Julien Lerouge a67d14f5a3 lldb can interrupt waitpid, so EINTR shouldn't be an error. This fixes the case ...

where there is no timeout. In the case where there is a timeout though, the
code is still wrong since it doesn't check that the alarm really went off.

Without this patch, I cannot debug a program that forks itself using
sys::ExecuteAndWait with lldb.

llvm-svn: 211918

2014-06-27 18:02:54 +00:00

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