tree 10f11b4e836e81a8a51622284f8cec7594a95694
parent 367bd9591c456876be29e85ef12af60a5d2f882c
author David Grove <groved@us.ibm.com> 1474666522 -0400
committer David Grove <groved@us.ibm.com> 1474666522 -0400

Add dependency on swiftc for %.o.%.swift rules

Detect that swiftc has changed since the Swift file has
been compiled and force it to be recompiled.  The explicit
rm of the target before regenerating it is needed because if
the new compiler generates exactly the same bits as the old
one the .o file isn't updated and the target gets stuck as
being out-of-date.  An explicit rm avoids that problem.