tree d44cc406c7fe619ba58897b0f8b6e43877bd5783
parent a3e50fb64268e1dff87e71a76bddb9c027253db6
author Shawn Pearce <sop@google.com> 1368208908 -0700
committer Shawn Pearce <sop@google.com> 1368634306 -0700

genrule() should fail if any command fails

If a genrule is a complex sequence of shell commands the rule
should fail if any of the commands fails and its exit status was
not examined.

Fixes https://github.com/facebook/buck/issues/21