tree c81d368ca2d96a1336b28e7d3b0a1382366559e3
parent 570cd0f4c06a6e3de2af348040415ff2fcff57a1
author Ying Wang <wangying@google.com> 1377301813 -0700
committer Ying Wang <wangying@google.com> 1377303557 -0700

Better aidl generated dependency

Previously if an imported aidl file has been deleted or moved,
the generated dependency file still contains the stale file name,
and make will fail with "No rule to make target <the deleted/moved
file>".
This change uses technique described in section "Automatic Dependency
Generation", Chapter 8 of "Managing Projects with GNU Make (3d
Edition)".
The same technique is used by the Android platform build system to
generate C/C++ header dependencies.

Bug: 10459179
Change-Id: Ib0c01a4234ef1af994487fdc846cdf8d13a675f6