 +343,7 @@ def compare_in_distro_packages_list(distro_check_dir, d):
     return matching_distros
 
 def create_log_file(d, logname):
+    import subprocess
     logpath = d.getVar('LOG_DIR', True)
     bb.utils.mkdirhier(logpath)
     logfn, logsuffix = os.path.splitext(logname)
@@ -351,7 +352,7 @@ def create_log_file(d, logname):
             slogfile = os.path.join(logpath, logname)
             if os.path.exists(slogfile):
                     os.remove(slogfile)
-            os.system("touch %s" % logfile)
+            subprocess.call("touch %s" % logfile, shell=True)
             os.symlink(logfile, slogfile)
             d.setVar('LOG_FILE', logfile)
     return logfile