tree 4d8613d280161c1471713f1fd1b78f3f8111668e
parent e41652c988d198c2a386c98970ab6acedf738598
author Dan Willemsen <dwillemsen@google.com> 1597364681 -0700
committer Dan Willemsen <dwillemsen@google.com> 1597364681 -0700

Improve depfilemulti warning

Instead of going straight to stderr without any context, instead put the
warning into the output of the action that triggered it, so that it can
be properly attributed when using the protobuf status serializer:

[ 50% 358/708] //external/crosvm/msg_socket/msg_on_socket_derive:libmsg_on_socket_derive rustc msg_on_socket_derive.rs
ninja: warning: depfile has multiple output paths (on separate lines); continuing anyway [-w depfilemulti=warn]

In the case where we're loading the depfile at startup (when not using
the deps database), continue using the Warning() to stderr, but at least
prefix the message with which depfile caused the warning.

Test: mmma external/crosvm
Change-Id: I4cf6a9af71596e2d0745408da25ca5e100f50561