tree 7939393cef1d255357d5adfac5debb2c89c6d654
parent 0001c12d3db5ce2d13e6a3e811c304911f923ae9
author Shawn Pearce <sop@google.com> 1368208908 -0700
committer Shawn Pearce <sop@google.com> 1371235456 -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